JPS6210306A - Extension joint for bridge - Google Patents
Extension joint for bridgeInfo
- Publication number
- JPS6210306A JPS6210306A JP14797385A JP14797385A JPS6210306A JP S6210306 A JPS6210306 A JP S6210306A JP 14797385 A JP14797385 A JP 14797385A JP 14797385 A JP14797385 A JP 14797385A JP S6210306 A JPS6210306 A JP S6210306A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- finger
- bridge
- fingers
- shaped body
- 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
- Road Paving Structures (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
(産業上の利用分野)
本発明は橋梁用伸縮継手に関し、特に橋梁の目地間隔の
伸縮が大きい場合に使用して好適な橋梁用伸縮継手に関
する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an expansion joint for a bridge, and particularly to an expansion joint for a bridge that is suitable for use when the joint spacing of a bridge expands and contracts significantly.
(従来の技術)
橋梁用の伸縮継手としては、従来フィンガー型と呼ばれ
る継手が一般に使用されている。この継手は、鋳鉄等よ
りなる複数のフィンガーを櫛歯状に並設した1対以上の
フィンガーブロックを(その各基部側端部がそれぞれ橋
梁等の構造物に固定され、かつ各フィンガーブロックの
各フィンガーが対をなすフィンガーブロックのフィンガ
ー間隙に位置するようにして対向して配設し、気温の変
動や地震等による橋梁の目地間隔の伸縮に追随して対向
するフィンガーブロック対が相互に相対移動をするよう
に構成されている。さらにこの型の継手の一種として、
フィンガー間隙に車輌のタイヤが落込んだり、泥やごみ
等がフィンガー間隙から落下することを防止するために
、この継手の各フィンガーブロック対に跨るようにして
ゴム製の板状体をフィンガーブロック対上に載置してフ
ィンガーの長手方向における板状体の各端部をフィンガ
ーブロックの各端部に固定したものが知られでいる。(Prior Art) As an expansion joint for a bridge, a joint called a finger type is generally used. This joint consists of one or more pairs of finger blocks in which a plurality of fingers made of cast iron or the like are arranged side by side in a comb-like shape (each base end of which is fixed to a structure such as a bridge, and each of the fingers of each finger block is The fingers are arranged facing each other so that the fingers are located in the gaps between the fingers of a pair of finger blocks, and the pairs of opposing finger blocks move relative to each other as the bridge joint spacing expands and contracts due to temperature fluctuations, earthquakes, etc. Furthermore, as a type of this type of fitting,
In order to prevent vehicle tires from falling into the finger gaps and to prevent mud and dirt from falling from the finger gaps, a rubber plate is placed between each finger block pair so as to straddle each finger block pair of this joint. It is known that the plate-like body is placed on top of the finger block and each end of the plate-like body in the longitudinal direction of the finger is fixed to each end of the finger block.
上記ゴム製の板状体をフィン、ゴーブロック対上に載置
した従来のフィンガー型伸縮継手においては、橋梁の目
地間隔が挟まりゴム製板状体が圧縮されると、ゴム製板
状体が上方に撓んで浮き上るという問題があった。特に
目地間隔の伸縮が大きい吊り橋等においては、目地間隔
が狭まった時のゴム製板状体の浮き上りは顕著となり、
車輌の通行上危険であるばかりでなく、板状体自体を破
損させるおそれが大きい。In the conventional finger-type expansion joint in which the above-mentioned rubber plate-like body is placed on fins and go-block pairs, when the bridge joint gap is pinched and the rubber plate-like body is compressed, the rubber plate-like body is compressed. There was a problem with it bending upward and floating. Particularly in suspension bridges where the gap between joints expands and contracts significantly, the lifting of the rubber plate becomes noticeable when the gap between the joints narrows.
Not only is this dangerous for vehicles to pass, but there is a great possibility that the plate itself may be damaged.
