JP2571782Y2 - Rubber bearing with lifting prevention mechanism - Google Patents
Rubber bearing with lifting prevention mechanismInfo
- Publication number
- JP2571782Y2 JP2571782Y2 JP1993004303U JP430393U JP2571782Y2 JP 2571782 Y2 JP2571782 Y2 JP 2571782Y2 JP 1993004303 U JP1993004303 U JP 1993004303U JP 430393 U JP430393 U JP 430393U JP 2571782 Y2 JP2571782 Y2 JP 2571782Y2
- Authority
- JP
- Japan
- Prior art keywords
- rubber bearing
- rubber
- plate
- mounting plate
- displacement
- 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
Landscapes
- Bridges Or Land Bridges (AREA)
Description
【0001】イ.考案の目的 (1) 産業上の利用分野 この考案は、橋梁、特にはビル間連絡橋を支持するため
のゴム支承に関し、更に詳しくは、上部構造の水平方向
全方向への変位に対してはこれを許容し、上部構造の鉛
直方向への浮上りに対してはこれを拘束するビル間連絡
橋に使用されて好適な浮上り防止機構付きゴム支承に関
する。A. Purpose of the invention (1) Industrial application field This invention relates to a rubber bearing for supporting a bridge, particularly a bridge between buildings, and more specifically, to a displacement of a superstructure in all horizontal directions. The present invention relates to a rubber bearing with a floating prevention mechanism suitable for use in an inter-building bridge that allows this and restrains the vertical rising of the superstructure from being used.
【0002】(2) 従来の技術 従来より一般に、橋梁に使用されるゴム支承において
は、橋桁などの上部構造の傾きあるいは該傾き及び橋軸
方向の伸縮をともに許容する機能と、該上部構造に作用
する上揚力を受け止める機能が備えられている。そし
て、上部構造に作用する上揚力に対しては、一般に橋脚
などの下部構造に固定される下沓の橋軸直角方向両端に
突設された凸部に該上部構造に固定される上沓の上面に
張り出して固定されたサイドプレートあるいはサイドブ
ロックによって受け止める構造が採用されている(例え
ば実公昭59−25927号公報参照)。しかしなが
ら、ビル間連絡橋においては、相対峙するビル建造物が
個別にその固有の振動特性に基づいて振動することによ
り、該連絡橋の橋桁は橋軸方向のみならず橋軸直角方向
へ大きく変位し、更にはまた、縦振動も加わり、従来の
浮上り防止機能付き支承構造によっては対応しきれない
ものである。(2) Conventional technology Conventionally, rubber bearings used for bridges generally have a function of permitting inclination of an upper structure such as a bridge girder or expansion and contraction of the inclination and the direction of a bridge axis. A function is provided to receive the acting upward lift. For the upper lift acting on the upper structure, the lower shoe generally fixed to the lower structure such as a pier is provided with protrusions projecting from both ends in the direction perpendicular to the bridge axis of the lower shoe. A structure is adopted in which a side plate or a side block that protrudes from the upper surface and is fixed is received (for example, see Japanese Utility Model Publication No. 59-25927). However, in the bridge between buildings, the buildings facing each other vibrate individually on the basis of its own vibration characteristics, so that the bridge girder of the bridge is greatly displaced not only in the bridge axis direction but also in the direction perpendicular to the bridge axis. In addition, longitudinal vibrations are also applied, and cannot be coped with by a conventional support structure having a floating prevention function.
【0003】(3) 考案が解決しようとする問題点 本考案は上記実情に鑑みなされたものであり、水平方向
のどの変位に対しても変位を許容し、かつ、浮上り防止
機能を有効に発揮することのできるゴム支承を得ること
を目的とする。(3) Problems to be solved by the present invention The present invention has been made in view of the above circumstances, and allows displacement in any displacement in the horizontal direction, and effectively prevents the function of preventing floating. The purpose is to obtain a rubber bearing that can be used.
