JPS5935606Y2 - bearing - Google Patents
bearingInfo
- Publication number
- JPS5935606Y2 JPS5935606Y2 JP15836981U JP15836981U JPS5935606Y2 JP S5935606 Y2 JPS5935606 Y2 JP S5935606Y2 JP 15836981 U JP15836981 U JP 15836981U JP 15836981 U JP15836981 U JP 15836981U JP S5935606 Y2 JPS5935606 Y2 JP S5935606Y2
- Authority
- JP
- Japan
- Prior art keywords
- shoe
- bridge axis
- cowshed
- side block
- bridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Description
【考案の詳細な説明】
本考案は、橋梁、高梁などに用いられる支承、とくに地
震などの過大な橋軸方向への水平力を吸収可能にした支
承に関するものである。[Detailed Description of the Invention] The present invention relates to a bearing used for bridges, high beams, etc., and in particular to a bearing capable of absorbing excessive horizontal force in the direction of the bridge axis due to earthquakes.
一般に橋梁、高架などに用いられている支承は該支承を
横取する下沓もしくは底板に上沓を上下方向に係止する
とともに、該上沓に設けた切り欠き部に嵌装するサイド
ブロックを固定して、該サイドブロックと上沓の係合で
該上沓の橋軸方向への一定以上の移動を規制せしめる形
式のものが主であり、地震などの水平力も上沓とサイド
ブロックの係合で規制せしめる方法がとられている。Generally, the bearings used for bridges, elevated structures, etc. have a lower shoe that intercepts the support, or an upper shoe that is vertically locked to the bottom plate, and a side block that fits into a notch provided in the upper shoe. The main type is fixed, and the engagement between the side block and the upper shoe restricts movement of the upper shoe beyond a certain level in the bridge axis direction, and horizontal forces such as earthquakes are also prevented by the engagement between the upper shoe and the side block. A method is being adopted to regulate the situation.
しかしながら、該方法では通常の上沓の移動は規制せし
められても、偶発的な地震などによる過大な水平力は規
制し得ず、該上沓もしくはサイドブロックが破損して支
承としての機能を損なう不具合が時として生じている。However, although this method restricts the normal movement of the upper shoe, it cannot control the excessive horizontal force caused by an accidental earthquake, etc., and the upper shoe or side block is damaged and loses its function as a support. Problems sometimes occur.
本考案は、これらに鑑みなされたものである。The present invention has been developed in view of these considerations.
すなわち、橋桁などの上部構造に固定される上沓と該上
沓に摺接する支圧部材と該支圧部材を保持する申告と該
申告を支持する橋脚などの下部構造に固定される下沓と
よりなる支承において、下沓は上面に橋軸直角方向に沿
う山形凹溝が、また橋軸直角方向の両側面下端部に切り
欠き凹部が形成されており、申告は下面に下沓の山形凹
溝に噛合摺接する凹溝が、また上沓は橋軸直角方向の両
端に切り欠き部を有する段部が形成されている。In other words, an upper shoe that is fixed to an upper structure such as a bridge girder, a bearing member that slides on the upper shoe, a support member that holds the support member, and a lower shoe that is fixed to a lower structure such as a bridge pier that supports the support member. In this type of support, the lower shoe has a chevron-shaped concave groove along the direction perpendicular to the bridge axis on the upper surface, and cutout recesses are formed at the lower ends of both sides in the direction perpendicular to the bridge axis. A concave groove is formed in meshing and sliding contact with the groove, and the upper shoe is formed with a stepped portion having notches at both ends in the direction perpendicular to the bridge axis.
そして、該下沓、申告および上沓は上下端にフック部を
有するサイドブロックで、該サイドブロックを申告に固
定し、下端フック部を下沓の切り欠き凹部に、また上端
フック部を上沓の切り欠き部に嵌装して段部にそれぞれ
係合せしめて上下方向に係止することによって、申告が
その下面の凹溝と摺接する下沓の山形凹溝の斜面を橋軸
方向に移動、いわゆる登ることによって、上沓゛および
サイドブロックを破損せしめることなく、過大な水平力
を吸収可能にして支承を提供するものである。The lower shoe, the shoe and the upper shoe are side blocks having hook portions at the upper and lower ends, and the side block is fixed to the shoe, the lower end hook portion is inserted into the notch recess of the lower shoe, and the upper end hook portion is inserted into the upper shoe. By fitting into the notches of and engaging with the steps respectively and locking in the vertical direction, the declaration moves in the direction of the bridge axis on the slope of the chevron-shaped groove of the lower shoe that slides into contact with the groove on the lower surface, By so-called climbing, excessive horizontal forces can be absorbed without damaging the upper shoe and side blocks, thereby providing support.
