JP3257990B2 - Expansion device for road bridge joint - Google Patents
Expansion device for road bridge jointInfo
- Publication number
- JP3257990B2 JP3257990B2 JP15962999A JP15962999A JP3257990B2 JP 3257990 B2 JP3257990 B2 JP 3257990B2 JP 15962999 A JP15962999 A JP 15962999A JP 15962999 A JP15962999 A JP 15962999A JP 3257990 B2 JP3257990 B2 JP 3257990B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- seal
- vertical
- seam
- road bridge
- 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 - Lifetime
Links
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- Road Paving Structures (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は道路橋継目部の伸縮
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic device for a road bridge joint.
【０００２】[0002]
【従来の技術】特許第２６３５９２６号公報には、道路
橋の継目部に一対の縦板が該道路橋本体の伸縮を許容す
るジョイント遊間を存して相対向するように設けられ、
該両縦板の相対向する内面同士がゴム製シール板によっ
て連結され、該両縦板の背部に路面を形成するコンクリ
ートが打設されている道路橋継目部の伸縮装置が記載さ
れている。この伸縮装置のシール板は断面形状がＶ字状
ないしはＵ字状になった溝形のものであり、その両側部
が相対向する縦板の内面に加硫接着されている。また、
その縦板は右へ左へと交互に屈曲しながら継目長手方向
に延びている波形板によって形成されている。2. Description of the Related Art Japanese Patent No. 2635926 discloses that a pair of vertical plates are provided at a joint portion of a road bridge so as to be opposed to each other with a gap between joints allowing expansion and contraction of the road bridge body.
There is described an expansion / contraction device for a road bridge joint in which opposing inner surfaces of both vertical plates are connected by a rubber seal plate, and concrete forming a road surface is cast on the backs of the vertical plates. The seal plate of this telescopic device has a V-shaped or U-shaped groove shape in cross section, and both sides are vulcanized and bonded to the inner surfaces of the opposed vertical plates. Also,
The vertical plate is formed by a corrugated plate extending in the longitudinal direction of the seam while alternately bending right and left.
【０００３】[0003]
【発明が解決しようとする課題】上記シール板を縦板に
加硫接着するためには、シール板用の生ゴムを縦板に貼
り付けて熱及び圧力を加える必要があるから、伸縮装置
の施工現場ではその接着作業をすることができず、当該
加硫接着のための工場及び設備を必要とし、コストがか
なり高くなる。しかも、この加硫接着によって一対の縦
板がシール板によって連結された状態になるから、その
ような伸縮継手の運搬及び施工の際の取り扱いに不便に
なる、また、上記縦板は運搬性・施工性等を考慮して例
えば１〜２ｍ程度の長さに設計されているのに対して、
継目の長さ（道路幅員）は例えば５ｍ、１０ｍと縦板よ
りも長い。従って、施工現場において複数枚の縦板を継
目長手方向に連設する必要がある。その場合、シール板
は予め縦板に加硫接着されて該縦板と同じ長さになって
いるから、継目長手方向に相隣る縦板同士を連結すると
ともに、シール板同士も別途接続することになるが、こ
の相隣るシール板同士を水密に接続することは難しい。In order to vulcanize and bond the above-mentioned seal plate to the vertical plate, it is necessary to apply heat and pressure by sticking raw rubber for the seal plate to the vertical plate. The bonding work cannot be performed on site, and a factory and equipment for the vulcanization bonding are required, and the cost is considerably high. Moreover, since the pair of vertical plates are connected by the seal plate by the vulcanization bonding, it becomes inconvenient to handle such expansion joints during transportation and construction. While it is designed to have a length of about 1 to 2 m in consideration of workability etc.,
The length of the joint (road width) is, for example, 5 m or 10 m, which is longer than the vertical plate. Therefore, it is necessary to connect a plurality of vertical plates in the construction site in the seam longitudinal direction. In this case, since the seal plate is previously vulcanized and bonded to the vertical plate and has the same length as the vertical plate, the vertical plates adjacent to each other in the seam longitudinal direction are connected together, and the seal plates are also separately connected. However, it is difficult to connect the adjacent seal plates in a watertight manner.
【０００４】すなわち、本発明の課題は、施工現場にお
いてシール板を縦板に水密に固定することができ、ま
た、継目長手方向に相隣る縦板間におけるシール板同士
の接続を不要にすることができる道路橋継目部の伸縮装
置を提供することにある。[0004] That is, an object of the present invention is to enable a seal plate to be fixed to a vertical plate at a construction site in a water-tight manner, and to eliminate the connection between the seal plates between the vertical plates adjacent in the seam longitudinal direction. It is an object of the present invention to provide a telescopic device for a joint of a road bridge that can be used.