【0004】ロ. 考案の構成 (1) 問題点を解決するための手段 本考案の浮上り防止機構付きゴム支承は上記目的を達成
するため、次の技術的手段 (構成)を採る。すなわち、上部構造と下部構造との間
に介装され、上部構造の水平方向全方向の変位を許容す
るゴム支承であって、前記上部構造の下面には上部取付
け板が、前記下部構造の上面には下部取付け板がそれぞ
れ固定されており、前記上部及び下部取付け板間には、
中間位置において水平方向に張設され、実質的に矩形平
板状をなす剛な中間規制板を挟んで上下にゴム支承を有
するゴム支承本体が配され、前記上部取付け板の下面に
は、上に向けてあご部を有する上部係合ブロックが、前
記ゴム支承本体を挟んで当接もしくは許容間隙を存して
相対向して配されるとともに、前記あご部の上面と前記
ゴム支承本体の中間規制板との間に所定の間隔を存して
固定され、前記下部取付け板の上面には、下に向けてあ
ご部を有する下部係合ブロックが、前記ゴム支承本体を
他の側から挟んで当接もしくは許容間隙を存して相対向
して配されるとともに、前記あご部の下面と前記ゴム支
承本体の中間規制板との間に所定の間隔を存して固定さ
れてなる、ことを特徴とする。B. Configuration of the Invention (1) Means for Solving the Problems The rubber bearing with a floating prevention mechanism of the invention employs the following technical means (configuration) in order to achieve the above object. That is, a rubber bearing interposed between the upper structure and the lower structure to allow displacement of the upper structure in all directions in the horizontal direction, wherein an upper mounting plate is provided on a lower surface of the upper structure, and an upper mounting plate is provided on an upper surface of the lower structure. The lower mounting plate is fixed to each, between the upper and lower mounting plate,
At an intermediate position, a rubber bearing main body having a rubber bearing disposed vertically above and below a rigid intermediate regulating plate having a substantially rectangular flat shape and stretched in the horizontal direction is disposed, and a lower surface of the upper mounting plate is An upper engaging block having a jaw portion is disposed opposite to each other with an abutment or an allowable gap sandwiching the rubber bearing body, and an intermediate regulation between the upper surface of the jaw portion and the rubber bearing body. A lower engagement block having a downwardly extending jaw portion is fixed on the upper surface of the lower mounting plate with a predetermined gap between the rubber bearing body and the lower mounting plate. Abutting or an allowable gap, and are fixed at a predetermined interval between the lower surface of the jaw and the intermediate regulating plate of the rubber bearing body. And
【0005】(2) 作用 上部構造の傾き及び水平方向の変位は、ゴム支承本体の
積層ゴム体の変形・変位により許容される。すなわち、
上部構造の傾きに対しては、ゴム支承本体の積層ゴム体
が曲げ変形を受け、傾きに追従するが、ゴム支承本体の
中間規制板と係合ブロックとが上下に所定間隔を保持し
ているので、当該上部構造の傾きを支承なく許容する。
また、水平方向の変位に対しては、ゴム支承本体の積層
ゴム体のせん断変形で対応するが、上部係合ブロックの
内壁平面に沿う方向(これをX方向とする)に対して
は、下部係合ブロック間では中間規制板を当接拘束する
ことによりこの変位を阻止し、上部係合ブロック間では
中間規制板の動きを許容しこの変位を許容する。また、
下部係合ブロックの内壁平面に沿う方向(X方向に直交
する方向、これをY方向とする)に対しては、上部係合
ブロック間では中間規制板を当接拘束することによりこ
の変位を阻止し、下部係合ブロック間では中間規制板の
動きを許容し、この変位を許容する。これにより、上部
構造の水平方向の全方向変位を何ら支障をきたすことな
く許容する。上部構造に大きな上揚力が作用した場合、
ゴム支承本体はその中間規制板を介して上部係合ブロッ
クのあご部により持ち上げられるが、引き続いて該中間
規制板は下部係合ブロックのあご部に衝接し、それ以上
の浮上りが阻止される。(2) Operation The inclination and horizontal displacement of the upper structure are allowed by the deformation and displacement of the laminated rubber body of the rubber bearing main body. That is,
With respect to the inclination of the upper structure, the laminated rubber body of the rubber bearing body undergoes bending deformation and follows the inclination, but the intermediate regulating plate and the engagement block of the rubber bearing body maintain a predetermined interval vertically. Therefore, the inclination of the upper structure is allowed without any support.
In addition, the displacement in the horizontal direction is dealt with by the shear deformation of the laminated rubber body of the rubber bearing body, but the direction along the plane of the inner wall of the upper engagement block (this is defined as the X direction) is the lower direction. This displacement is prevented between the engaging blocks by abutting and restraining the intermediate regulating plate, and the movement of the intermediate regulating plate is allowed between the upper engaging blocks and this displacement is allowed. Also,
In the direction along the inner wall plane of the lower engagement block (the direction orthogonal to the X direction, which is referred to as the Y direction), the displacement is prevented by abutting the intermediate regulating plate between the upper engagement blocks. However, the movement of the intermediate regulating plate is allowed between the lower engagement blocks, and this displacement is allowed. Thereby, the omnidirectional displacement of the upper structure in the horizontal direction is allowed without any trouble. If a large lifting force acts on the superstructure,
The rubber bearing body is lifted by the jaw of the upper engaging block via the intermediate restricting plate. Subsequently, the intermediate restricting plate abuts against the jaw of the lower engaging block, and further lifting is prevented. .
