JPH0953208A - Method of reinforcing construction of pier and reinforcing-frame fixture - Google Patents
Method of reinforcing construction of pier and reinforcing-frame fixtureInfo
- Publication number
- JPH0953208A JPH0953208A JP22723995A JP22723995A JPH0953208A JP H0953208 A JPH0953208 A JP H0953208A JP 22723995 A JP22723995 A JP 22723995A JP 22723995 A JP22723995 A JP 22723995A JP H0953208 A JPH0953208 A JP H0953208A
- Authority
- JP
- Japan
- Prior art keywords
- frame
- pier
- reinforcing
- ground
- pieces
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は橋脚の補強作業を高
速かつ合理的に施工できるとともに、施工精度の信頼性
を向上できるようにした橋脚の補強工法および補強枠取
付装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pier reinforcement method and a reinforced frame mounting device capable of performing a pier reinforcement work at high speed and rationally and improving the reliability of construction accuracy.
【0002】[0002]
【従来の技術】阪神大震災によって鉄道や道路等の構造
物は甚大な被害を受け、その速やかな復旧とともに、地
震に対する輸送の一層の安全性を要請され、仮に同程度
の地震が発生した場合でも、既設構造物の崩壊や鉄橋の
落橋を免れるように、橋脚の耐震強度を強化し、その補
強工事を早急に施工することが望まれている。2. Description of the Related Art Structures such as railways and roads have been severely damaged by the Great Hanshin Earthquake and promptly restored, and even greater safety of transportation against earthquakes is required, even if an earthquake of the same level occurs. In order to avoid collapse of existing structures and collapse of iron bridges, it is desirable to strengthen the seismic strength of the piers and carry out reinforced work immediately.
【0003】従来、橋脚の耐震強度補強法として、例え
ば高架道路の橋脚においては、いわゆるレッカー等の重
機を駆使して橋脚の地中部および地上部に補強用鉄板を
被覆し、該鉄板と橋脚との間にエポキシ樹脂またはモル
タルを充填して行なっていた[0003] Conventionally, as a method of reinforcing the pier's seismic strength, for example, in a bridge pier on an elevated road, a heavy steel machine such as a so-called wrecker is used to cover the underground portion and the ground portion of the pier with a reinforcing iron plate, and the steel plate and the pier are connected to each other. Between them was filled with epoxy resin or mortar
【0004】しかし、この従来の方法は、橋脚の地中部
の掘削を要して、作業が煩雑かつ大掛かりになるととも
に、地上部に作業用足場の組み立てを要して、補強工事
が大掛かりになり、工費の上昇と工期の長期化を助長す
る等の問題があった。However, this conventional method requires excavation of the underground portion of the pier, which requires complicated and large-scale work, and requires assembly of a scaffold for work on the ground portion, resulting in large-scale reinforcement work. However, there were problems such as an increase in construction cost and a longer construction period.
【0005】[0005]
【発明が解決しようとする課題】本発明はこのような問
題を解決し、橋脚の補強作業を高速かつ合理的に施工で
きるとともに、施工精度の信頼性を向上できるようにし
た橋脚の補強工法および補強枠取付装置を提供すること
を目的とする。SUMMARY OF THE INVENTION The present invention solves such a problem and enables a pier reinforcement work to be carried out at high speed and rationally, and at the same time, to improve the reliability of construction accuracy. An object is to provide a reinforcing frame attachment device.
【0006】[0006]
【課題を解決するための手段】請求項1の発明は、橋脚
の周面に補強枠を装着し、該枠と橋脚との間に填充材を
充填する橋脚の補強工法において、橋脚の地中部に装着
する筒状の地下枠を橋脚の周囲に配置し、該地下枠を振
動させるとともに、地下枠と橋脚との間に高圧水を圧送
し、地下枠を沈下打設して、の高速施工を実現し、設備
の小型化と設備費の低廉を図れるとともに、作業範囲を
地下枠と橋脚との間に限定して規模を縮小し、しかも掘
削量の少量化を図れるようにしている。請求項2の発明
は、地下枠の上端部を地上の所定高さに突出させ、地上
枠との連結を容易に行なえるようにしている。請求項3
の発明は、半割状の一対の枠片を筒状に接続した複数の
地上枠を橋脚の地上部に重合して装着し、該枠と橋脚と
の間に填充材を充填する橋脚の補強工法において、各地
上枠の枠片を地上より所定高さの橋脚位置で接続し、該
接続した地上枠を順次上方へ移動し、該地上枠に直下の
地上枠を装着して、地上枠の移動範囲を抑制し、このた
めの移動装置の小能力化を図れるようにしている。請求
項4の発明は、半割状の一対の枠片を筒状に接続した複
数の地上枠を橋脚の地上部に重合して装着し、該枠と橋
脚との間に填充材を充填する橋脚の補強工法において、
地上枠を順次下方から装着し、該枠を安定かつ確実に装
着できるようにしている。請求項5の発明は、橋脚の周
面に複数の補強枠を上下方向に重合して装着し、該枠と
橋脚との間に填充材を充填する橋脚の補強工法におい
て、隣接する上下の補強枠の接合部を非連結状態とし、
橋脚に靱性を与えるようにしている。請求項6の発明
は、橋脚の周面に半割状の一対の枠片を装着し、該枠片
の軸方向の端部を接続し、該枠と橋脚との間に填充材を
充填する橋脚の補強工法において、前記枠片の軸方向の
接合部をボルト若しくはビスによるネジ連結、または鋲
結、釘結、針結等の手段を介して、それらの機械的な連
結を実現するようにしている。請求項7の発明は、橋脚
の周面に半割状の一対の枠片を装着し、該枠片の軸方向
の端部を接続し、該枠と橋脚との間に填充材を充填する
橋脚の補強工法において、前記枠片の軸方向の接合部
に、互いに係合可能な複数の係合凹部と係合凸部とを設
け、これら係合凹部と係合凸部とをネジ連結し、枠片を
強固に接続するようにしている。請求項8の発明は、係
合凹部と係合凸部との係合を介して、これらの移動を拘
束し、ネジ連結前に枠片を接続可能にしている。請求項
9の発明は、一対の枠片を金属製または合成樹脂製と
し、各種部材の枠片の機械的な連結を実現するととも
に、合成樹脂製の枠片による軽量化と、取り扱いの至便
化、組み付け時の融通性を図るようにしている。請求項
10の発明は、一対の合成樹脂製の枠片の軸方向端部を
溶着して接続し、該枠片を強固に接続するようにしてい
る。請求項11の発明は、アンカーブロックを設けた固
定枠を橋脚の周面に固定し、該固定枠の外側に補強枠を
配置し、該枠を上記ブロックを介してネジ連結し、補強
枠の簡便な取付けを実現するとともに、上記ブロックを
橋脚と補強枠との間隔保持部材に機能させている。請求
項12の発明は、補強枠の内面に弾性変位可能な複数の
スペーサを設け、該スペーサを橋脚周面に係合可能に配
置して、補強枠と橋脚との間に一様な間隔を形成させ、
填充材の均一な充填を可能にしている。請求項13の発
明は、填充材を吐出可能な注入ホースを補強枠と橋脚と
の間に上下動可能に設け、該ホースの吐出口内に充填検
出センサを設け、この検出信号を介して注入ホースを上
動可能にし、填充材を円滑に填充し、填充時の衝撃を低
減するようにしている。請求項14の発明は、地上枠に
吸着可能なマグネットを有するコラムクランプを介して
地上枠を束縛し、該クランプを簡易かつ迅速に取付けら
れるようにしている。請求項15の発明は、上下動可能
な作業台と、補強枠を保持可能な吸着装置を備えた補強
枠取付装置において、一対の作業台を橋脚を挟んで連結
可能にするとともに、前記吸着装置を橋脚に向けて近接
離反動可能にし、作業台を橋脚に沿って安定して移動
し、補強枠を手際良く取付けられるようにしている。請
求項16の発明は、一対の作業台を備え、該作業台を吸
着装置と同動可能にし、補強枠の取付けを能率良く行な
えるようにしている。According to a first aspect of the present invention, there is provided a pier reinforcement method in which a reinforcing frame is attached to a peripheral surface of the pier and a filling material is filled between the frame and the pier. A cylindrical underground frame to be mounted on the pier is placed around the pier, the underground frame is vibrated, high-pressure water is pumped between the underground frame and the pier, and the underground frame is sunk and placed, for high-speed construction. In addition to reducing the size of the equipment and the cost of the equipment, the work range is limited between the underground frame and the bridge pier to reduce the scale and the amount of excavation can be reduced. According to the second aspect of the invention, the upper end of the underground frame is projected to a predetermined height above the ground so that it can be easily connected to the above-ground frame. Claim 3
Of the invention, a plurality of above-ground frames in which a pair of half-frame-shaped frame pieces are connected in a cylindrical shape are superposed on the above-ground portion of a pier and mounted, and a reinforcement of the pier is filled with a filling material between the frames and the pier. In the construction method, the frame pieces of each above-ground frame are connected at a pier position at a predetermined height above the ground, the connected above-ground frames are sequentially moved upward, and the above-mentioned ground frames are attached directly to the above-mentioned ground frames. The range of movement is suppressed, and the capacity of the moving device can be reduced for this purpose. According to a fourth aspect of the present invention, a plurality of above-ground frames in which a pair of half-framed frame pieces are connected in a tubular shape are superposed on the above-ground portion of the pier and mounted, and a filling material is filled between the frames and the pier. In the pier reinforcement method,
The ground frames are sequentially mounted from below so that the frames can be mounted stably and reliably. According to the invention of claim 5, a plurality of reinforcing frames are vertically overlapped and mounted on the peripheral surface of the pier, and a filling material is filled between the frames and the pier. Make the joint part of the frame unconnected,
It is designed to give toughness to the pier. According to a sixth aspect of the present invention, a pair of half-divided frame pieces are attached to the peripheral surface of the pier, the axial end portions of the frame pieces are connected, and a filling material is filled between the frame and the pier. In the pier reinforcement method, the mechanical connection of the axial joints of the frame pieces should be realized by screw connection with bolts or screws, or by means of tacks, nails, needles, etc. ing. According to a seventh aspect of the present invention, a pair of half-divided frame pieces are attached to the peripheral surface of the pier, the axial end portions of the frame pieces are connected, and a filling material is filled between the frame and the pier. In the bridge pier reinforcement method, a plurality of engaging concave portions and engaging convex portions that can be engaged with each other are provided at an axial joint portion of the frame piece, and these engaging concave portions and the engaging convex portions are screw-connected. , The frame pieces are firmly connected. According to the invention of claim 8, the movement of the engagement concave portion and the engagement convex portion is restrained through the engagement between the engagement concave portion and the engagement convex portion, and the frame piece can be connected before the screw connection. In the invention of claim 9, the pair of frame pieces are made of metal or synthetic resin to realize mechanical connection of the frame pieces of various members, and the frame pieces made of synthetic resin reduce weight and facilitate handling. , It is designed to be flexible when assembled. According to the tenth aspect of the invention, the axial end portions of the pair of frame pieces made of synthetic resin are welded and connected to each other to firmly connect the frame pieces. According to the invention of claim 11, a fixed frame provided with an anchor block is fixed to a peripheral surface of a pier, a reinforcing frame is arranged on the outer side of the fixed frame, and the frame is screw-connected through the block, and In addition to realizing simple attachment, the block functions as a space holding member between the pier and the reinforcing frame. According to a twelfth aspect of the present invention, a plurality of elastically displaceable spacers are provided on the inner surface of the reinforcing frame, and the spacers are arranged so as to be engageable with the peripheral surface of the pier so that a uniform space is provided between the reinforcing frame and the pier. Let it form
This allows for uniform filling of the filling material. According to the invention of claim 13, an injection hose capable of discharging the filling material is provided so as to be vertically movable between the reinforcing frame and the pier, and a filling detection sensor is provided in the discharge port of the hose, and the injection hose is supplied via this detection signal. The filling material is smoothly filled, and the impact at the time of filling is reduced. According to the fourteenth aspect of the present invention, the ground frame is constrained through the column clamp having the magnet that can be attracted to the ground frame, and the clamp can be easily and quickly attached. According to a fifteenth aspect of the present invention, in a reinforcement frame mounting device including a vertically movable work platform and a suction device capable of holding a reinforcement frame, a pair of work platforms can be connected with a bridge pier interposed therebetween, and the suction device is provided. The work platform can be stably moved along the pier, and the reinforcing frame can be installed neatly. According to the sixteenth aspect of the present invention, a pair of worktables are provided, the worktables can be moved together with the suction device, and the reinforcing frame can be attached efficiently.
【0007】[0007]
【発明の実施の形態】以下、本発明を鉄道や道路等の構
造物である橋脚に適用した図示の実施の形態を図面によ
り説明すると、図1乃至図17において1は矩形断面の
鉄筋コンクリート製の橋脚で、その上端には地上梁2が
設けられ、該梁2に道床、枕木、レールからなる軌道
(図示略)が敷設され、また橋脚1の下端は地下に埋設
した塊状の地中梁3に連結され、該橋脚1の地下部1a
と地上部1bの周面に、耐震強度強化用の補強枠4が装
着される。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a preferred embodiment of the present invention applied to a bridge pier which is a structure such as a railway or a road will be described with reference to the drawings. In FIGS. 1 to 17, 1 is a reinforced concrete having a rectangular cross section. A bridge pier is provided with a ground beam 2 at its upper end, and a track (not shown) consisting of a roadbed, sleepers, and rails is laid on the beam 2, and a lower end of the pier 1 is a massive underground beam 3 buried underground. Connected to the basement 1a of the pier 1
A reinforcing frame 4 for strengthening the seismic resistance is attached to the peripheral surface of the ground portion 1b.