【０００５】[0005]
【課題を解決するための手段】本発明は、このような課
題に対して水膨潤性シーラントをシールに利用して、そ
の解決を図ったものである。SUMMARY OF THE INVENTION The present invention solves such a problem by using a water-swellable sealant for sealing.
【０００６】すなわち、請求項１に係る発明は、道路橋
の継目部に継目長手方向に延びる一対の縦板が該道路橋
本体の伸縮を許容するジョイント遊間を存して相対向す
るように設けられ、該両縦板間にシール板が設けられて
該シール板の両側部が該両縦板の相対向する内面に結合
され、該両縦板の背部に路面を形成するコンクリートが
打設されている道路橋継目部の伸縮装置において、上記
縦板には継目長手方向に延びるシール保持板が該縦板内
面とシール保持板との間隔が略一定になるように固定さ
れ、上記縦板内面とシール保持板との間に上記シール板
の側部と水膨潤性のシーラントとが重ねて設けられ、上
記シール保持板は、その片面に上記縦板に向かって突出
するボルトが設けられ、反対側の面が平坦に形成されて
いて、上記ボルトが上記シール板の側部、シーラント及
び縦板を貫通して該縦板の背部に突出し、上記縦板の背
部に突出したボルトにナットが螺合されて上記シール板
の側部とシーラントとが上記縦板とシール保持板との間
に挟持されていることを特徴とする。That is, in the invention according to claim 1, a pair of vertical plates extending in the longitudinal direction of the seam are provided at the seam portion of the road bridge so as to be opposed to each other with a joint play allowing expansion and contraction of the road bridge body. A seal plate is provided between the vertical plates, both sides of the seal plate are joined to opposing inner surfaces of the vertical plates, and concrete forming a road surface is cast on the back of the vertical plates. In the telescopic device for a joint of a road bridge, a seal holding plate extending in a longitudinal direction of the seam is fixed to the vertical plate so that an interval between the inner surface of the vertical plate and the seal holding plate is substantially constant. A side portion of the seal plate and a water-swellable sealant are provided so as to overlap with each other and the seal holding plate.
The seal holding plate protrudes toward the vertical plate on one side
Bolts are provided and the opposite surface is formed flat
And the bolts are on the side of the seal plate, sealant and
And penetrates the vertical plate, projects to the back of the vertical plate, and
The nut is screwed into the bolt protruding from the
Between the vertical plate and the seal holding plate
Characterized in that it is sandwiched.
【０００７】上記縦板としては、板面を垂直にして継目
長手方向に直線的に延びる直板であっても、右へ左へと
交互に屈曲して継目長手方向に延びた波形板であっても
よい。The vertical plate may be a straight plate having a vertical plate surface and extending linearly in the longitudinal direction of the seam, or a corrugated plate alternately bent right and left to extend in the longitudinal direction of the joint. Is also good.
【０００８】従って、上記伸縮装置によれば、降雨時に
はシーラントが雨水によって膨潤することによって、シ
ール保持板と縦板との間を強く密閉することになり、高
いシール性が得られる。しかも、縦板に対してシール板
を予め加硫接着しておく必要がなく、縦板の運搬、取り
扱い、施工が容易になる。この場合、シーラントは、シ
ール板と縦板との間に設けても、シール板とシール保持
板との間に設けてもよい。 [0008] Therefore, according to the telescopic device, the sealant swells with rainwater during rainfall, so that the space between the seal holding plate and the vertical plate is strongly sealed, and high sealing performance is obtained. Moreover, there is no need to previously bond the seal plate to the vertical plate by vulcanization, so that transportation, handling, and construction of the vertical plate become easy. In this case, the sealant may be provided between the seal plate and the vertical plate or between the seal plate and the seal holding plate .
【０００９】また、シール保持板同士が相対向する面は
平坦になるから、大きな伸縮量を確保する上で有利にな
る。すなわち、シール保持板同士が向かい合う面に突起
が存在する場合には、温度変化によって縦板間隔が狭く
なってきたときでも、該突起が反対側のシール保持板に
当たらないようにする必要があるから、該突起の突出量
だけ伸縮量が制限されることになるが、本発明の場合は
その問題がない。Further , the surfaces of the seal holding plates facing each other are flattened, which is advantageous in securing a large amount of expansion and contraction. In other words, when there is a projection on the surface where the seal holding plates face each other, it is necessary to prevent the projection from hitting the seal holding plate on the opposite side even when the vertical plate interval becomes narrow due to a temperature change. Therefore, the amount of expansion and contraction is limited by the amount of protrusion of the projection, but in the case of the present invention, there is no problem.