【0006】(3) 実施例 本考案の浮上り防止機構付きゴム支承の実施例を図面に
基づいて説明する。 (実施例の構成) 図1〜図8はその一実施例であって、可動支承としての
機能を果す浮上り防止機構付きゴム支承を示す。すなわ
ち、図1はこの支承の全体の平面構成を示し、図2〜図
5はその側面構成及び断面構成を示し、図6〜図8はそ
の部分構成を示す。なお、図において、Xは橋軸方向を
示し、Yは橋軸直角方向を示す。(3) Embodiment An embodiment of a rubber bearing with a floating prevention mechanism according to the present invention will be described with reference to the drawings. (Configuration of Embodiment) FIGS. 1 to 8 show an embodiment of the present invention, and show a rubber bearing with a floating prevention mechanism which functions as a movable bearing. That is, FIG. 1 shows the overall plan configuration of this bearing, FIGS. 2 to 5 show its side configuration and cross-sectional configuration, and FIGS. 6 to 8 show its partial configuration. In the drawings, X indicates a bridge axis direction, and Y indicates a direction perpendicular to the bridge axis.
【0007】これらの図に示されるように、Bは橋脚・
ビル建造物等の下部構造であり、Gは橋桁・連絡橋等の
上部構造であり、本実施例の浮上り防止機構付きゴム支
承Sはこれらの下部構造Bと上部構造Gとの間に介装さ
れ、上部構造Gの荷重を下部構造Bに伝達するとともに
上部構造Gの橋軸並びに橋軸直角方向の変位を許容す
る。なお、本実施例において、下部構造B及び上部構造
Gはともに鋼製のものが示される。[0007] As shown in these figures, B is a bridge pier.
G is an upper structure such as a bridge girder and a connecting bridge. A rubber bearing S with a floating prevention mechanism of this embodiment is an intermediate structure between the lower structure B and the upper structure G. The upper structure G transmits the load of the upper structure G to the lower structure B and permits displacement of the bridge of the upper structure G in a direction perpendicular to the bridge axis. In this embodiment, the lower structure B and the upper structure G are both made of steel.
【0008】本浮上り防止機構付きゴム支承(以下単に
「ゴム支承」という)Sは、図1〜図5に示されるよう
に、上部構造Gの下面に取り付けられる上部取付け板
1、下部構造B上に取り付けられる下部取付け板2、こ
れらの上下部取付け板1,2間に介装されるゴム支承本
体3、上部取付け板1に固設されゴム支承本体3と係合
する上部係合ブロック4、下部取付け板2に固設されゴ
ム支承本体3と係合する下部係合ブロック5、の主要構
成要素よりなり、更には、上部取付け板1及び下部取付
け板2とゴム支承本体3との連動をなす上部ボス7、下
部ボス8、上部規制ボルト9、下部規制ボルト10を含
む。ここに、上部係合ブロック4と下部係合ブロック5
とは干渉しないように配される。As shown in FIGS. 1 to 5, the rubber bearing S (hereinafter, simply referred to as "rubber bearing") with a lifting prevention mechanism includes an upper mounting plate 1 and a lower structure B which are mounted on the lower surface of the upper structure G. A lower mounting plate 2 mounted thereon, a rubber bearing body 3 interposed between the upper and lower mounting plates 1 and 2, an upper engaging block 4 fixed to the upper mounting plate 1 and engaged with the rubber bearing body 3. And a lower engaging block 5 fixed to the lower mounting plate 2 and engaged with the rubber bearing main body 3, and furthermore, interlocking of the upper mounting plate 1 and the lower mounting plate 2 with the rubber supporting main body 3. , A lower boss 8, an upper regulating bolt 9, and a lower regulating bolt 10. Here, the upper engagement block 4 and the lower engagement block 5
And is arranged so as not to interfere with.
【0009】以下、各部の細部構造を説明する。取付け板1,2 上部構造Gに取り付けられる上部取付け板1は、所定厚
さにしてY方向に長い矩形板からなり、中央に円形のボ
ス取付け孔12が開設される。このボス取付け孔12に
上部ボス7が下方部を突出して埋め込み設置される。ま
た、その隅部にはねじ孔13が螺設され、上部規制ボル
ト9が下方より螺合設置される。The detailed structure of each part will be described below. The upper mounting plate 1 mounted on the mounting plates 1 and 2 and the upper structure G is formed of a rectangular plate having a predetermined thickness and being long in the Y direction, and a circular boss mounting hole 12 is opened at the center. The upper boss 7 is embedded in the boss mounting hole 12 so as to protrude from the lower portion. A screw hole 13 is screwed into the corner, and the upper regulating bolt 9 is screwed from below.
【0010】下部構造Bに取り付けられる下部取付け板
2は、所定厚さにしてX方向に長い矩形板からなり、中
央に円形のボス取付け孔15が開設され、該ボス取付け
孔15に下部ボス8がその上方部を突出して埋め込み設
置される。また、その隅部にはねじ孔16が螺設され、
下部規制ボルト10が上方より螺合設置される。The lower mounting plate 2 mounted on the lower structure B is formed of a rectangular plate having a predetermined thickness and being long in the X direction, and a circular boss mounting hole 15 is opened in the center. Is embedded and installed so as to protrude from the upper part. A screw hole 16 is screwed in the corner,
The lower regulating bolt 10 is screwed from above.
