JP2937683B2 - Precast slab construction method in suspended slab bridge construction method and jig used for the construction method - Google Patents
Precast slab construction method in suspended slab bridge construction method and jig used for the construction methodInfo
- Publication number
- JP2937683B2 JP2937683B2 JP7600393A JP7600393A JP2937683B2 JP 2937683 B2 JP2937683 B2 JP 2937683B2 JP 7600393 A JP7600393 A JP 7600393A JP 7600393 A JP7600393 A JP 7600393A JP 2937683 B2 JP2937683 B2 JP 2937683B2
- Authority
- JP
- Japan
- Prior art keywords
- slab
- construction method
- jig
- precast
- suspended
- 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.)
- Expired - Fee Related
Links
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- Bridges Or Land Bridges (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、吊床版橋工法に於け
るプレキャスト床版施工法及び該施工法に用いる治具に
関するものであり、特に、橋台間に張架せられたＰＣ鋼
材にプレキャスト床版を架設するための施工法並びに該
施工法に用いる治具に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a precast slab construction method in a suspended slab construction method and a jig used in the construction method, and more particularly to a precast method for a PC steel material stretched between abutments. The present invention relates to a construction method for erection of a floor slab and a jig used in the construction method.
【０００２】[0002]
【従来の技術】従来、プレキャスト床版を橋台間に張設
したＰＣ鋼材に吊架して架設する工法は知られている。
而して、上記工法に於て、プレキャスト床版を一方の橋
台端から他方の橋台側へ移送させる場合には、該一方の
橋台前面に該プレキャスト床版を運搬、配置するための
足場、支保工を仮設し、そして、現場に搬入されたプレ
キャスト床版をクレーンを用いて前記橋台前面の支保工
上に仮置きし、更に、橋台間に張設したＰＣ鋼材の下方
まで台車等にて横移動させ、ジャッキー等を用いて高さ
調整を行って該プレキャスト床版を前記ＰＣ鋼材の下面
に吊下せしめて移送している。2. Description of the Related Art Conventionally, there has been known a construction method in which a precast slab is suspended from a PC steel material stretched between abutments.
Thus, in the above method, when the precast slab is transferred from one end of the abutment to the other abutment, a scaffold or support for transporting and placing the precast slab on the front of the one abutment. Temporarily construct the work, and temporarily place the precast slab carried into the site on the shoring in front of the abutment using a crane. The precast floor slab is suspended and transferred to the lower surface of the PC steel material by adjusting the height using a jackie or the like.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の工法に於て
は、橋台前面にプレキャスト床版を仮置きし、そして、
横移動させるための大規模な支保工の設置が必要であ
り、更に、該プレキャスト床版をＰＣ鋼材の下面まで横
移動させ、そして、高さ調整するための設備も必要とな
ってコストアップの要因となる。In the above-mentioned conventional method, a precast slab is temporarily placed on the front of the abutment, and
It is necessary to install a large-scale shoring for lateral movement, and furthermore, a facility for laterally moving the precast slab to the lower surface of the PC steel material, and a facility for adjusting the height is also required, thereby increasing costs. It becomes a factor.
【０００４】そこで、前記プレキャスト床版の横移動並
びに高さ調整設備を省略すると共に、橋台前面の仮設備
の規模も可及的に縮小してコストダウンに寄与できるよ
うにするために解決せらるべき技術的課題が生じてくる
のであり、本発明は該課題を解決することを目的とす
る。[0004] In order to solve the above problem, it is necessary to omit the horizontal movement and height adjustment equipment for the precast slab and to reduce the size of the temporary equipment in front of the abutment as much as possible to contribute to cost reduction. A technical problem to be solved arises, and an object of the present invention is to solve the problem.