【００１０】請求項２に係る発明は、道路橋の継目部に
継目長手方向に延びる一対の縦板が該道路橋本体の伸縮
を許容するジョイント遊間を存して相対向するように設
けられ、該両縦板間にシール板が設けられて該シール板
の両側部が該両縦板の相対向する内面に結合され、該両
縦板の背部に路面を形成するコンクリートが打設されて
いる道路橋継目部の伸縮装置において、上記縦板には継
目長手方向に延びるシール保持板が該縦板内面とシール
保持板との間に略一定の間隙が形成されるように固定さ
れ、上記縦板内面とシール保持板との間に上記シール板
の側部と水膨潤性のシーラントとが重ねられて挟持され
ており、上記縦板は、右へ左へと交互に屈曲して継目長
手方向に延びた波形板であり、上記波形板の複数枚が継
目長手方向に連設されていて、上記シール板及びシーラ
ントが継目長手方向に相隣る波形板に掛かるように継目
長手方向に連続して延びていることを特徴とする。[0010] The invention according to claim 2 is a method according to claim 2 , wherein
A pair of vertical plates extending in the longitudinal direction of the joint expands and contracts the road bridge body.
Are set to face each other with a play
And a seal plate is provided between the two vertical plates, and the seal plate
Are joined to opposing inner surfaces of the vertical plates,
Concrete that forms the road surface is poured into the back of the vertical plate
In the expansion device at the joint of the road bridge,
A seal holding plate extending in the longitudinal direction of the eye seals the inner surface of the vertical plate.
It is fixed so that a substantially constant gap is formed between it and the holding plate.
Between the inner surface of the vertical plate and the seal holding plate.
Side and the water-swellable sealant are overlapped and pinched
And, said vertical plate is a corrugated plate extending in seam longitudinally bent alternately to left to right, a plurality of said corrugated plate is being continuously to seam longitudinally, said sealing plate and It is characterized in that the sealant extends continuously in the seam longitudinal direction so as to hang on the corrugated plate adjacent in the seam longitudinal direction.
【００１１】波形板は、平板からプレスによって波形に
成形する関係上、長尺物を得ることが難しい。そのた
め、その継目長手方向の長さは１〜２ｍ程度になり、道
路幅員が長い場合には複数枚の波形板を連設することに
なる。これに対して、本発明の場合、上記シール板及び
シーラントが継目長手方向に相隣る波形板に掛かるよう
に継目長手方向に連続して延びているから、相隣る波形
板の連設部においてシール板同士を接続する必要がなく
なり、しかも良好なシール性が得られる。なお、波形
は、台形波、三角波等の角波であっても、正弦波等のな
だらかな曲波であってもよい。Since a corrugated plate is formed into a corrugated shape by pressing from a flat plate, it is difficult to obtain a long product. Therefore, the length of the joint in the longitudinal direction is about 1 to 2 m, and when the width of the road is long, a plurality of corrugated plates are continuously provided. On the other hand, in the case of the present invention, the seal plate and the sealant extend continuously in the seam longitudinal direction so as to hang on the corrugated plate adjacent in the seam longitudinal direction. In this case, there is no need to connect the sealing plates, and good sealing properties can be obtained. The waveform may be an angular wave such as a trapezoidal wave or a triangular wave, or a gentle curved wave such as a sine wave.
【００１２】[0012]
【発明の効果】以上のように、請求項１に係る発明によ
れば、継目長手方向に延びる縦板にシール保持板が該縦
板内面とシール保持板との間隔が略一定になるように固
定され、該縦板内面とシール保持板との間に上記シール
板の側部と水膨潤性のシーラントとが重ねて設けられ、
上記シール保持板の片面に突設されたボルトがシール板
の側部、シーラント及び縦板を貫通して該縦板の背部に
突出し、該ボルトにナットが螺合されて上記シール板の
側部とシーラントとが上記縦板とシール保持板との間に
挟持され、シール保持板同士の相対向する面が平坦に形
成されているから、降雨時にはシーラントが雨水によっ
て膨潤することによって、シール保持板と縦板との間が
強く密閉されることになり、より高いシール性が得られ
るとともに、大きな伸縮量を確保する上で有利になり、
しかも、縦板の運搬、取り扱い、施工が容易になり、コ
ストの低減を図る上でも有利になる。As described above, according to the first aspect of the present invention, the seal holding plate is provided on the vertical plate extending in the longitudinal direction of the joint so that the distance between the inner surface of the vertical plate and the seal holding plate is substantially constant. Is fixed, and a side portion of the seal plate and a water-swellable sealant are provided so as to overlap between the inner surface of the vertical plate and the seal holding plate ,
A bolt protruding from one side of the seal holding plate
Penetrates the side part, sealant and vertical plate to the back of the vertical plate
The nut is screwed into the bolt and the sealing plate is
Side and sealant are between the vertical plate and the seal holding plate
The opposing surfaces of the seal holding plates are flattened
Because the sealant swells with rainwater during rainfall, the gap between the seal holding plate and the vertical plate is strongly sealed, and higher sealing performance is obtained.