【0011】ゴム支承本体3 ゴム支承本体3は、上沓部20と、下沓部21と、これ
らの沓部20,21に挟着される中間規制板22とから
なる。換言すれば、中間規制板22を介して上方の上沓
部20と下方の下沓部21とに区分される。[0011] rubber bearing body 3 rubber bearings body 3 is comprised of a Uekutsu portion 20, a lower shoe portion 21, the intermediate restricting plate 22 for being clamped to these shoes 20 and 21. In other words, it is divided into an upper upper shoe portion 20 and a lower lower shoe portion 21 via the intermediate regulating plate 22.
【0012】図6〜図8はこのゴム支承本体3を取り出
して示したものである。図示されるように、上沓部20
は、上面板25と、下面板26と、これらの板25,2
6間に挟着される積層ゴム体27とからなる。上面板2
5は、正方形状をなし、その中央にブッシュ29が装着
されたボス穴30が開設され、その4辺の隅部には上部
規制ボルト9の挿通孔31が開設される。下面板26
は、上面板25と同形状をなすが、角部にボルト挿通孔
33aが穿設されている。積層ゴム体27は、ゴム体2
7aと補強板27bとが交互に積層されてなるもので、
大きな耐圧性を示すとともに水平変位を許容する。補強
板27bは薄鋼板、繊維補強板あるいは帆布等が用いら
れ、ゴム体27aとともに加硫処理され、一体的に成型
される。積層ゴム体27には、更に、中心部に円柱状の
鉛体を封入した態様を採ることができる。なお、該積層
ゴム体27は本実施例では角柱形状をなすが、円柱形状
であってもよく、更には、積層ゴムに限らず、ゴムを主
体とする弾性体をもって構成することもできる。FIGS. 6 to 8 show the rubber bearing main body 3 taken out. As shown, the upper shoe section 20
Are a top plate 25, a bottom plate 26, and these plates 25, 2
6 and a laminated rubber body 27 sandwiched between them. Top plate 2
5 has a square shape, a boss hole 30 in which a bush 29 is mounted is opened at the center, and an insertion hole 31 for the upper regulating bolt 9 is opened at the four corners. Lower plate 26
Has the same shape as the upper surface plate 25, but is provided with a bolt insertion hole 33a at a corner. The laminated rubber body 27 is a rubber body 2
7a and the reinforcing plate 27b are alternately laminated,
Shows high pressure resistance and allows horizontal displacement. As the reinforcing plate 27b, a thin steel plate, a fiber reinforcing plate, a canvas, or the like is used, and is vulcanized together with the rubber body 27a, and is integrally molded. In the laminated rubber body 27, a mode in which a columnar lead body is further sealed at the center can be adopted. Although the laminated rubber body 27 has a prismatic shape in this embodiment, it may have a cylindrical shape, and may be made of an elastic body mainly composed of rubber without being limited to the laminated rubber.
【0013】下沓部21は、上沓部20に準じる構成を
採る。すなわち、上面板35、下面板36、積層ゴム体
37(ゴム体37a、補強板37b)よりなり、下面板
36にはブッシュ39が装着されたボス穴40及び下部
規制ボルト10の挿通孔41、上面板35にはボルト挿
通孔33bがそれぞれ形成され、また、積層ゴム体37
には鉛体の封入もなされうる。The lower shoe section 21 has a configuration similar to that of the upper shoe section 20. That is, the upper plate 35, the lower plate 36, and the laminated rubber body 37 (the rubber body 37a and the reinforcing plate 37b) are provided. Bolt insertion holes 33 b are formed in the upper surface plate 35, respectively.
May be filled with a lead body.
【0014】中間規制板22は、所定厚さを保持する正
方形状の鋼板よりなり、大きな剛性を有する。該中間規
制板22には上沓部20及び下沓部21のボルト挿通孔
33a,33bに対応する位置にボルト挿通孔33cが
開設され、これらのボルト挿通孔33,33b,33c
に挿通されたボルト・ナット43をもってこれらの上沓
部20と下沓部21と中間規制板22とは一体的に組み
立てられる。The intermediate regulating plate 22 is made of a square steel plate having a predetermined thickness and has a large rigidity. Bolt insertion holes 33c are formed in the intermediate regulating plate 22 at positions corresponding to the bolt insertion holes 33a, 33b of the upper shoe portion 20 and the lower shoe portion 21, and these bolt insertion holes 33, 33b, 33c are provided.
The upper and lower shoe portions 20, 21 and the intermediate regulating plate 22 are integrally assembled with the bolts and nuts 43 inserted through the upper and lower portions.