【0008】補強枠4は橋脚1と相似形状の鉄製の管体
で構成され、これは橋脚1の地下部1aに装着する地下
枠4(I)と、橋脚1の地上部1bに装着する地上枠4
(II)とで構成され、このうち地下枠4(I)は地中
梁3より地上に突出する単一の枠体で構成され、その地
上突出高hは、地上枠4(II)の施工を能率良く行な
える所望高さ、この実施形態では50cmに設定されて
いる。The reinforcing frame 4 is composed of an iron pipe body having a shape similar to that of the pier 1. This is an underground frame 4 (I) to be mounted on the underground portion 1a of the pier 1 and an aboveground portion to be mounted on the aboveground portion 1b of the pier 1. Frame 4
(II), of which the underground frame 4 (I) is composed of a single frame that projects above the ground beam 3 above the ground, and the above-ground projecting height h is the construction of the above-ground frame 4 (II). The height is set to be 50 cm in this embodiment, which is a desired height for efficiently performing.
【0009】地上枠4(II)は、地下枠4(I)と同
長の二つの枠体と、地下枠4(I)より若干短小の枠体
との複数の枠体で構成されている。これらの地下枠4
(I)と地上枠4(II)とは、鋼板を略コ字形に屈曲
成形した一対の枠片4a〜4hを向き合わせ、その接合
部5を縦方向に溶接するとともに、上下に隣接する枠片
4a〜4hの接合部6を横方向に溶接して、順次上下方
向に組み付けられている。The above-ground frame 4 (II) is composed of a plurality of frame bodies, two frame bodies having the same length as the underground frame 4 (I) and a frame body slightly shorter than the underground frame 4 (I). . These underground frames 4
(I) and the ground frame 4 (II) are a frame in which a pair of frame pieces 4a to 4h formed by bending a steel plate into a substantially U-shape are opposed to each other, and the joint portion 5 is welded in the vertical direction, and the frames are vertically adjacent to each other. The joint portions 6 of the pieces 4a to 4h are welded in the lateral direction and are sequentially assembled in the vertical direction.
【0010】上記接合部5に位置する各対の枠片4a〜
4hの端部は、図13のようにテーパ状に形成され、こ
の一方、図示の場合は枠片4cの内外面に継手7,7が
突設され、これらの間に枠片4dの端部を挿入して、各
対の枠片の左右位置を位置決め可能にしている。また、
接合部6の上下に位置する枠片4a〜4hの端部は、図
15のように平坦面に形成され、この一方、図示の場合
は下側の枠片4cの内外面に継手片8,8が上向きに突
設され、これらの間に上側の枠片4eの端部を挿入し
て、上下に隣接する枠片のを位置決め可能にしている。Each pair of frame pieces 4a located at the joint portion 5
The end of 4h is formed in a taper shape as shown in FIG. 13. On the other hand, in the case of the drawing, joints 7, 7 are projectingly provided on the inner and outer surfaces of the frame piece 4c, and the end of the frame piece 4d is provided between them. By inserting, the left and right positions of each pair of frame pieces can be positioned. Also,
The end portions of the frame pieces 4a to 4h located above and below the joining portion 6 are formed into flat surfaces as shown in FIG. 15, while in the case of the illustration, the joint pieces 8 are formed on the inner and outer surfaces of the lower frame piece 4c. 8 are projected upward, and the ends of the upper frame pieces 4e are inserted between them so that the vertically adjacent frame pieces can be positioned.
【0011】各枠片4a〜4hの内面にはスペーサ9が
設けられ、該スペーサ9は弾性に優れるバネ鋼を図12
のように略く字形状に折曲して構成され、その脚片8
a,8aを橋脚1の周面に係合可能に配置され、その弾
性を介して枠片4a〜4hと橋脚1との間隔10を一様
に形成可能にしている。A spacer 9 is provided on the inner surface of each of the frame pieces 4a to 4h, and the spacer 9 is made of spring steel having excellent elasticity.
The leg piece 8 is formed by bending it into a substantially V shape as shown in FIG.
The a and 8a are arranged so as to be engageable with the peripheral surface of the pier 1, and through the elasticity thereof, the interval 10 between the frame pieces 4a to 4h and the pier 1 can be formed uniformly.
【0012】地下枠4(I)の組み立てに際しては、図
1,2のように橋脚1の基部に架台11を設置し、この
架台11に一対の枠片4a,4bを向き合わせて載置
し、かつそれらの端部を突き合わせて、その接合部を縦
方向、つまり管軸方向に溶接可能にしている。枠片4
a,4bの上端部には、低周波振動モータ等の振動発生
装置12が複数設置され、また枠片4a,4bの内面に
は、高圧水を供給可能な複数の高圧ホース13が配管さ
れていて、該管13の下端に噴射ノズル(図示略)が取
付けられ、その噴口を下向きに配置している。When assembling the underground frame 4 (I), a frame 11 is installed at the base of the pier 1 as shown in FIGS. 1 and 2, and a pair of frame pieces 4a and 4b are placed facing each other on the frame 11. Moreover, their ends are abutted against each other so that the joint can be welded in the longitudinal direction, that is, the pipe axis direction. Frame piece 4
A plurality of vibration generators 12 such as low-frequency vibration motors are installed at the upper ends of a and 4b, and a plurality of high-pressure hoses 13 capable of supplying high-pressure water are piped on the inner surfaces of the frame pieces 4a and 4b. Then, an injection nozzle (not shown) is attached to the lower end of the pipe 13, and the injection port is arranged downward.
【0013】地下枠4(I)を埋設後は、振動発生装置
12と高圧ホース13が撤去され、代わりに地下枠4
(I)の突出端部の外側に、一基の補強枠取付装置14
が設置される。補強枠取付装置14は汎用油圧ショベル
を改造して構成され、これは移動装置であるクローラ1
5と、運転席を備えた本体16と、屈伸可能な作業アー
ム17とからなり、該アーム17の先端に吸着装置18
を装備している。After the underground frame 4 (I) is buried, the vibration generator 12 and the high-pressure hose 13 are removed, and the underground frame 4 is replaced.
On the outside of the protruding end of (I), one reinforcing frame mounting device 14
Is installed. The reinforcing frame mounting device 14 is configured by modifying a general-purpose hydraulic excavator, and this is a crawler 1 which is a moving device.
5, a main body 16 having a driver's seat, and a work arm 17 capable of bending and stretching, and a suction device 18 is attached to the tip of the arm 17.
Equipped.
【0014】吸着装置18は図11のように、複数の枠
材を枠組したブラケット19を備え、該ブラケット19
を作業アーム17の先端に連結し、該ブラケット19
に、枠片4c〜4hを吸着可能な吸盤、またはマグネッ
ト等の複数の吸着具20を設けている。As shown in FIG. 11, the suction device 18 is provided with a bracket 19 in which a plurality of frame members are framed.
Is connected to the tip of the working arm 17, and the bracket 19
In addition, a plurality of suction tools 20 such as suction cups or magnets capable of suctioning the frame pieces 4c to 4h are provided.
【0015】地上枠4(II)の組み付けに際しては、
先ず最上部に配置する一対の枠片4g,4hをクレーン
(図示略)等の重機を用いて、橋脚1の両側の架台1
1,11に立位状態で収容し、これらを橋脚1の両側か
ら挟み込み、それらの端部を突き合わせて、その接合部
5,5を溶接機21を介して縦方向に溶接し連結する。
この状況は図3のようである。When assembling the ground frame 4 (II),
First, by using a heavy machine such as a crane (not shown), the pair of frame pieces 4g and 4h arranged at the uppermost portion are mounted on the pedestals 1 on both sides of the pier 1.
1 and 11 are housed in a standing position, they are sandwiched from both sides of the pier 1, their ends are abutted, and their joints 5 and 5 are welded and connected in the longitudinal direction via a welding machine 21.
This situation is as shown in FIG.
【0016】枠片4g,4hを連結後、架台11と溶接
機21とを撤去し、代わりに補強枠取付装置14を移動
して、何れか一方の枠片4g,4hに吸着装置18を装
着し、これを保持したところで、図4のように作業アー
ム17を垂直に上昇し、枠片4g,4hを所定高さ持ち
上げ、当該位置をアンカーボルト等適宜手段で仮止めす
る。この後、補強枠取付装置14を退去させ、代わりに
次段の枠片4e,4fをクレーン(図示略)等の重機を
用いて、橋脚1の両側の架台11,11に立位状態で収
容し、これらを橋脚1の両側から挟み込み、それらの端
部を突き合わせて、その接合部5,5を溶接機21を介
して縦方向に溶接し、連結する。After connecting the frame pieces 4g and 4h, the gantry 11 and the welding machine 21 are removed, and instead the reinforcing frame attachment device 14 is moved to attach the suction device 18 to either one of the frame pieces 4g and 4h. Then, when this is held, the work arm 17 is vertically lifted as shown in FIG. 4, the frame pieces 4g and 4h are lifted to a predetermined height, and the position is temporarily fixed by an appropriate means such as an anchor bolt. After that, the reinforcement frame attachment device 14 is withdrawn, and instead, the next-stage frame pieces 4e, 4f are accommodated in a standing position on the pedestals 11, 11 on both sides of the pier 1 using a heavy machine such as a crane (not shown). Then, these are sandwiched from both sides of the pier 1, their ends are abutted, and their joints 5 and 5 are welded in the longitudinal direction via the welder 21 to connect them.
【0017】枠片4e,4fを連結後、架台11と溶接
機21とを撤去し、代わりに補強枠取付装置14を移動
して、吸着装置18を何れか一方の枠片4g,4hに装
着し、これを保持したところで、前記アンカーボルトを
取り外し、作業アーム17を若干下降させて、枠片4
g,4hの下端部を枠片4e,4fの上端部に突き当て
る。After connecting the frame pieces 4e and 4f, the gantry 11 and the welding machine 21 are removed, and instead the reinforcing frame attachment device 14 is moved to attach the suction device 18 to one of the frame pieces 4g and 4h. Then, when this is held, the anchor bolt is removed, the working arm 17 is slightly lowered, and the frame piece 4
The lower ends of g and 4h are butted against the upper ends of the frame pieces 4e and 4f.
【0018】枠片4g,4h,4e,4fの連結後、作
業アーム17を下降させて、吸着装置18を何れか一方
の枠片4e,4fに装着し、これを保持したところで、
図5のように作業アーム17を垂直に上昇し、枠片4
g,4h,4e,4fを一体に所定高さ持ち上げ、当該
位置をアンカーボルト等適宜手段で仮止めする。After connecting the frame pieces 4g, 4h, 4e and 4f, the working arm 17 is lowered to attach the suction device 18 to one of the frame pieces 4e and 4f and hold it,
As shown in FIG. 5, the work arm 17 is vertically lifted to move the frame piece 4
The g, 4h, 4e, and 4f are integrally lifted to a predetermined height, and the position is temporarily fixed by an appropriate means such as an anchor bolt.
【0019】仮止め後、補強枠取付装置14を退去さ
せ、代わりに別の枠片4c,4dをクレーン(図示略)
等の重機を用いて、橋脚1の両側の架台11,11に立
位状態で収容し、これらを橋脚1の両側から挟み込み、
それらの端部を突き合わせて、その接合部5,5を溶接
機21を介して縦方向に溶接し、連結する。After the temporary fixing, the reinforcing frame mounting device 14 is withdrawn, and the other frame pieces 4c and 4d are replaced by a crane (not shown).
Using a heavy machine such as the above, it is housed in the pedestals 11 and 11 on both sides of the pier 1 in a standing position, and these are sandwiched from both sides of the pier 1,
The ends are abutted against each other, and the joints 5 and 5 are welded to each other in the longitudinal direction via the welding machine 21 to be connected.
【0020】枠片4c,4dの下端部は、枠片4a,4
bの上端部に接合しており、それらは非連結状態にされ
ている。この後、補強枠取付装置14を移動して、吸着
装置18を何れか一方の枠片4e,4fに装着し、これ
を保持したところで、前記アンカーボルトを取り外し、
作業アーム17を若干下降させて、該枠片4e,4fの
下端部を枠片4c,4dの上端部に突き当て、それらの
接合部6を横方向に溶接して、これらを連結すれば、枠
片4a〜4hの一連の組み付け作業が終了する。このよ
うに上下に隣接する補強枠4,4は互いに非連結状態に
されている。この状況は図6のようで、この後、架台1
1と溶接機21とを撤去し、補強枠取付装置14を移動
する。The lower ends of the frame pieces 4c and 4d are attached to the frame pieces 4a and 4d.
It is joined to the upper end of b and they are unconnected. After that, the reinforcing frame attachment device 14 is moved to attach the suction device 18 to one of the frame pieces 4e and 4f, and when this is held, the anchor bolt is removed,
By lowering the working arm 17 slightly, the lower ends of the frame pieces 4e, 4f are abutted against the upper ends of the frame pieces 4c, 4d, and the joints 6 thereof are welded in the lateral direction to connect them. A series of assembling work of the frame pieces 4a to 4h is completed. In this way, the vertically adjacent reinforcing frames 4 and 4 are not connected to each other. This situation is as shown in Fig. 6. After this, the gantry 1
1 and the welder 21 are removed, and the reinforcing frame attachment device 14 is moved.