本発明は、ゴム製板状体を備えたフィンガー型伸縮継手
における上記問題点を解決することを目的としてなされ
たものであって、?!梁の目地間隔が狭まって板状体が
圧縮された時に板状体が浮き上るおそれのないフィンガ
ー型伸縮継手を提供しようとするものである。The present invention has been made for the purpose of solving the above-mentioned problems in finger-type expansion joints equipped with rubber plate-like bodies, and includes: ! The purpose of the present invention is to provide a finger type expansion joint in which there is no fear that the plate-like body will lift up when the joint interval of the beams is narrowed and the plate-like body is compressed.
〔問題点を解決する構成〕
上記目的を達成する本発明の継手は、櫛歯状の複数のフ
ィンガーを有する1対以上のフィンガーブロックをその
各基部側端部がそれぞれ橋梁等の構造物に固定され、か
つ各フィンガーブロックの各フィンガーが対をなすフィ
ンガーブロックのフィンガー間隙に位置するように対向
して配設し、各フィンガーブロック対に跨るようにして
ゴム・合成樹脂等の弾性体よりなる板状体を該フィンガ
ーブロック対上に載置してフィンガーの長手方向におけ
る該板状体の端部を該フィンガーブロックまたは該構造
物に固定した橋梁用継手において、該フィンガー、の適
宜の箇所に摺動自在に装着した。[Configuration to Solve the Problems] The joint of the present invention that achieves the above object has one or more pairs of finger blocks each having a plurality of comb-like fingers, each of which has its base end fixed to a structure such as a bridge. A plate made of an elastic material such as rubber or synthetic resin, arranged so that each finger of each finger block is located in the gap between the fingers of the pair of finger blocks, and straddles each finger block pair. In a bridge joint in which a plate-shaped body is placed on the finger block pair and the end of the plate-shaped body in the longitudinal direction of the finger is fixed to the finger block or the structure, the finger is slid at an appropriate location. It was attached so that it could move freely.
係止部材に該板状体を連結したことを特徴とするもので
ある。It is characterized in that the plate-like body is connected to a locking member.
板状体がフィンガーに摺動自在に装着した係止部材に連
結されているので、橋梁の目地間隔が狭まった時板状体
の収縮によって吸収されない圧縮力が係止部材に作用す
る結果係止部材はこの圧縮力が板状体の収縮によって吸
収されるまで、フィンガーに沿ってIM動し、板状体は
フィンガーに密着したま)目地間隔の縮少に追随して圧
縮される。The plate-shaped body is connected to the locking member slidably attached to the finger, so when the joint spacing of the bridge narrows, compressive force that is not absorbed by the contraction of the plate-shaped body acts on the locking member, resulting in locking. The member moves IM along the fingers until this compressive force is absorbed by contraction of the plate-shaped body, and the plate-shaped body is compressed following the reduction of the joint spacing while remaining in close contact with the fingers.
以下添付図面を参照して本発明の実施例について説明す
る。第1図は本発明にかかる伸縮継手を1対のフィンガ
ーブロックに板状体を取付けた状態で示す側面図、第2
図はフィンガーブロックから板状体を取除いた状態で示
す平面図である。Embodiments of the present invention will be described below with reference to the accompanying drawings. Fig. 1 is a side view showing the expansion joint according to the present invention with a plate-like body attached to a pair of finger blocks;
The figure is a plan view showing the finger block with the plate-shaped body removed.
伸縮継手1は1対以上のフィンガーブロック2゜2′を
備えている。本実施例においては、複数対のフィンガー
ブロック2.2′が並設されており、第2図においては
、1対のフィンガーブロック2゜2′の両隣りのフィン
ガーブロックはその1対のみを切断して示しである。各
フィンガーブロック2.2′は鋳鉄等で作られそれぞれ
櫛歯状に配列された複数本(図示の例では6本)のフィ
ンガー3.3′を有している。各フィンガーブロック2
゜2′はその基端部2a、 2a’ において橋梁の橋
げた等の構造物4.4′に固定され、かつフィンガーブ
ロック2の各フィンガー3が対をなすフィンガーブロッ
ク2′のフィンガー間隙5′内に位置し、フィンガーブ
ロック2′の各フィンガー3′はフィンガーブロック2
のフィンガー間隙5内に位置するように対向して配設さ
れている。各フィンガーブロック2.2′の基端部2a
。The expansion joint 1 is provided with one or more pairs of finger blocks 2゜2'. In this embodiment, a plurality of pairs of finger blocks 2.2' are arranged in parallel, and in FIG. 2, only one pair of finger blocks on both sides of a pair of finger blocks 2.2' is cut off. This is what is shown. Each finger block 2.2' is made of cast iron or the like and has a plurality of fingers 3.3' (six in the illustrated example) arranged in a comb-teeth shape. Each finger block 2
゜2' is fixed to a structure 4.4' such as a bridge girder at its base end 2a, 2a', and each finger 3 of the finger block 2 is located within the finger gap 5' of the pair of finger blocks 2'. Each finger 3' of the finger block 2' is located at the finger block 2'.
