JPH0349124Y2 - - Google Patents
Info
- Publication number
- JPH0349124Y2 JPH0349124Y2 JP3129686U JP3129686U JPH0349124Y2 JP H0349124 Y2 JPH0349124 Y2 JP H0349124Y2 JP 3129686 U JP3129686 U JP 3129686U JP 3129686 U JP3129686 U JP 3129686U JP H0349124 Y2 JPH0349124 Y2 JP H0349124Y2
- Authority
- JP
- Japan
- Prior art keywords
- bridge
- support member
- peripheral wall
- support
- support plate
- 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
Links
- 230000002093 peripheral effect Effects 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 238000009415 formwork Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Description
【考案の詳細な説明】
この考案は、道路橋や鉄道橋等の橋梁を弾性的
に支承する装置に関するものである。[Detailed description of the invention] This invention relates to a device for elastically supporting bridges such as road bridges and railway bridges.
従来、橋梁弾性支承装置としては、実公昭57−
26893号公報により公表されているように、箱状
の金属製下部支承部材内に、上部金属板と中間金
属板と下部金属板とそれらの間に一体に介在され
たゴム層とからなるゴム沓を収容し、前記上部金
属板の上側部分を下部支承部材における周壁の上
面よりも突出させ、その周壁の外周にゴム製緩衝
材を嵌設し、箱状の金属製上部支承部材における
上部支承板を前記上部金属板に載置すると共に、
上部支承部材における周壁を前記緩衝材の外面に
近接するように配置した構造のものが知られてい
る。
Conventionally, as a bridge elastic bearing device,
As disclosed in Publication No. 26893, a rubber shoe consisting of an upper metal plate, an intermediate metal plate, a lower metal plate, and a rubber layer interposed integrally between them is installed in a box-shaped metal lower support member. The upper part of the upper metal plate is made to protrude beyond the upper surface of the peripheral wall of the lower support member, and a rubber cushioning material is fitted around the outer periphery of the peripheral wall, and the upper support plate of the box-shaped metal upper support member is is placed on the upper metal plate, and
A structure in which the peripheral wall of the upper support member is arranged close to the outer surface of the buffer material is known.
しかるに、前記従来の橋梁弾性支承装置の場合
は、ゴム沓におけるゴム層の周面と下部支承部材
における周壁の内面との間の間隙巾が比較的小さ
いので、弾性支承装置に作用する鉛直荷重が或る
程度大きくなると、ゴム層の膨出周面が下部支承
部材における周壁に接触し、大荷重が作用したと
き、その周壁によりゴム層の圧縮弾性変形が阻害
されるという問題があり、また橋梁の撓みにより
上部支承部材が下部支承部材に対し傾斜（回転）
するとき、上部支承部材における周壁の内側下縁
部が緩衝材に突き当たるので、その傾斜（回転）
動作が阻害され、かつ前記周壁の内側下縁部によ
り緩衝材の一部が強圧されるので、緩衝材が早期
に損傷を受けるという問題がある。
However, in the case of the conventional bridge elastic bearing device, since the gap width between the peripheral surface of the rubber layer in the rubber shoe and the inner surface of the peripheral wall in the lower support member is relatively small, the vertical load acting on the elastic bearing device is If the size increases to a certain extent, the bulging peripheral surface of the rubber layer will come into contact with the peripheral wall of the lower support member, and when a large load is applied, the compressive elastic deformation of the rubber layer will be inhibited by the peripheral wall. The upper support member tilts (rotates) relative to the lower support member due to the deflection of
When the lower inner edge of the peripheral wall of the upper support member hits the cushioning material, its inclination (rotation)
Since the movement is hindered and a portion of the cushioning material is strongly pressed by the inner lower edge of the peripheral wall, there is a problem that the cushioning material is early damaged.