【0015】該ゴム支承本体3は、上部取付け板1と下
部取付け板2との間に挟着設置されるが、これらの取付
け板1,2とはボス7,8及び規制ボルト9,10を介
して所定の位置関係に保持される。すなわち、上部取付
け板1に関しては、上部取付け板1の中央に埋込み固定
されたボス7が、ゴム支承本体3の上沓部20の上面板
25のボス孔30に挿脱自在とされ、また、上部取付け
板1の隅部に固設された上部規制ボルト9が該上面板2
5の挿通孔31を貫通し、その頭部は上面板25と適宜
間隔を保つ。これにより、ゴム支承本体3は上部取付け
板1から鉛直方向のみの移動を許容して離れうるもので
ある。一方、下部取付け板2に関しては、下部取付け板
2の中央に埋込み固定されたボス8が、ゴム支承本体3
の下沓部21の下面板36のボス孔40に挿脱自在とさ
れ、また、下部取付け板2の隅部に固設された下部規制
ボルト10が該下面板36の挿通孔31を貫通し、その
頭部は下面板36と適宜間隔を保つ。これにより、ゴム
支承本体3は下部取付け板2から鉛直方向のみの移動を
許容して離れうるものである。The rubber bearing body 3 is sandwiched between the upper mounting plate 1 and the lower mounting plate 2, and these mounting plates 1 and 2 are provided with bosses 7 and 8 and regulating bolts 9 and 10, respectively. Is maintained in a predetermined positional relationship via the That is, with respect to the upper mounting plate 1, the boss 7 embedded and fixed in the center of the upper mounting plate 1 can be inserted into and removed from the boss hole 30 of the upper plate 25 of the upper shoe portion 20 of the rubber bearing main body 3. The upper regulating bolt 9 fixed to the corner of the upper mounting plate 1
5 penetrates through the insertion hole 31, and the head thereof is appropriately spaced from the upper surface plate 25. Thus, the rubber bearing main body 3 can be moved away from the upper mounting plate 1 while permitting movement only in the vertical direction. On the other hand, regarding the lower mounting plate 2, the boss 8 embedded and fixed in the center of the lower mounting plate 2 is
A lower regulating bolt 10 fixed to a corner of the lower mounting plate 2 penetrates through the insertion hole 31 of the lower plate 36. The head is kept at an appropriate distance from the lower plate 36. Thereby, the rubber bearing main body 3 is allowed to move away from the lower mounting plate 2 only in the vertical direction.
【0016】係合ブロック4,5 再び図1〜図5を参照して、上部係合ブロック4は、所
定の剛性を有する一定厚さの板状体からなり、上部取付
け板1の下面に固設されるとともに、ゴム支承本体3を
挟んでその橋軸直角(Y)方向の両側に、かつ、その板
面をX方向に沿って配される。上部取付け板1との取付
けは本実施例では溶接による固定態様が採られている
が、ボルトその他の適宜の固定態様を除外するものでは
ない。該上部係合ブロック4の内側面4aは中間規制板
22の側面と若干の間隔を保ち、その下端の上に向いて
形成されたあご部4bを同じく中間規制板22の下面と
所定の間隔αを保持して配される。なお、上記の内側面
4aと中間規制板22との間隔は常時の温度変化に伴う
上部構造Gの伸縮に対応するものであり、従って係合ブ
ロック4の内側面4aを中間規制板22の側面に当接す
る態様も可能である。 Engaging Blocks 4 and 5 Referring again to FIGS. 1 to 5, the upper engaging block 4 is formed of a plate having a predetermined thickness and a predetermined rigidity, and is fixed to the lower surface of the upper mounting plate 1. At the same time, it is arranged on both sides of the rubber bearing main body 3 in the direction perpendicular to the bridge axis (Y), and its plate surface is arranged along the X direction. In this embodiment, attachment to the upper attachment plate 1 is fixed by welding, but bolts and other appropriate fixing modes are not excluded. The inner side surface 4a of the upper engagement block 4 keeps a slight distance from the side surface of the intermediate regulating plate 22, and the jaw portion 4b formed facing the lower end thereof has a predetermined distance α from the lower surface of the intermediate regulating plate 22. Is held and arranged. Note that the distance between the inner side surface 4a and the intermediate regulating plate 22 corresponds to the expansion and contraction of the upper structure G due to a constant temperature change. It is also possible to adopt a mode in which the contact is made.
【0017】下部係合ブロック5は、上部係合ブロック
5に準じ、所定の剛性を有する一定厚さの板状体からな
り、下部取付け板2の下面に固設されるとともに、ゴム
支承本体3を挟んでその橋軸(X)方向の両側に、か
つ、その板面をY方向に沿って配される。該下部係合ブ
ロック5の内側面5aは中間規制板22の側面と若干の
間隔を保ち、その下端の下に向いて形成されたあご部5
bを同じく中間規制板22の下面と所定の間隔βを保持
して配される。なお、係合ブロック5の内側面5aを中
間規制板22の側面に当接する態様も可能である。The lower engaging block 5 is formed of a plate-like body having a predetermined thickness and a predetermined rigidity in accordance with the upper engaging block 5, is fixed to the lower surface of the lower mounting plate 2, and has a rubber bearing main body 3. Are arranged on both sides in the direction of the bridge axis (X), and the plate surface is arranged along the Y direction. The inner side surface 5a of the lower engagement block 5 is slightly spaced from the side surface of the intermediate regulating plate 22, and a jaw portion 5 formed below the lower end thereof.
b is also arranged while maintaining a predetermined interval β with the lower surface of the intermediate regulating plate 22. Note that a mode in which the inner side surface 5a of the engagement block 5 abuts on the side surface of the intermediate regulating plate 22 is also possible.