It is also advantageous in securing a large amount of expansion and contraction ,
Moreover, transport, handling and construction of the vertical plate are facilitated, which is advantageous in reducing costs.
【００１３】また、請求項２に係る発明によれば、上記
縦板が波形板であり、該波形板の複数枚が継目長手方向
に連設され、上記シール板及びシーラントが継目長手方
向に相隣る波形板に掛かるように継目長手方向に連続し
て延びているから、相隣る波形板の連設部にも良好なシ
ール性が得られ、しかも施工が容易になる。 According to the second aspect of the present invention, the vertical plate is a corrugated plate, a plurality of the corrugated plates are continuously provided in the seam longitudinal direction, and the seal plate and the sealant are aligned in the seam longitudinal direction. since Tonariru continuously extends in the seam longitudinally as applied to the corrugated sheet, obtained good sealing properties in the connecting portion of Aitonaru corrugated plate, yet becomes easy installation.
【００１４】[0014]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１５】図１に示す道路橋継目部において、１は道
路橋本体（コンクリート床版）、２は橋面舗装、３は本
発明に係る伸縮装置である。伸縮装置３は、ジョイント
遊間４を存して相対向する一対の縦板５，５と、該両縦
板５，５の相対向する内面同士を連結するゴム製シール
板６と、該両縦板５，５の各々の背部に打設された後打
ちコンクリート７，７とを備え、後打ちコンクリート７
の上面は路面を形成している。In the joint portion of the road bridge shown in FIG. 1, 1 is a road bridge main body (concrete floor slab), 2 is a pavement on a bridge surface, and 3 is a telescopic device according to the present invention. The telescopic device 3 includes a pair of longitudinal plates 5 and 5 facing each other with a joint play 4 therebetween, a rubber seal plate 6 connecting the facing inner surfaces of the vertical plates 5 and 5 to each other, A post-cast concrete 7, 7 cast on the back of each of the plates 5, 5;
Forms a road surface.
【００１６】上記縦板５，５は、図２に示すように右へ
左へと交互に台形波状に屈曲しながら継目長手方向に延
びている鋼板製の波形板であり、右へ左へと交互に屈曲
しながら継目長手方向に延びた波形のジョイント遊間４
を形成するように相対向している。縦板５の背面には上
記後打ちコンクリート７に埋設され該縦板５を道路橋本
体１に強固に固定するアンカー９が突設されている。各
縦板５の相手側へ突出した凸部の下面には底板１０が固
定されている。上記シール板６は、その両側部の各々が
シーラント１２と共に上記縦板５，５の対向する内面に
シール保持板１３によって保持されている。The vertical plates 5 and 5 are corrugated plates made of a steel plate extending in the longitudinal direction of the seam while being alternately bent to the right and left in a trapezoidal wave shape as shown in FIG. Corrugated joint play 4 extending in the seam longitudinal direction while bending alternately 4
Are opposed to each other. An anchor 9 buried in the post-cast concrete 7 and firmly fixing the vertical plate 5 to the road bridge main body 1 is provided on the rear surface of the vertical plate 5. A bottom plate 10 is fixed to the lower surface of the protrusion protruding to the other side of each vertical plate 5. The seal plate 6 is held on both opposing inner surfaces of the vertical plates 5 and 5 together with the sealant 12 by a seal holding plate 13 on both sides thereof.
【００１７】図２に示すように、縦板５の継目長手方向
に対して斜めに延びる斜め部分の上部には前後に間隔を
おいて２つのボルト用孔１４，１４が形成されている。
シール板６は、断面Ｕ字状に曲げられていて、上記ジョ
イント遊間４を継目長手方向に延びており、両側部には
ボルト用孔１５が継目長手方向に間隔をおいて形成され
ている。このボルト用孔１５の配設間隔は上記縦板５の
ボルト用孔１４の配設間隔と同じである。シーラント１
２は、水膨潤性のゴムによって板状に形成されていて、
同じく継目長手方向に延びていて、シール板６のボルト
用孔１５と同様に継目長手方向に間隔をおいて形成され
た複数のボルト用孔１６を有する。As shown in FIG. 2, two bolt holes 14, 14 are formed at an upper portion of an oblique portion of the vertical plate 5 which extends obliquely with respect to the longitudinal direction of the seam, and are spaced apart from each other in front and rear.
