JP3248124B2 - Bridge expansion joints - Google Patents

Bridge expansion joints

Info

Publication number
JP3248124B2
JP3248124B2 JP06387995A JP6387995A JP3248124B2 JP 3248124 B2 JP3248124 B2 JP 3248124B2 JP 06387995 A JP06387995 A JP 06387995A JP 6387995 A JP6387995 A JP 6387995A JP 3248124 B2 JP3248124 B2 JP 3248124B2
Authority
JP
Japan
Prior art keywords
metal plate
bridge
expansion joint
bridge girder
receiving member
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
Application number
JP06387995A
Other languages
Japanese (ja)
Other versions
JPH08260408A (en
Inventor
昌宏 有田
正典 松倉
俊成 小田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitta Corp
Original Assignee
Nitta Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nitta Corp filed Critical Nitta Corp
Priority to JP06387995A priority Critical patent/JP3248124B2/en
Publication of JPH08260408A publication Critical patent/JPH08260408A/en
Application granted granted Critical
Publication of JP3248124B2 publication Critical patent/JP3248124B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】この発明は、橋梁用伸縮継手、特
に、大きな伸縮量を有する橋梁用伸縮継手に関するもの
である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion joint for a bridge, and more particularly to an expansion joint for a bridge having a large expansion and contraction amount.

【0002】[0002]

【従来の技術】この種の伸縮継手としては、例えば図1
1に示すようなものがある。
2. Description of the Related Art As this type of expansion joint, for example, FIG.
One is shown in FIG.

【0003】この伸縮継手は、図11に示すように、多
数の比較的小さな断面V溝90aを有する弾性体90
と、前記弾性体90内の上域に埋設された鋼板91a,
91aと、前記弾性体90内の下域に埋設された鋼板9
2a,92a,92bとから構成されており、橋桁H内
に埋設されたアンカーボルト93を利用して上記鋼板9
2a,92aをネジ止めするようにして対向する橋桁
H,H相互間に架設されている。
As shown in FIG. 11, this expansion joint has an elastic body 90 having a number of relatively small V-shaped grooves 90a.
And a steel plate 91a buried in an upper region in the elastic body 90.
91a and a steel plate 9 embedded in a lower region in the elastic body 90
2a, 92a, 92b, and the steel plate 9 using an anchor bolt 93 buried in the bridge girder H.
The bridge beams 2a and 92a are installed between the opposing bridge girders H and H so as to be screwed.

【0004】したがって、この伸縮継手では、雰囲気温
度の変化等により橋桁H,H相互間距離が変化した場合
でも、鋼板92bが橋桁H,H相互間に架設された状態
を支持しつつ弾性体90が伸縮することととなり、自動
車は安全に走行できる。また、この継手では断面V溝9
0aを比較的小さいものとしてあるから、通過時におい
て車両に振動が起こりにくい。
Accordingly, in this expansion joint, even when the distance between the bridge girders H, H changes due to a change in the ambient temperature or the like, the elastic member 90 supports the state in which the steel plate 92b is installed between the bridge girders H, H. Will expand and contract, and the car can run safely. In addition, this joint has a V-shaped groove 9
Since 0a is set to be relatively small, the vehicle is unlikely to vibrate when passing.

【0005】しかしながら、上記伸縮継手ではこれの中
央部分を橋桁H,Hの床部fに対してフリーにすること
が必須条件となることから、橋桁H,H相互が大きく接
近した場合には図12に示す如く継手中央部が盛り上が
って床部fから離れることとなり、また、橋桁H,Hに
段差ができた場合には図13に示すように継手の中央部
と床部fとの接触が線接触Aとなってしまう。前者の場
合には、自動車通過時に継手が床部fを叩くこととなる
から騒音が発生し、後者の場合には、騒音の発生、床部
fの欠損、伸縮継手自体の破損を招来する可能性が大き
い。
[0005] However, in the above expansion joint, it is an essential condition that the center portion of the expansion joint is free with respect to the floor f of the bridge girders H, H. Therefore, when the bridge girders H and H come close to each other, it is difficult to see the figure. As shown in FIG. 12, the central portion of the joint rises and separates from the floor portion f. When a step is formed in the bridge girders H, the contact between the central portion of the joint and the floor portion f is made as shown in FIG. Line contact A results. In the former case, noise occurs because the joint hits the floor f when passing through the vehicle, and in the latter case, noise, loss of the floor f, and damage to the expansion joint itself may be caused. Great nature.