この考案は前述の問題を有利に解決できる橋梁
弾性支承装置を提供することを目的とするもので
あつて、この考案の要旨とするところは、支承台
１の上面に凹部２が設けられると共にその支承台
１の周囲に下部フランジ３が連設されて金属製下
部支承部材４が構成され、支承台１の全周を囲む
周壁５の上部に支承板６および上部フランジ７が
連設されて箱状の金属製上部支承部材８が構成さ
れ、前記支承台１の上面の凹部２にゴム沓９の下
部が嵌入されると共に、そのゴム沓９の上面に前
記支承板６が載置され、前記支承台１における橋
梁長手方向の側面１０およびその側面１０に対向
する周壁５の内面１１のうちの一方に、橋梁巾方
向に延長する突条１２が設けられ、その突条１２
と前記側面１０および内面１１のうちの他方との
間に間隙が設けられていることを特徴とする橋梁
弾性支承装置にある。
The purpose of this invention is to provide a bridge elastic bearing device that can advantageously solve the above-mentioned problems. A lower flange 3 is arranged in series around the support base 1 to form a metal lower support member 4, and a support plate 6 and an upper flange 7 are arranged in series on the upper part of a peripheral wall 5 surrounding the entire circumference of the support base 1 to form a box. The lower part of the rubber shoe 9 is fitted into the recess 2 on the upper surface of the support base 1, and the support plate 6 is placed on the upper surface of the rubber shoe 9. A protrusion 12 extending in the bridge width direction is provided on one of the side surface 10 of the support base 1 in the bridge longitudinal direction and the inner surface 11 of the peripheral wall 5 opposite to the side surface 10.
The bridge elastic bearing device is characterized in that a gap is provided between the side surface 10 and the other of the side surface 10 and the inner surface 11.
次にこの考案を図示の例によつて詳細に説明す
る。
Next, this invention will be explained in detail using illustrated examples.
第１図ないし第４図はこの考案を橋梁の固定弾
性支承装置に実施した第１実施例を示すものであ
つて、矩形または正方形の横断面を有する支承台
１の上面に、平坦な底面を有する矩形または正方
形の浅い凹部２が設けられ、かつその支承台１の
下部の全周に下部フランジ３が連設されて、金属
製例えば鋼製の下部支承部材４が構成され、下部
金属板１３と上部金属板１４とそれらの間に介在
されて一体に固着されたゴム層１５とからなるゴ
ム沓９における前記下部金属板１３は、支承台１
の凹部２に嵌入され、さらに支承台１の全周を囲
む矩形または正方形の周壁５の上部に水平な支承
板６および上部フランジ７が連設されて、箱状の
金属製例えば鋼製の上部支承部材８が構成され、
またゴム沓９の上面に上部支承部材８の支承板６
が載置されると共に、上部支承部材８の周壁５の
下面と下部フランジ３の上面との間に間隙D1が
設けられている。 Figures 1 to 4 show a first embodiment in which this invention is applied to a fixed elastic bearing device for a bridge, in which a flat bottom surface is attached to the top surface of a support base 1 having a rectangular or square cross section. A lower support member 4 made of metal, for example steel, is constructed by providing a rectangular or square shallow recess 2 and having a lower flange 3 connected to the entire circumference of the lower part of the support base 1. The lower metal plate 13 of the rubber shoe 9 is composed of the upper metal plate 14 and the rubber layer 15 interposed between them and fixed together.
A horizontal support plate 6 and an upper flange 7 are connected to the upper part of a rectangular or square peripheral wall 5 that surrounds the entire circumference of the support base 1, and a box-shaped upper part made of metal, for example, steel. A support member 8 is configured,
Also, the support plate 6 of the upper support member 8 is attached to the upper surface of the rubber shoe 9.
is placed thereon, and a gap D 1 is provided between the lower surface of the peripheral wall 5 of the upper support member 8 and the upper surface of the lower flange 3 .
前記支承台１における橋梁長手方向の両側の側
面１０に、その側面１０の上縁部と周壁５の下縁
部との中間レベルにおいて、橋梁巾方向に延長す
る円弧状断面の突条１２が設けられ、その突条１
２と周壁５の内面との間に間隙D2が設けられて
いる。 On both sides 10 of the support base 1 in the longitudinal direction of the bridge, a protrusion 12 having an arcuate cross section extending in the bridge width direction is provided at an intermediate level between the upper edge of the side 10 and the lower edge of the peripheral wall 5. and its protrusion 1
2 and the inner surface of the peripheral wall 5 is provided with a gap D 2 .