本考案において、支承の支圧部材とは上沓と中吉間に配
されて上部構造に作用する荷重を支持し、かつ該上部構
造の伸縮ならびに傾きを上沓および申告との摺接もしく
は支圧部材自身の変形で逃がすものを言うもので、一般
に用いられているローラー、ゴム弾性体、支承板などが
適用できるものである。In the present invention, the bearing pressure member of the support is placed between the upper shoe and the middle bridge to support the load acting on the upper structure, and also prevents the expansion, contraction and inclination of the upper structure by sliding contact or bearing pressure with the upper shoe and the front. This refers to something that releases by deforming the member itself, and commonly used rollers, rubber elastic bodies, support plates, etc. can be used.
以下、本考案の実施例を図面において詳細に説明する。Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
１は支承を横取する橋桁などの上部構造Ｇにボルト２，
２などによって固定される上沓で、該上沓１は橋軸直角
方向の両端に切り欠き部３を有する段部４が形成されて
いる。1 is a bolt 2,
2, etc., and the upper shoe 1 is formed with a stepped portion 4 having notches 3 at both ends in a direction perpendicular to the bridge axis.
５は支承を構成する橋脚などの下部構造Ｂにアンカーボ
ルト６．６などによって固定される下沓で、該下沓５は
上面７に橋軸方向に沿い、斜面角度がθをなす山形凹溝
８が、また橋軸直角方向の側面下端部に切り欠き凹部９
が形成されている。Reference numeral 5 denotes a lower shoe which is fixed to the lower structure B such as a bridge pier constituting the support with an anchor bolt 6.6, etc. The lower shoe 5 has a chevron-shaped groove on the upper surface 7 along the bridge axis direction and whose slope angle is θ. 8 also has a notch recess 9 at the lower end of the side surface in the direction perpendicular to the bridge axis.
is formed.
１０は下沓５上に配される牛舎で、該牛舎１０は下面１
１に下沓の山形凹溝８に噛み合って摺接する凹溝１２が
、また橋軸方向の側面にボルト孔１３が、さらに上面１
４に支圧部材１５が配される凹球面状の凹部１６が形成
されている。10 is a cowshed arranged on the lower shoe 5, and the cowshed 10 is located on the lower surface 1.
1 has a concave groove 12 that meshes with and slides into the chevron-shaped concave groove 8 of the lower shoe, and a bolt hole 13 is provided on the side surface in the bridge axis direction;
4 is formed with a concave spherical recess 16 in which a bearing pressure member 15 is disposed.
１７は上下端にフック部１８．１８’ を有するサイ
ドブロックで、該サイドブロック１７は該フック部１８
゜１８′ 間に牛舎のボルト孔１３と合致する係止孔１
９が形成されている。Reference numeral 17 denotes a side block having hook portions 18 and 18' at the upper and lower ends;
゜18' Locking hole 1 that matches the bolt hole 13 of the cow shed between
9 is formed.
２０はサイドブロック１７を牛舎１０に固定する係止ボ
ルトで、該係止ボルト２０はサイドブロックの係止孔１
９に嵌挿され、牛舎のボルト孔１３に螺着される。Reference numeral 20 denotes a locking bolt for fixing the side block 17 to the cowshed 10, and the locking bolt 20 is inserted into the locking hole 1 of the side block.
9 and screwed into the bolt hole 13 of the cow shed.
２１は上沓の上面２２に設けられた固定孔で、該固定孔
２１には上部構造Ｇとの固定時にボルト２，２が螺着さ
れるものである。21 is a fixing hole provided in the upper surface 22 of the upper shoe, and bolts 2, 2 are screwed into the fixing hole 21 when fixing to the upper structure G.