【０００５】[0005]
【課題を解決するための手段】この発明は上記目的を達
成するために提案せられたものであり、橋台間にＰＣ鋼
材を張架して、該橋台間にプレキャスト床版を架設する
工法に於て、上部吊部材を揚重装置にて吊り下げて、該
上部吊部材から垂下した吊持具にプレキャスト床版の短
辺方向の両側部を止着せしめ、該揚重装置にて吊下した
該プレキャスト床版をコ型治具の片側の開放端面より該
コ型治具の内側面に移送せしめて載置し、然る後、該上
部吊部材を該プレキャスト床版より取外して９０度回転
せしめ乍ら該上部吊部材の長手方向を前記コ型治具の長
手方向の上面に配置して該上部吊部材に吊下した前記吊
持具をコ型治具の上面に設けた止着部に止着し、更に、
該揚重装置によって該コ型治具に載置されているプレキ
ャスト床版を橋台間に張架されているＰＣ鋼材の所定位
置にセットして前記ＰＣ鋼材に吊下せしめるようにした
吊床版橋工法に於けるプレキャスト床版施工法、及び上
記上部吊部材に垂下した吊持具は長さを任意に調節でき
るようにした吊床版橋工法に於けるプレキャスト床版施
工法に用いる上部吊部材、並びに上記上部吊部材は、長
方形状の枠組にて構成され、その長辺方向の長さをコ型
治具の短辺方向の長さよりも長くすると共に、該上部吊
部材の短辺方向の長さとコ型治具の短辺方向の長さとを
略等しくして成る吊床版橋工法に於けるプレキャスト床
版施工法に用いる治具を提供するものである。SUMMARY OF THE INVENTION The present invention has brought proposals in order to achieve the above object, method of and stretching the PC steel between abutments, to erection the flop Rekyasuto slab between該橋stand In the above, the upper hanging member is suspended by a lifting device, and both sides in the short side direction of the precast floor slab are fixed to the hanging tool hanging from the upper hanging member, and the lifting device is used to suspend the hanging member. The lowered precast slab is transferred from one open end face of the U-shaped jig to the inner surface of the U-shaped jig and placed thereon. After that, the upper suspension member is removed from the precast slab, and The upper suspension member is disposed on the upper surface in the longitudinal direction of the U-shaped jig while being rotated by an angle, and the suspender suspended from the upper suspension member is provided on the upper surface of the U-shaped jig. Fasten to the wearing part,
A suspended floor slab in which a precast slab placed on the U-shaped jig by the lifting device is set at a predetermined position on a PC steel material stretched between bridge abutments and suspended on the PC steel material. Precast slab construction method in the construction method, and the upper hanging member used in the precast slab construction method in the suspended slab bridge construction method in which the length of the suspension hanging from the upper suspension member can be arbitrarily adjusted, And the upper suspending member is a long
Is constituted by square-shaped framework, the length of the long side as well as longer than the short side length of the U-type fixture, in the short side direction of the upper hanging member length and co jig short An object of the present invention is to provide a jig used for a precast slab construction method in a suspended slab bridge construction method having a length substantially equal to a side direction.
【０００６】[0006]
【作用】一方の橋台側に於て、プレキャスト床版を橋台
間に張設されているＰＣ鋼材に吊架して前方へ移送する
とき、先ず、上部吊部材を揚重装置にて吊り下げ、そし
て、この上部吊部材から垂下されている吊持具にプレキ
ャスト床版の短辺方向の両側部を止着せしめる。通常
は、プレキャスト床版の中央部の前後方向に貫通されて
いる挿入ケーブル用シース孔にボルトを挿入し、該ボル
トを前記吊持具の下端部に止着する。そして、該揚重装
置を作動させてプレキャスト床版を上部吊部材に吊り下
げ乍らコ型治具の片側の開放端面より該プレキャスト床
版を該コ型治具内に挿入して載置する。このとき、該上
部吊部材の長辺方向の長さをコ型治具の短辺方向の長さ
より長く形成してある請求項３記載の発明により、プレ
キャスト床版をコ型治具内に挿入して載置させる作業が
円滑に行われる。[Function] On one abutment side, when the precast slab is suspended on the PC steel material stretched between the abutments and transferred to the front, first, the upper suspension member is suspended by the lifting device, Then, both side portions in the short side direction of the precast floor slab are fixed to the hanging fixture hanging from the upper hanging member. Normally, a bolt is inserted into a sheath hole for an insertion cable, which is penetrated in the front-rear direction at the center of the precast floor slab, and the bolt is fastened to the lower end of the hanging device. Then, the precast slab is inserted into the U-shaped jig from one open end face of the U-shaped jig while the precast slab is suspended from the upper hanging member by operating the lifting device. . At this time, according to the invention of claim 3, the length of the upper suspension member in the long side direction is formed longer than the length of the short side direction of the U-shaped jig. The work to be placed and placed is performed smoothly.