前記下部フランジ３における橋梁長手方向の両
側に、複数の垂直なガイドロツド１６が橋梁巾方
向に間隔をおいて配置され、各ガイドロツド１６
の下端部は下部フランジ３に固定され、かつ上部
フランジ７における橋梁長手方向の両側には、橋
梁長手方向に延長する複数のガイド用長孔１７が
橋梁巾方向に間隔をおいて設けられ、その長孔１
７に前記ガイドロツド１６の上端部が挿入され、
そのガイドロツド１６と長孔１７における橋梁長
手方向の両端部との間には間隙が設けられ、橋梁
の撓みにより上部支承部材８が下部支承部材４に
対し傾斜するとき、前記ガイドロツド１６および
ガイド用長孔１７によりガイドされて、上部支承
部材８が所定の橋梁巾方向位置でスムーズに傾斜
移動する。 A plurality of vertical guide rods 16 are arranged at intervals in the bridge width direction on both sides of the lower flange 3 in the bridge longitudinal direction, and each guide rod 16
The lower end portion is fixed to the lower flange 3, and on both sides of the upper flange 7 in the longitudinal direction of the bridge, a plurality of elongated guide holes 17 extending in the longitudinal direction of the bridge are provided at intervals in the bridge width direction. Long hole 1
The upper end of the guide rod 16 is inserted into 7,
A gap is provided between the guide rod 16 and both ends of the bridge in the longitudinal direction in the elongated hole 17. Guided by the holes 17, the upper support member 8 smoothly tilts at a predetermined position in the bridge width direction.
前記周壁５と上部フランジ７との間に補強用リ
ブ１８が一体に設けられ、かつ支承台１から突出
したゴム沓９の全周面と周壁５の内面１１との間
には間隙D3が設けられ、この間隙D3の大きさは、
ゴム層１５が最大限に圧縮されてゴム層１５の側
面が膨出しても、その膨出側面が前記内面１１に
接触しないように設定される。 A reinforcing rib 18 is integrally provided between the peripheral wall 5 and the upper flange 7, and a gap D3 is provided between the entire peripheral surface of the rubber shoe 9 protruding from the support base 1 and the inner surface 11 of the peripheral wall 5. The size of this gap D 3 is
Even if the rubber layer 15 is compressed to the maximum and the side surface of the rubber layer 15 bulges out, the bulging side surface is set so as not to come into contact with the inner surface 11.
下部支承部材４の下面に十字状の繋止用突条１
９が一体に設けられ、その下部支承部材４が橋台
または橋脚等のコンクリート製支持構造物２０の
上面に載置されると共に、前記繋止用突条１９が
支持構造物２０に埋設され、かつ支持構造物２０
に下部が埋設されているアンカボルト２１は前記
下部フランジ３に挿通され、さらにアンカボルト
２１の上部に弾性ワツシヤ２２が嵌設されると共
に固定用ナツト２３が螺合されている。 A cross-shaped locking protrusion 1 on the lower surface of the lower support member 4
9 is integrally provided, the lower support member 4 is placed on the upper surface of a concrete support structure 20 such as an abutment or a bridge pier, and the locking protrusion 19 is embedded in the support structure 20, and Support structure 20
An anchor bolt 21 whose lower part is buried is inserted into the lower flange 3, and an elastic washer 22 is fitted onto the upper part of the anchor bolt 21, and a fixing nut 23 is screwed together.
コンクリート製橋梁２４の端部に固定された鋼
製型枠兼被覆材２５の下部に前記支承板６および
上部フランジ７が当接され、アンカロツド２６の
下部は前記型枠兼被覆材２５に挿通されると共に
支承板６に設けられた雌ねじ孔２７に螺合され、
かつアンカロツド２６に螺合されたナツト２８に
より支承板６と型枠兼被覆材２５とが結合されて
いる。 The support plate 6 and the upper flange 7 are brought into contact with the lower part of the steel formwork and covering material 25 fixed to the end of the concrete bridge 24, and the lower part of the anchor rod 26 is inserted through the formwork and covering material 25. and is screwed into a female screw hole 27 provided in the support plate 6,
The support plate 6 and the formwork-cum-coating material 25 are connected by a nut 28 screwed into the anchor rod 26.