The fingers are disposed facing each other so as to be located within the finger gaps 5 of the fingers. Proximal end 2a of each finger block 2.2'
.
2a’ には多数のボルト穴8,8′が千鳥状に穿設さ
れている。A large number of bolt holes 8, 8' are drilled in a staggered manner in 2a'.
各フィンガーブロック2.2′の適宜のフィンガー3.
3’(図示の例ではそれぞれ両端のフィンガー3.3’
)の適宜箇所(図示の例では両端の各フィンガー3.
3′につき2カ所)には後述の板状体の係止部材を構成
する角枠状の金属製スリーブ6.6′がフィンガー3.
3′に対し摺動自在に装着されている。スリーブ6.6
′の頂壁にはネジ穴6a、6a’ (第3図)が形成
されている。The appropriate finger 3. of each finger block 2.2'.
3' (in the illustrated example, fingers 3 and 3' at both ends, respectively)
) at appropriate locations (in the example shown, each finger 3. at both ends).
Square frame-shaped metal sleeves 6.6', which constitute the locking members of the plate-shaped body described later, are attached to the fingers 3.3' (two places per finger 3').
3' so as to be slidable. Sleeve 6.6
Screw holes 6a, 6a' (FIG. 3) are formed in the top wall of '.
板状体7はゴム・合成樹脂等の弾性体よりなり、図示の
例では1枚の板状体7が1対のフィンガーブロック2,
2′の頂面全体を覆うようにして両フィンガーブロック
2,2′に跨るように載置されている。板状体7は伸縮
が可能なように波板状に形成されている。フィンガーの
長子方向における該板状体7の端部7a、7a’ には
フィンガーブロック2.2′の千鳥状のボルト穴8.8
′に対応する位置にボルト穴7b、7b’ が穿設され
ている。フィンガーブロック2,2′とその上に載置さ
れた板状体7はボルト穴7b、7b’ 、8゜8′に挿
通した固定用ボルト9.9′によって構造物4,4′に
固定されている。なお12は構造物4′上に配置された
支持梁である。The plate-like body 7 is made of an elastic body such as rubber or synthetic resin, and in the illustrated example, one plate-like body 7 is connected to a pair of finger blocks 2,
It is placed so as to straddle both finger blocks 2, 2' so as to cover the entire top surface of finger blocks 2'. The plate-like body 7 is formed into a corrugated plate shape so that it can be expanded and contracted. Staggered bolt holes 8.8 of the finger block 2.2' are located at the ends 7a, 7a' of the plate-like body 7 in the longitudinal direction of the fingers.
Bolt holes 7b, 7b' are drilled at positions corresponding to '. The finger blocks 2, 2' and the plate-shaped body 7 placed thereon are fixed to the structures 4, 4' by fixing bolts 9, 9' inserted through bolt holes 7b, 7b', 8°8'. ing. Note that 12 is a support beam placed on the structure 4'.
板状体7の前記カラー6.6′に対応する位置には、フ
ィンガーの長子方向と交差する方向に金属・合成樹脂等
の剛体からなる固定板10.10′が埋込まれている。A fixing plate 10.10' made of a rigid body such as metal or synthetic resin is embedded in the plate-like body 7 at a position corresponding to the collar 6.6' in a direction intersecting the longitudinal direction of the finger.