【0006】[0006]

【発明が解決しようとする課題】そこで、この発明で
は、通過時における車両の振動が少なく、また、騒音の
発生、床部の欠損及び伸縮継手自体の破損が発生しにく
く、更に、対向する橋桁相互にできた段差を吸収するこ
とができる橋梁用伸縮継手を提供することを課題とす
る。
Therefore, according to the present invention, the vibration of the vehicle at the time of passage is small, and the generation of noise, the loss of the floor portion, and the damage of the expansion joint itself are less likely to occur.
In addition, it should be able to absorb the step created between the opposing bridge girders.
An object of the present invention is to provide an expansion joint for bridges that can be used.

【0007】[0007]

【課題を解決するための手段】(請求項1記載の発明) この発明は、橋桁H,Hの対向面側上部にそれぞれ形成
された凹み部hと、橋桁H,H相互の隙間g部分とから
成る空間域SPに設置される橋梁用伸縮継手であって、
前記空間域SPよりも幅狭であり且つ隙間gよりも幅広
の金属板1を空間域SPに設けると共に、前記金属板1
の上面全域と橋桁Hの上面とを面一に配置し、前記金属
板1と各凹み部hの床部fとの間にこれら両者に固定さ
れる態様で、複数の弾性板21と硬質板20とを交互に
積層固着して成る受け部材2を配設し、前記金属板1の
各端縁10と凹み部hの側壁との間に、それぞれ縦方向
の剛性を高める多数の芯金を有した横方向変形自在な伸
縮部材3を橋桁Hと上面面一に設けてある。
According to the present invention, there is provided a bridge girder H, a recessed portion h formed at an upper portion on the opposing surface side of the bridge girder H, and a gap g between the bridge girder H, H. An expansion joint for bridges installed in a space area SP consisting of:
A metal plate 1 narrower than the space area SP and wider than the gap g is provided in the space area SP, and the metal plate 1
The upper surface of the bridge girder H and the upper surface of the bridge girder H are arranged flush with each other, and the plurality of elastic plates 21 and the hard plate are fixed between the metal plate 1 and the floor f of each recess h. 20 are alternately stacked and fixed, and a large number of metal cores for increasing the rigidity in the vertical direction are provided between each edge 10 of the metal plate 1 and the side wall of the concave portion h. The laterally deformable elastic member 3 is provided on the upper surface of the bridge girder H.

【0008】(請求項2記載の発明) この発明は上記請求項1記載の発明に関し、金属板1の
両端縁10,10にそれぞれ垂下片11を具備させてあ
る。 (請求項3記載の発明) この発明は上記請求項1又は2記載の発明に関し、受け
部材2は橋桁Hにアンカー止めされており且つ金属板1
にボルト止めされている。 (請求項4記載の発明) この発明は、橋桁H,Hの対向面側上部にそれぞれ形成
された凹み部hと、橋桁H,H相互の隙間g部分とから
成る空間域SPに設置されるフィンガー型の橋梁用伸縮
継手であって、前記空間域SPよりも幅狭であり且つ隙
間gよりも幅広の金属板1を空間域SPに設けると共
に、前記金属板1の上面全域と橋桁Hの上面とを面一に
配置し、更に、前記金属板1の各端縁10と凹み部hの
側壁との間に金属板5,5を橋桁Hと上面面一に配置
し、前記金属板1と各凹み部hの床部fとの間にこれら
両者に固定される態様で、複数の弾性板21と硬質板2
0とを交互に積層固着して成る受け部材2を配設し、前
記金属板1と金属板5,5との対向端をフィンガー形状
にしてあると共に金属板5と床部fとの間にこれら両者
に固定される態様で複数の弾性板と硬質板とを交互に積
層固着して成る受け部材を配設してある。
(Invention of Claim 2) The present invention relates to the invention of Claim 1 described above, and has both ends 10 and 10 of the metal plate 1 provided with hanging pieces 11 respectively. (Invention of Claim 3) The present invention relates to the invention of Claim 1 or 2, wherein the receiving member 2 is anchored to the bridge girder H and the metal plate 1
It is bolted to. (Invention of Claim 4) The present invention is installed in a space area SP composed of a recessed part h formed in the upper part on the facing surface side of the bridge girders H and a gap g part between the bridge girders H and H. A finger type expansion joint for bridges, wherein a metal plate 1 narrower than the space region SP and wider than the gap g is provided in the space region SP, and the entire upper surface of the metal plate 1 and the bridge girder H The upper surface is arranged flush with the upper surface, and the metal plates 5 and 5 are arranged flush with the bridge girder H between each edge 10 of the metal plate 1 and the side wall of the recess h. Between the elastic plate 21 and the hard plate 2 in such a manner that the elastic plate 21 and the hard plate 2
0 is alternately laminated and fixed, and the opposite ends of the metal plate 1 and the metal plates 5 and 5 are formed in a finger shape, and between the metal plate 5 and the floor f. A receiving member formed by alternately laminating and fixing a plurality of elastic plates and hard plates in such a manner as to be fixed to both of them is provided.