【0018】本実施例の浮上り防止機構付き支承Sは、
特にはビル間連絡橋に適用される。図9はその配置の一
例を示す。図において、B1,B2は互いに独立して並
立するビル建造物であり、連絡橋Gがこれらのビル建造
物間に支承Sを介して架け渡される。Smはその可動支
承、Sfは固定支承であり、可動支承Smは本実施例の
ものであることは勿論である。固定支承Sfにおいて
は、橋梁の固定支承として従来公知のものが使用され
る。The bearing S with a floating prevention mechanism of the present embodiment is
In particular, it is applied to bridges between buildings. FIG. 9 shows an example of the arrangement. In the figure, B1 and B2 are building structures which stand side by side independently of each other, and a connecting bridge G is bridged between these building structures via a bearing S. Sm is the movable bearing, Sf is the fixed bearing, and the movable bearing Sm is of course in this embodiment. In the fixed bearing Sf, a conventionally known fixed bearing for a bridge is used.
【0019】(実施例の作用・効果) 上述した構成からなる本実施例の浮上り防止機構付きゴ
ム支承Sは、図10及び図11に示されるように、上部
構造Gの傾き、水平変位、更にまた上揚力に対して以下
のように作用する。(Effects and Effects of the Embodiment) The rubber bearing S with a floating prevention mechanism of the present embodiment having the above-described structure has a tilt of the upper structure G, a horizontal displacement and a horizontal displacement, as shown in FIGS. Furthermore, it acts on the lifting force as follows.
【0020】上部構造Gに車両・通行者等の通行により
傾きを生じた場合、該傾きに対して、ゴム支承本体3の
積層ゴム体27,37が曲げ変形を受け、傾きに追従す
るが、ゴム支承本体3の中間規制板22と係合ブロック
4,5とが上下に所定間隔を保持しているので、当該上
部構造Gの傾きを阻止することなく許容する。When the upper structure G is tilted due to the passage of a vehicle or a pedestrian or the like, the laminated rubber members 27 and 37 of the rubber bearing main body 3 undergo bending deformation in response to the tilt, and follow the tilt. Since the intermediate regulating plate 22 of the rubber bearing main body 3 and the engagement blocks 4 and 5 maintain a predetermined interval vertically, the inclination of the upper structure G is allowed without being obstructed.
【0021】上部構造Gに水平変位力が作用した場合、
ゴム支承本体3の積層ゴム体27,37のせん断変形で
対応するが、橋軸(X)方向に対しては、下部係合ブロ
ック5間では中間規制板22を当接拘束することにより
この変位を阻止し、上部係合ブロック4間では中間規制
板22の動きを許容しこの変位を許容する。図10は上
部構造Gが橋軸方向のイ方向へ変位した状態を示す。ま
た、橋軸直角(Y)方向に対しては、上部係合ブロック
4間では中間規制板22を当接拘束することによりこの
変位を阻止し、下部係合ブロック5間では中間規制板2
2の動きを許容し、この変位を許容する。なお、通常の
温度変化による橋軸方向の変位は、上記した水平変位の
橋軸方向成分に含められる。When a horizontal displacement force acts on the upper structure G,
The shear deformation of the laminated rubber bodies 27 and 37 of the rubber bearing main body 3 corresponds to the shear deformation. However, in the direction of the bridge axis (X), this displacement is caused by abutting and restraining the intermediate regulating plate 22 between the lower engagement blocks 5. And the movement of the intermediate regulating plate 22 is allowed between the upper engagement blocks 4 to allow this displacement. FIG. 10 shows a state in which the upper structure G has been displaced in the direction of the bridge axis. In the direction perpendicular to the bridge axis (Y), the displacement is prevented by contacting and restraining the intermediate restricting plate 22 between the upper engaging blocks 4, and the intermediate restricting plate 2 between the lower engaging blocks 5.
2 and allow this displacement. The displacement in the bridge axis direction due to a normal temperature change is included in the above-mentioned horizontal displacement component of the horizontal displacement.
【0022】上部構造Gに過大な上揚力が生じた場合、
図11に示すように、上部構造Gはロ方向へ持ち上げら
れ、ゴム支承本体3はその中間規制板22を介して上部
係合ブロック4のあご部4bにより持ち上げられるが、
引き続いて該中間規制板22は下部係合ブロック5のあ
ご部5bに衝接し、それ以上の浮上りが阻止される。When an excessive lifting force is generated in the upper structure G,
As shown in FIG. 11, the upper structure G is lifted in the direction B, and the rubber bearing body 3 is lifted by the jaw 4 b of the upper engagement block 4 via the intermediate regulating plate 22.
Subsequently, the intermediate regulating plate 22 abuts against the jaw portion 5b of the lower engagement block 5, and further lifting is prevented.