【0021】このように地上枠4(II)の組み付け
は、一対の枠片4c〜4hを一定の地上高で橋脚1に装
着し、これを順次上方へ移動させているから、枠片4c
〜4hを下方から順に積み重ねて組み立てる方法に比べ
て、枠片4c〜4hの組み立てを低位置、実際上は地上
で行なえ、足場の組み立てを要することなく、安全かつ
迅速に行なえるとともに、作業アーム17が小揚程で足
りるから、それだけ補強枠取付装置14の低能力化を図
れ、設備費の低減を図れる。As described above, in the assembling of the ground frame 4 (II), the pair of frame pieces 4c to 4h are mounted on the pier 1 at a constant ground height, and are sequentially moved upward.
As compared with the method of stacking ~ 4h in order from the bottom, assembling the frame pieces 4c to 4h can be performed at a lower position, actually on the ground, and can be performed safely and quickly without the need of assembling the scaffolding, and the working arm. Since the small lifting height of 17 is sufficient, the capacity of the reinforcing frame attachment device 14 can be reduced and the facility cost can be reduced accordingly.
【0022】こうして橋脚1に補強片4を組み付け後、
地上枠4(II)の所定位置に複数のコラムクランプ2
2を略等間隔に取り付け、該地上枠4(II)を束縛す
る。コラムクランプ22は図14のように、アングル材
を略L字形状に組み付けた一対のクランプ枠23,23
を有し、該枠23の両端にボルト挿通孔24,24が設
けられ、該孔24にボルト25を挿入し、これをナット
(図示略)で緊締して、クランプ枠23,23を連結可
能にしている。After assembling the reinforcing piece 4 to the pier 1 in this way,
A plurality of column clamps 2 at predetermined positions on the ground frame 4 (II)
2 are attached at substantially equal intervals, and the ground frame 4 (II) is bound. As shown in FIG. 14, the column clamp 22 includes a pair of clamp frames 23, 23 in which angle members are assembled in a substantially L shape.
With the bolt insertion holes 24, 24 provided at both ends of the frame 23, the bolts 25 are inserted into the holes 24 and tightened with nuts (not shown) to connect the clamp frames 23, 23. I have to.
【0023】クランプ枠23,23の下面には、枠片4
c〜4hに吸着可能な仮止め用のマグネット26が設け
られ、その内面はクランプ枠23の内面と同一面状の平
坦面に形成されている。図中、27はクランプ枠23の
内面に装着したゴムパッキンである。A frame piece 4 is provided on the lower surface of the clamp frames 23, 23.
A magnet 26 for temporary fixing that can be attracted to c to 4h is provided, and its inner surface is formed as a flat surface that is flush with the inner surface of the clamp frame 23. In the figure, 27 is a rubber packing mounted on the inner surface of the clamp frame 23.
【0024】コラムクランプ22の装着後、橋脚1と枠
片4a〜4hとの間の間隙10には、モルタルまたは合
成樹脂等の填充材28を供給可能な複数の注入ホース2
9が上下方向に配管され、その吐出口内に充填検出用セ
ンサ30が設けられている。After mounting the column clamp 22, a plurality of injection hoses 2 capable of supplying a filling material 28 such as mortar or synthetic resin into the gap 10 between the pier 1 and the frame pieces 4a to 4h.
9 is vertically piped, and a filling detection sensor 30 is provided in the discharge port.
【0025】上記センサ30は、この実施形態の場合、
3本の電極式レベルセンサが採用され、このうち一対の
充填検出用センサ30の検出位置を図17のように上下
に位置をずらせて配置し、これらのセンサ30,30が
填充材28に没入した際、その検出信号を後述する電動
ホースリールの駆動モータに入力し、該リールを駆動し
て注入ホース29を所定量捲回し、該ホース29を巻き
上げ可能にしている。In the case of this embodiment, the sensor 30 is
Three electrode type level sensors are adopted. Of these, a pair of filling detection sensors 30 are arranged such that their detection positions are vertically displaced as shown in FIG. 17, and these sensors 30, 30 are immersed in the filling material 28. At that time, the detection signal is input to a drive motor for an electric hose reel, which will be described later, and the reel is driven to wind the injection hose 29 by a predetermined amount so that the hose 29 can be wound.
【0026】注入ホース29は、最上位置の枠片4g,
4hの上端から外側に繰り出され、電動ホースリール3
1に捲回可能にされている。電動ホースリール30は、
橋脚1の近接位置に設置した支柱32に回転可能に支持
され、その側部に正逆転可能なモータ33が設けられて
いる。The injection hose 29 has a frame piece 4g at the uppermost position,
The electric hose reel 3 is fed from the upper end of 4h to the outside.
It can be wound up to 1. The electric hose reel 30
A fulcrum 32 that is rotatably supported by a column 32 installed near the pier 1 is provided with a motor 33 that can rotate forward and backward.
【0027】電動ホースリール31に捲回された注入ホ
ース29は、上記リール31の側方に繰り出されて注入
ポンプ34に接続され、該ポンプ34に填充材28を収
容したミキサー35が接続されている。図中、36は枠
片4g,4hの上端に設けたホース防護具で、注入ホー
ス29の円滑な移動を促すようにされ、37は制御盤で
ある。The injection hose 29 wound around the electric hose reel 31 is fed to the side of the reel 31 and connected to an injection pump 34, and the pump 35 is connected to a mixer 35 containing a filling material 28. There is. In the figure, 36 is a hose protector provided on the upper ends of the frame pieces 4g and 4h, which is designed to promote smooth movement of the injection hose 29, and 37 is a control panel.
【0028】填充材28を填充し、これが固化後はコラ
ムクランプ22を取り外し、また注入ホース29、電動
ホースリール31、注入ポンプ34、ミキサー35を撤
去し、補強枠4の表面を自動塗装機38等で塗装するよ
うにしている。After the filling material 28 is filled and solidified, the column clamp 22 is removed, the injection hose 29, the electric hose reel 31, the injection pump 34, and the mixer 35 are removed, and the surface of the reinforcing frame 4 is automatically coated by the coating machine 38. I try to paint it.
【0029】図18乃至図30は本発明の他の実施形態
を示し、前述の実施形態と対応する構成部分は同一の符
号を用いている。このうち、図18乃至図20は本発明
の第2の実施の形態を示し、地下枠4(I)の新たな敷
設法を提案している。すなわち、この実施形態は、枠片
4a,4bの上端部に複数のアタッチメント39を掛け
止め、該アタッチメント39に強力で大重量の振動発生
装置40を一体に装着し、該発生装置40の振動をアタ
ッチメント39を介して枠片4a,4bに伝え、枠片4
a,4bの打ち込みの高速化を図るようにしている。図
中、41は枠片4a,4bの内面に設けたホース取付リ
ングで、高圧ホース13を取付け可能にしており、該リ
ング41は前述した第1実施形態においても用いられて
いる。18 to 30 show another embodiment of the present invention, in which the components corresponding to those in the above-mentioned embodiment are designated by the same reference numerals. 18 to 20 show a second embodiment of the present invention, and propose a new method for laying the underground frame 4 (I). That is, in this embodiment, a plurality of attachments 39 are hooked on the upper ends of the frame pieces 4a and 4b, a powerful and heavy vibration generator 40 is integrally attached to the attachments 39, and the vibration of the generator 40 is prevented. It is transmitted to the frame pieces 4a and 4b through the attachment 39,
It is designed to speed up the implantation of a and 4b. In the figure, reference numeral 41 denotes a hose mounting ring provided on the inner surfaces of the frame pieces 4a and 4b, to which the high pressure hose 13 can be mounted. The ring 41 is also used in the first embodiment described above.
【0030】図21は本発明の第3の実施の形態を示
し、新たな補強枠取付装置42を提案している。すなわ
ち、この実施形態は、在来のフォークリフトを改造し、
その前部に油圧作動可能な作業アーム43を上下動かつ
屈伸可能に設け、該アーム43の先端に吸着装置18を
連結している。また、吸着装置18の両側に一対の篭形
の作業台44,44を設け、これらを吸着装置18と同
動可能に構成するとともに、作業台43に作業者や溶接
機、使用部材や工具を収容可能にし、吸着装置18と同
高位置で枠片4c〜4hの取付けを手際良く行なえるよ
うにしている。FIG. 21 shows a third embodiment of the present invention, and proposes a new reinforcing frame mounting device 42. That is, this embodiment is a modification of a conventional forklift truck,
A hydraulically actuable work arm 43 is provided at its front part so as to be vertically movable and bendable and extendable, and the suction device 18 is connected to the tip of the arm 43. In addition, a pair of basket-shaped work benches 44, 44 are provided on both sides of the suction device 18, and these are configured to be movable together with the suction device 18, and the work bench 43 is provided with a worker, a welding machine, members to be used and tools. The frame pieces 4c to 4h can be housed so that the frame pieces 4c to 4h can be mounted at the same height as the suction device 18 in an efficient manner.
【0031】この際、上記補強枠取付装置42を二基使
用し、これを橋脚1の両側に配置すれば、枠片4c〜4
hの位置決めを簡易かつ迅速に行なえ、また接合部5,
5の溶接後は、該枠片4c〜4hを所定高さ持ち上げ、
これをアンカーボルト等で仮止めすることで、一連の取
付け作業を手際良く行なえる。At this time, if two reinforcing frame mounting devices 42 are used and they are arranged on both sides of the pier 1, frame pieces 4c to 4c
Positioning of h can be performed easily and quickly, and the joint 5,
After welding 5, the frame pieces 4c to 4h are lifted to a predetermined height,
By temporarily fixing this with anchor bolts, etc., a series of installation work can be done efficiently.
【0032】図22は本発明の第4の実施の形態を示
し、新たなコラムクランプ22を提案している。すなわ
ち、この実施形態は一対のクランプ枠23,23の一端
をピン45を介して回動可能に連結し、この他端のボル
ト挿通孔24にボルト25を挿入し、これをナット(図
示略)で緊締して、前述の実施形態に比べボルト25の
緊締作業を1本分低減することで、コラムクランプ22
を簡便に取付け可能にしている。FIG. 22 shows a fourth embodiment of the present invention and proposes a new column clamp 22. That is, in this embodiment, one end of a pair of clamp frames 23, 23 is rotatably connected via a pin 45, a bolt 25 is inserted into a bolt insertion hole 24 at the other end, and this is a nut (not shown). The column clamp 22 is tightened with the column clamp 22 by reducing the tightening work of the bolt 25 by one as compared with the above-described embodiment.
Can be easily installed.
【0033】図23は本発明の第5の実施の形態を示
し、新たな補強枠取付装置45とその組付け法を提案し
ている。すなわち、この実施形態の補強枠取付装置45
は、地上を移動可能な本体46と、該本体46に装備し
た油圧発生装置(図示略)によって伸縮作動可能な昇降
リフト47と、該リフト47の上端に設けた作業台48
とを備え、該台48,48の両側はリンク49,49を
介して連結され、その同期作動を促し作動の安定性を図
っている。作業台48上には、前記油圧発生装置によっ
て作動可能な作業アーム17が設けられ、該アーム17
の先端に吸着装置18が連結されている。図中、50は
作業台48,48の片側周囲に立設した安全柵である。FIG. 23 shows a fifth embodiment of the present invention, and proposes a new reinforcing frame attaching device 45 and its assembling method. That is, the reinforcing frame attachment device 45 of this embodiment
Is a main body 46 that can move on the ground, a lifting lift 47 that can be expanded and contracted by a hydraulic pressure generator (not shown) mounted on the main body 46, and a work table 48 that is provided on the upper end of the lift 47.
Both sides of the pedestals 48, 48 are connected via links 49, 49 to promote their synchronous operation and stabilize the operation. A work arm 17 operable by the hydraulic pressure generator is provided on the work table 48.
The adsorption device 18 is connected to the tip of the. In the figure, reference numeral 50 is a safety fence standing around one side of the worktables 48, 48.
【0034】上記補強枠取付装置45によって補強枠4
を取付ける場合は、枠片4a,4bを地中に打ち込み
後、橋脚1の基部両側に補強枠取付装置45を二基移動
し、その作業台48,48をリンク49,49を介して
連結する。次に各補強枠取付装置45にクレーン等の重
機を介して、地上枠4(II)である枠片4c,4dを
作業台48,48に搬入し、これらの背面を吸着装置1
8,18で保持する。The reinforcing frame 4 is attached by the reinforcing frame attaching device 45.
In the case of mounting, after driving the frame pieces 4a and 4b into the ground, two reinforcing frame attachment devices 45 are moved to both sides of the base of the pier 1, and their work platforms 48 and 48 are connected via links 49 and 49. . Next, the frame pieces 4c and 4d, which are the above-ground frames 4 (II), are carried into the worktables 48 and 48 to the respective reinforcing frame attachment devices 45 via a heavy machine such as a crane, and the back surface of these is attached to the suction device 1
Hold at 8 and 18.