【０００７】斯くして、該プレキャスト床版をコ型治具
内に載置した後、前記上部吊部材を該プレキャスト床版
より外し、そして、９０度回転させて該上部吊部材をコ
型治具の長手方向と一致させる。このとき、上部吊部材
の長辺方向の長さとコ型治具の長辺方向の長さとが略等
しく形成されている前記請求項３記載の発明により、該
上部吊部材から垂下されている吊持具は、該コ型治具上
面の略四隅近傍に対峙することができ、従って、該吊持
具をコ型治具の四隅近傍に設けてある止着部に引掛し、
そして、揚重装置の作動によって該コ型治具をＰＣ鋼材
の近傍まで吊下し乍ら運び、更に該コ型治具の片側の開
放端面をＰＣ鋼材の側方に対峙せしめ、そして、前記プ
レキャスト床版上にＰＣ鋼材が配置されるように該コ型
治具をＰＣ鋼材側に移動させる。然るときは、該ＰＣ鋼
材はプレキャスト床版上に当接する状態に配置されるの
であるが、このとき、該ＰＣ鋼材は橋台間に張架されて
いる関係上、自重によってたるみ、橋台側が傾斜した状
態となる。そこで、上部吊部材の四隅に垂下されている
吊持具の高さを調整することができる請求項２記載の発
明により、プレキャスト床版の傾きと、前記ＰＣ鋼材の
傾きとを一致させることができるので、該プレキャスト
床版をＰＣ鋼材に吊架する作業が円滑に行われる。After the precast slab has been placed in the U-shaped jig, the upper suspension member is removed from the precast slab and rotated by 90 degrees to remove the upper suspension member. Align with the longitudinal direction of the tool. At this time, the length of the upper suspension member in the long side direction and the length of the U-shaped jig in the long side direction are substantially equal to each other. The holding tool can face approximately four corners near the upper surface of the U-shaped jig, and therefore, the hanging tool is hooked on a fastening portion provided near the four corners of the U-shaped jig,
Then, by operating the lifting device, the U-shaped jig is carried while being hung to the vicinity of the PC steel material, and one open end surface of the U-shaped jig is made to face the side of the PC steel material, and The U-shaped jig is moved to the PC steel material side so that the PC steel material is placed on the precast slab. In such a case, the PC steel is placed in contact with the precast slab, but at this time, because the PC steel is stretched between the abutments, the PC steel sags due to its own weight, and the abutment side is inclined. It will be in the state of having done. Therefore, according to the invention of claim 2, the height of the hanging jig hanging from the four corners of the upper hanging member can be adjusted, and the inclination of the precast floor slab and the inclination of the PC steel can be matched. As a result, the work of suspending the precast slab on the PC steel material is performed smoothly.
【０００８】斯くして、該プレキャスト床版をＰＣ鋼材
に吊架した後は、再び揚重装置の作動によってプレキャ
スト床版の支持を該コ型治具より脱せしめ、そして、該
コ型治具を側方へ移動させて元の移動まで運び、次の作
業に移行させる。After the precast slab has been suspended from the PC steel material, the support of the precast slab is released from the U-shaped jig by operating the lifting device again. Move to the side, carry it to its original position, and move on to the next operation.
【０００９】[0009]
【実施例】以下、本発明の一実施例を図１乃至図７に従
って説明する。図６及び図７に於て、１は橋台２，２間
に張架されるＰＣ鋼材である。而して、該ＰＣ鋼材１は
多数本が並列に張架され、そして、該ＰＣ鋼材１，１…
に多数のプレキャスト床版３，３…が一連に吊架されて
該橋台２，２間に据付けられることになる。EXAMPLES Hereinafter, a description will be given of an embodiment of the present invention according to FIGS. 1-7. 6 and 7 , reference numeral 1 denotes a PC steel material stretched between the abutments 2 and 2. Thus, a large number of the PC steel materials 1 are stretched in parallel, and the PC steel materials 1, 1,...