【0023】以上のように、本実施例の浮上り防止機構
付きゴム支承Sによれば、ゴム支承本体3の中間規制板
22と上部係合ブロック4とで橋軸直角方向の変位を阻
止するとともに橋軸方向の変位を許容し、該中間規制板
22と下部係合ブロック5とで橋軸方向の変位を阻止す
るとともに橋軸直角方向の変位を許容し、この結果、水
平方向のどの方向に対しても対応でき、かつ、これと同
時に、傾動変位を許容するとともに浮上り防止機能を発
揮するので、多様な振動特性をなすビル間連絡橋に好適
である。なお、本実施例のゴム支承Sの配置を90°回
転させた態様においても、その作用効果に本質的差異は
ない。As described above, according to the rubber bearing S with the floating prevention mechanism of the present embodiment, the displacement in the direction perpendicular to the bridge axis is prevented by the intermediate regulating plate 22 of the rubber bearing main body 3 and the upper engaging block 4. And the intermediate control plate 22 and the lower engagement block 5 prevent the displacement in the bridge axis direction and allow the displacement in the direction perpendicular to the bridge axis. And at the same time, it permits tilting displacement and exhibits a function of preventing floating. Therefore, it is suitable for a bridge between buildings having various vibration characteristics. It should be noted that even in the embodiment in which the arrangement of the rubber bearing S is rotated by 90 ° in this embodiment, there is essentially no difference in the operation and effect.
【0024】本考案は上記実施例に限定されるものでは
なく、本考案の基本的技術思想の範囲内で種々設計変更
が可能である。すなわち、以下の態様は本考案の技術的
範囲内に包含されるものである。 上沓部20と下沓部21との丈高を変える態様。例
えば、変位の大きい方向の沓部(通常には橋軸方向の変
位を許容する上沓部20)の丈高を大きくする。 ボス7,8を上面板25、下面板36に固定させ、
上部取付け板1及び下部取付け板2に対し、挿脱自在と
する態様。The present invention is not limited to the above embodiment, and various design changes can be made within the scope of the basic technical concept of the present invention. That is, the following embodiments are included in the technical scope of the present invention. A mode in which the height of the upper shoe section 20 and the lower shoe section 21 is changed. For example, the height of the shoe portion in the direction of large displacement (usually the upper shoe portion 20 that allows displacement in the bridge axis direction) is increased. The bosses 7 and 8 are fixed to the upper plate 25 and the lower plate 36,
A mode in which it can be inserted into and removed from the upper mounting plate 1 and the lower mounting plate 2.
【0025】ハ. 考案の効果 本考案の浮上り防止機構付きゴム支承によれば、ゴム支
承本体の中間規制板と上部係合ブロックとで平面方向に
おける一軸方向の変位を阻止するとともに該一軸方向に
直交する他の直角軸方向の変位を許容し、該中間規制板
と下部係合ブロックとで前記直角軸方向の変位を阻止す
るとともに前記一軸方向の変位を許容し、この結果、水
平方向のどの方向に対しても対応でき、かつ、これと同
時に、傾動変位を許容するとともに浮上り防止機能を発
揮するので、多様な振動特性をなすビル間連絡橋に好適
である。C. Effects of the Invention According to the rubber bearing with the floating prevention mechanism of the present invention, the intermediate regulating plate of the rubber bearing main body and the upper engagement block prevent the displacement in the uniaxial direction in the plane direction, and the uniaxial direction. To allow displacement in the other right-angled axis direction perpendicular to the axis, and to prevent the displacement in the right-angled axis direction with the intermediate restricting plate and the lower engagement block, and to allow the displacement in the one-axis direction. It can be used in any direction, and at the same time, allows a tilting displacement and exhibits a floating prevention function. Therefore, it is suitable for a bridge between buildings having various vibration characteristics.
【図1】本考案の浮上り防止機構付きゴム支承の一実施
例の全体の平面図。FIG. 1 is an overall plan view of an embodiment of a rubber bearing with a floating prevention mechanism of the present invention.
【図2】図1のII方向側面図。FIG. 2 is a side view in the II direction of FIG. 1;
【図3】図1の III−III 線断面図。FIG. 3 is a sectional view taken along the line III-III of FIG. 1;
【図4】図1のIV方向側面図。FIG. 4 is a side view in the IV direction of FIG. 1;
【図5】図1のV−V線断面図。FIG. 5 is a sectional view taken along line VV of FIG. 1;
【図6】支承本体の平面図。FIG. 6 is a plan view of a bearing main body.
【図7】図6の VII−VII 線断面図。FIG. 7 is a sectional view taken along line VII-VII of FIG. 6;
【図8】図6の IIX−IIX 線断面図。FIG. 8 is a sectional view taken along the line IIX-IIX in FIG. 6;
【図9】(a)図はビル連絡橋への適用例を示す側面
図。(b)図はその平面図。FIG. 9A is a side view showing an example of application to a building connecting bridge. (B) is a plan view thereof.