【0035】そして、昇降リフト47,47を作動し、
作業台48,48を枠片4a,4bの上端位置に移動し
たところで、双方の作業アーム17,17を橋脚1に向
けて移動し、吸着装置18,18に保持した枠片4c,
4dを橋脚1の両側から挟み込み、それらの端部を突き
合わせるとともに、それらの下端部を枠片4a,4bの
上端部に接合して、それらの接合部5を縦方向に溶接す
る。Then, the lifting lifts 47, 47 are operated,
When the work platforms 48, 48 are moved to the upper end positions of the frame pieces 4a, 4b, both work arms 17, 17 are moved toward the pier 1, and the frame pieces 4c held by the suction devices 18, 18 are provided.
4d is sandwiched from both sides of the pier 1, their ends are abutted, their lower ends are joined to the upper ends of the frame pieces 4a, 4b, and their joints 5 are welded in the vertical direction.
【0036】枠片4c,4dの取付け後、作業アーム1
7,17を橋脚1から後退させて、吸着装置18,18
を枠片4c,4dから離反させ、昇降リフト47,47
を作動して、作業台48,48を枠片4c,4dの上端
位置に移動したところで、クレーン等の重機を介し、枠
片4e,4fを作業台48,48に搬入し、これらの背
面を吸着装置18,18で保持する。After mounting the frame pieces 4c and 4d, the working arm 1
7 and 17 are retracted from the pier 1, and adsorption devices 18 and 18
Is lifted from the frame pieces 4c and 4d, and lifts 47 and 47
Is operated to move the worktables 48, 48 to the upper end positions of the frame pieces 4c, 4d, the frame pieces 4e, 4f are carried into the worktables 48, 48 via a heavy machine such as a crane, and the rear surfaces thereof are It is held by the adsorption devices 18, 18.
【0037】この後、双方の作業アーム17,17を橋
脚1に向けて移動し、吸着装置18,18に保持した枠
片4e,4fを橋脚1の両側から挟み込み、それらの端
部を突き合わせるとともに、それらの下端部を枠片4
c,4dの上端部に接合し、それらの接合部5を縦方向
に溶接する。以下、同様な作業を行なって、枠片4e,
4f上に枠片4g,4hを重合し組み付ける。After that, both work arms 17, 17 are moved toward the bridge pier 1, the frame pieces 4e, 4f held by the suction devices 18, 18 are sandwiched from both sides of the bridge pier 1, and their ends are butted. At the same time, attach the lower end of them to the frame piece 4
They are joined to the upper ends of c and 4d, and their joints 5 are welded in the vertical direction. Thereafter, the same work is performed to make the frame pieces 4e,
The frame pieces 4g and 4h are superposed and assembled on 4f.
【0038】このように上記取付け法は、地上枠4(I
I)を下から順に施工し、かつその際各枠片4c〜4h
を静止させて作業するから、枠片の溶接後、この移動を
要する前述の実施形態に比べて、補強枠4の取付けを円
滑かつ容易に行なえ、また上記移動に伴うトラブルの発
生を未然に防止し得る。しかも、上記取付けに際して
は、二基の補強枠取付装置45を駆使しているから、上
記作業を迅速に行なえるとともに、作業台48,48を
連結して同期作動させているから、作業台48,48の
安定性が向上し、作業の安全性が確保される。As described above, the above-mentioned mounting method is applied to the ground frame 4 (I
I) is installed in order from the bottom, and at that time, each frame piece 4c to 4h
Since the work is performed while the frame is stationary, the reinforcement frame 4 can be mounted smoothly and easily compared with the above-described embodiment that requires this movement after welding the frame pieces, and the occurrence of troubles due to the movement can be prevented. You can Moreover, since the two reinforcing frame mounting devices 45 are used for the above-mentioned mounting, the above-described work can be performed quickly, and the worktables 48, 48 are connected and operated synchronously. , 48 is improved in stability and work safety is secured.
【0039】図24乃至図27は本発明の第6の実施の
形態を示し、新たな補強枠4の取付け法を提案してい
る。すなわち、この実施形態の補強枠取付法は、アング
ル材等のL字形断面の縦長の固定枠51を要し、該枠5
1にボルト52を挿入可能な通孔53を形成するととも
に、上記ボルト52の頭部厚よりも肉厚のアンカーブロ
ック54を固定し、該ブロック54のネジ孔55にボル
ト56をねじ込み可能にしている。図中、57,58は
ワッシャー、59は橋脚1の所定位置に設けたネジ孔、
60は補強枠4に設けたボルト挿通孔である。24 to 27 show a sixth embodiment of the present invention, and propose a new mounting method for the reinforcing frame 4. That is, the reinforcing frame mounting method of this embodiment requires a vertically long fixed frame 51 having an L-shaped cross section such as an angle member.
1 is formed with a through hole 53 into which the bolt 52 can be inserted, an anchor block 54 having a wall thickness larger than the head thickness of the bolt 52 is fixed, and a bolt 56 can be screwed into a screw hole 55 of the block 54. There is. In the figure, 57 and 58 are washers, 59 is a screw hole provided at a predetermined position of the pier 1,
Reference numeral 60 denotes a bolt insertion hole provided in the reinforcing frame 4.
【0040】上記固定枠51を用いて地上の補強枠4を
取付ける場合は、橋脚1の四隅の所定位置にネジ孔59
を形成し、該四隅に固定枠51を位置付け、その通孔5
3にワッシャ57を介してボルト52を挿入し、これを
ネジ孔59にねじ込んで固定枠51を取付ける。次に前
記補強枠取付装置42を操作し、その吸着装置18に単
一の枠片4c〜4hを保持し、これを橋脚1の所定の取
付け位置に位置付け、ボルト56をワッシャ58を介し
てボルト挿通孔60に挿入し、これをネジ孔55にねじ
込んで固定する。When the above-mentioned fixed frame 51 is used to mount the reinforcing frame 4 on the ground, screw holes 59 are provided at predetermined positions at the four corners of the pier 1.
And the fixing frames 51 are positioned at the four corners, and the through holes 5 are formed.
A bolt 52 is inserted into 3 through a washer 57, and the bolt 52 is screwed into a screw hole 59 to attach the fixing frame 51. Next, the reinforcing frame mounting device 42 is operated to hold the single frame pieces 4c to 4h on the suction device 18, and the single frame pieces 4c to 4h are positioned at a predetermined mounting position of the pier 1, and the bolt 56 is bolted via the washer 58. It is inserted into the insertion hole 60 and screwed into the screw hole 55 to be fixed.
【0041】橋脚1の基部に一対の枠片4c,4dを取
付け後、吸着装置18に枠片4eを保持し、かつ該装置
18を枠片4cの上方に持ち上げて、枠片4cを橋脚1
の所定の取付け位置に位置付け、前述と同様にボルト5
6をネジ孔55にねじ込んで固定する。この際、ボルト
52,56のねじ込み作業は篭形の作業台44で行なわ
れ、該作業台44は吸着装置18と一体に上下動するか
ら、枠片の取付け位置に応じて作業台44の高さが自動
的に設定され、上記作業を容易かつ能率良く行なえる。
なお、このような補強枠4の取付け作業は、二基の補強
枠取付装置42を橋脚1の両側に配して行なえば、上記
作業を一層迅速に行なえる。After the pair of frame pieces 4c and 4d are attached to the base of the pier 1, the frame piece 4e is held by the adsorption device 18, and the device 18 is lifted above the frame piece 4c to move the frame piece 4c to the pier 1.
Position it in the specified mounting position of the
6 is screwed into the screw hole 55 and fixed. At this time, the work of screwing the bolts 52 and 56 is performed on the basket-shaped work table 44, and since the work table 44 moves up and down together with the suction device 18, the height of the work table 44 increases depending on the mounting position of the frame piece. Is automatically set, and the above work can be performed easily and efficiently.
If the two reinforcing frame attaching devices 42 are arranged on both sides of the pier 1, the above attaching work of the reinforcing frame 4 can be performed more quickly.
【0042】こうして枠片4c〜4hを取付け終える
と、固定枠51と枠片4c〜4hとの間には、略アンカ
ーブロック54の厚さ分の間隙10が形成され、これが
前述のようなスペーサ9の役割を果たすから、該スペー
サ9の配置を省略できる。そして、枠片4c〜4hの取
付け後、各接合部5,6を溶接する。When the frame pieces 4c to 4h have been attached in this manner, a gap 10 is formed between the fixed frame 51 and the frame pieces 4c to 4h and is approximately the thickness of the anchor block 54, which is the spacer as described above. Since it plays the role of 9, the arrangement of the spacer 9 can be omitted. Then, after the frame pieces 4c to 4h are attached, the joint portions 5 and 6 are welded.
【0043】図28乃至図30は本発明の第7の実施の
形態を示し、新たな補強枠4の取付け法を提案してい
る。すなわち、この実施形態の補強枠取付法は、各枠片
4a〜4hを鉄製、つまり鉄および鉄鋼、または堅牢な
合成樹脂、例えばF.R.Pで構成し、それらの管軸方
向に沿う接合部5,5にビード状のリブ61,62を外
側に突設し、この何れか一方のリブ、この実施形態では
リブ61に複数の係合凹部63を形成し、他方のリブ6
2に上記凹部63に係合可能な係合凸部64を形成して
いる。28 to 30 show a seventh embodiment of the present invention, and propose a new mounting method for the reinforcing frame 4. That is, according to the reinforcing frame mounting method of this embodiment, each of the frame pieces 4a to 4h is made of iron, that is, iron and steel, or a robust synthetic resin such as F.I. R. P, and bead-shaped ribs 61 and 62 are provided on the joints 5 and 5 along the tube axial direction so as to project outward, and any one of these ribs, in this embodiment, a plurality of engagements with the rib 61. The recess 63 is formed and the other rib 6 is formed.
2 is formed with an engaging convex portion 64 that can be engaged with the concave portion 63.
【0044】係合凹部63と係合凸部64とは、この実
施形態では平面が台形形状に形成され、それらの係合後
は接合部5からの離反を阻止して抜け止めされている。
このうち、係合凹部63の底面にはネジ孔65が形成さ
れ、また係合凸部64には、ボルト66を挿入可能な通
孔67が形成されていて、前記ボルト66がネジ孔65
にねじ込まれて両者が連結されている。In this embodiment, the engaging concave portion 63 and the engaging convex portion 64 are formed in a trapezoidal shape in plan view, and are prevented from coming off from the joint portion 5 after they are engaged with each other.
Of these, a screw hole 65 is formed in the bottom surface of the engaging recess 63, and a through hole 67 into which the bolt 66 can be inserted is formed in the engaging protrusion 64.
Both are connected by being screwed into.
【0045】このような枠片4a〜4hを組み立てる場
合は、各一対の枠片4a〜4hを用意し、それらの端部
を向き合わせて突き合わせ、各係合凸部67を係合凹部
63の開口縁に位置付け、これを木ハンマ等で叩いて係
合凹部63に押し込み、この後ボルト66を通孔67に
挿入し、ネジ孔65にねじ込めばよい。When assembling such frame pieces 4a to 4h, a pair of frame pieces 4a to 4h are prepared, their ends are abutted against each other, and the respective engagement protrusions 67 are formed in the engagement recesses 63. It may be positioned at the opening edge, hit by a wood hammer or the like to be pushed into the engaging recess 63, and then the bolt 66 may be inserted into the through hole 67 and screwed into the screw hole 65.
【0046】このように上記組み立て作業は、係合凸部
67を係合凹部63に係合し、これらをネジ止めする簡
単な作業であるから、これを簡便に行なうことができ、
前述のような溶接法に比べて、種々の設備を要すること
なく施工できる。しかも、合成樹脂製の枠片4a〜4h
の場合は、軽量で持ち運びや取り扱いが至便になり、ま
た比較的容易に変形し得るから組み付けの融通性を得ら
れる等の利点がある。As described above, the above assembling work is a simple work for engaging the engaging convex portion 67 with the engaging concave portion 63 and screwing them together, and therefore, this can be carried out easily.
Compared to the above-mentioned welding method, it can be installed without requiring various equipment. Moreover, frame pieces 4a to 4h made of synthetic resin
In this case, there are advantages that it is lightweight and convenient to carry and handle, and that it can be deformed relatively easily, so that flexibility in assembly can be obtained.
【0047】なお、各枠片4a〜4hの他の接続法とし
ては、ボルト66の緊締に加えて、接合縁をホゾ継手等
のように互いに係合可能な各種の継手に成形したり、合
成樹脂製の枠片4a〜4hの場合には、溶着や結束具に
よる方法が採られる。また、上記リブ61,62を省略
し、枠片4a〜4hの接合部を単にビスやボルトによる
ネジ連結や、リベットによる鋲結、釘結、針材による連
結法で機械的に連結することも可能である。As another method of connecting the frame pieces 4a to 4h, in addition to tightening the bolts 66, the joint edges may be formed into various joints such as a Hoso joint that can be engaged with each other, or they may be combined. In the case of the resin frame pieces 4a to 4h, a method using welding or a binding tool is adopted. Alternatively, the ribs 61 and 62 may be omitted, and the joint portions of the frame pieces 4a to 4h may be mechanically coupled simply by screw connection with screws or bolts, rivet rivet connection, nail connection, or needle material connection. It is possible.