２３は下沓５に設けられた貫通孔で、該貫通孔２３には
下部構造Ｂとの固定時にアンカーボルト６゜６が嵌挿さ
れるものである。23 is a through hole provided in the lower shoe 5, into which an anchor bolt 6.degree. 6 is inserted when fixing to the lower structure B.
２４は支圧部材１５の一方の面に形成された凸球面２５
は該支圧部材１５の他方の面に形成された平面で、該凸
球面２４は牛舎の凹部１４に摺接して上部構造Ｇの傾き
を、また下面２５は上沓の下面２６に摺接して、該上部
構造Ｇの伸縮を逃がすものである。24 is a convex spherical surface 25 formed on one surface of the pressure bearing member 15
is a plane formed on the other surface of the bearing pressure member 15, the convex spherical surface 24 slides in contact with the recess 14 of the cowshed to control the inclination of the upper structure G, and the lower surface 25 slides in contact with the lower surface 26 of the upper shoe. , which releases expansion and contraction of the upper structure G.
本考案の支承は、下沓５の上面７に山形凹溝８を設け、
該山形凹溝８上に牛舎１０を該牛舎１０の下面１１に設
けた凹溝１２を噛合せしめ、さらに該中吉１０上に支圧
部材１５および上沓１を配し、ついで該上沓１および牛
舎１０ならびに下沓５をサイドブロック１７で上下方向
に、すなわち該サイドブロック１７の上端フック部１８
″ を上沓１の切り欠き部３に嵌装して段部４に係合せ
しめ、また下端フック部１８を下沓５の切り欠き凹部９
に係合せしめ、さらに係止孔１９に嵌挿したボルト２０
を牛舎１０のボルト孔１３に螺着して該牛舎１０にサイ
ドブロック１７を固定することによって、上下方向に係
止せしめで構成される。The support of the present invention has a chevron-shaped groove 8 on the upper surface 7 of the lower shoe 5,
A cowshed 10 is fitted onto the chevron-shaped groove 8 and a groove 12 provided on the lower surface 11 of the cowshed 10 is engaged with the cowshed 10, and a bearing member 15 and an upper shoe 1 are placed on the centerpiece 10, and then the upper shoe 1 and The cowshed 10 and the lower shoe 5 are connected vertically by the side block 17, that is, by the hook portion 18 at the upper end of the side block 17.
'' into the notch 3 of the upper shoe 1 to engage with the step 4, and the lower end hook 18 is inserted into the notch 9 of the lower shoe 5.
and the bolt 20 inserted into the locking hole 19.
By screwing the side block 17 into the bolt hole 13 of the cattle shed 10 and fixing the side block 17 to the cattle shed 10, the side block 17 is locked in the vertical direction.
このように構成することにより、通常の荷重下において
は下沓５の山形凹溝８と牛舎１０の凹溝１２との噛合（
摩擦力）で該牛舎１０の位置を保持し、上部構造Ｇの伸
縮ならびに傾きを上沓１お・よび牛舎１０と支圧部材１
５の摺接で逃がすとともに上沓１の橋軸方向への一定以
上の移動を上沓の切り欠き部３とサイドブロック１７の
係合で規制せしめ、−室以上の水平力が作用した場合に
は、該力が上沓１からサイドブロック１７を介して牛舎
１０に伝達されることによって、該牛舎１０が下沓の山
形凹溝８上を上沓１を伴ない、かつ該牛舎１０に固定さ
れたサイドブロック１７は下沓５の切り欠き凹部９内を
移動させて、該山形凹溝８の斜面を摩擦力に打ち勝って
上沓１の水平状態を保ちながら移動、換言すれば第１図
に示す破線状態となるように斜面を牛舎１０が登ること
によって、該水平力を吸収せしめるもので水平力が消え
ると牛舎１０は上部構造Ｇの自重によって所定位置に戻
るものである。With this configuration, under normal loads, the angular grooves 8 of the lower shoe 5 and the grooves 12 of the cowshed 10 will not engage (
The position of the cowshed 10 is maintained by frictional force), and the expansion and contraction and inclination of the upper structure G are controlled by the upper shoe 1, the cowshed 10, and the bearing member 1.