Are suspended in series and installed between the abutments 2 and 2.
【００１０】又、該プレキャスト床版３は前後方向中央
部３ａを***してあり、該中央部３ａの両側に平坦な凹
部３ｂ，３ｂを設け、該凹部３ｂ，３ｂ上に前記ＰＣ鋼
材１，１…を左右夫々同数宛載置し、そして、その上面
に止め金具４，４を載置してボルト５，５…にて該止め
金具４，４を該凹部３ｂ，３ｂ上に固定し、前記ＰＣ鋼
材１，１…に該止め金具４，４を介してプレキャスト床
版３を吊架できるように構成されている。The precast floor slab 3 has a raised central portion 3a in the front-rear direction, and flat recesses 3b, 3b are provided on both sides of the central portion 3a, and the PC steel material 1, 1 is placed on the recesses 3b, 3b. Are placed on the right and left sides of the same number, and the stoppers 4, 4 are placed on the upper surface thereof, and the stoppers 4, 4 are fixed on the recesses 3b, 3b with bolts 5, 5,. The precast floor slab 3 can be suspended from the PC steel materials 1, 1.
【００１１】又、該プレキャスト床版３の中央部３ａの
前後方向に複数の挿入ケーブル用シース孔６，６…が貫
設されており、更に、前後方向の両側縁には高欄７の建
込みのための箱抜き穴８，８…が設けられて該高欄７を
プレキャスト床版３に建込むことができるように構成さ
れている。次に、図１乃至図３に基づいてコ型治具９を
説明する。該コ型治具９は正面視がコ字状に形成されて
いる。而して、図示例のコ型治具９は同一形状の二個の
コ字状片９ａ，９ａを設け、一定の間隔Ｌを有して前後
に配設すると共に、前後を横継ぎ部材１０，１０…にて
結合して一体的に構成してある。又、該コ型治具９は上
横部材９ｂ，９ｂと下横部材９ｃ，９ｃとを縦部材９
ｄ，９ｄにて結合し、更に、図示例では下横部材９ｃ，
９ｃを上横部材９ｂ，９ｂより長く形成してある。A plurality of insertion cable sheath holes 6, 6,... Are formed through the center part 3a of the precast floor slab 3 in the front-rear direction. Are provided so that the rails 7 can be built into the precast floor slab 3. Next, the U-shaped jig 9 will be described with reference to FIGS. The U-shaped jig 9 is formed in a U-shape when viewed from the front. Thus, the U-shaped jig 9 in the illustrated example is provided with two U-shaped pieces 9a, 9a having the same shape, arranged at a certain distance L in the front and rear, and the front and rear crossing members 10a. , 10... Are integrally formed. In addition, the U-shaped jig 9 connects the upper horizontal members 9b, 9b and the lower horizontal members 9c, 9c to the vertical members 9b.
d, 9d, and in the illustrated example, the lower horizontal member 9c,
9c is formed longer than the upper horizontal members 9b, 9b.
【００１２】又、該下横部材９ｃ，９ｃの先端部（図１
に於て左端部）と、図３に示す如く、該前方の下横部材
９ｃの前端部に張出材１１を突設し、該張出材１１との
夫々の先端部にストッパー１２，１２を上方へ向って突
設し、そして、該下横部材９ｃ，９ｃ上に載置されるプ
レキャスト床版３の位置決めを為すと同時に不慮落下し
ないように形成してある。Further, the front end portions of the lower horizontal members 9c, 9c (FIG. 1)
As shown in FIG. 3, an overhang 11 is projected from a front end of the front lower transverse member 9c, and stoppers 12 and 12 are provided at respective distal ends of the overhang 11 and the overhang 11 as shown in FIG. Are formed so as to protrude upward, and are positioned so that the precast floor slab 3 placed on the lower horizontal members 9c, 9c does not drop at the same time as being accidentally dropped.