第3図に拡大して示すように固定板10.10’のカラ
ー6.6′のネジ穴5a、5a’ に対応する位置には
ネジ穴10a。As shown in an enlarged view in FIG. 3, screw holes 10a are provided at positions corresponding to the screw holes 5a, 5a' of the collar 6.6' of the fixing plate 10.10'.
10a′が形成されており、また板状体7にはネジ穴6
a、6a’ に合致するボルト穴7c、7c′が穿設さ
れている。これら板状体7のボルト穴7c、7c’ 、
固定板10.10’のネジ穴10a、10a’ 、カラ
ー6.6′のネジ穴6a。10a' is formed, and a screw hole 6 is formed in the plate-like body 7.
Bolt holes 7c and 7c' matching holes a and 6a' are drilled. These bolt holes 7c, 7c' of the plate-like body 7,
Screw holes 10a, 10a' on fixing plate 10.10', screw hole 6a on collar 6.6'.
6a’ を介してボルト11.11’ をネジ込むこと
により板状体7はカラー6.6′に連結、固定されてい
る。The plate body 7 is connected and fixed to the collar 6.6' by screwing in the bolts 11.11' through the bolts 6a'.
次に上記実施例の動作について説明する。Next, the operation of the above embodiment will be explained.
気温の変動や地震等により橋梁の目地間隔が伸縮すると
、対向するフィンガーブロック2.2′は各フィンガー
3,3′が対向するフィンガーブロックのフィンガー間
隔5,5′内において進入または後退するようにして相
互に相対運動を行う。When the joint spacing of the bridge expands or contracts due to changes in temperature, earthquakes, etc., the opposing finger blocks 2, 2' are configured so that each finger 3, 3' moves in or out within the finger spacing 5, 5' of the opposing finger blocks. and move relative to each other.
この時板状体7は目地間隔の伸縮に伴って伸縮しようと
するが、板状体の伸縮によって吸収されない伸長力、圧
縮力はカラー6.6′に作用してカラー6.6′がフィ
ンガー3,3′に沿って摺動し、この伸長力、圧縮力が
板状体7の伸縮によって最終的に吸収された時カラー6
.6′は摺動を終止する。したがって橋梁の目地間隔が
縮少する場合にはカラー6.6′はそれぞれフィンガー
ブロック2,2′の基端部2a、 2a’側に摺動し、
板状体7はフィンガーブロック2,2′に密着したま)
目地間隔の縮少にスムーズに追随して圧縮される。At this time, the plate-like body 7 tries to expand and contract as the joint spacing expands and contracts, but the stretching and compressive forces that are not absorbed by the expansion and contraction of the plate-like body act on the collar 6.6', causing the collar 6.6' to 3 and 3', and when this elongation force and compression force are finally absorbed by the expansion and contraction of the plate-like body 7, the collar 6
.. 6' ends the sliding. Therefore, when the joint spacing of the bridge decreases, the collars 6 and 6' slide toward the base ends 2a and 2a' of the finger blocks 2 and 2', respectively.
The plate-shaped body 7 is in close contact with the finger blocks 2, 2')
Compression follows smoothly as the joint spacing decreases.
板状体7中にはその全部または一部特に固定部において
補強布、単繊維等の補強材を入れてもよい。また上記実
施例においては板状体7は波板状に形成されているが、
板状体の形状は図示のものに限らず、車輌の通行上障害
とならず目地間隔の伸縮に追随して伸縮可能であればど
のような形状のものでもよい。板状体7は上記実施例に
おいては1対のフィンガーブロック2,2′ごとに1枚
ずつ配設されているが、これに限らず、1対のフィンガ
ーブロック2.2′ごとに複数枚を並設するか、あるい
は1枚の板状体7で複数対のフィンガーブロック2,2
′をカバーするようにしてもよい。また板状体7の端部
は図示の固定方法に限らず、フィンガーブロック2,2
′か構造物4゜4′のいずれかに固定されていればよい
。またフィンガーブロック等に固定される板状体7の端
部7a、7a’ には、第6図に示すように、板状体7
a、7a’のボルト穴7b、7b: と同心のボルト穴
14a、14a’ が形成されたL字鋼よりなる補強材
14.14’を埋設してもよい。A reinforcing material such as a reinforcing cloth or a single fiber may be inserted into the plate-shaped body 7 in whole or in part, especially in the fixed portion. Further, in the above embodiment, the plate-like body 7 is formed in the shape of a corrugated plate, but
The shape of the plate-like body is not limited to that shown in the drawings, but may be of any shape as long as it does not pose an obstacle to vehicle passage and can expand and contract according to the expansion and contraction of the joint spacing. In the above embodiment, one plate-shaped body 7 is disposed for each pair of finger blocks 2, 2', but the present invention is not limited to this, and a plurality of plate-shaped bodies 7 may be disposed for each pair of finger blocks 2, 2'. A plurality of pairs of finger blocks 2, 2 can be arranged in parallel or in one plate-like body 7.