The seal plate 6 is bent in a U-shaped cross section, extends in the joint play 4 in the joint longitudinal direction, and has bolt holes 15 formed on both sides at intervals in the joint longitudinal direction. The arrangement interval of the bolt holes 15 is the same as the arrangement interval of the bolt holes 14 of the vertical plate 5. Sealant 1
2 is formed in a plate shape by a water-swellable rubber,
It also has a plurality of bolt holes 16 extending in the seam longitudinal direction and formed at intervals in the seam longitudinal direction similarly to the bolt holes 15 of the seal plate 6.
【００１８】シール保持板１３は、細巾の鋼板を上記縦
板５の台形波に倣った台形状に屈曲させてなるものであ
り、台形の両側斜辺部にボルト用孔１８，１８が形成さ
れている。このボルト用孔１８，１８の間隔は上記ボル
ト用孔１４等の配設間隔に対応している。なお、シール
保持板１３は、直線状に延びるものであっても、くの字
状のものであっても、複数の台形波が交互に逆方向に突
出したものであってもよい。The seal holding plate 13 is formed by bending a narrow steel plate into a trapezoidal shape following the trapezoidal wave of the vertical plate 5. Bolt holes 18, 18 are formed on both oblique sides of the trapezoid. ing. The distance between the bolt holes 18 corresponds to the distance between the bolt holes 14 and the like. In addition, the seal holding plate 13 may extend linearly, may have a V shape, or may have a plurality of trapezoidal waves alternately projecting in the opposite direction.
【００１９】上記シーラント１２は、上記縦板５，５の
対向する内面に接触するように上記シール板６の側部外
面に重ねられ、上記シール保持板１３はシール板６の側
部内面に重ねられ、ボルト１７がこのシール保持板１３
のボルト用孔１８、シール板６のボルト用孔１５、シー
ラント１２のボルト用孔１６並びに縦板５のボルト用孔
１４を順に貫通し、該縦板５の背部に突出した当該ボル
ト１７にナットが螺合されて、当該シール保持板１３は
上記縦板５に対して該縦板５の内面とシール保持板１３
の外面との間に略一定の間隙（例えば２〜１０ｍｍ）が
形成されるように固定され、そのことによって、上記シ
ール板６の側部とシーラント１２とは縦板５とシール保
持板１３とに挟持されている。The sealant 12 is superposed on the outer surface of the side of the seal plate 6 so as to contact the opposing inner surfaces of the vertical plates 5, 5. The seal holding plate 13 is superposed on the inner surface of the side of the seal plate 6. And the bolt 17 is attached to the seal holding plate 13.
Through the bolt hole 18, the bolt hole 15 of the seal plate 6, the bolt hole 16 of the sealant 12, and the bolt hole 14 of the vertical plate 5 in this order. Are screwed into the seal holding plate 13 so that the inner surface of the vertical plate 5 and the seal holding plate 13
Substantially constant gap (e.g. 2 to 10 mm) between the outer surface is fixed to is formed by the above sheet
The side of the sealing plate 6 and the sealant 12 are sandwiched between the vertical plate 5 and the seal holding plate 13.
【００２０】また、図２に示すように、上記縦板５はそ
の複数枚が継目長手方向に連設され、相隣る縦板５，５
同士は互いの縦板端に設けられた連結板１１，１１にボ
ルト及びナットを適用して連結されているのに対して、
シール板６及びシーラント１２は相隣る縦板５，５に掛
かるように道路幅員の全長にわたって連続している。一
方、上記シール保持板１３については、複数の台形状シ
ール保持板１３が組み合わされて１本のシール板６及び
シーラント１２の保持に供されている。As shown in FIG. 2, a plurality of the vertical plates 5 are connected in the longitudinal direction of the joint, and
While the members are connected to each other by applying bolts and nuts to connecting plates 11, 11 provided at the ends of the vertical plates,
The seal plate 6 and the sealant 12 are continuous over the entire length of the road width so as to hang on the adjacent vertical plates 5 and 5. On the other hand, as for the seal holding plate 13, a plurality of trapezoidal seal holding plates 13 are combined to be used for holding one seal plate 6 and the sealant 12.