【0009】[0009]

【作用】この発明は以下に示す作用を有する。 〔請求項1記載の発明の作用〕通常の設置状態 金属板1と床部fとを繋ぐ受け部材2は複数の弾性板2
1と硬質板20とを交互に積層固着して構成されている
から比較的大きな耐荷重性を有し、また、金属板1の各
端縁10と凹み部hの側壁との間に設けられた伸縮部材
3はそれぞれ縦方向の剛性を高める多数の芯金を有して
いるものであるから、車両通過時において、金属板1及
び伸縮部材3の上面が橋桁H,Hの上面から大きく沈む
ようなことはない。橋桁H,H相互が大きく接近した場合 金属板1は受け部材2を介して床部fと繋がれているか
ら、金属板1が橋桁Hの上面から盛り上がるようなこと
はなく、また、前記受け部材2の剪断方向の弾性変形に
より金属板1に大きな力が作用するようなこともない。
なお、橋桁H,H相互が接近したことによって生じるズ
レは伸縮部材3の縮みにより吸収される。そして、この
状態においても上記の機能を有している。橋桁H,Hに段差ができた場合 金属板1は比較的大きな面積の受け部材2で受けられる
ことになるから、床部fの欠損及び伸縮継手自体の破損
が発生しにくい。また、橋桁H,H相互に段差ができた
ことによって生じるズレは受け部材2及び伸縮部材3の
変形により吸収される。そして、この状態においても上
記の機能を有している。 〔請求項4記載の発明の作用〕通常の設置状態 受け部材2は比較的大きな耐荷重性を有しているから車
両通過時において、金属板1の上面が橋桁H,Hの上面
から大きく沈むようなことはない。したがって、車両通
過時においても金属板1,5の上面はともに橋桁H,H
の上面と略一致した状態がほぼ維持されている。橋桁H,H相互が大きく接近した場合 金属板1は受け部材2を介して床部fと繋がれた状態と
なっているから、金属板1が橋桁Hの上面から盛り上が
るようなことはなく、また、前記受け部材2の剪断方向
の弾性変形により金属板1に大きな力が作用するような
こともない。なお、橋桁H,H相互が接近したことによ
って生じる金属板1,5のズレは従来のフィンガージョ
イント同様にフィンガー部で吸収される。そして、この
状態においても上記の機能を有している。橋桁H,Hに段差ができた場合 金属板1は比較的大きな面積の受け部材2で受けられる
ことになるから、床部fの欠損及び伸縮継手自体の破損
が発生しにくい。
The present invention has the following functions. [Operation of the invention as set forth in claim 1] The receiving member 2 for connecting the metal plate 1 and the floor portion f in the normal installation state includes a plurality of elastic plates 2.
1 and the hard plate 20 are alternately laminated and fixed, so that they have a relatively large load resistance, and are provided between each edge 10 of the metal plate 1 and the side wall of the recess h. Since each of the elastic members 3 has a large number of metal cores for increasing the rigidity in the vertical direction, the upper surfaces of the metal plate 1 and the elastic members 3 sink greatly from the upper surfaces of the bridge girders H, H when passing through the vehicle. There is no such thing. When the bridge girders H and H come close to each other, the metal plate 1 is connected to the floor portion f via the receiving member 2, so that the metal plate 1 does not rise from the upper surface of the bridge girder H. A large force does not act on the metal plate 1 due to the elastic deformation of the member 2 in the shear direction.
The displacement caused by the bridge girders H approaching each other is absorbed by the contraction of the elastic member 3. And, even in this state, it has the above function. If a step is formed in the bridge girders H, H, the metal plate 1 is received by the receiving member 2 having a relatively large area, so that the floor f is not easily damaged and the expansion joint itself is not easily damaged. Further, the displacement caused by the step difference between the bridge girders H, H is absorbed by the deformation of the receiving member 2 and the elastic member 3. And, even in this state, it has the above function. [Operation of the invention according to claim 4] Since the normal installation state receiving member 2 has a relatively large load resistance, the upper surface of the metal plate 1 sinks greatly from the upper surfaces of the bridge girders H, H when passing through the vehicle. There is no such thing. Therefore, even when the vehicle passes through, the upper surfaces of the metal plates 1 and 5 are both bridge girders H and H
A state substantially coincident with the upper surface of is maintained. When the bridge girders H and H come close to each other, the metal plate 1 is connected to the floor f via the receiving member 2, so that the metal plate 1 does not rise from the upper surface of the bridge girder H. Further, a large force does not act on the metal plate 1 due to the elastic deformation of the receiving member 2 in the shearing direction. The displacement of the metal plates 1 and 5 caused by the approach of the bridge girders H and H is absorbed by the finger portions in the same manner as the conventional finger joint. And, even in this state, it has the above function. When a step is formed in the bridge girders H, H, the metal plate 1 is received by the receiving member 2 having a relatively large area, so that the floor f is not easily damaged and the expansion joint itself is not easily damaged.