′ may be covered. Furthermore, the end portion of the plate-like body 7 is not limited to the illustrated fixing method, and the finger blocks 2, 2
' or the structure 4°4'. Furthermore, as shown in FIG.
A reinforcing member 14.14' made of L-shaped steel may be buried with bolt holes 14a, 14a' concentric with bolt holes 7b, 7b: a, 7a'.
板状体7をカラー6.6′に連結するための固定板10
.10’ は上記実施例においては、板状体7を横断し
て連続的に埋設されているが、これに限らずたとえば各
カラー6.6′に対応する位置にのみ個別に埋設するよ
うにしてもよい。固定板10.10’ は上記実施例に
おいては板状体7の底部附近に埋込まれているが、固定
板10゜10′の配設位置はこれに限るものではなく、
たとえば第4図に示すように、板状体7に満76゜7d
’ を形成しこの?Ill!7d、7d’ に固定板1
0(10’)を嵌合するようにしてもよいし、あるいは
板状体7の谷部の頂面7e、7e’ (第4図)に固
定板10.10’を載置してもよい。また第7図に示す
ように、板状体7の山部7f、7f’を肉厚に形成し、
この山部7f、7f’ にボルト穴7c、7c’ とそ
の下部に連通ずる凹所70゜7g′とを形成し、凹所7
g、7Q’ の頂面にネジ穴ioa、ioa’を有する
固定板10゜10′を焼付【プ加工により固定するよう
にしても4′1 ラー
よい。この凹所7g、7Q’内に=#=プロ。Fixing plate 10 for connecting plate-like body 7 to collar 6.6'
.. In the above embodiment, the collars 10' are buried continuously across the plate-like body 7, but the collars 10' are not limited to this, but may be buried individually only at positions corresponding to each collar 6 and 6', for example. Good too. Although the fixing plates 10.10' are embedded near the bottom of the plate-like body 7 in the above embodiment, the position of the fixing plates 10.10' is not limited to this.
For example, as shown in FIG.
' Form this? Ill! Fixed plate 1 on 7d, 7d'
0 (10'), or fixing plates 10 and 10' may be placed on the top surfaces 7e and 7e' (FIG. 4) of the valleys of the plate-like body 7. . Further, as shown in FIG. 7, the peaks 7f and 7f' of the plate-shaped body 7 are formed thickly,
Bolt holes 7c, 7c' and a recess 70°7g' communicating with the lower part of the bolt holes 7c, 7c' are formed in these peaks 7f, 7f'.
It is also possible to fix fixing plates 10°10' having screw holes ioa and ioa' on the top surfaces of g and 7Q' by baking. Inside this recess 7g, 7Q'=#=pro.
6′の頂壁部を嵌合し、ボルト11.11’ により板
状体7をフィンガー3,3′に固定する。なお15はボ
ルト11.11’の頭部を覆うゴムキャップである。6' are fitted, and the plate-shaped body 7 is fixed to the fingers 3, 3' with bolts 11 and 11'. Note that 15 is a rubber cap that covers the head of the bolt 11.11'.
さらに、橋梁の目地間隔が非常に大きい場合は、第8図
に示すように、板状体を長手方向に2枚の部分7A、7
B(またはそれ以上の部分でもよい)に分割し、各板状
体部分7A、7Bの突合せ側端部7Aa、7Baのカラ
ー6.6′に対応する部分に凹部7Ab、7Bbを形成
し、この凹所7Ab、7Bbにカラー6.6′の頂壁部
を嵌合せしめ、第7図と同様な方法で各板状体部分7A
。Furthermore, if the joint spacing of the bridge is very large, as shown in FIG.