【００２１】上記シーラント１２としては、水道水に浸
漬したときの１時間当たりの重量変化量が例えば１０〜
３０％となるものが好ましい。また、図１に示すよう
に、シール板６の断面Ｕ字状になった溝内には必要に応
じて、砂等の微粒子充填材１９を充填し、さらにその上
に液状ゴムを流し込んでゴム層２０を形成するようにし
てもよい。シール板６の断面形状はＵ字状以外に、Ｖ字
状その他の溝形状にすることができる。The sealant 12 has a weight change per hour when immersed in tap water, for example, 10 to 10 hours.
It is preferably 30%. Also, as shown in FIG. 1, the inside of the groove having a U-shaped cross section of the seal plate 6 is filled with a particulate filler 19 such as sand as necessary, and a liquid rubber is poured on the filler. The layer 20 may be formed. The cross-sectional shape of the sealing plate 6 can be V-shaped or another groove-shaped other than U-shaped.
【００２２】従って、上記伸縮装置３によれば、降雨時
にはシーラント１２が雨水によって膨潤することによっ
て、シール保持板１３と縦板５との間を強く密閉するこ
とになり、高いシール性が得られる。しかも、縦板５に
対してシール板６を予め加硫接着しておく必要がなく、
施工現場でシール板６を縦板５に固定することができ、
縦板５の運搬、取り扱い、施工が容易になる。また、シ
ール板６及びシーラント１２が道路幅員の全長にわたっ
て連続しているから、継目長手方向に相隣る縦板５，５
同士を連結するだけで、シール板同士の接続は不要にな
り、施工が容易になるとともに、相隣る縦板５，５の連
結部におけるシールもより完全なものになる。Therefore, according to the expansion and contraction device 3, the sealant 12 swells with rainwater during rainfall, so that the space between the seal holding plate 13 and the vertical plate 5 is strongly sealed, and high sealing performance is obtained. . In addition, there is no need to previously bond the sealing plate 6 to the vertical plate 5 by vulcanization.
The sealing plate 6 can be fixed to the vertical plate 5 at the construction site,
Transportation, handling, and construction of the vertical plate 5 are facilitated. Further, since the seal plate 6 and the sealant 12 are continuous over the entire length of the road width, the vertical plates 5, 5 adjacent to each other in the longitudinal direction of the joint are used.
By simply connecting them, the connection between the seal plates becomes unnecessary, and the construction is facilitated, and the seal at the connecting portion between the adjacent vertical plates 5, 5 becomes more complete.
【００２３】図３は他の実施形態を示すものである、こ
の形態では、シール板６が、上記両縦板５，５の相対向
する内面にそれぞれ結合された結合部２２，２２と、該
両結合部２２，２２の各々より該両縦板５，５間（ジョ
イント遊間４）の中央に向かって若干下降傾斜しながら
張り出した支持部２３，２３と、該両張出し支持部２
３，２３の各々の先端に両端が繋がって上記両縦板５，
５間の中央に吊り下げられ下方へ折れ込んだ折込伸縮部
２４とを備えてなる。FIG. 3 shows another embodiment. In this embodiment, a sealing plate 6 is connected to connecting portions 22, 22 respectively connected to opposing inner surfaces of the vertical plates 5, 5. The support portions 23, 23 projecting from each of the two connecting portions 22, 22 while slightly descending and tilting toward the center between the vertical plates 5, 5 (joint play 4), and the both projecting support portions 2
Both ends are connected to the tip of each of the three vertical plates 5, 23.
And a folding extension 24 that is suspended at the center between the five and bent downward.
【００２４】上記結合部２２は、先の実施形態と同様に
水膨潤性シーラント１２と共にシール保持板１３によっ
て縦板５に結合されている。The connecting portion 22 is connected to the vertical plate 5 by the seal holding plate 13 together with the water-swellable sealant 12 as in the previous embodiment.
【００２５】従って、本実施形態の場合も先の実施形態
と同様の作用効果が得られるとともに、シール板６の折
込伸縮部２４は路面に開口する溝幅がジョイント遊間４
よりもかなり狭いものになり、通行者に対して不安感を
与えることが少なくなる。また、上記折込伸縮部２４
は、張出し支持部２３，２３によってジョイント遊間の
中央に位置付けられ、その側壁と縦板５の内面との間に
隙間２７が形成されているから、該隙間２７によって当
該伸縮装置３の伸縮性が高くなる。すなわち、夏場など
道路橋本体１が伸長してジョイント遊間が狭くなってき
ても、その伸長は上記隙間２７によって吸収される。Therefore, in the present embodiment, the same operation and effect as those of the previous embodiment can be obtained, and the width of the groove that opens to the road surface can be reduced by changing the width of the groove that opens to the road surface.