【0010】[0010]

【実施例】この発明の構成を実施例として示した図面に
従って説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described with reference to the drawings shown as embodiments.

【0011】この実施例の伸縮継手は、図1に示すよう
に、橋桁H,Hの対向面側上部にそれぞれ形成された凹
み部hと、橋桁H,H相互の隙間gとから成る正面視長
方形状の空間域SPに設置されるものであり、凹み部h
の構成壁面に設けられた型枠80を介して橋桁H,Hに
取り付けられる。
As shown in FIG. 1, the expansion joint of this embodiment includes a recessed portion h formed in the upper portion of the bridge girder H on the facing surface side, and a gap g between the bridge girder H and H. It is installed in a rectangular space SP and has a recess h
Is attached to the bridge girders H, H via a formwork 80 provided on the wall surface.

【0012】上記伸縮継手Sは基本的には図2に示すよ
うに、金属板1と、受け部材2と、伸縮部材3と、音吸
収部材4と、座体5とから構成されている。
The expansion joint S is basically composed of a metal plate 1, a receiving member 2, an expansion member 3, a sound absorbing member 4, and a seat 5, as shown in FIG.

【0013】金属板1は、図1や図2に示すように、上
記空間域SPよりも幅狭で且つ隙間gよりも幅広に形成
された主体1aと、前記主体1aの両端縁10,10に
それぞれ設けられた垂下片11とを具備するもので、空
間域SPにおいて橋桁Hと上面が面一となる態様で配置
されている。また、主体1aには、図3に示すように、
後述するネジ孔26と対応する位置に座グリ部を具備す
る貫通孔12を設けてある。
As shown in FIGS. 1 and 2, the metal plate 1 has a main body 1a formed narrower than the space area SP and wider than the gap g, and both end edges 10, 10 of the main body 1a. , Respectively, and are arranged in such a manner that the upper surface thereof is flush with the bridge girder H in the space area SP. In addition, as shown in FIG.
A through hole 12 having a spot facing portion is provided at a position corresponding to a screw hole 26 described later.

【0014】受け部材2は、図3に示すように、複数の
弾性板21と硬質板20(鋼板)とを交互に積層する態
様で加硫接着すると共にその上下部に上・下取付板2
2,23を加硫接着して構成してあり、上取付板22に
は金属板1とボルト止めするためのネジ孔26等を、ア
ンカーボルトAB(図2参照)と対応する位置には取付
板22、弾性板21及び硬質板20を貫通する工具挿入
孔24を、取付板23にはアンカーボルトABの雄ネジ
部を通すための挿通孔25を、それぞれ設けてある。
As shown in FIG. 3, the receiving member 2 is vulcanized and bonded in such a manner that a plurality of elastic plates 21 and hard plates 20 (steel plates) are alternately laminated, and the upper and lower mounting plates 2
The upper mounting plate 22 is provided with screw holes 26 for bolting to the metal plate 1 at positions corresponding to the anchor bolts AB (see FIG. 2). A tool insertion hole 24 penetrating the plate 22, the elastic plate 21 and the hard plate 20, and an insertion hole 25 for passing the male screw portion of the anchor bolt AB is provided in the mounting plate 23.

【0015】伸縮部材3は、図7に示すように、上面視
菱形枠形状のゴム部材を複数連設して成るもので、前記
枠形状を構成する各縦板部分には縦方向の剛性を高める
ための芯金(図示せず)を埋設してある。なお、この伸
縮部材3の一端部は金属板1の垂下片11に、他端部は
凹み部hを構成する側壁に、それぞれ固定されている。
As shown in FIG. 7, the elastic member 3 is formed by connecting a plurality of rubber members having a rhombic frame shape in a top view, and each of the vertical plate portions forming the frame shape has a rigidity in a vertical direction. A core bar (not shown) for heightening is embedded. Note that one end of the elastic member 3 is fixed to the hanging piece 11 of the metal plate 1, and the other end is fixed to the side wall forming the recess h.

【0016】音吸収部材4は、車両通過時に生じる発生
音を吸収するためのものであり、図2に示す如く縦長の
帯状に形成されたゴムや樹脂の発泡体(外力に対して自
由に変形する)により構成されている。
The sound absorbing member 4 is for absorbing the sound generated when passing through the vehicle, and is formed of a rubber or resin foam formed in a vertically long band shape as shown in FIG. ).