B (or more parts may be used), and recesses 7Ab and 7Bb are formed in the portions corresponding to the collars 6.6' of the abutting side ends 7Aa and 7Ba of each plate-shaped body portion 7A and 7B, respectively. Fit the top wall portion of the collar 6.6' into the recesses 7Ab and 7Bb, and remove each plate portion 7A in the same manner as shown in FIG.
.
7Bをカラー6.6′にそれぞれ固定するようにしても
よい。このようにすれば板状体部分7A。7B may be fixed to the collars 6, 6', respectively. In this way, the plate-shaped body portion 7A.
7Bは、カラー6.6′の部分ではカラー6゜6′の突
起部6b、6b’をはさんで、またその他の部分では直
接その端縁同志を突き合せて、カラー6.6′を介して
相互に連結される。また板状体部分7A、7Bは第9図
に示すように各端部7Aa、7Baに対応する凹部を形
成し1.各端部7Aa、7Baをこの対応する凹部に嵌
め込んで重ね合せるようにして連結してもよい。なお、
第8図および第9図において、第7図と同一または類似
の構成部分は第7図と同一符号をもって示し、その詳細
な説明を省略する。このように板状体を複数の部分に分
割して連結するようにすれば、大型の板状体を必要とす
る場合に分割して成形、運搬、施工を行うことができる
ので極めて便利である。7B is inserted through the collar 6.6' by sandwiching the protrusions 6b and 6b' of the collar 6°6' in the collar 6.6' part, and by directly abutting their edges against each other in other parts. and are interconnected. In addition, the plate-shaped body portions 7A and 7B form recesses corresponding to the respective ends 7Aa and 7Ba as shown in FIG. 9.1. The ends 7Aa and 7Ba may be connected by fitting into the corresponding recesses and overlapping each other. In addition,
In FIGS. 8 and 9, components that are the same or similar to those in FIG. 7 are indicated by the same reference numerals as in FIG. 7, and detailed explanation thereof will be omitted. Dividing a plate-like body into multiple parts and connecting them together in this way is extremely convenient because when a large-sized plate-like body is required, it can be divided into parts for molding, transportation, and construction. .
フィンガー3,3′に摺動自在に装着される係止部材と
しては、上記実施例に示すようなカラーはフィンガーに
対しなんらの加工を要せず、極めて簡単な構成でありな
がら確実な摺動と板状体の強固な連結が可能であるので
もつとも好ましいものであるが、係止部材はこれに限ら
れるものではない。第5図は係止部材の一変更例を示す
。この変更例においては、係止部材は断面「コ」の字形
の部材13として形成されており、この部材13の両側
壁13aの内側には1対のローラ13bが取付けられて
おり頂壁には板状体7を取付けるためのボルト用のネジ
穴13cが形成されている。As a locking member that is slidably attached to the fingers 3, 3', the collar shown in the above embodiment does not require any processing on the fingers, and has an extremely simple structure, yet ensures reliable sliding. This is particularly preferable because it allows for a strong connection between the plate-shaped body and the plate-like body, but the locking member is not limited to this. FIG. 5 shows a modification of the locking member. In this modified example, the locking member is formed as a member 13 having a U-shaped cross section, and a pair of rollers 13b are attached to the inner sides of both side walls 13a of this member 13, and the top wall is provided with a pair of rollers 13b. A screw hole 13c for a bolt for attaching the plate-shaped body 7 is formed.
一方フィンガー3.3′の両側にはこれらのローラ13
bが係合しうる長溝3a、3a’が形成されている。ロ
ーラ13bをフィンガー3,3′の長溝3a、3a’
に嵌め込むようにして部材13をフィンガー3.3′の
適宜の箇所に装着し、あとは上記実施例と同様の手段で
板状体7を部材13に連結すればよい。係止部材として
はこの他種々の変形が可能であり、要はフィンガー3゜
3′に対し摺動自在に装着されかつ板状体7を連結する
ことが可能な手段であればよい。On the other hand, these rollers 13 are located on both sides of the finger 3.3'.