5, and the movement of the upper shoe 1 in the bridge axis direction beyond a certain level is restricted by the engagement between the notch 3 of the upper shoe and the side block 17, and when a horizontal force of - chamber or more is applied. By transmitting the force from the upper shoe 1 to the cowshed 10 via the side block 17, the cowshed 10 moves along the chevron-shaped groove 8 of the lower shoe with the upper shoe 1 and is fixed to the cowshed 10. The side block 17 moves within the cutout recess 9 of the lower shoe 5, overcomes the frictional force on the slope of the chevron-shaped groove 8, and moves while maintaining the horizontal state of the upper shoe 1. In other words, as shown in FIG. By climbing the slope as shown by the broken line, the cowshed 10 absorbs the horizontal force, and when the horizontal force disappears, the cowshed 10 returns to a predetermined position due to the weight of the upper structure G.
なお、牛舎１０の下沓５上の移動規制は、サイドブロッ
ク１７の下端フック部１８が下沓の切り欠き凹部９に当
接することによって行なうものである。The movement of the cowshed 10 on the lower shoe 5 is restricted by the lower end hook portion 18 of the side block 17 coming into contact with the notch recess 9 of the lower shoe.
また、下沓５に設ける山形凹溝８の斜面角度θは牛舎１
０が最大設計水平力以下の荷重作用時においては移動せ
ず、該水平力以上の荷重が作用した時にその斜面を移動
するように設定するもので、一般には上部構造Ｇに作用
する鉛直荷重および最大設計水平力と牛舎１０と下沓５
の摩擦係数とによって決定される。In addition, the slope angle θ of the chevron-shaped groove 8 provided on the lower shoe 5 is
0 does not move when a load less than the maximum design horizontal force is applied, but moves on the slope when a load greater than the horizontal force is applied, and generally the vertical load acting on the superstructure G and Maximum design horizontal force and cowshed 10 and lower shoe 5
is determined by the coefficient of friction.
本実施例において、橋軸方向の水平力を上沓１から牛舎
１０に、上沓１と係合するサイドブロック１７を介して
伝達せしめる態様を示したが、上沓１の橋軸方向の両端
に牛舎１０の側面に当接する垂下フランジ部を設けるこ
とにより、サイドブロック１７を介することなく該力を
伝達せしめるようにする態様も可能で、かかる場合サイ
ドブロック１７は上沓１と牛舎１０の上下方向の係止の
みを分担させるものである。In this embodiment, a mode is shown in which the horizontal force in the bridge axis direction is transmitted from the upper shoe 1 to the cowshed 10 via the side blocks 17 that engage with the upper shoe 1. It is also possible to transmit the force without going through the side block 17 by providing a hanging flange portion that contacts the side surface of the cow shed 10. Only the locking in the direction is shared.
また、牛舎１０の下沓５上の移動規制をサイドブロック
１７と該下沓の切り欠き凹部９の係合で行なう態様を示
したが、下沓の上面７に牛舎１０を橋軸方向に挾むよう
に、橋軸直角方向に沿う凸条を設けることにより、その
移動を該サイドブロック１７と切り欠き凹部９の係合で
行なうことなく規制せしめる態様も可能で、かかる場合
サイドブロック１７は中音１０と下沓５の方向の係止の
みを分担させるものである。Furthermore, although a mode has been shown in which the movement of the cowshed 10 on the lower shoe 5 is restricted by the engagement of the side block 17 and the cutout recess 9 of the lower shoe, the cowshed 10 is clamped on the upper surface 7 of the lower shoe in the bridge axis direction. By providing a convex strip along the direction perpendicular to the bridge axis, it is also possible to restrict the movement of the side block 17 without engaging it with the notch recess 9. In such a case, the side block 17 has a middle pitch of 10 Only the locking in the direction of the lower shoe 5 is shared.
さらに、本実施例では詳述しなかったが、橋軸直角方向
に作用する力による中音１０の該方向への移動規制につ
いては、実施例図に示す如くサイドブロック１７と下沓
５の当接で規制せしめるか、あるいは中音の下面１１と
下沓の上面７に橋軸方向に沿う溝を設け、畝溝にブロッ
ク材を嵌合することによってその係合で規制せしめるか
、もしくは下沓５の橋軸直角方向の両端に中音１０を挾
むように凸起を設けて規制せしめるなどの態様がとかれ
るものである。Furthermore, although not described in detail in this embodiment, the movement of the midrange sound 10 in that direction due to the force acting in the direction perpendicular to the bridge axis is restricted as shown in the embodiment drawings. Alternatively, grooves may be provided in the lower surface 11 of the middle sound and the upper surface 7 of the lower shoe along the bridge axis direction, and block material may be fitted into the ridge grooves to regulate the engagement. In this embodiment, protrusions are provided on both ends of the bridge 5 in the direction perpendicular to the bridge axis so as to sandwich the middle tone 10 to restrict the middle tone 10.