It is much narrower than it is and less anxious to passers-by. In addition, the foldable extension part 24
Is positioned at the center of the play between the joints by the overhanging support portions 23, 23, and a gap 27 is formed between the side wall and the inner surface of the vertical plate 5. Get higher. That is, even when the road bridge main body 1 is extended in summer or the like and the play space of the joint is narrowed, the extension is absorbed by the gap 27.
【００２６】上記張出し支持部２３，２３は、ジョイン
ト遊間４の中央に向かって下降傾斜しているから、該ジ
ョイント遊間４が狭くなるときに下方へ撓み易く、ジョ
イント遊間４の伸縮が円滑なものになるとともに、折込
伸縮部２４はその位置が下がり、路上に盛り上がること
がないため、通過する車両のタイヤによって破損すると
いうこともない。また、ジョイント遊間４が広くなると
きは上記張出し支持部２３，２３の下降傾斜角度が緩や
かになり、さらには折込伸縮部２４が開くことになる。The overhanging support portions 23, 23 are inclined downward toward the center of the joint play 4, so that when the joint play 4 becomes narrow, they easily bend downward and the expansion and contraction of the joint play 4 is smooth. At the same time, the position of the foldable telescopic part 24 is lowered and does not rise on the road, so that it is not damaged by the tire of the passing vehicle. Further, when the play 4 of the joint is widened, the downward inclination angle of the overhanging support portions 23, 23 becomes gentle, and further, the foldable extension portion 24 is opened.
【００２７】図４はさらに他の実施形態を示すものであ
る。この形態では、縦板５，５及びシール保持板１３が
継目長手方向に直線状に延びた直板によって形成され、
また、シール保持板１３には外側へ向かって突出したボ
ルト１７が溶接によって設けられている。このシール保
持板１３の上記ボルト１７の突出側とは反対側の面は平
坦に形成されている。他の構成は図３に示す形態と実質
的には同じである。FIG. 4 shows still another embodiment. In this embodiment, the vertical plates 5, 5 and the seal holding plate 13 are formed by straight plates extending linearly in the seam longitudinal direction,
Further, bolts 17 projecting outward are provided on the seal holding plate 13 by welding. The surface of the seal holding plate 13 opposite to the side from which the bolt 17 protrudes is formed flat. The other configuration is substantially the same as the embodiment shown in FIG.
【００２８】従って、本形態の場合はシール保持板１３
にボルト１７が設けられているから、施工現場でボルト
を準備する必要がなく、また、相対向するシール保持板
１３，１３の内面は平坦に形成されているから、該シー
ル保持板１３，１３の間隔を広くとることができ、伸縮
量の確保に有利になる。Therefore, in the case of this embodiment, the seal holding plate 13
Since the bolts 17 are provided at the construction site, there is no need to prepare bolts at the construction site, and the inner surfaces of the opposing seal holding plates 13, 13 are formed flat, so that the seal holding plates 13, 13 are formed flat. Can be widened, which is advantageous for securing the amount of expansion and contraction.
【図１】本発明に係る道路橋継目部の断面図。FIG. 1 is a sectional view of a road bridge joint according to the present invention.
【図２】伸縮装置の一部を示す一部断面にした分解斜視
図。FIG. 2 is an exploded perspective view showing a part of a telescopic device in a partial cross section.
【図３】本発明の他の実施形態に係る伸縮装置の一部を
示す断面図。FIG. 3 is a sectional view showing a part of a telescopic device according to another embodiment of the present invention.
【図４】本発明のさらに他の実施形態に係る伸縮装置の
一部を示す一部断面にした断面図。FIG. 4 is a partially sectional view showing a part of a telescopic device according to still another embodiment of the present invention.