【0048】こうして組み付けた枠片4a〜4hは、係
合凸部67と係合凹部63との係合力によって、それら
が抜け止めされ、更にこれらがボルト66で強固に固定
されているから、枠片の接合4a〜4hを強固に維持し
得る。また、仮に対をなす一方の枠片が損傷しても、こ
れを取り外して交換できるから、前述の溶接法に比べて
地震後の復旧作業を合理的かつ迅速に行なえる。The frame pieces 4a to 4h assembled in this manner are prevented from coming off by the engaging force of the engaging convex portion 67 and the engaging concave portion 63, and are further firmly fixed by the bolts 66. The joining of the pieces 4a to 4h can be firmly maintained. Further, even if one of the pair of frame pieces is damaged, it can be removed and replaced, so that recovery work after an earthquake can be performed reasonably and quickly as compared with the welding method described above.
【0049】なお、上述の実施形態は何れも枠片4c〜
4hをコ字形断面に成形しているが、これは橋脚1が矩
形断面によるためで、要は橋脚1の断面形状の半割形状
に成形すればよい。また、上下に隣接する各補強枠4の
接合部6は、非連結状態にされているが、より十分な剛
性を得る場合は、それらを溶接等で連結してもよい。In each of the above-mentioned embodiments, the frame pieces 4c to 4c.
Although 4h is formed in a U-shaped cross section, this is because the bridge pier 1 has a rectangular cross section. In short, it may be formed in a half shape of the cross sectional shape of the pier 1. Further, the joints 6 of the reinforcing frames 4 adjacent to each other in the vertical direction are not connected, but if more sufficient rigidity is to be obtained, they may be connected by welding or the like.
【0050】このように構成した本発明の使用および作
動を図1乃至図17に示す第1の実施の形態に基いて説
明する。先ず、補強すべき橋脚1の地中および地上高お
よび断面形状に基いて、地下枠4(I)と地上枠4(I
I)の形状寸法を定め、各枠片4a〜4hを製作する。
実施形態の場合、橋脚1は地中部1aおよび地上部1b
に亙って同一の方形断面であるから、地下枠4(I)と
地上枠4(II)の断面形状は、方形の半割形状である
コ字形断面に形成する。The use and operation of the present invention thus constructed will be described based on the first embodiment shown in FIGS. 1 to 17. First, based on the underground and above-ground height and the cross-sectional shape of the pier 1 to be reinforced, the underground frame 4 (I) and the above-ground frame 4 (I
The shape and dimension of I) are determined, and the frame pieces 4a to 4h are manufactured.
In the case of the embodiment, the pier 1 includes the underground portion 1a and the above-ground portion 1b.
Since they have the same rectangular cross section, the underground frame 4 (I) and the above-ground frame 4 (II) are formed to have a square U-shaped cross section.
【0051】地下枠4(I)は、地中梁3より地上に突
出する単一の枠体、つまり一対の枠片4a,4bで構成
し、その長さは、地中部1aの長さに地上突出高hを加
えた長さとし、この地上突出高hは、地上枠4(II)
の施工を能率良く行なえる所望高さ、実施形態では50
cmに設定している。The underground frame 4 (I) is composed of a single frame body projecting above the ground beam 3 above the ground, that is, a pair of frame pieces 4a and 4b, the length of which is the same as that of the underground portion 1a. The above-ground protrusion height h is set to the length including the above-ground protrusion height h.
The desired height that can efficiently perform the construction of the
It is set to cm.
【0052】地上枠4(II)は3つの枠体で構成し、
これは地下枠4(I)と同長の二つの枠体、つまり二組
の枠片4e〜4hと、地下枠4(I)より若干短小の枠
体、つまり一組の枠片4c,4dとで構成している。こ
れらの枠片4a〜4hは鋼板を前記長さに切断し、これ
をコ字形断面にプレス成形して製作される。The above-ground frame 4 (II) is composed of three frames,
This is two frame bodies having the same length as the underground frame 4 (I), that is, two sets of frame pieces 4e to 4h, and a frame body slightly shorter than the underground frame 4 (I), that is, one set of frame pieces 4c, 4d. It consists of and. These frame pieces 4a to 4h are manufactured by cutting a steel plate into the length described above and press-molding this into a U-shaped cross section.
【0053】成形後、最上位置の枠片4g,4hを除く
各枠片4a〜4fのうち、対をなす一方の枠片4a,4
c,4dの両端縁の内外面に、一対の継手7,7を図1
2,13のように取付けるとともに、各枠片4a〜4f
の上端部に、一対の継手8,8を図14,15のように
取付ける。更に、各枠片4a〜4hの内面に複数のスペ
ーサ9を図12,13のように取付ける。After molding, of the frame pieces 4a to 4f excluding the topmost frame pieces 4g and 4h, one frame piece 4a, 4 forming a pair.
A pair of joints 7 and 7 are provided on the inner and outer surfaces of both edges of c and 4d as shown in FIG.
2 and 13 as well as each frame piece 4a-4f
A pair of joints 8 and 8 are attached to the upper end of the as shown in FIGS. Further, a plurality of spacers 9 are attached to the inner surfaces of the frame pieces 4a to 4h as shown in FIGS.
【0054】こうして製作した枠片4a〜4fを橋脚1
に装着する場合は、その地中部1aと地上部1bに分け
て装着する。先ず、地中部1aの装着に際しては、橋脚
1が表出する地上部周辺に架台11を設置し、該台11
上に地下枠4(I)を構成する一対の枠片4a,4b
を、クレーン等の重機を用いて立位状態で収容し、かつ
これを橋脚1の両側から挟み込んで、それらの端部を突
き合わせる。そして、上記状態を保持しながら、その接
合部5,5を溶接し、枠片4a,4bを筒状に連結す
る。The frame pieces 4a to 4f thus manufactured are attached to the pier 1
When installing on the ground, the ground part 1a and the above-ground part 1b are separately mounted. First, when mounting the underground portion 1a, the pedestal 11 is installed around the above-ground portion where the pier 1 is exposed.
A pair of frame pieces 4a, 4b that constitute the underground frame 4 (I) on top
Are stored in a standing position using a heavy machine such as a crane, and they are sandwiched from both sides of the pier 1, and their ends are butted. Then, while maintaining the above state, the joint portions 5 and 5 are welded to connect the frame pieces 4a and 4b in a tubular shape.
【0055】上記連結後、架台11を撤去し、枠片4
a,4bを地上に直接立設する。この場合、枠片4a,
4bを移動しても、それらの内面に取付けたスペーサ9
の脚片9aが橋脚1と接触し、その弾性を介して枠片4
a,4bと橋脚1との間に一様な間隙10を形成する。
上記立設後、枠片4a,4bの上端部に複数の振動発生
装置12を設置し、また枠片4a,4bの内面に、図1
9のような複数の取付リング41を介して、高圧水源に
連通する高圧ホース13を上下方向に配管し、その吐出
口に設けた噴射ノズル(図示略)を地面に向けて配置す
る。この状況は図10のようである。After the above connection, the frame 11 is removed and the frame piece 4 is removed.
Set a and 4b directly on the ground. In this case, the frame piece 4a,
Even if 4b is moved, spacers 9 attached to their inner surfaces
The leg piece 9a of the frame comes into contact with the pier 1, and the elasticity of the leg piece 9a causes the frame piece 4 to
A uniform gap 10 is formed between a and 4b and the pier 1.
After the standing, a plurality of vibration generators 12 are installed on the upper ends of the frame pieces 4a and 4b, and the inner surfaces of the frame pieces 4a and 4b are provided with the vibration generators 12 shown in FIG.
A high-pressure hose 13 communicating with a high-pressure water source is vertically piped through a plurality of mounting rings 41 such as No. 9, and an injection nozzle (not shown) provided at its discharge port is arranged facing the ground. This situation is as shown in FIG.
【0056】このような状況の下で振動発生装置12を
駆動し、同時に高圧水を高圧ホース13に供給すると、
高圧水が地面に衝突し、その水流が枠片4a,4b内を
擾乱して地面の軟化が促進されるとともに、振動発生装
置12の低周波振動によって、枠片4a,4bの沈下が
増進され、これが次第に地中に打ち込まれ、その下端が
地中梁3に到達したところで、上記打ち込みが終了す
る。Under this condition, when the vibration generator 12 is driven and high pressure water is simultaneously supplied to the high pressure hose 13,
The high-pressure water collides with the ground, and the water flow disturbs the inside of the frame pieces 4a and 4b to promote the softening of the ground, and the low frequency vibration of the vibration generator 12 enhances the subsidence of the frame pieces 4a and 4b. This is gradually driven into the ground, and when the lower end reaches the underground beam 3, the driving is finished.
【0057】このように上記打ち込みに際しては、掘削
機械による方法に比べて小型かつ低廉な設備で足り、し
かも土砂の掘削と枠片4a,4bの敷設を同時に行なえ
るから、上記作業を迅速に行なえるとともに、その作業
範囲も枠片4a,4bと橋脚1で区画された狭小な範囲
に限定されているから、作業範囲が縮小され、掘削量も
少量に抑制される。As described above, in the above-mentioned driving, a small and inexpensive equipment is sufficient as compared with the method using the excavating machine, and moreover, the excavation of the earth and sand and the laying of the frame pieces 4a and 4b can be carried out at the same time, so that the above-mentioned work can be carried out quickly. In addition, the working range is limited to a narrow range defined by the frame pieces 4a and 4b and the pier 1, so that the working range is reduced and the excavation amount is suppressed to a small amount.
【0058】上記枠片4a,4bの打ち込み後、振動発
生装置12を撤去し、また高圧ホース13を引き抜き、
地上枠4(II)の装着に移行する。この装着に際して
は、橋脚1の基部に枠片4a,4bの地上突出高hと略
同高の架台11を設置し、該台11に橋脚1の最上位置
に配置する一対の枠片4g,4hを、クレーン(図示
略)等の重機を用いて立位状態で収容し、かつこれらを
橋脚1の両側から挟み込み、それらの端部を突き合わせ
る。その際、枠片4gに設けた継手5,5の間に枠片4
hの端部を差し込み、それらの左右位置を位置決めし、
また枠片4a,4bの上端部に設けた継手8,8の間に
枠片4g,4hの下端部を差し込み、それらの上下位置
を位置決めする。この後、それらの接合部5,5を溶接
機21を介して縦方向に溶接し、これらを筒形に連結す
る。この状況は図3のようである。After driving the frame pieces 4a and 4b, the vibration generator 12 is removed and the high pressure hose 13 is pulled out.
Transfer to installation of the ground frame 4 (II). At the time of this installation, a pedestal 11 is installed at the base of the pier 1 at a height substantially the same as the above-ground projecting height h of the frame pieces 4a, 4b, and a pair of frame pieces 4g, 4h arranged on the pedestal 11 at the uppermost position of the pier 1 Are accommodated in a standing position using a heavy machine such as a crane (not shown), and they are sandwiched from both sides of the pier 1 and their ends are butted. At that time, the frame piece 4 is placed between the joints 5 and 5 provided on the frame piece 4g.
Insert the ends of h and position them left and right,
Further, the lower end portions of the frame pieces 4g and 4h are inserted between the joints 8 and 8 provided on the upper end portions of the frame pieces 4a and 4b, and their upper and lower positions are positioned. After that, the joints 5 and 5 are welded to each other in the longitudinal direction via the welding machine 21 to connect them in a tubular shape. This situation is as shown in FIG.
【0059】枠片4g,4hを連結後、架台11と溶接
機21とを撤去し、代わりに補強枠取付装置14を移動
して、その吸着装置18を何れか一方の枠片4g,4h
に装着し、これを保持したところで、図4のように作業
アーム17を垂直に上昇し、枠片4g,4hを所定高
さ、つまり次期枠片4e,4fの搬入に必要な高さ分、
持ち上げ、枠片4g,4hの当該位置をアンカーボルト
等適宜手段で仮止めするAfter connecting the frame pieces 4g and 4h, the gantry 11 and the welding machine 21 are removed, and instead the reinforcing frame attachment device 14 is moved so that the suction device 18 is attached to one of the frame pieces 4g and 4h.
The work arm 17 is vertically lifted as shown in FIG. 4, and the frame pieces 4g and 4h are moved to a predetermined height, that is, the height required to carry in the next frame pieces 4e and 4f.
Lifting and temporarily fixing the positions of the frame pieces 4g and 4h by an appropriate means such as anchor bolts.
【0060】この後、補強枠取付装置14を退去し、代
わりに別の枠片4e,4fをクレーン(図示略)等の重
機を用いて、橋脚1の両側の架台11,11に立位状態
で収容し、これらを橋脚1の両側から挟み込み、それら
の端部を突き合わせる。その際、枠片4eに設けた継手
5,5の間に枠片4fの端部を差し込み、それらの左右
位置を位置決めし、また枠片4a,4bの上端部に設け
た継手8,8の間に枠片4e,4fの下端部を差し込
み、それらの上下位置を位置決めする。この後、それら
の接合部5,5を溶接機21を介して縦方向に溶接し、
これらを筒形に連結する。この状況は図5のようであ
る。After that, the reinforcing frame mounting device 14 is withdrawn, and instead, the other frame pieces 4e, 4f are placed on the pedestals 11, 11 on both sides of the pier 1 using a heavy machine such as a crane (not shown). And squeeze them from both sides of the pier 1 and butt their ends together. At that time, the end portions of the frame piece 4f are inserted between the joints 5 and 5 provided on the frame piece 4e to position the left and right positions thereof, and the joints 8 and 8 provided on the upper end portions of the frame pieces 4a and 4b. The lower end portions of the frame pieces 4e and 4f are inserted between them to position them vertically. After that, these joints 5 and 5 are welded longitudinally via the welding machine 21,
These are connected in a tubular shape. This situation is as shown in FIG.