【0017】座体5は、図2に示すように、厚肉の金属
板(プラスチック,ゴム等でもよい)により構成されて
おり、これの上に上記音吸収部材4や伸縮部材3が載置
される。
As shown in FIG. 2, the seat body 5 is made of a thick metal plate (which may be plastic, rubber, or the like), on which the sound absorbing member 4 and the telescopic member 3 are placed. Is done.

【0018】この実施例の橋梁用伸縮継手は上記のよう
な構成であるから、以下に示す如く機能を有する。 〔車両通過時において〕作用の欄に記載したように、金
属板1を受ける受け部材2の剛性及び、伸縮部材3の芯
金の存在により、車両通過時において、車重により金属
板1及び伸縮部材3の上面が橋桁H,Hの上面から大き
く沈むようなことはない。したがって、継手通過時にお
ける車両の振動発生の原因とはならない。 〔橋桁H,H相互が大きく接近した場合について〕図4
に示す如く、金属板1は受け部材2を介して床部fに取
り付けてあるから、前記金属板1が橋桁Hの上面から大
きく浮き上がるようなことはない。したがって、従来の
技術の欄に記載した伸縮継手の如き、車両通過時に継手
が床部fを叩くような現象は全く発生しない。また、図
4に示す如く受け部材2が弾性変形するから金属板1に
大きな力が作用するようなこともない。なお、橋桁H,
H相互が接近したことによって生じる歪みは図4や図7
に示す如き伸縮部材3の縮みにより吸収される。そし
て、上記受け部材2は剪断方向の力に対して弾性変形
し、また、音吸収部材4も変形し、更に、伸縮部材3も
横方向に変形可能であるから、橋桁H,H相互が接近す
る際に生じる強大な力が継手自体の破壊力として作用す
るようなことはない。 〔橋桁H,Hに段差ができた場合について〕図5に示す
如く、金属板1は受け部材2を介して比較的大きな面積
で床部fに受け止められることとなるから、従来の技術
の欄に記載したような騒音の発生並びに床部の欠損及び
伸縮継手自体の破損が発生しにくい。 〔橋桁H,H相互が大きく離反した場合について〕図6
に示す如く、受け部材2は剪断方向に弾性変形するが、
なお、金属板1は受け部材2により受けられた状態なっ
ているから、橋桁Hの上面から大きく沈むようなことは
ない。そして、上記受け部材2は剪断方向の力に対して
弾性変形し、また、音吸収部材4も変形し、更に、伸縮
部材3も横方向に変形可能であるから、橋桁H,H相互
が接近する際に生じる強大な力が継手自体の破壊力とし
て作用するようなことはない。
Since the bridge expansion joint of this embodiment has the above-described structure, it has the following functions. [At the time of passing the vehicle] As described in the column of action, the rigidity of the receiving member 2 for receiving the metal plate 1 and the presence of the metal core of the elastic member 3 cause the metal plate 1 and the elastic The upper surface of the member 3 does not sink greatly from the upper surfaces of the bridge girders H, H. Therefore, it does not cause vibration of the vehicle when passing through the joint. [When the bridge girders H and H come close to each other] FIG.
As shown in (1), the metal plate 1 is attached to the floor f via the receiving member 2, so that the metal plate 1 does not rise greatly from the upper surface of the bridge girder H. Therefore, such a phenomenon that the joint hits the floor portion f when passing through the vehicle, such as the expansion joint described in the section of the prior art, does not occur at all. Further, since the receiving member 2 is elastically deformed as shown in FIG. 4, a large force does not act on the metal plate 1. The bridge girder H,
The distortion caused by the close proximity of H is shown in FIGS.
Is absorbed by the contraction of the elastic member 3 as shown in FIG. The receiving member 2 is elastically deformed by the force in the shearing direction, the sound absorbing member 4 is also deformed, and the elastic member 3 is also deformable in the lateral direction. There is no possibility that the strong force generated when the joint acts as a destructive force of the joint itself. [Regarding the case where a step is formed in the bridge girders H, H] As shown in FIG. 5, the metal plate 1 is received by the floor portion f with a relatively large area via the receiving member 2, so that the column of the prior art is described. As described above, the generation of noise, the loss of the floor and the breakage of the expansion joint itself are unlikely to occur. [When the bridge girders H and H are largely separated from each other] FIG.
As shown in the figure, the receiving member 2 is elastically deformed in the shearing direction.
Since the metal plate 1 is received by the receiving member 2, it does not sink much from the upper surface of the bridge girder H. The receiving member 2 is elastically deformed by the force in the shearing direction, the sound absorbing member 4 is also deformed, and the elastic member 3 is also deformable in the lateral direction. There is no possibility that the strong force generated when the joint acts as a destructive force of the joint itself.