【００１３】更に、該コ型治具９の上面の略四隅近傍に
は後述のチェーンを引掛するための引掛部１３，１３，
１３，１３が設けられており、且つ、該コ型治具９の内
側部の高さＨは前記プレキャスト床版３を該コ型治具９
の内側面に挿入し、そして、作業員が該プレキャスト床
版３上にて該プレキャスト床版３をＰＣ鋼材１，１…に
吊架するための作業が行われるに適する高さに形成され
ていることは当然である。Further, hook portions 13, 13 for hooking a chain, which will be described later, are provided in the vicinity of approximately four corners on the upper surface of the U-shaped jig 9.
13 and 13, and the height H of the inside of the U-shaped jig 9 is set so that the precast floor slab 3 is attached to the U-shaped jig 9.
And is formed at a height suitable for an operator to perform an operation for suspending the precast slab 3 on the PC steel materials 1, 1,... On the precast slab 3. It is natural that there is.
【００１４】次に図４乃至図６に従って上部吊部材１４
について説明する。該上部吊部材１４は長方形状の枠組
構造を有し、且つ、該上部吊部材１４の長辺方向の長さ
Ｍはコ型治具９の短辺方向の長さＭａよりも長く形成さ
れ、更に、該上部吊部材１４の短辺方向の長さＮとコ型
治具９の短辺方向の長さＭａとを略等しく形成してあ
る。[0014] Next hanging upper according to FIG. 4 to FIG. 6 member 14
Will be described. The upper hanging member 14 has a rectangular frame structure, and the length M of the upper hanging member 14 in the long side direction is formed longer than the length Ma of the U-shaped jig 9 in the short side direction, Further, the length N of the upper suspension member 14 in the short side direction and the length Ma of the U-shaped jig 9 in the short side direction are substantially equal.
【００１５】又、該上部吊部材１４の四隅からチェーン
１５，１５，１５，１５を垂下してその下端部に夫々フ
ック１５ａ，１５ａ，１５ａ，１５ａを設け、更に、夫
々のチェーン１５，１５，１５，１５にはチェーンブロ
ック１６，１６，１６，１６が設けられており、且つ、
該チェーン１５，１５，１５，１５を垂下したとき、該
チェーン１５，１５，１５，１５は夫々前記コ型治具９
の上面に設けられている引掛部１３，１３，１３，１３
と垂直線上にて対峙できるように構成されている。Chains 15, 15, 15, 15 are suspended from four corners of the upper suspension member 14, and hooks 15a, 15a, 15a, 15a are respectively provided at lower ends thereof. Chain blocks 16, 16, 16, 16 are provided in 15, 15, and
When the chains 15, 15, 15, 15 are suspended, the chains 15, 15, 15, 15 respectively
Hooks 13, 13, 13, 13 provided on the upper surface of
And a vertical line.
【００１６】尚、図中符号１７はクレーンであり、該ク
レーン１７によって前記上部吊部材１４をワイヤ１７
ａ，１７ａ，１７ａ，１７ａを介して吊り下げて移動さ
せることができるように構成される。又、１８はプレキ
ャスト床版３の挿入ケーブル用シース孔６，６…に嵌挿
されたボルトであり、該ボルト１８は該挿入ケーブル用
シース孔６，６…のうち、前後面の両側に位置する挿入
ケーブル用シース孔６，６，６，６に夫々嵌挿され、そ
して、前記上部吊部材１４の四隅から垂下されたチェー
ン１５，１５，１５，１５にて該ボルト１８，１８，１
８，１８を夫々引掛して該プレキャスト床版３を上部吊
部材１４にて吊り下げ乍ら前記コ型治具９の一側の開放
面に対して、該上部吊部材１４の長辺方向を直角にした
状態で挿入せしめ、そして、該プレキャスト床版３をコ
型治具９の下横部材９ｃ，９ｃ上に載置させるのであ
る。In the figure, reference numeral 17 denotes a crane, and the crane 17 connects the upper suspending member 14 with a wire 17.
a, 17a, 17a, 17a. Reference numeral 18 denotes a bolt fitted into the sheath hole 6, 6,... For the insertion cable of the precast floor slab 3, and the bolt 18 is located on both sides of the front and rear surfaces of the sheath hole 6, 6,. And the bolts 18, 18, 1 are attached to the chains 15, 15, 15, 15 hanging from four corners of the upper suspension member 14, respectively.