【0061】枠片4e,4fを連結後、架台11と溶接
機21とを撤去し、代わりに補強枠取付装置14を移動
して、吸着装置18を何れか一方の枠片4g,4hに装
着し、これを保持したところで、前記アンカーボルトを
取り外し、作業アーム17を若干下降させて、枠片4
g,4hの下端部を枠片4e,4fの上端部に設けた継
手8,8に差し込み、それらの上下位置を位置決めす
る。After connecting the frame pieces 4e and 4f, the gantry 11 and the welding machine 21 are removed, and instead the reinforcing frame attachment device 14 is moved to attach the suction device 18 to one of the frame pieces 4g and 4h. Then, when this is held, the anchor bolt is removed, the working arm 17 is slightly lowered, and the frame piece 4
The lower ends of g and 4h are inserted into the joints 8 and 8 provided on the upper ends of the frame pieces 4e and 4f, and their vertical positions are positioned.
【0062】枠片4e〜4hの連結後、作業アーム17
を下降させて、吸着装置18を何れか一方の枠片4e,
4fに装着し、これを保持したところで、図5のように
作業アーム17を垂直に上昇し、枠片4e〜4hを一体
に所定高さ、つまり次期枠片4c,4dの搬入に必要な
高さ分、持ち上げ、当該位置をアンカーボルト等適宜手
段で仮止めする。After connecting the frame pieces 4e to 4h, the working arm 17
To lower the suction device 18 to one of the frame pieces 4e,
When mounted on 4f and held, the work arm 17 is vertically lifted as shown in FIG. 5, and the frame pieces 4e to 4h are integrally united to a predetermined height, that is, the height required to carry in the next frame pieces 4c and 4d. Then, lift up and temporarily fix the position with an appropriate means such as an anchor bolt.
【0063】仮止め後、補強枠取付装置14を退去さ
せ、代わりに別の枠片4c,4dをクレーン(図示略)
等の重機を用いて、橋脚1の両側の架台11,11に立
位状態で収容し、これらを橋脚1の両側から挟み込み、
それらの端部を突き合わせる。その際、枠片4cに設け
た継手5,5の間に枠片4dの端部を差し込み、それら
の左右位置を位置決めし、また枠片4a,4bの上端部
に設けた継手8,8の間に枠片4c,4dの下端部を差
し込み、それらの上下位置を位置決めする。この後、そ
れらの接合部5,5を溶接機21を介して縦方向に溶接
し、これらを筒形に連結する。この状況は図5のようで
ある。After the temporary fixing, the reinforcing frame mounting device 14 is withdrawn, and the other frame pieces 4c and 4d are replaced by a crane (not shown).
Using a heavy machine such as the above, it is housed in the pedestals 11 and 11 on both sides of the pier 1 in a standing position, and these are sandwiched from both sides of the pier 1,
Butt their ends. At that time, the ends of the frame piece 4d are inserted between the joints 5 and 5 provided on the frame piece 4c to position the left and right positions thereof, and the joints 8 and 8 provided on the upper end portions of the frame pieces 4a and 4b. The lower end portions of the frame pieces 4c and 4d are inserted between them to position their upper and lower positions. After that, the joints 5 and 5 are welded to each other in the longitudinal direction via the welding machine 21 to connect them in a tubular shape. This situation is as shown in FIG.
【0064】枠片4c,4dの下端部は、枠片4a,4
bの上端部に設けた継手8,8に差し込まれ、この接合
部6を横方向に溶接して、枠片4a〜4dを連結する。
この後、補強枠取付装置14を移動して、吸着装置18
を何れか一方の枠片4e,4fに装着し、これを保持し
たところで、前記アンカーボルトを取り外し、作業アー
ム17を若干下降させて、該枠片4e,4fの下端部を
枠片4c,4dの上端部に設けた継手8,8に差し込め
ば、枠片4a〜4hの一連の組み付け作業が終了する。
この状況は図6のようで、この後、架台11と溶接機2
1とを撤去し、補強枠取付装置14を移動する。The lower ends of the frame pieces 4c and 4d are attached to the frame pieces 4a and 4d.
It is inserted into joints 8 provided at the upper end of b, and the joint 6 is welded in the lateral direction to connect the frame pieces 4a to 4d.
After that, the reinforcing frame mounting device 14 is moved to move the suction device 18
Is attached to one of the frame pieces 4e and 4f, and when this is held, the anchor bolt is removed, the working arm 17 is slightly lowered, and the lower ends of the frame pieces 4e and 4f are attached to the frame pieces 4c and 4d. When inserted into the joints 8, 8 provided at the upper end of the frame, a series of assembling work of the frame pieces 4a to 4h is completed.
This situation is as shown in Fig. 6. After that, the gantry 11 and the welding machine 2
1 and are removed, and the reinforcing frame attachment device 14 is moved.
【0065】このように地上枠4(II)の組み付け
は、一対の枠片4c〜4hを一定の地上高で橋脚1に装
着し、これを順次上方へ移動させているから、枠片4c
〜4hを下方から順に積み重ねて組み立てる方法に比べ
て、枠片4c〜4hの組み立てを低位置、実際上は地上
で作業でき、足場の組み立てを要することなく、安全か
つ迅速に行なえ、しかも作業アーム17の上下方向の移
動範囲は、枠片4c〜4hの1個分の高さで足りるか
ら、低揚程で足り、それだけ補強枠取付装置14の低能
力化を図れ、設備費の低減を図れる。また、上記の組み
付け作業は、上下に連接する枠片4a〜4hの溶接ない
し連結を要しないから、その分、工事を容易かつ速やか
に行なえ、工費の低減を図れる。As described above, in the assembling of the ground frame 4 (II), the pair of frame pieces 4c to 4h are mounted on the pier 1 at a constant ground height and are sequentially moved upward.
As compared with the method of stacking up to 4h in order from the bottom, assembling the frame pieces 4c to 4h can be performed at a lower position, practically on the ground, can be performed safely and quickly without assembling scaffolding, and the working arm Since the vertical movement range of 17 is sufficient for the height of one of the frame pieces 4c to 4h, a low lift is sufficient, and the capacity of the reinforcing frame attachment device 14 can be reduced accordingly, and the equipment cost can be reduced. Further, since the above-described assembling work does not require welding or connection of the frame pieces 4a to 4h that are vertically connected to each other, the work can be performed easily and promptly and the construction cost can be reduced accordingly.
【0066】こうして、橋脚1の地中部1aと地上部1
bとの全域に亙って、補強枠4を装着後、地上部1bの
所定位置に複数のコラムクランプ22を取付ける。コラ
ムクランプ22の取付けに際しては、一対のクランプ枠
23,23をマグネット26を介して、補強枠4の所定
位置に仮止めし、それらのボルト挿通孔24,24を位
置合わして、これらにボルト25を挿入し、これをナッ
ト(図示略)で緊締して固定する。このように、マグネ
ット26を介してクランプ枠23を仮止めできるから、
該枠23の位置決めと固定作業を簡便に行なえるととも
に、ゴムパッキン23によって、これが接触する橋脚1
周面の傷の発生を未然に防止し得る。Thus, the underground portion 1a and the above-ground portion 1 of the pier 1 are
After mounting the reinforcing frame 4 over the entire area of b, a plurality of column clamps 22 are mounted at predetermined positions on the ground portion 1b. When the column clamp 22 is attached, the pair of clamp frames 23, 23 is temporarily fixed to a predetermined position of the reinforcing frame 4 via the magnet 26, the bolt insertion holes 24, 24 are aligned with each other, and the bolt 25 is attached to them. Insert it and tighten it with a nut (not shown) to fix it. In this way, since the clamp frame 23 can be temporarily fixed via the magnet 26,
The frame 23 can be easily positioned and fixed, and the rubber packing 23 makes contact with the pier 1
It is possible to prevent the occurrence of scratches on the peripheral surface.
【0067】コラムクランプ22の取付け後、橋脚1の
近接位置にミキサー35と注入ポンプ34、電動ホース
リール31とその支柱32等を設置し、そのモータ33
を逆転する。このようにすると、上記リール31に捲回
した注入ホース29が巻き出され、これが補強枠4の上
端から、橋脚1と補強枠4との間の間隙10に送り出さ
れて下方へ移動し、その吐出口が間隙10の最下位置、
つまり地中梁3の直上に到達したところで、上記モータ
33を停止する。After the column clamp 22 is attached, the mixer 35, the injection pump 34, the electric hose reel 31 and its support 32, etc. are installed near the bridge pier 1, and the motor 33 thereof is installed.
Reverse. In this way, the injection hose 29 wound on the reel 31 is unwound, and this is sent from the upper end of the reinforcing frame 4 to the gap 10 between the pier 1 and the reinforcing frame 4 and moves downward, The discharge port is at the lowest position of the gap 10,
That is, the motor 33 is stopped when it reaches the position directly above the underground beam 3.
【0068】このような状況の下でモータ33の電源投
入状態を保持し、注入ポンプ34を駆動すると、ミキサ
ー35内に収容した填充材28、この実施形態ではモル
タルが注入ホース29に送り出され、これが上記ホース
29内を移動して吐出口から吐き出され、間隙10を下
方から充填していく。填充材28の充填に伴って、その
充填レベルが次第に上昇し、これが注入ホース29の吐
出口に流入して、当該部に設置した一対の充填検出用セ
ンサ30,30が填充材28に没入すると、該センサ3
0,30が填充材28の充填レベルを検出し、その信号
をモータ33に出力する。Under this condition, when the motor 33 is kept powered on and the injection pump 34 is driven, the filler 28 contained in the mixer 35, in this embodiment, mortar is sent to the injection hose 29. This moves in the hose 29 and is discharged from the discharge port to fill the gap 10 from below. As the filling material 28 is filled, the filling level thereof gradually rises and flows into the discharge port of the injection hose 29, and when the pair of filling detection sensors 30 and 30 installed in the relevant portion is immersed in the filling material 28. , The sensor 3
0 and 30 detect the filling level of the filling material 28 and output the signal to the motor 33.
【0069】このため、モータ33が正転し、注入ホー
ス29が電動ホースリール31に捲回されて間隙10内
を上動し、その吐出口が填充材28から引き抜かれる。
上記モータ33は上記信号によって一定時間駆動し、注
入ホース29が填充材28の上方に一定距離移動したと
ころで、停止する。したがって、この後充填レベルが上
昇し、填充材28が再度注入ホース29の吐出口に流入
して、充填検出用センサ30,30が填充材28に没入
すると、該センサ30,30が填充材28の充填レベル
を検出して、その信号をモータ33に出力し、該モータ
33が正転駆動して注入ホース29を所定距離引き上げ
る。Therefore, the motor 33 rotates in the normal direction, the injection hose 29 is wound around the electric hose reel 31 and moves upward in the gap 10, and the discharge port thereof is pulled out from the filling material 28.
The motor 33 is driven by the signal for a certain period of time, and is stopped when the injection hose 29 has moved a certain distance above the filling material 28. Therefore, after this, the filling level rises, the filling material 28 flows into the discharge port of the injection hose 29 again, and the filling detection sensors 30 and 30 sink into the filling material 28. Of the filling hose is detected, the signal is output to the motor 33, and the motor 33 is driven to rotate in the normal direction to pull up the injection hose 29 by a predetermined distance.
【0070】このように充填検出用センサ30によっ
て、填充材28の充填レベルを検知しながら注入ホース
29を自動的に移動させているから、該ホース29の吐
出口と充填レベルとの位置関係が正常に保たれ、確実か
つ円滑な充填が可能になる。また、注入ホース29の吐
出口が、填充材28に長時間没入する事態を回避できる
から、注入ホース29に形成される圧力上昇を回避し、
該ホース29の引き上げ時における衝撃の発生を抑制す
る。As described above, since the filling hose 29 is automatically moved while the filling detection sensor 30 detects the filling level of the filling material 28, the positional relationship between the discharge port of the hose 29 and the filling level is determined. It is maintained normally, and reliable and smooth filling becomes possible. Further, since the discharge port of the injection hose 29 can be prevented from immersing in the filling material 28 for a long time, the pressure rise formed in the injection hose 29 can be avoided,
The occurrence of impact when pulling up the hose 29 is suppressed.
【0071】こうして、上記間隙10を上端部まで充填
したところで、填充材28の充填が完了し、この後に注
入ポンプ34やミキサー35、電動ホースリール31等
を撤去する。この場合、上記充填に伴って間隙10内の
圧力が上昇するが、補強枠4の周面は複数のコラムクラ
ンプ22で束縛されているから、補強枠4が変形するこ
とはない。この後、填充材28が硬化すると、補強枠4
と橋脚1が一体になり、当該部の強度が強化される。こ
の場合、間隙10はスペーサ9を介して橋脚1の周囲に
一様に形成されているから、填充材28の偏肉がなく、
その分当該部の強度の信頼性を得られる。In this way, when the gap 10 is filled to the upper end, the filling of the filling material 28 is completed, and then the injection pump 34, the mixer 35, the electric hose reel 31 and the like are removed. In this case, the pressure in the gap 10 increases with the filling, but the peripheral surface of the reinforcing frame 4 is bound by the plurality of column clamps 22, so the reinforcing frame 4 is not deformed. After that, when the filling material 28 hardens, the reinforcing frame 4
And the pier 1 are integrated, and the strength of the relevant part is strengthened. In this case, since the gap 10 is formed uniformly around the pier 1 via the spacer 9, there is no uneven thickness of the filling material 28,
Therefore, the reliability of the strength of the part can be obtained.