【0019】なお、上記実施例の伸縮部材3を、図8や
図9に示すような形態のものにかえることができる。
It should be noted that the elastic member 3 of the above embodiment can be changed to a form as shown in FIGS.

【0020】図8に示すものは、金属で構成されたI型
材30とコ字状材31(両者が芯金として機能する)と
の間を弾性を有する断面R状板材32により結合して構
成したものであり、前記I型材30及びコ字状材31が
橋桁Hの上面からはみ出さないように且つ橋桁Hの長手
方向の伸縮を吸収できるようにするため、I型材30及
びコ字状材31に設けた孔33’に軸33を遊挿する構
成が採られている。なお、この軸33の一端は金属板1
の垂下片11に設けた孔(図示せず)に遊挿されてい
る。
FIG. 8 shows a structure in which an I-shaped member 30 made of metal and a U-shaped member 31 (both function as a core metal) are connected by an R-shaped plate member 32 having elasticity. In order to prevent the I-shaped member 30 and the U-shaped member 31 from protruding from the upper surface of the bridge girder H and to be able to absorb the longitudinal expansion and contraction of the bridge girder H, the I-shaped member 30 and the U-shaped member 31 are formed. A configuration is adopted in which the shaft 33 is loosely inserted into a hole 33 ′ provided in the 31. One end of the shaft 33 is connected to the metal plate 1.
Is loosely inserted into a hole (not shown) provided in the hanging piece 11.

【0021】図9に示すものは、直立する金属板34
(芯金として機能)が埋設されたゴム製の縦部材35相
互をゴム製の断面V字状部材36で連結したものであ
る。
FIG. 9 shows an upright metal plate 34.
The rubber vertical members 35 (functioning as a core metal) are connected to each other by a rubber V-shaped member 36.

【0022】他方、図10に示す実施例はフィンガージ
ョイントであり、空間域SPよりも幅狭であり且つ隙間
gよりも幅広の金属板1を空間域SPにおいて橋桁Hと
上面面一に配置すると共に前記金属板1の各端縁10と
凹み部hの側壁との間に金属板5,5を橋桁Hと上面面
一に配置し、前記金属板1と金属板5,5との対向端を
フィンガー形状にしてある。そして、金属板1と各凹み
部hの床部fとの間にこれら両者に固定される態様で、
複数の弾性板と硬質板とを交互に積層固着して成る受け
部材2aを配設し、また、金属板5と各凹み部hの床部
fとの間にこれら両者に固定される態様で、複数の弾性
板と硬質板とを交互に積層固着して成る受け部材2bを
配設している。なお、図10中、符号60で示すものは
ウレタンフォーム、符号61で示すものは弾性シール
材、符号62で示すものは止水ゴムである。
On the other hand, the embodiment shown in FIG. 10 is a finger joint, in which a metal plate 1 narrower than the space SP and wider than the gap g is arranged flush with the bridge girder H in the space SP. At the same time, the metal plates 5 and 5 are arranged between each edge 10 of the metal plate 1 and the side wall of the recess h so as to be flush with the bridge girder H, and the opposite ends of the metal plate 1 and the metal plates 5 and 5 are opposed to each other. Has a finger shape. Then, between the metal plate 1 and the floor portion f of each recess h, the metal plate 1 is fixed to both of them,
A receiving member 2a formed by alternately laminating and fixing a plurality of elastic plates and hard plates is provided, and is fixed between the metal plate 5 and the floor portion f of each recess h by both of them. And a receiving member 2b formed by alternately stacking and fixing a plurality of elastic plates and hard plates. In FIG. 10, reference numeral 60 denotes urethane foam, reference numeral 61 denotes an elastic sealing material, and reference numeral 62 denotes a waterproof rubber.

【0023】したがって、このフィンガージョイント
は、騒音の発生、床部の欠損及び伸縮継手自体の破損が
発生しにくいものなる。
Therefore, this finger joint is less likely to generate noise, break the floor, and damage the expansion joint itself.

【0024】[0024]

【発明の効果】上記作用の欄に記載した内容から、通過
時における車両の振動が少なく、また、騒音の発生、床
部の欠損及び伸縮継手自体の破損が発生しにくく、更
に、対向する橋桁相互にできた段差を吸収することがで
きる橋梁用伸縮継手を提供できた。
From what has been described in the column of the working according to the present invention, less vibration of the vehicle at the time of passage, also, generation of noise, rather deficient and expansion joint itself damage the floor portion difficulty occurs, further
In addition, it is possible to absorb the step created between the opposing bridge girders.
We can provide an expansion joint for a bridge that can be used.

【図面の簡単な説明】[Brief description of the drawings]

【図1】この発明の実施例の橋梁用伸縮継手が設置され
る空間域を示した断面図。
FIG. 1 is a sectional view showing a space area in which a bridge expansion joint according to an embodiment of the present invention is installed.