8 and 18, the precast floor slab 3 is hung by the upper hanging member 14 while the long side direction of the upper hanging member 14 is The precast floor slab 3 is placed on the lower horizontal members 9c, 9c of the U-shaped jig 9 in a state where the slab is inserted at a right angle.
【００１７】斯くして、プレキャスト床版３を集積場所
に於て該上部吊部材１４を用いてコ型治具９に載置した
ときは、該上部吊部材１４の各チェーン１５，１５，１
５，１５を該プレキャスト床版３より外し、そして、該
チェーン１５，１５，１５，１５を夫々上方へ持上げる
と共に９０度回転させてコ型治具９の長辺方向と該上部
吊部材１４の長辺方向とを一致させて該上部吊部材１４
の四隅から垂下されているチェーン１５，１５，１５，
１５を夫々該コ型治具９の上面に設けられている引掛部
１３，１３，１３，１３に引掛させ、そして、前記クレ
ーン１７を作動させて該コ型治具９を橋台２，２間に張
設したＰＣ鋼材１，１…の所定位置まで移動せしめ、更
に、該コ型治具９の片側の開放部を該ＰＣ鋼材１，１…
の側面に対峙せしめて該ＰＣ鋼材１，１…側へ移動せし
める。Thus, when the precast floor slab 3 is placed on the U-shaped jig 9 using the upper suspension member 14 at the collecting place, each chain 15, 15, 1 of the upper suspension member 14 is placed.
5 and 15 are removed from the precast floor slab 3, and the chains 15, 15, 15 and 15 are respectively lifted upward and rotated by 90 degrees, and the direction of the long side of the U-shaped jig 9 and the upper suspension member 14 are Of the upper suspension member 14
Chains 15,15,15, hanging from the four corners of
15 are respectively hooked on hook portions 13, 13, 13, 13 provided on the upper surface of the U-shaped jig 9, and the crane 17 is operated to move the U-shaped jig 9 between the abutments 2 and 2. Are moved to a predetermined position of the PC steel materials 1, 1..., And the open part on one side of the U-shaped jig 9 is moved to the PC steel materials 1, 1,.
Are moved to the PC steel materials 1, 1... Side.
【００１８】このとき、該ＰＣ鋼材１，１…に干渉され
ることなく、プレキャスト床版３の左右の凹部３ｂ，３
ｂ上面に該ＰＣ鋼材１，１…が配置された状態となり、
そこで、前述せる如く、止め金具４，４にて該プレキャ
スト床版３を該ＰＣ鋼材１，１…に吊架せしめるのであ
る。このとき、該ＰＣ鋼材１，１…はその自重によって
たるみ、そして、プレキャスト床版３の取付位置が傾い
ているので、上部吊部材１４の四隅に設けたチェーンブ
ロック１６，１６，１６，１６を操作し、そして、前記
ＰＣ鋼材１，１…の傾きに対応してプレキャスト床版３
の上面を傾斜せしめると共に、該プレキャスト床版３の
高さも任意に調整して該プレキャスト床版３の前記吊架
作業を円滑に行うことができるように構成されている。At this time, the left and right concave portions 3b, 3b of the precast floor slab 3 are not interfered by the PC steel materials 1, 1,.
b is in a state where the PC steel materials 1, 1 ... are arranged on the upper surface,
Therefore, as described above, the precast floor slab 3 is suspended from the PC steel materials 1, 1,. At this time, the PC steel materials 1, 1... Are slackened by their own weight, and the mounting position of the precast floor slab 3 is inclined, so that the chain blocks 16, 16, 16, 16 provided at the four corners of the upper suspension member 14 are removed. Operating, and the precast floor slab 3 corresponding to the inclination of the PC steel material 1, 1 ...