１ 道路橋本体 ２ 橋面舗装 ３ 伸縮装置 ４ ジョイント遊間 ５ 縦板 ６ シール板 ７ コンクリート １２ シーラント １３ シール保持板 １４ ボルト用孔 １５ 同上 １６ 同上 １７ ボルト DESCRIPTION OF SYMBOLS 1 Road bridge main body 2 Bridge surface pavement 3 Telescopic device 4 Joint play space 5 Vertical plate 6 Seal plate 7 Concrete 12 Sealant 13 Seal holding plate 14 Bolt hole 15 Same as above 16 Same as above 17 Bolt
Claims (2)
一対の縦板が該道路橋本体の伸縮を許容するジョイント
遊間を存して相対向するように設けられ、該両縦板間に
シール板が設けられて該シール板の両側部が該両縦板の
相対向する内面に結合され、該両縦板の背部に路面を形
成するコンクリートが打設されている道路橋継目部の伸
縮装置において、 上記縦板には継目長手方向に延びるシール保持板が該縦
板内面とシール保持板との間に略一定の間隙が形成され
るように固定され、 上記縦板内面とシール保持板との間に上記シール板の側
部と水膨潤性のシーラントとが重ねて設けられ、 上記シール保持板は、その片面に上記縦板に向かって突
出するボルトが設けられ、反対側の面が平坦に形成され
ていて、 上記ボルトが上記シール板の側部、シーラント及び縦板
を貫通して該縦板の背部に突出し、 上記縦板の背部に突出したボルトにナットが螺合されて
上記シール板の側部とシーラントとが上記縦板とシール
保持板との間に 挟持されていることを特徴とする道路橋
継目部の伸縮装置。A pair of vertical plates extending in the seam longitudinal direction are provided at a seam portion of a road bridge so as to be opposed to each other with a joint play allowing expansion and contraction of the road bridge body. Expansion and contraction of a road bridge joint where a seal plate is provided and both side portions of the seal plate are joined to opposing inner surfaces of the two vertical plates, and concrete forming a road surface is cast on the back of the two vertical plates. In the apparatus, a seal holding plate extending in the seam longitudinal direction is fixed to the vertical plate so that a substantially constant gap is formed between the inner surface of the vertical plate and the seal holding plate. And a side part of the seal plate and a water-swellable sealant are provided so as to overlap with each other, and the seal holding plate projects on one surface thereof toward the vertical plate.
Are provided, and the opposite surface is formed flat.
Have been, the side the bolt is of the seal plate, the sealant and the vertical plate
Penetrates through the back of the vertical plate, and a nut is screwed into a bolt protruding from the back of the vertical plate.
The side of the seal plate and the sealant are sealed with the vertical plate.
An expansion / contraction device for a road bridge joint, which is sandwiched between a holding plate and the holding plate .
一対の縦板が該道路橋本体の伸縮を許容するジョイント
遊間を存して相対向するように設けられ、該両縦板間に
シール板が設けられて該シール板の両側部が該両縦板の
相対向する内面に結合され、該両縦板の背部に路面を形
成するコンクリートが打設されている道路橋継目部の伸
縮装置において、 上記縦板には継目長手方向に延びるシール保持板が該縦
板内面とシール保持板との間に略一定の間隙が形成され
るように固定され、 上記縦板内面とシール保持板との間に上記シール板の側
部と水膨潤性のシーラントとが重ねられて挟持されてお
り、 上記縦板は、右へ左へと交互に屈曲して継目長手方向に
延びた波形板であり、 上記波形板の複数枚が継目長手方
向に連設されていて、 上記シール板及びシーラントが継目長手方向に相隣る波
形板に掛かるように継目長手方向に連続して延びている
ことを特徴とする道路橋継目部の伸縮装置。2. A seam longitudinally extending at a seam of a road bridge.
A joint in which a pair of vertical plates allow the road bridge body to expand and contract.
It is provided so as to face each other with play, and between the two vertical plates.
A seal plate is provided, and both side portions of the seal plate are
It is connected to opposing inner surfaces and forms a road surface behind the two vertical plates.
The extension of the road bridge joint where the concrete to be formed is cast
In the compression device, a seal holding plate extending in the longitudinal direction of the seam is provided on the vertical plate.
A substantially constant gap is formed between the inner surface of the plate and the seal holding plate.
So that the side of the seal plate is located between the inner surface of the vertical plate and the seal holding plate.
Part and the water-swellable sealant are
Ri, the vertical plate is bent alternately to the left to the right in the seam longitudinally
An extended corrugated plate, where a plurality of the corrugated plates are seam-long
It has been continuously to direction, Aitonaru wave the sealing plate and the sealant is the seam longitudinally
An expansion / contraction device for a road bridge joint, which extends continuously in the longitudinal direction of the joint so as to hang on a form plate .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15962999A JP3257990B2 (en) | 1999-06-07 | 1999-06-07 | Expansion device for road bridge joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15962999A JP3257990B2 (en) | 1999-06-07 | 1999-06-07 | Expansion device for road bridge joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000345507A JP2000345507A (en) | 2000-12-12 |
| JP3257990B2 true JP3257990B2 (en) | 2002-02-18 |
Family
ID=15697901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15962999A Expired - Lifetime JP3257990B2 (en) | 1999-06-07 | 1999-06-07 | Expansion device for road bridge joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3257990B2 (en) |
-
1999
- 1999-06-07 JP JP15962999A patent/JP3257990B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000345507A (en) | 2000-12-12 |
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