【図2】前記橋梁用伸縮継手が空間域に設置された状態
を示す斜視図。
FIG. 2 is a perspective view showing a state where the bridge expansion joint is installed in a space area.

【図3】前記橋梁用伸縮継手を構成する受け部材及び金
属板を示す斜視図。
FIG. 3 is a perspective view showing a receiving member and a metal plate constituting the expansion joint for a bridge.

【図4】橋桁相互が接近した場合の前記橋梁用伸縮継手
の状態を示す断面図。
FIG. 4 is a cross-sectional view showing a state of the bridge expansion joint when bridge girders approach each other.

【図5】橋桁相互に段差ができた場合の前記橋梁用伸縮
継手の状態を示す断面図。
FIG. 5 is a cross-sectional view showing a state of the bridge expansion joint when a step is formed between the bridge girders.

【図6】橋桁相互が離反した場合の前記橋梁用伸縮継手
の状態を示す断面図。
FIG. 6 is a cross-sectional view showing a state of the bridge expansion joint when the bridge girders are separated from each other.

【図7】前記橋梁用伸縮継手を構成する受け部材の斜視
図。
FIG. 7 is a perspective view of a receiving member constituting the expansion joint for a bridge.

【図8】前記橋梁用伸縮継手を構成する他の態様の受け
部材の斜視図。
FIG. 8 is a perspective view of a receiving member of another embodiment constituting the expansion joint for bridges.

【図9】前記橋梁用伸縮継手を構成する他の態様の受け
部材の斜視図。
FIG. 9 is a perspective view of a receiving member of another mode constituting the expansion joint for bridges.

【図10】この発明の実施例のフィンガー型の橋梁用伸
縮継手の断面斜視図。
FIG. 10 is a sectional perspective view of a finger-type expansion joint for a bridge according to an embodiment of the present invention.

【図11】先行技術の橋梁用伸縮継手の断面図。FIG. 11 is a cross-sectional view of a prior art expansion joint for bridges.

【図12】橋桁相互が接近した場合における先行技術の
橋梁用伸縮継手の状態を示す断面図。
FIG. 12 is a sectional view showing a state of a prior art expansion joint for bridges when bridge girders approach each other.

【図13】橋桁相互に段差ができた場合における前記橋
梁用伸縮継手の状態を示す断面図。
FIG. 13 is a sectional view showing a state of the bridge expansion joint when a step is formed between the bridge girders.

【符号の説明】[Explanation of symbols]

H 橋桁 h 凹み部 g 隙間 SP 空間域 1 金属板 2 受け部材 2a 受け部材 2b 受け部材 3 伸縮部材 4 音吸収部材 5 座体 10 両端縁 11 垂下片 20 硬質板 21 弾性板 H Bridge girder h Depressed part g Gap SP Space area 1 Metal plate 2 Receiving member 2a Receiving member 2b Receiving member 3 Elastic member 4 Sound absorbing member 5 Seat 10 Both end edges 11 Hanging piece 20 Hard plate 21 Elastic plate

───────────────────────────────────────────────────── フロントページの続き (72)発明者 小田 俊成 奈良県大和郡山市池沢町172 ニッタ株 式会社 奈良工場内 (56)参考文献 特開 昭59−114305(JP,A) 実開 平5−40304(JP,U) 実公 昭58−30818(JP,Y2) ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Toshinari Oda 172 Ikezawa-cho, Yamatokoriyama-shi, Nara Pref. Nita Plant (56) References JP-A-59-114305 (JP, A) 40304 (JP, U) Jiko 58-30818 (JP, Y2)