Long grooves 3a and 3a' that can be engaged with are formed. The roller 13b is connected to the long grooves 3a and 3a' of the fingers 3 and 3'.
The member 13 is fitted onto the finger 3.3' at an appropriate location, and the plate-shaped body 7 is then connected to the member 13 by the same means as in the above embodiment. The locking member may be modified in various other ways, as long as it is slidably attached to the fingers 3 and 3' and is capable of connecting the plate-shaped body 7.
板状体7上を大型の車輌が通行する際に車輌のタイヤと
板状体7との間の摩擦力により板状体7が車輌の進行方
向にフィンガー3,3′上をすべり板状体7に局部的変
形が生じると、板状体7の破損等不測の事態が生じるお
それがある。そこでこのような事態の発生を防止するた
め、板状体7の底面およびフィンガー3.3′の頂面の
いずれか一方に幅方向の凸条を多数並設し、他方にこの
凸条が嵌合する横溝を多数並設するか、あるいは一方に
多数の小突起を形成し他方にこれらの小突起が嵌合する
凹部を形成する等板状体7とフィンガー3.3′との間
のすべりを防止する手段、を設けるようにしてもよい。When a large vehicle passes over the plate-like body 7, the plate-like body 7 slides on the fingers 3 and 3' in the direction of travel of the vehicle due to the frictional force between the tires of the vehicle and the plate-like body 7, and the plate-like body If local deformation occurs in the plate member 7, unexpected situations such as damage to the plate member 7 may occur. Therefore, in order to prevent such a situation from occurring, a large number of protrusions in the width direction are provided in parallel on either the bottom surface of the plate-shaped body 7 and the top surface of the fingers 3.3', and these protrusions are fitted onto the other side. Sliding between the finger 3.3' and the plate-like body 7 in which a large number of matching lateral grooves are arranged in parallel, or a large number of small protrusions are formed on one side and a recess into which these small protrusions fit is formed on the other side. A means for preventing this may be provided.
このようなすべり防止手段は車輌が通行する際には有効
に機能するが気温変化等による目地間隔の伸縮に伴い係
止部材に連結した板状体7がフィンガー3.3′上を摺
動する際には上からの荷重はかかっていないのでこのよ
うな摺動を妨げることはない。Although such a slip prevention means functions effectively when a vehicle passes, the plate-shaped body 7 connected to the locking member slides on the finger 3.3' as the joint spacing expands and contracts due to changes in temperature, etc. Since no load is applied from above, this sliding movement is not hindered.
(発明の効果〕
以上述べたように、本発明によれば、フィンガーの適宜
の箇所に摺動自在に装着した係止部材にゴム・合成樹脂
等の弾性体よりなる板状体を連結したので、橋梁の目地
間隔が狭まった時板状体の収縮によって圧縮力が吸収さ
れるまで係止部材がフィンガーに沿って摺動し、板状体
はフィンガーに密着したま)目地間隔の縮少に追随して
圧縮され、フィンガーから浮き上ることがない。したが
って車輌の通行上安全であり、板状体が破損するおそれ
もなく、吊り橋等目地間隔の伸縮が大きい橋梁の継手と
して特に有効である。(Effects of the Invention) As described above, according to the present invention, a plate-shaped body made of an elastic material such as rubber or synthetic resin is connected to a locking member slidably attached to an appropriate location of the finger. When the joint spacing of a bridge narrows, the locking member slides along the fingers until the compressive force is absorbed by the contraction of the plate, and the plate remains in close contact with the fingers). It follows and is compressed and does not lift up from the fingers. Therefore, it is safe for vehicles to pass through, there is no risk of damage to the plate-like body, and it is particularly effective as a joint for bridges such as suspension bridges where the joint spacing is large in expansion and contraction.