Is inclined, and the height of the precast slab 3 is arbitrarily adjusted so that the suspension operation of the precast slab 3 can be performed smoothly.
【００１９】尚、本発明は、本発明の精神を逸脱しない
限り種々の改変を為すことができ、そして、本発明が該
改変されたものに及ぶことは当然である。The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.
【００２０】[0020]
【発明の効果】この発明は上記一実施例に詳述せる如
く、吊床版橋工法に於て、プレキャスト床版を橋台間に
張架せられているＰＣ鋼材に吊架する作業を行うとき、
上部吊部材とコ型治具とを組合せて該プレキャスト床版
を吊下し、そして、揚重装置によって該ＰＣ鋼材の所定
位置にセットし、且つ、高さ調整、角度調整を行うこと
により従来必要とされている橋台前面の仮設備の規模を
縮小させることができると共に、移動高さ調整のための
設備を省略してコストダウンに寄与することができ、且
つ、該プレキャスト床版の吊架作業も極めて円滑に行わ
れ、作業性を向上させる等、正に諸種の著大なる効果を
奏する発明である。According to the present invention, as described in detail in the above-mentioned embodiment, in the suspension deck slab bridge method, when performing the work of suspending the precast slab to the PC steel material stretched between the abutments,
Conventionally, the precast floor slab is suspended by combining an upper suspension member and a U-shaped jig, and is set at a predetermined position of the PC steel material by a lifting device, and height adjustment and angle adjustment are performed. It is possible to reduce the scale of the required temporary equipment in front of the abutment, to omit equipment for adjusting the moving height, to contribute to cost reduction, and to suspend the precast floor slab. The invention is an invention in which various kinds of remarkable effects are exhibited, for example, work is performed extremely smoothly, and workability is improved.
【図１】本発明の一実施例であるコ型治具の正面図。FIG. 1 is a front view of a U-shaped jig according to an embodiment of the present invention.
【図２】図１の平面図。FIG. 2 is a plan view of FIG. 1;
【図３】図２のＡ−Ａ線断面図。FIG. 3 is a sectional view taken along line AA of FIG. 2;
【図４】本発明の一実施例を示し、上部吊部材にプレキ
ャスト床版を吊り下げた状態を示す斜面図。FIG. 4 is a perspective view showing the embodiment of the present invention and showing a state in which a precast floor slab is hung on an upper hanging member.
【図５】本発明の上部吊部材とコ型治具とを用いてプレ
キャスト床版をコ型治具に挿入して載置する状態を示す
斜面図。FIG. 5 is a perspective view showing a state in which a precast floor slab is inserted into and mounted on a U-shaped jig using the upper hanging member and the U-shaped jig of the present invention.
【図６】プレキャスト床版を載置したコ型治具をＰＣ鋼
材の所定個所にセットした状態を示す斜面図。FIG. 6 is a perspective view showing a state in which a U-shaped jig on which a precast floor slab is placed is set at a predetermined position of a PC steel material.
【図７】橋台間にプレキャスト床版を架設した状態を示
す側面図。FIG. 7 is a side view showing a state where a precast floor slab is erected between abutments.