【0072】填充材28の硬化後、コラムクランプ22
を撤去し、補強枠4の表面を塗装すれば、一連の補強作
業が終了する。なお、上述した実施形態では上下に隣接
する補強枠4,4の接合部6を非連結状態にしている
が、そのようにしても橋脚1の周囲は填充材28で被覆
され、しかも継手8,8によって一定の接続強度を得ら
れる。それゆえ、合成樹脂製の補強枠4が実現可能にな
り得たのである。しかも、地震発生時には、接合部6の
位置で補強枠4の揺れに一定の自由度が得られるから、
当該部を溶接して強固に連結した場合に比べて、橋脚1
の柔軟性や靭性を得られ、耐震強度を向上し得る一方、
仮に接合部6が開口しても、接合部5は溶接や機械的手
段で連結されているから、接合部6から帯筋やコンクリ
ートが脱落する事態が制止され、所期の効果を奏するも
のである。After the filling material 28 is cured, the column clamp 22
By removing and coating the surface of the reinforcing frame 4, a series of reinforcing work is completed. In addition, in the above-described embodiment, the joint portions 6 of the vertically adjacent reinforcing frames 4 and 4 are in a non-connected state, but even in such a case, the periphery of the pier 1 is covered with the filling material 28, and the joints 8, 8 provides a constant connection strength. Therefore, the reinforcing frame 4 made of synthetic resin could be realized. Moreover, when an earthquake occurs, a certain degree of freedom can be obtained for the shaking of the reinforcing frame 4 at the position of the joint 6,
Compared to the case where the parts are welded and firmly connected, the pier 1
While flexibility and toughness can be obtained and seismic strength can be improved,
Even if the joint 6 is opened, the joint 5 is connected by welding or mechanical means, so that the situation where the stirrup and the concrete fall off from the joint 6 is stopped, and the desired effect is obtained. is there.
【0073】[0073]
【発明の効果】以上のように、請求項1の発明は、橋脚
の地中部に装着する筒状の地下枠を橋脚の周囲に配置
し、該地下枠を振動させるとともに、地下枠と橋脚との
間に高圧水を圧送して、地下枠を沈下打設したから、地
下枠の高速施工を実現し、設備の小型化と設備費の低廉
を図れるとともに、作業範囲を地下枠と橋脚との間に限
定して作業規模を縮小し、掘削量の少量化を図ることが
できる。請求項2の発明は、地下枠の上端部を地上の所
定高さに突出させたから、地上枠との連結作業を容易に
行なうことができる。請求項3の発明は、各地上枠の枠
片を地上より所定高さの橋脚位置で接合し、該接合した
地上枠を順次上方へ移動し、該地上枠に直下の地上枠を
装着したから、地上枠の移動範囲を抑制して、このため
の移動装置の小能力化を図ることができる。請求項4の
発明は、地上枠を順次下方から装着したから、該枠を安
定かつ確実に装着することができる。請求項5の発明
は、隣接する上下の補強枠の接合部を非連結状態とした
から、これらを連結した剛直構造の橋脚に比べて、柔軟
性と靱性を得られる効果がある請求項6の発明は、前記
枠片の軸方向の接合部をボルト若しくはビスによるネジ
連結、または鋲結、釘結、針結等の手段を介して、それ
らの機械的な連結を実現したから、これらを溶接する連
結法に比べて簡便に連結でき、連結後も枠片の一部の取
り換えが可能になるから、それらの補修を合理的に行う
ことができる。請求項7の発明は、枠片の軸方向の接合
部に、互いに係合可能な複数の係合凹部と係合凸部とを
設け、これら係合凹部と係合凸部とをネジ連結したか
ら、枠片を強固に接続することができる。請求項8の発
明は、係合凹部と係合凸部との係合を介して、これらの
移動を拘束したから、ネジ連結前に枠片を接続すること
ができる。請求項9の発明は、一対の枠片を主に鉄若し
くは鉄系の金属または合成樹脂で構成したから、各種部
材の枠片の機械的な連結を実現するとともに、特に合成
樹脂製の枠片の場合、その軽量化と、取り扱いの至便
化、組み付け時の融通性を図れる効果がある。請求項1
0の発明は、一対の合成樹脂製の枠片の軸方向端部を溶
着して接続したから、該枠片を強固に接続することがで
きる。請求項11の発明は、アンカーブロックを設けた
固定枠を橋脚の周面に固定し、該固定枠の外側に補強枠
を配置し、該枠を上記ブロックを介してネジ連結したか
ら、補強枠の簡便な取付けを実現するとともに、上記ブ
ロックを橋脚と補強枠との間隔保持部材として機能させ
ることができる。請求項12の発明は、補強枠の内面に
弾性変位可能な複数のスペーサを設け、該スペーサを橋
脚周面に係合可能に配置したから、補強枠と橋脚との間
に一様な間隔を形成して、填充材の均一な充填が可能に
なり、当該部の強度の信頼性を得るられる効果がある。
請求項13の発明は、填充材を吐出可能な注入ホースを
補強枠と橋脚との間に上下動可能に設け、該ホースの吐
出口内に充填検出センサを設け、この検出信号を介して
注入ホースを上動可能にしたから、填充材を円滑に填充
し、填充時の衝撃を低減して作業の安全性を確保するこ
とができる。請求項14の発明は、地上枠に吸着可能な
マグネットを有するコラムクランプを介して補強枠を束
縛したから、該クランプを簡易かつ迅速に取付けること
ができる。請求項15の発明は、一対の作業台を橋脚を
挟んで連結可能にするとともに、吸着装置を橋脚に向け
て近接離反動可能にしたから、作業台を橋脚に沿って安
定して移動し、補強枠を手際良く取付けることができ
る。請求項16の発明は、一対の作業台を備え、該作業
台を吸着装置と同動可能にしたから、補強枠の取付けを
能率良く行なうことができる。As described above, according to the invention of claim 1, the cylindrical underground frame to be mounted in the underground portion of the pier is arranged around the pier, the underground frame is vibrated, and the underground frame and the pier are Since high-pressure water was pumped in between and the underground frame was sunk and placed, high-speed construction of the underground frame could be realized, downsizing of the equipment and cost of the equipment could be achieved, and the working range was between the underground frame and the pier. The work scale can be reduced only during the period, and the amount of excavation can be reduced. According to the invention of claim 2, since the upper end of the underground frame is projected to a predetermined height above the ground, the connection work with the above-ground frame can be easily performed. According to the invention of claim 3, the frame pieces of the above ground frames are joined at a pier position at a predetermined height above the ground, the joined ground frames are sequentially moved upward, and the ground frame immediately below is mounted to the above ground frame. By suppressing the moving range of the ground frame, it is possible to reduce the capacity of the moving device for this purpose. According to the invention of claim 4, since the ground frame is sequentially mounted from below, the frame can be mounted stably and reliably. According to the invention of claim 5, since the joining portions of the adjacent upper and lower reinforcing frames are in a non-connected state, there is an effect that flexibility and toughness can be obtained as compared with a pier having a rigid structure connecting these. According to the invention, the axial joints of the frame pieces are mechanically connected to each other by means of screw connection with bolts or screws, or by means of tacking, nailing, needle connecting, etc. Compared to the connection method described above, the connection can be performed more easily, and even after the connection, a part of the frame pieces can be replaced, so that they can be repaired rationally. According to the invention of claim 7, a plurality of engaging concave portions and engaging convex portions which can be engaged with each other are provided at the axial joint portion of the frame piece, and these engaging concave portions and the engaging convex portions are screw-connected. Therefore, the frame pieces can be firmly connected. According to the eighth aspect of the invention, since the movements of the engaging concave portions and the engaging convex portions are restrained through the engagement, the frame pieces can be connected before the screw connection. According to the invention of claim 9, since the pair of frame pieces is mainly composed of iron or iron-based metal or synthetic resin, mechanical connection of the frame pieces of various members is realized, and particularly, frame piece made of synthetic resin. In the case of, there is an effect that the weight is reduced, the handling is convenient, and the flexibility at the time of assembling is achieved. Claim 1
In the invention of No. 0, since the axial end portions of the pair of frame pieces made of synthetic resin are welded and connected, the frame pieces can be firmly connected. According to the invention of claim 11, the fixed frame provided with the anchor block is fixed to the peripheral surface of the pier, the reinforcing frame is arranged outside the fixed frame, and the frame is screw-connected through the block. The above-mentioned block can be made to function as a space holding member between the pier and the reinforcing frame while realizing simple attachment. According to the twelfth aspect of the invention, since a plurality of spacers that can be elastically displaced are provided on the inner surface of the reinforcing frame and the spacers are arranged so as to be engageable with the peripheral surface of the pier, a uniform interval is provided between the reinforcing frame and the pier. When formed, the filling material can be uniformly filled, and there is an effect that the reliability of the strength of the relevant portion can be obtained.
According to the invention of claim 13, an injection hose capable of discharging the filling material is provided so as to be vertically movable between the reinforcing frame and the pier, and a filling detection sensor is provided in the discharge port of the hose, and the injection hose is supplied via this detection signal. Since it is possible to move up, it is possible to fill the filler material smoothly, reduce the impact at the time of filling, and ensure the safety of work. According to the fourteenth aspect of the invention, since the reinforcing frame is bound through the column clamp having the magnet that can be attracted to the ground frame, the clamp can be easily and quickly attached. According to the fifteenth aspect of the present invention, the pair of work platforms can be connected with the bridge pier sandwiched therebetween, and the suction device can be moved toward and away from the pier, so that the work platform can be stably moved along the pier, The reinforcing frame can be installed neatly. According to the sixteenth aspect of the present invention, since the pair of worktables is provided and the worktables can be moved together with the suction device, the reinforcing frame can be efficiently attached.
【図1】本発明の第1の実施の形態を示す説明図で、地
下枠の打ち込み前の状況を示している。FIG. 1 is an explanatory view showing a first embodiment of the present invention, showing a situation before driving an underground frame.
【図2】本発明の第1の実施の形態を示す説明図で、地
下枠の打ち込み後の状況を示している。FIG. 2 is an explanatory view showing the first embodiment of the present invention, showing a situation after driving of an underground frame.
【図3】本発明の第1の実施の形態を示す説明図で、最
上部の地上枠の組み付け状況を示している。FIG. 3 is an explanatory view showing the first embodiment of the present invention, showing an assembling state of the uppermost ground frame.
【図4】本発明の第1の実施の形態を示す説明図で、次
段の地上枠の組み付け状況を示している。FIG. 4 is an explanatory view showing the first embodiment of the present invention, showing the assembling state of the next-stage ground frame.
【図5】本発明の第1の実施の形態を示す説明図で、最
下部の地上枠の組み付け状況を示している。FIG. 5 is an explanatory view showing the first embodiment of the present invention, showing an assembling state of the lowermost ground frame.
【図6】本発明の第1の実施の形態を示す説明図で、全
ての地上枠の組み付けを終了した状況を示している。FIG. 6 is an explanatory view showing the first embodiment of the present invention, showing a situation where the assembling of all the ground frames is completed.
【図7】本発明の第1の実施の形態を示す説明図で、地
上枠をコラムクランプで束縛した状況を示している。FIG. 7 is an explanatory view showing the first embodiment of the present invention, showing a situation in which the ground frame is bound by a column clamp.
【図8】本発明の第1の実施の形態を示す説明図で、地
上枠の周面を塗装している状況を示している。FIG. 8 is an explanatory view showing the first embodiment of the present invention, showing a situation in which the peripheral surface of the ground frame is being coated.
【図9】図1のAーA線に沿う拡大断面図である。9 is an enlarged cross-sectional view taken along the line AA of FIG.
【図10】図1のBーB線に沿う拡大断面図である。10 is an enlarged cross-sectional view taken along the line BB in FIG.
【図11】本発明の補強枠取付装置に適用した吸着装置
の要部を示す斜視図である。FIG. 11 is a perspective view showing a main part of a suction device applied to the reinforcing frame mounting device of the present invention.
【図12】図7のCーC線に沿う拡大断面図である。12 is an enlarged cross-sectional view taken along the line CC of FIG.
【図13】図12の要部を拡大して示す断面図である。13 is a cross-sectional view showing an enlarged main part of FIG.
【図14】地上枠の上下位置を位置決めする継手の取付
け状況を示す正面図である。FIG. 14 is a front view showing a mounting state of a joint for positioning the vertical position of the ground frame.
【図15】図14のDーD線に沿う断面図である。15 is a cross-sectional view taken along the line DD of FIG.
【図16】本発明の第1の実施の形態に適用したコラム
クランプを示す斜視図である。、FIG. 16 is a perspective view showing a column clamp applied to the first embodiment of the present invention. ,
【図17】本発明の第1の実施の形態に適用した填充材
の充填検出機構を示す説明図である。FIG. 17 is an explanatory diagram showing a filling material filling detection mechanism applied to the first embodiment of the present invention.
【図18】本発明の第2の実施の形態に適用した地下枠
の打ち込み方法を示す断面図で、振動発生装置と高圧ホ
ースの配置状況を示している。FIG. 18 is a cross-sectional view showing a driving method of an underground frame applied to the second embodiment of the present invention, showing a state of arrangement of a vibration generator and a high pressure hose.