【図10】本実施例のゴム支承の水平方向への変位を示
す穿動図。FIG. 10 is a perspective view showing displacement of the rubber bearing of the present embodiment in the horizontal direction.
【図11】本実施例のゴム支承の浮上りを示す挙動図。FIG. 11 is a behavior diagram showing floating of the rubber bearing of the embodiment.
B…下部構造、G…上部構造、S…ゴム支承、1…上部
取付け板、2…下部取付け板、3…ゴム支承本体、4…
上部係合ブロック、4a…あご部、5…下部係合ブロッ
ク、5b…あご部B: Lower structure, G: Upper structure, S: Rubber bearing, 1: Upper mounting plate, 2: Lower mounting plate, 3: Rubber bearing body, 4 ...
Upper engagement block, 4a: jaw part, 5: lower engagement block, 5b: jaw part
Claims (4)
部構造の水平方向全方向の変位を許容するゴム支承であ
って、 前記上部構造の下面には上部取付け板が、前記下部構造
の上面には下部取付け板がそれぞれ固定されており、 前記上部及び下部取付け板間には、中間位置において水
平方向に張設され、実質的に矩形平板状をなす剛な中間
規制板を挟んで上下にゴム支承を有するゴム支承本体が
配され、 前記上部取付け板の下面には、上に向けてあご部を有す
る上部係合ブロックが、前記ゴム支承本体を挟んで当接
もしくは許容間隙を存して相対向して配されるととも
に、前記あご部の上面と前記ゴム支承本体の中間規制板
との間に所定の間隔を存して固定され、 前記下部取付け板の上面には、下に向けてあご部を有す
る下部係合ブロックが、前記ゴム支承本体を他の側から
挟んで当接もしくは許容間隙を存して相対向して配され
るとともに、前記あご部の下面と前記ゴム支承本体の中
間規制板との間に所定の間隔を存して固定されてなる、 ことを特徴とする浮上り防止機構付きゴム支承。1. A rubber bearing interposed between an upper structure and a lower structure, which allows displacement of the upper structure in all directions in the horizontal direction, wherein an upper mounting plate is provided on a lower surface of the upper structure, and A lower mounting plate is fixed to the upper surface of the structure, and a rigid intermediate regulating plate, which is stretched horizontally at an intermediate position and has a substantially rectangular plate shape, is sandwiched between the upper and lower mounting plates. A rubber bearing body having rubber bearings at the top and bottom is disposed, and an upper engagement block having a jaw facing upward is provided on a lower surface of the upper mounting plate to abut or allow a gap with the rubber bearing body therebetween. While being arranged opposite to each other and fixed at a predetermined interval between the upper surface of the jaw portion and the intermediate regulating plate of the rubber bearing main body. Engaging block with jaw towards the bottom Are disposed opposite to each other with an abutment or an allowable gap sandwiching the rubber bearing body from the other side, and a predetermined distance is provided between the lower surface of the jaw portion and the intermediate regulating plate of the rubber bearing body. A rubber bearing with an anti-floating mechanism, which is fixed at an interval.
び、下部取付け板とゴム支承本体の下面とは、それぞれ
鉛直方向の移動のみを許容するボスにより結合されてな
る請求項1に記載の浮上り防止機構付きゴム支承。2. The method according to claim 1, wherein the upper mounting plate and the upper surface of the rubber bearing main body, and the lower mounting plate and the lower surface of the rubber bearing main body are respectively connected by bosses permitting only vertical movement. Rubber bearing with anti-floating mechanism.
る請求項1に記載の浮上り防止機構付きゴム支承。3. The rubber bearing according to claim 1, wherein the rubber bearing of the rubber bearing body is a laminated rubber body.
ム体の中心部に円柱状の鉛体が封入されてなる浮上り防
止機構付きゴム支承。4. A rubber bearing according to claim 3, wherein a cylindrical lead body is sealed in the center of the laminated rubber body of the rubber bearing body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1993004303U JP2571782Y2 (en) | 1993-01-20 | 1993-01-20 | Rubber bearing with lifting prevention mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1993004303U JP2571782Y2 (en) | 1993-01-20 | 1993-01-20 | Rubber bearing with lifting prevention mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0657906U JPH0657906U (en) | 1994-08-12 |
JP2571782Y2 true JP2571782Y2 (en) | 1998-05-18 |
Family
ID=11580745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1993004303U Expired - Lifetime JP2571782Y2 (en) | 1993-01-20 | 1993-01-20 | Rubber bearing with lifting prevention mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2571782Y2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6212228B1 (en) * | 2017-02-14 | 2017-10-11 | 株式会社ビービーエム | Structural support device |
CN113882245B (en) * | 2021-10-11 | 2023-11-28 | 陕西中宇交通规划设计有限公司 | Shock-resistant bridge plate type rubber support |
-
1993
- 1993-01-20 JP JP1993004303U patent/JP2571782Y2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0657906U (en) | 1994-08-12 |
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