フロントページの続き (72)発明者 高橋 信行 埼玉県大宮市大成町２丁目226番地 株 式会社熊谷組関越支店内 (72)発明者 脇島 秀行 東京都新宿区津久戸町２番１号 株式会 社熊谷組東京本社内 (58)調査した分野(Int.Cl.6，ＤＢ名) E01D 21/00 E01D 11/02 Continued on the front page (72) Inventor Nobuyuki Takahashi 2-226, Taisei-cho, Omiya-shi, Saitama Pref. Inside the Kumagaya Gumi Kanetsu Branch (72) Inventor Hideyuki Wakishima 2-1 Tsukudo-cho, Shinjuku-ku, Tokyo Stock Company Kumagai Gumi Tokyo Head Office (58) Fields surveyed (Int.Cl. 6 , DB name) E01D 21/00 E01D 11/02
Claims (3)
にプレキャスト床版を架設する工法に於て、上部吊部材
を揚重装置にて吊り下げて、該上部吊部材から垂下した
吊持具にプレキャスト床版の短辺方向の両側部を止着せ
しめ、該揚重装置にて吊下した該プレキャスト床版をコ
型治具の片側の開放端面より該コ型治具の内側面に移送
せしめて載置し、然る後、該上部吊部材を該プレキャス
ト床版より取外して９０度回転せしめ乍ら該上部吊部材
の長手方向を前記コ型治具の長手方向の上面に配置して
該上部吊部材に吊下した前記吊持具をコ型治具の上面に
設けた止着部に止着し、更に、該揚重装置によって該コ
型治具に載置されているプレキャスト床版を橋台間に張
架されているＰＣ鋼材の所定位置にセットして前記ＰＣ
鋼材に吊下せしめるようにしたことを特徴とする吊床版
橋工法に於けるプレキャスト床版施工法。1. A PC steel material is stretched between abutments, and
A At a method for bridging a flop Rekyasuto deck, hanging the upper hanging member at lifting device, fastening both side portions in the short side direction of the precast slab to the lifting jig depending from said upper hanging member Then, the precast floor slab suspended by the lifting device is transferred from one open end face of the U-shaped jig to the inner surface of the U-shaped jig and placed thereon. Is removed from the precast floor slab and rotated by 90 degrees, the longitudinal direction of the upper suspending member is arranged on the upper surface in the longitudinal direction of the U-shaped jig, and the suspending device suspended by the upper suspending member is The pre-cast floor slab mounted on the U-shaped jig is fixed to the fixing part provided on the upper surface of the mold jig, and the PC steel material stretched between the abutments by the pre-cast slab is further fixed. Set to the position and the PC
A precast slab construction method in a suspended slab bridge construction method characterized by being suspended from steel.
を任意に調節できるようにしたことを特徴とする請求項
１記載の吊床版橋工法に於けるプレキャスト床版施工法
に用いる上部吊部材。2. The method according to claim 1, wherein the length of the hanging tool hanging from the upper hanging member can be adjusted arbitrarily. Upper suspension member.
構成され、その長辺方向の長さをコ型治具の短辺方向の
長さよりも長くすると共に、該上部吊部材の短辺方向の
長さとコ型治具の短辺方向の長さとを略等しくしたこと
を特徴とする請求項１又は２記載の吊床版橋工法に於け
るプレキャスト床版施工法に用いる治具。3. The upper suspension member is a rectangular frame.
Is configured, as well as longer than the short-side direction of the length of the long side direction of the length of the U-type fixture, in the short side direction of the length of the short side direction of the upper hanging members and the co-jig and the length The jig used in the precast slab construction method in the suspended slab bridge construction method according to claim 1 or 2, wherein the jig is substantially equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7600393A JP2937683B2 (en) | 1993-04-01 | 1993-04-01 | Precast slab construction method in suspended slab bridge construction method and jig used for the construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7600393A JP2937683B2 (en) | 1993-04-01 | 1993-04-01 | Precast slab construction method in suspended slab bridge construction method and jig used for the construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06287916A JPH06287916A (en) | 1994-10-11 |
| JP2937683B2 true JP2937683B2 (en) | 1999-08-23 |
Family
ID=13592636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7600393A Expired - Fee Related JP2937683B2 (en) | 1993-04-01 | 1993-04-01 | Precast slab construction method in suspended slab bridge construction method and jig used for the construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2937683B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100964155B1 (en) * | 2008-02-04 | 2010-06-17 | 김근택 | A precast deck slab of a bridge |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4787381B1 (en) * | 2011-03-15 | 2011-10-05 | 株式会社小山 | Girder bridge suspension method using girder bridge suspension jig |
| CN110329895A (en) * | 2019-08-06 | 2019-10-15 | 安徽水利开发有限公司 | Large scale prefabricated piece of dedicated boom hoisting |
-
1993
- 1993-04-01 JP JP7600393A patent/JP2937683B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100964155B1 (en) * | 2008-02-04 | 2010-06-17 | 김근택 | A precast deck slab of a bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06287916A (en) | 1994-10-11 |
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