【図19】図18のEーE線に沿う拡大断面図である。19 is an enlarged sectional view taken along the line EE of FIG.
【図20】図18のFーF線に沿う拡大断面図である。20 is an enlarged cross-sectional view taken along the line FF of FIG.
【図21】本発明の第3の実施の形態に適用した補強枠
取付装置を示す斜視図である。FIG. 21 is a perspective view showing a reinforcing frame mounting device applied to a third embodiment of the present invention.
【図22】本発明の第4の実施の形態に適用したコラム
クランプを示す斜視図である。FIG. 22 is a perspective view showing a column clamp applied to a fourth embodiment of the present invention.
【図23】本発明の第5の実施の形態に適用した補強枠
取付装置を示す斜視図である。FIG. 23 is a perspective view showing a reinforcing frame attachment device applied to a fifth embodiment of the present invention.
【図24】本発明の第6の実施の形態に適用した地上枠
の取付け法を示す斜視図である。FIG. 24 is a perspective view showing a method of attaching the ground frame, which is applied to the sixth embodiment of the invention.
【図25】図24の要部を拡大して示す斜視図である。FIG. 25 is an enlarged perspective view showing a main part of FIG. 24.
【図26】図25のGーG線に沿う拡大断面図である。26 is an enlarged sectional view taken along the line GG in FIG.
【図27】図25のHーH線に沿う拡大断面図である。27 is an enlarged cross-sectional view taken along the line HH of FIG. 25.
【図28】本発明の第7の実施の形態を示す橋脚の断面
図である。FIG. 28 is a sectional view of a pier showing a seventh embodiment of the present invention.
【図29】図28の要部を拡大して示す斜視図である。29 is a perspective view showing an enlarged main part of FIG. 28. FIG.
【図30】図28の要部を拡大して示す断面図で、枠片
の連結状況を示している。FIG. 30 is an enlarged cross-sectional view showing a main part of FIG. 28, showing a connection state of frame pieces.
1 橋脚 4 補強枠 4a〜4h 枠片 4(I) 補強枠(地下枠) 4(II) 補強枠(地上枠) 5 接合部 9 スペーサ 13 高圧ホース 14,42,45 補強枠取付装置 18 吸着装置 26 マグネット 30 充填検出センサ 44,48 作業台 51 固定枠 54 アンカーブロック 63 係合凹部 64 係合凸部 DESCRIPTION OF SYMBOLS 1 Bridge pier 4 Reinforcement frame 4a-4h Frame piece 4 (I) Reinforcement frame (underground frame) 4 (II) Reinforcement frame (ground frame) 5 Joint part 9 Spacer 13 High pressure hose 14,42,45 Reinforcement frame attachment device 18 Adsorption device 26 Magnet 30 Filling Detection Sensor 44, 48 Work Table 51 Fixed Frame 54 Anchor Block 63 Engagement Recess 64 Engagement Convex
───────────────────────────────────────────────────── フロントページの続き (72)発明者 下 平 太 郎 東京都千代田区三崎町2丁目5番3号 鉄 建建設 株式会社内 (72)発明者 斎 藤 雅 春 東京都千代田区三崎町2丁目5番3号 鉄 建建設 株式会社内 (72)発明者 松 岡 茂 東京都千代田区三崎町2丁目5番3号 鉄 建建設 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Taro Shimohira 2-3-5 Misaki-cho, Chiyoda-ku, Tokyo Steel Construction Co., Ltd. (72) Inventor Masaharu Saito 2 Misaki-cho, Chiyoda-ku, Tokyo 5th-3th Iron Construction Co., Ltd. (72) Inventor Shigeru Matsuoka 2-3-5th Misakicho, Chiyoda-ku, Tokyo Inside Steel Construction Co., Ltd.
Claims (16)
脚との間に填充材を充填する橋脚の補強工法において、
橋脚の地中部に装着する筒状の地下枠を橋脚の周囲に配
置し、該地下枠を振動させるとともに、地下枠と橋脚と
の間に高圧水を圧送して、地下枠を沈下打設したことを
特徴とする橋脚の補強工法。1. A method of reinforcing a pier, wherein a reinforcing frame is attached to the peripheral surface of the pier, and a filling material is filled between the frame and the pier,
A cylindrical underground frame to be installed in the underground part of the pier was placed around the pier, the underground frame was vibrated, and high-pressure water was pumped between the underground frame and the pier, and the underground frame was sunk. Reinforcement method for piers characterized by this.
させた請求項1記載の橋脚の補強工法。2. The method of reinforcing a pier according to claim 1, wherein the upper end of the underground frame is projected to a predetermined height above the ground.
数の地上枠を橋脚の地上部に重合して装着し、該枠と橋
脚との間に填充材を充填する橋脚の補強工法において、
各地上枠の枠片を地上より所定高さの橋脚位置で接続
し、該接続した地上枠を順次上方へ移動し、該地上枠に
直下の地上枠を装着したことを特徴とする橋脚の補強工
法。3. A bridge pier in which a plurality of above-ground frames in which a pair of half-frame-shaped frame pieces are connected in a tubular shape are superposed on the above-ground portion of a pier and the filler is filled between the frames and the pier. In the reinforcement method,
Reinforcement of piers, characterized in that the frame pieces of each above-ground frame are connected at a pier position at a predetermined height above the ground, the connected above-ground frame is moved upwards in sequence, and the above-ground frame immediately below is attached to the above-ground frame. Construction method.
数の地上枠を橋脚の地上部に重合して装着し、該枠と橋
脚との間に填充材を充填する橋脚の補強工法において、
地上枠を順次下方から装着した請求項1記載の橋脚の補
強工法。4. A bridge pier in which a plurality of above-ground frames in which a pair of half-divided frame pieces are connected in a tubular shape are superposed on the above-ground portion of the pier and the filler is filled between the frames and the pier. In the reinforcement method,
The method for reinforcing a pier according to claim 1, wherein the above-mentioned frame is sequentially mounted from below.
重合して装着し、該枠と橋脚との間に填充材を充填する
橋脚の補強工法において、隣接する上下の補強枠の接合
部を非連結状態とした橋脚の補強工法。5. A reinforcement method for a bridge pier in which a plurality of reinforcing frames are vertically stacked on the peripheral surface of the bridge pier, and a filling material is filled between the frames and the bridge pier. Reinforcement method for bridge piers with joints not connected.
し、該枠片の軸方向の端部を接続し、該枠と橋脚との間
に填充材を充填する橋脚の補強工法において、前記枠片
の軸方向の接合部をボルト若しくはビスによるネジ連
結、または鋲結、釘結、針結等の手段を介して、機械的
に連結した橋脚の補強工法。6. A pier for mounting a pair of half-divided frame pieces on the peripheral surface of the pier, connecting axial end portions of the frame pieces, and filling a filling material between the frame and the pier. In the reinforcement method, a reinforcement method for a bridge pier in which the axial joints of the frame pieces are mechanically connected to each other by means of screw connection with bolts or screws, or by means of rivets, nails, needles or the like.
し、該枠片の軸方向の端部を接続し、該枠と橋脚との間
に填充材を充填する橋脚の補強工法において、前記枠片
の軸方向の接合部に、互いに係合可能な複数の係合凹部
と係合凸部とを設け、これら係合凹部と係合凸部とをネ
ジ連結した請求項6記載の橋脚の補強工法。7. A bridge pier in which a pair of half-shaped frame pieces are attached to the peripheral surface of the pier, the axial ends of the frame pieces are connected, and a filler is filled between the frame and the pier. In the reinforcing method, a plurality of engaging concave portions and engaging convex portions that can be engaged with each other are provided at the axial joint portion of the frame piece, and the engaging concave portions and the engaging convex portions are screw-connected. Reinforcement method for piers described in 6.
これらの移動を拘束した請求項7記載の橋脚の補強工
法。8. The engagement concave portion and the engagement convex portion are engaged with each other,
The method for reinforcing a pier according to claim 7, wherein the movement of the piers is restricted.
した請求項6記載の橋脚の補強工法。9. The method of reinforcing a pier according to claim 6, wherein the pair of frame pieces are made of metal or synthetic resin.
を溶着して接合した請求項9記載の橋脚の補強工法。10. The method for reinforcing a pier according to claim 9, wherein the pair of synthetic resin frame pieces are welded together at their axial ends and joined together.
脚の周面に固定し、該固定枠の外側に補強枠を配置し、
該枠を上記ブロックを介してネジ手段で連結した請求項
3〜5記載の橋脚の補強工法。11. A fixed frame provided with an anchor block is fixed to a peripheral surface of a pier, and a reinforcing frame is arranged outside the fixed frame,
The method of reinforcing a pier according to claim 3, wherein the frame is connected by screw means through the block.
スペーサを設け、該スペーサを橋脚周面に係合可能に配
置した請求項1〜7記載の橋脚の補強工法。12. The method of reinforcing a pier according to claim 1, wherein a plurality of elastically displaceable spacers are provided on the inner surface of the reinforcing frame, and the spacers are arranged so as to be engageable with the peripheral surface of the pier.
枠と橋脚との間に上下動可能に設け、該ホースの吐出口
内に充填検出センサを設け、この検出信号を介して注入
ホースを上動可能にした請求項1および3記載の橋脚の
補強工法。13. An injection hose capable of discharging a filling material is provided so as to be vertically movable between a reinforcing frame and a pier, a filling detection sensor is provided in the discharge port of the hose, and the injection hose is lifted via this detection signal. The method of reinforcing a pier according to claim 1, wherein the pier reinforcement method is movable.
るコラムクランプを介して地上枠を束縛した請求項3〜
6記載の橋脚の補強工法。14. The ground frame is bound by a column clamp having a magnet capable of being attracted to the reinforcing frame.
Reinforcement method for piers described in 6.
可能な吸着装置を備えた補強枠取付装置において、一対
の作業台を橋脚を挟んで連結可能にするとともに、前記
吸着装置を橋脚に向けて近接離反動可能にしたことを特
徴とする補強枠取付装置。15. A reinforcement frame mounting device comprising a vertically movable work platform and a suction device capable of holding a reinforcement frame, wherein a pair of work platforms can be connected with a bridge pier sandwiched therebetween, and the suction device is attached to the bridge pier. Reinforcement frame mounting device characterized in that it can be moved toward and away from the frame.
装置と同動可能にした請求項15記載の補強枠取付装
置。16. The reinforcing frame mounting device according to claim 15, further comprising a pair of worktables, the worktables being movable together with the suction device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP22723995A JP3608584B2 (en) | 1995-08-11 | 1995-08-11 | Bridge pier reinforcement method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22723995A JP3608584B2 (en) | 1995-08-11 | 1995-08-11 | Bridge pier reinforcement method |
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Publication Number | Publication Date |
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JPH0953208A true JPH0953208A (en) | 1997-02-25 |
JP3608584B2 JP3608584B2 (en) | 2005-01-12 |
Family
ID=16857704
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JP22723995A Expired - Fee Related JP3608584B2 (en) | 1995-08-11 | 1995-08-11 | Bridge pier reinforcement method |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006200174A (en) * | 2005-01-19 | 2006-08-03 | Tekken Constr Co Ltd | Reinforcing construction method of pier and its reinforcing device |
JP2007297826A (en) * | 2006-04-28 | 2007-11-15 | East Japan Railway Co | Method for reinforcing bridge pier with steel plate |
JP2008008090A (en) * | 2006-06-30 | 2008-01-17 | Daisan Seiko Kk | Strip-shaped steel plate for reinforcing column body |
JP2009114824A (en) * | 2007-11-05 | 2009-05-28 | Takuei:Kk | Method for placing freshly mixed concrete for seismic strengthening of bridge pier |
JP2009228301A (en) * | 2008-03-24 | 2009-10-08 | Maeda Corp | Elongation method for bridge pier |
JP2012167473A (en) * | 2011-02-14 | 2012-09-06 | Oriental Shiraishi Corp | Reinforcement structure and reinforcement method of columnar structure |
JP5600780B1 (en) * | 2013-07-22 | 2014-10-01 | オリエンタル白石株式会社 | Steel plate winding method for columnar structures |
-
1995
- 1995-08-11 JP JP22723995A patent/JP3608584B2/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006200174A (en) * | 2005-01-19 | 2006-08-03 | Tekken Constr Co Ltd | Reinforcing construction method of pier and its reinforcing device |
JP2007297826A (en) * | 2006-04-28 | 2007-11-15 | East Japan Railway Co | Method for reinforcing bridge pier with steel plate |
JP2008008090A (en) * | 2006-06-30 | 2008-01-17 | Daisan Seiko Kk | Strip-shaped steel plate for reinforcing column body |
JP2009114824A (en) * | 2007-11-05 | 2009-05-28 | Takuei:Kk | Method for placing freshly mixed concrete for seismic strengthening of bridge pier |
JP2009228301A (en) * | 2008-03-24 | 2009-10-08 | Maeda Corp | Elongation method for bridge pier |
JP2012167473A (en) * | 2011-02-14 | 2012-09-06 | Oriental Shiraishi Corp | Reinforcement structure and reinforcement method of columnar structure |
JP5600780B1 (en) * | 2013-07-22 | 2014-10-01 | オリエンタル白石株式会社 | Steel plate winding method for columnar structures |
Also Published As
Publication number | Publication date |
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JP3608584B2 (en) | 2005-01-12 |
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