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 橋桁(H)(H)の対向面側上部にそれ
ぞれ形成された凹み部(h)と、橋桁(H)(H)相互
の隙間(g)部分とから成る空間域(SP)に設置され
る橋梁用伸縮継手であって、前記空間域(SP)よりも
幅狭であり且つ隙間(g)よりも幅広の金属板(1)を
空間域(SP)に設けると共に、前記金属板(1)の上
面全域と橋桁(H)の上面とを面一に配置し、前記金属
板(1)の各凹み部(h)の床部(f)との間にこれら
両者に固定される態様で、複数の弾性板(21)と硬質
板(20)とを交互に積層固着して成る受け部材(2)
を配設し、前記金属板(1)の各端縁(10)と凹み部
(h)の側壁との間に、それぞれ縦方向の剛性を高める
多数の芯金を有した横方向変形自在な伸縮部材(3)を
橋桁(H)と上面面一に設けてあることを特徴とする橋
梁用伸縮継手。
1. A space area (SP) comprising a recess (h) formed at the upper part of the bridge girder (H) (H) on the facing surface side and a gap (g) between the bridge girder (H) (H). And (b) providing a metal plate (1) narrower than the space area (SP) and wider than the gap (g) in the space area (SP). The entire upper surface of the metal plate (1) and the upper surface of the bridge girder (H) are arranged flush with each other, and are fixed to the floor (f) of each recess (h) of the metal plate (1). Receiving member (2) formed by alternately stacking and fixing a plurality of elastic plates (21) and hard plates (20).
Is disposed between each edge (10) of the metal plate (1) and the side wall of the concave portion (h). An expansion joint for a bridge, characterized in that an expansion member (3) is provided flush with the bridge girder (H).
【請求項2】 金属板(1)の両端縁(10)(10)
にそれぞれ垂下片(11)を具備させてあることを特徴
とする請求項1記載の橋梁用伸縮継手。
2. Edges (10) (10) of both ends of a metal plate (1)
The expansion joint for a bridge according to claim 1, characterized in that each of the expansion joints has a hanging piece (11).
【請求項3】 受け部材(2)は橋桁(H)にアンカー
止めされており且つ金属板(1)にボルト止めされてい
ることを特徴とする請求項1又は2記載の橋梁用伸縮継
手。
3. The expansion joint for bridges according to claim 1, wherein the receiving member (2) is anchored to the bridge girder (H) and bolted to the metal plate (1).
【請求項4】 橋桁(H)(H)の対向面側上部にそれ
ぞれ形成された凹み部(h)と、橋桁(H)(H)相互
の隙間(g)部分とから成る空間域(SP)に設置され
るフィンガー型の橋梁用伸縮継手であって、前記空間域
(SP)よりも幅狭であり且つ隙間(g)よりも幅広の
金属板(1)を空間域(SP)に設けると共に、前記金
属板(1)の上面全域と橋桁(H)の上面とを面一に配
置し、更に、前記金属板(1)の各端縁(10)と凹み
部(h)の側壁との間に金属板(5)(5)を橋桁
(H)と上面面一に配置し、前記金属板(1)と各凹み
部(h)の床部(f)との間にこれら両者に固定される
態様で、複数の弾性板(21)と硬質板(20)とを交
互に積層固着して成る受け部材(2)を配設し、前記金
属板(1)と金属板(5)(5)との対向端をフィンガ
ー形状にしてあると共に金属板(5)と床部(f)との
間にこれら両者に固定される態様で複数の弾性板と硬質
板とを交互に積層固着して成る受け部材を配設してある
ことを特徴とする橋梁用伸縮継手。
4. A space area (SP) comprising a recess (h) formed on an upper portion of the bridge girder (H) (H) on the facing surface side and a gap (g) between the bridge girder (H) (H). ) Is a finger type expansion joint for a bridge, wherein a metal plate (1) narrower than the space (SP) and wider than the gap (g) is provided in the space (SP). At the same time, the entire upper surface of the metal plate (1) and the upper surface of the bridge girder (H) are arranged flush with each other, and further, each edge (10) of the metal plate (1) and the side wall of the recess (h) are formed. The metal plates (5) and (5) are arranged flush with the bridge girder (H) between the metal plates (1) and the floor (f) of each recess (h). In a fixed manner, a receiving member (2) formed by alternately laminating and fixing a plurality of elastic plates (21) and hard plates (20) is provided, and the metal plate (1) and the metal plate (5) are arranged. A) a plurality of elastic plates and a hard plate are alternately laminated between the metal plate (5) and the floor (f) so as to be fixed to the metal plate (5) and the floor (f); An expansion joint for a bridge, comprising a receiving member fixedly provided.
JP06387995A 1995-03-23 1995-03-23 Bridge expansion joints Expired - Fee Related JP3248124B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP06387995A JP3248124B2 (en) 1995-03-23 1995-03-23 Bridge expansion joints

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06387995A JP3248124B2 (en) 1995-03-23 1995-03-23 Bridge expansion joints

Publications (2)

Publication Number Publication Date
JPH08260408A JPH08260408A (en) 1996-10-08
JP3248124B2 true JP3248124B2 (en) 2002-01-21

Family

ID=13242027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP06387995A Expired - Fee Related JP3248124B2 (en) 1995-03-23 1995-03-23 Bridge expansion joints

Country Status (1)

Country Link
JP (1) JP3248124B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003294712A (en) * 2002-03-29 2003-10-15 Non-Destructive Inspection Co Ltd Inspection device and method for bridge expansion joint
AU2010201482B9 (en) * 2010-04-09 2016-11-17 Illinois Tool Works Inc. Expansion joints

Also Published As

Publication number Publication date
JPH08260408A (en) 1996-10-08

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