添付図面において、第1図は本発明にかかる伸縮継手の
1実施例を示す側面図、第2図は板状体をとり除いて示
す上記実施例の平面図、第3図は係止部材に板状体を連
結した部分をフィンガーの長手方向の断面で示す拡大部
分断面図、第4図は固定板の配設位置の変更例を示す部
分断面図、第5図は係止部材の変更例を示す部分斜視図
、第6図は板状体の両端固定部の変更例を示す拡大断面
図、第7図はXと板状体との連結部の変更例を示す拡大
部分断面図、第8図および第9図は板状体を長手方向に
2分割とした変更例を示す拡大部分断面図である。
2.2′・・・フィンガーブロック、3,3′・・・フ
ィンガー、4.4′・・・構造物、5.5′フインガ一
間隙、6,6′・・・係止部材、7・・・板状体、10
・・・固定板。
出願人 西武ポリマ化成株式会社
7 7e(7e’)
7d(7d’)
手続ネrIff正書(方式)
昭和60年8月 28日In the accompanying drawings, Fig. 1 is a side view showing one embodiment of the expansion joint according to the present invention, Fig. 2 is a plan view of the above embodiment with the plate-shaped body removed, and Fig. 3 is a side view showing one embodiment of the expansion joint according to the present invention. An enlarged partial sectional view showing a section where the plate-like bodies are connected in the longitudinal direction of the fingers, FIG. 4 is a partial sectional view showing an example of changing the arrangement position of the fixing plate, and FIG. 5 is an example of changing the locking member. FIG. 6 is an enlarged sectional view showing a modification of the fixing portions at both ends of the plate-like body, and FIG. 7 is an enlarged partial sectional view showing a modification of the connecting portion between X and the plate-like body. 8 and 9 are enlarged partial cross-sectional views showing a modified example in which the plate-like body is divided into two in the longitudinal direction. 2.2'...Finger block, 3,3'...Finger, 4.4'...Structure, 5.5' finger gap, 6,6'...Locking member, 7.・Plate body, 10
...Fixed plate. Applicant: Seibu Polymer Kasei Co., Ltd. 7 7e (7e') 7d (7d') Procedure nerIff official document (method) August 28, 1985
Claims (1)
ーブロックを、その各基部側端部がそれぞれ橋梁等の構
造物に固定され、かつ各フィンガーブロックの各フィン
ガーが対をなすフィンガーブロックのフィンガー間隙に
位置するように対向して配設し、各フィンガーブロック
対に跨るようにしてゴム・合成樹脂等の弾性体よりなる
板状体を該フィンガーブロック対上に載置してフィンガ
ーの長手方向における該板状体の端部を該フィンガーブ
ロックまたは該構造物に固定した橋梁用継手において、
該フィンガーの適宜の箇所に摺動自在に装着した係止部
材に該板状体を連結したことを特徴とする橋梁用伸縮継
手。A finger gap between one or more pairs of finger blocks having a plurality of comb-like fingers, each of which has its base side end fixed to a structure such as a bridge, and each finger of each finger block forms a pair. A plate-shaped body made of an elastic material such as rubber or synthetic resin is placed on top of each pair of finger blocks so as to straddle each pair of finger blocks. In a bridge joint in which an end of the plate-like body is fixed to the finger block or the structure,
An expansion joint for a bridge, characterized in that the plate-shaped body is connected to a locking member slidably attached to an appropriate location of the finger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14797385A JPS6210306A (en) | 1985-07-05 | 1985-07-05 | Extension joint for bridge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14797385A JPS6210306A (en) | 1985-07-05 | 1985-07-05 | Extension joint for bridge |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6210306A true JPS6210306A (en) | 1987-01-19 |
JPH033003B2 JPH033003B2 (en) | 1991-01-17 |
Family
ID=15442287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14797385A Granted JPS6210306A (en) | 1985-07-05 | 1985-07-05 | Extension joint for bridge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6210306A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007231710A (en) * | 2006-02-27 | 2007-09-13 | Takumi Matsumoto | Expansion device |
-
1985
- 1985-07-05 JP JP14797385A patent/JPS6210306A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007231710A (en) * | 2006-02-27 | 2007-09-13 | Takumi Matsumoto | Expansion device |
Also Published As
Publication number | Publication date |
---|---|
JPH033003B2 (en) | 1991-01-17 |
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