第５図および第６図はこの考案を橋梁の可動弾
性支承装置に実施した第２実施例を示すものであ
つて、支承板６および上部フランジ７の上面にわ
たつて四フツ化エチレンからなる下部滑り支承板
２９が固着され、コンクリート製橋梁２４の端部
に固定された鋼製型枠兼被覆材２５の下面に、ス
テンレス板からなる上部滑り支承板３０が溶接等
により固着されると共に、その上部滑り支承板３
０の橋梁巾方向の両側に配置された鋼製ガイド部
材３１が溶接により固着され、前記上部滑り支承
板３０が下部滑り支承板２９に載置され、かつ上
部支承部材４における上部フランジ７および下部
滑り支承板２９が両側のガイド部材３１の間に配
置されているが、その他の構成は第１実施例の場
合と同様である。 Figures 5 and 6 show a second embodiment in which this invention is applied to a movable elastic bearing device for a bridge. An upper sliding support plate 30 made of a stainless steel plate is fixed by welding or the like to the lower surface of the steel formwork and covering material 25 which is fixed to the end of the concrete bridge 24 to which the sliding support plate 29 is fixed. Upper sliding support plate 3
Steel guide members 31 arranged on both sides of the bridge width direction of 0 are fixed by welding, the upper sliding support plate 30 is placed on the lower sliding support plate 29, and the upper flange 7 and the lower part of the upper support member 4 are fixed to each other by welding. A sliding support plate 29 is disposed between the guide members 31 on both sides, but the other configurations are the same as in the first embodiment.
この考案を実施する場合、第７図に示すように
前記突条１２を多角形Ｖ字状断面にしてもよく、
また第８図に示すように、突条１２を周壁５に設
けてもよい。 When implementing this invention, the protrusion 12 may have a polygonal V-shaped cross section as shown in FIG.
Furthermore, as shown in FIG. 8, a protrusion 12 may be provided on the peripheral wall 5.
前記ゴム沓９としては、ゴム層１５の厚さ方向
の中にも金属板を一体に介在させたもの、あるい
は公知の任意構造のものを使用してもよい。また
前記ガイドロツド１６およびガイド用長孔１７を
省略してもよい。 As the rubber shoe 9, one in which a metal plate is integrally interposed in the thickness direction of the rubber layer 15, or one having any known structure may be used. Further, the guide rod 16 and the guide elongated hole 17 may be omitted.
この考案によれば、ゴム沓９における下部のみ
が支承台１の上面の凹部２に嵌合され、そのゴム
沓９におけるゴム層１５の周面と金属製上部支承
部材８における周壁５の内面との間に広巾の間隔
D3を設けることができ、そのため弾性支承装置
に強大な鉛直荷重が作用した場合でも、ゴム沓９
におけるゴム層１５を支障なく弾性的に圧縮変形
させて、弾性支承装置の弾性支承機能を発揮させ
ることができ、かつ突条１２の存在により、支承
台１における橋梁長手方向の側面と金属製上部支
承部材８における周壁５の内面１１との間に、広
い橋梁支承部傾斜許容間隔が設けられるので、弾
性支承装置における金属製上部支承部材８を橋梁
２４の撓みにより自由に傾斜させることができる
等の効果が得られる。
According to this invention, only the lower part of the rubber shoe 9 is fitted into the recess 2 on the upper surface of the support base 1, and the peripheral surface of the rubber layer 15 in the rubber shoe 9 and the inner surface of the peripheral wall 5 in the metal upper support member 8 are connected to each other. Wide spacing between
D 3 can be provided, so even if a strong vertical load is applied to the elastic bearing device, the rubber shoe 9
The rubber layer 15 can be elastically compressed and deformed without any trouble, and the elastic bearing function of the elastic bearing device can be exhibited. Since a wide bridge support inclination allowable interval is provided between the support member 8 and the inner surface 11 of the peripheral wall 5, the metal upper support member 8 in the elastic bearing device can be freely inclined due to the deflection of the bridge 24, etc. The effect of this can be obtained.