本考案は上述の構成よりなり、地震などの過大な水平力
を中音がその下面に設けた凹溝と噛合摺接する下沓の山
形凹溝の斜面を移動することによって吸収できるため上
沓およびサイドブロックの破損を防止でき、過大な水平
力が作用しても常に円滑な支承機能を保持せしめられる
実用上多大な効果を有するものである。The present invention has the above-mentioned structure, and because the medium sound can absorb excessive horizontal force such as that caused by an earthquake by moving on the slope of the chevron-shaped groove of the lower shoe that engages and slides into contact with the groove provided on the lower surface, the upper shoe and This has a great practical effect in that it can prevent damage to the side blocks and always maintain a smooth supporting function even when excessive horizontal force is applied.
第１図は、本考案の支承を示す一部縦断側面図第２図は
、その分解斜視図である。
１：上沓、３：切り欠き部、４：段部、５：下沓、７：
上面、８：山形凹溝、９：切り欠き凹部、１０：中音、
１１：下面、１２：凹溝、１７：サイドブロック、１８
．１８’ ：フツク部。FIG. 1 is a partially longitudinal side view showing the support of the present invention, and FIG. 2 is an exploded perspective view thereof. 1: Upper shoe, 3: Notch, 4: Step, 5: Lower shoe, 7:
Top surface, 8: chevron groove, 9: cutout recess, 10: middle tone,
11: Bottom surface, 12: Concave groove, 17: Side block, 18
．． 18': Hook part.
Claims (1)
る支圧部材と該支圧部材を保持する申告と該申告を支持
する橋脚などの下部構造に固定される下沓とよりなる支
承において、下沓は上面に橋軸直角方向に沿う山形凹溝
が、また橋軸直角方向の両側面下端部に切り欠き凹部が
形成されており、申告は下面に下沓の山形凹溝に噛合摺
接する凹溝が、また上沓は橋軸直角方向の両端に切り欠
き部を有する段部が形成されており、該下沓、申告お゛
よび上沓は上下端にフック部を有するサイドブロックで
、該サイドブロックを申告に固定し、下端フック部を下
沓の切り欠き凹部に、また上端フック部を上沓の切り欠
き部に嵌装して段部にそれぞれ係合せしめて上下方向に
係止してなることを特徴とする支承。It consists of an upper shoe that is fixed to an upper structure such as a bridge girder, a bearing member that slides on the upper shoe, a support member that holds the support member, and a lower shoe that is fixed to a lower structure such as a bridge pier that supports the support member. For the support, the lower shoe has a chevron-shaped groove on the upper surface that runs perpendicular to the bridge axis, and notches are formed at the lower ends of both sides in the direction perpendicular to the bridge axis. The upper shoe is formed with a stepped portion having a notch at both ends in the direction perpendicular to the bridge axis. With the block, fix the side block to the declaration, fit the lower end hook part into the notch recess of the lower shoe, and fit the upper end hook part into the notch part of the upper shoe, and engage with the step part respectively, and move in the vertical direction. A bearing characterized by being locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15836981U JPS5935606Y2 (en) | 1981-10-26 | 1981-10-26 | bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15836981U JPS5935606Y2 (en) | 1981-10-26 | 1981-10-26 | bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5863209U JPS5863209U (en) | 1983-04-28 |
| JPS5935606Y2 true JPS5935606Y2 (en) | 1984-10-02 |
Family
ID=29950868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15836981U Expired JPS5935606Y2 (en) | 1981-10-26 | 1981-10-26 | bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5935606Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104254650B (en) * | 2011-11-30 | 2017-12-19 | 郝苏 | A kind of ballistic support structure of antiseismic disaster similar with other |
-
1981
- 1981-10-26 JP JP15836981U patent/JPS5935606Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5863209U (en) | 1983-04-28 |
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