第１図ないし第４図はこの考案の第１実施例を
示すものであつて、第１図は橋梁弾性支承装置の
縦断側面図、第２図はその縦断正面図、第３図は
第１図の一部を拡大して示す縦断側面図、第４図
は橋梁弾性支承装置の一部を示す平面図である。
第５図および第６図はこの考案の第２実施例を示
すものであつて、第５図は橋梁弾性支承装置の縦
断側面図、第６図はその縦断正面図である。第７
図は支承台の側面に多角形Ｖ字状断面の突条を設
けた例を示す縦断側面図である。第８図は上部支
承部材の周壁に突条を設けた例を示す縦断側面図
である。
図において、１は支承台、２は凹部、３は下部
フランジ、４は金属製下部支承部材、５は周壁、
６は支承板、７は上部フランジ、８は金属製上部
支承部材、９はゴム沓、１０は側面、１１は内
面、１２は突条、１３は下部金属板、１４は上部
金属板、１５はゴム層、１６はガイドロツド、１
７はガイド用長孔、２０はコンクリート製支持構
造物、２１はアンカボルト、２３は固定用ナツ
ト、２４はコンクリート製橋梁、２５は鋼製型枠
兼被覆材、２６はアンカロツド、２９は下部滑り
支承板、３０は上部滑り支承板、３１は鋼製ガイ
ド部材である。
Figures 1 to 4 show the first embodiment of this invention, in which Figure 1 is a vertical side view of the bridge elastic bearing device, Figure 2 is a vertical front view thereof, and Figure 3 is the first embodiment of the bridge elastic bearing device. FIG. 4 is a longitudinal side view showing a part of the figure enlarged, and FIG. 4 is a plan view showing a part of the bridge elastic bearing device.
5 and 6 show a second embodiment of this invention, in which FIG. 5 is a longitudinal sectional side view of the bridge elastic bearing device, and FIG. 6 is a longitudinal sectional front view thereof. 7th
The figure is a longitudinal sectional side view showing an example in which a protrusion having a polygonal V-shaped cross section is provided on the side surface of the support base. FIG. 8 is a longitudinal sectional side view showing an example in which a protrusion is provided on the peripheral wall of the upper support member. In the figure, 1 is a support base, 2 is a recess, 3 is a lower flange, 4 is a metal lower support member, 5 is a peripheral wall,
6 is a support plate, 7 is an upper flange, 8 is a metal upper support member, 9 is a rubber shoe, 10 is a side surface, 11 is an inner surface, 12 is a protrusion, 13 is a lower metal plate, 14 is an upper metal plate, 15 is Rubber layer, 16 guide rod, 1
7 is a guide slot, 20 is a concrete support structure, 21 is an anchor bolt, 23 is a fixing nut, 24 is a concrete bridge, 25 is a steel formwork and covering material, 26 is an anchor rod, and 29 is a bottom slide. The support plate 30 is an upper sliding support plate, and 31 is a steel guide member.
Claims (1)
の支承台１の周囲に下部フランジ３が連設されて
金属製下部支承部材４が構成され、支承台１の全
周を囲む周壁５の上部に支承板６および上部フラ
ンジ７が連設されて箱状の金属製上部支承部材８
が構成され、前記支承台１の上面の凹部２にゴム
沓９の下部が嵌入されると共に、そのゴム沓９の
上面に前記支承板６が載置され、前記支承台１に
おける橋梁長手方向の側面１０およびその側面１
０に対向する周壁５の内面１１のうちの一方に、
橋梁巾方向に延長する突条１２が設けられ、その
突条１２と前記側面１０および内面１１のうちの
他方との間に間隙が設けられていることを特徴と
する橋梁弾性支承装置。 A recess 2 is provided on the upper surface of the support base 1, and a lower flange 3 is continuously provided around the support base 1 to constitute a metal lower support member 4. The support plate 6 and the upper flange 7 are connected to form a box-shaped metal upper support member 8.
The lower part of the rubber shoe 9 is fitted into the recess 2 on the upper surface of the support base 1, and the support plate 6 is placed on the upper surface of the rubber shoe 9. Side 10 and its side 1
On one of the inner surfaces 11 of the peripheral wall 5 facing 0,
A bridge elastic bearing device characterized in that a protrusion 12 extending in the bridge width direction is provided, and a gap is provided between the protrusion 12 and the other of the side surface 10 and the inner surface 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3129686U JPH0349124Y2 (en) | 1986-03-06 | 1986-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3129686U JPH0349124Y2 (en) | 1986-03-06 | 1986-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62143706U JPS62143706U (en) | 1987-09-10 |
| JPH0349124Y2 true JPH0349124Y2 (en) | 1991-10-21 |
Family
ID=30836898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3129686U Expired JPH0349124Y2 (en) | 1986-03-06 | 1986-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0349124Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5698920B2 (en) * | 2010-05-25 | 2015-04-08 | 株式会社ブリヂストン | Bearing structure |
| JP2012012765A (en) * | 2010-06-29 | 2012-01-19 | Kawakin Core-Tech Co Ltd | Fixed bearing |
-
1986
- 1986-03-06 JP JP3129686U patent/JPH0349124Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62143706U (en) | 1987-09-10 |
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