JP2011231503A - Structure displacement restricting device - Google Patents

Structure displacement restricting device Download PDF

Info

Publication number
JP2011231503A
JP2011231503A JP2010101778A JP2010101778A JP2011231503A JP 2011231503 A JP2011231503 A JP 2011231503A JP 2010101778 A JP2010101778 A JP 2010101778A JP 2010101778 A JP2010101778 A JP 2010101778A JP 2011231503 A JP2011231503 A JP 2011231503A
Authority
JP
Japan
Prior art keywords
stopper
plate
opening
peripheral surface
lower 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.)
Granted
Application number
JP2010101778A
Other languages
Japanese (ja)
Other versions
JP2011231503A5 (en
JP5571446B2 (en
Inventor
Yuichi Matsui
裕一 松井
Yoshihiro Hosoi
義弘 細井
Yoshiya Moriya
佳也 守谷
Hiroshi Kibe
洋 木部
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.)
SE Corp
Original Assignee
SE 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 SE Corp filed Critical SE Corp
Priority to JP2010101778A priority Critical patent/JP5571446B2/en
Publication of JP2011231503A publication Critical patent/JP2011231503A/en
Publication of JP2011231503A5 publication Critical patent/JP2011231503A5/ja
Application granted granted Critical
Publication of JP5571446B2 publication Critical patent/JP5571446B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Bridges Or Land Bridges (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a displacement restricting device being capable of restricting a relative displacement of an upper structure with respect to a lower structure, which is connected via an insulating device like a laminated rubber bearing as is the case with a bridge beam and a bridge pier or a ground structure and a foundation, and is mainly installed between an upper structure and a lower structure separated from each other, potentially and mainly causing a relative movement in a horizontal direction, and whose buffer material exerts a buffer function efficiently even when the upper structure makes a relative movement in a vertical direction with respect to the lower structure.SOLUTION: A displacement restricting device 1 installed between an upper structure 7 and a lower structure 8 that are separately constructed comprises: an upper plate 2 which is directly or indirectly connected to the upper structure 7 and has an opening 23 in the central part of the flat surface; and a lower plate 3 which is directly or indirectly connected to the lower structure 8. A stopper 4 that is inserted into the opening 23 of the upper plate 2 and secures a clearance between an inner peripheral surface of the opening 23 and the stopper 4 is connected the lower plate 3, and buffer material 5 is mounted on the inner peripheral surface of the opening 23 so as to absorb the impact of the collision with the stopper 4.

Description

本発明は例えば橋桁と橋脚、あるいは地上構造物と基礎の組み合わせのように積層ゴム支承等の絶縁装置を介して接続され、主として水平方向に相対移動を生じ得る、互いに分離した上部構造と下部構造との間に設置され、上部構造の下部構造に対する相対変位を制限する構造物の変位制限装置に関するものである。   The present invention is connected via an insulating device such as a laminated rubber bearing such as a bridge girder and a pier, or a combination of a ground structure and a foundation, and can cause relative movement mainly in the horizontal direction. It is related with the displacement limiting apparatus of the structure which is installed between these and restrict | limits the relative displacement with respect to the lower structure of an upper structure.

例えば橋桁と橋脚(橋台を含む)のように積層ゴム支承、弾性滑り支承等の絶縁装置を介して互いに水平方向に相対移動自在に接続される上部構造と下部構造との間には、上部構造の下部構造に対する水平方向と鉛直方向の相対移動量を制限するための変位制限装置が設置される(特許文献1〜3参照)。   For example, an upper structure between an upper structure and a lower structure that are connected to each other in a horizontal direction through an insulating device such as a laminated rubber bearing or an elastic sliding bearing such as a bridge girder and an abutment (including an abutment). A displacement limiting device for limiting the amount of relative movement in the horizontal direction and the vertical direction with respect to the lower structure is installed (see Patent Documents 1 to 3).

絶縁装置は地震時における下部構造の振動が上部構造に伝達されないよう、下部構造の振動を遮断する機能を持ち、上部構造の下部構造に対する相対移動を許容することで、下部構造の振動時にも上部構造が振動しない状態に維持する働きをする。   The insulation device has a function to block the vibration of the lower structure so that the vibration of the lower structure at the time of earthquake is not transmitted to the upper structure, and allows the relative movement of the upper structure with respect to the lower structure. It works to keep the structure from vibrating.

変位制限装置は絶縁装置が許容する上部構造の下部構造に対する相対移動量が一定量を超えないように水平方向と鉛直方向に制限を掛ける役目を持ち、一定量を超える相対移動が生じたときに上部構造に固定される上部プレートと、下部構造に固定される下部プレートが互いに水平方向と鉛直方向に係止することで、上部構造の下部構造に対する相対移動量を制限する(特許文献1〜3参照)。   The displacement limiter serves to limit the horizontal and vertical directions so that the relative movement of the upper structure to the lower structure allowed by the insulation device does not exceed a certain amount, and when a relative movement exceeding a certain amount occurs. The upper plate fixed to the upper structure and the lower plate fixed to the lower structure are locked in the horizontal direction and the vertical direction to limit the relative movement amount of the upper structure to the lower structure (Patent Documents 1 to 3). reference).

特開2001−349093号公報(請求項1、段落0016〜0036、図1、図4)JP 2001-349093 A (Claim 1, paragraphs 0016 to 0036, FIGS. 1 and 4) 特開2006−312842号公報(請求項1、段落0018〜0036、図6、図7)JP 2006-31842 A (Claim 1, paragraphs 0018 to 0036, FIGS. 6 and 7) 特開2008−115639号公報(請求項1、段落0009〜0020、図1〜図4)JP 2008-115639 A (Claim 1, paragraphs 0009 to 0020, FIGS. 1 to 4)

上記文献の内、特許文献3のように上部構造が下部構造に対して水平方向に相対移動を生じたときに、下部プレート(第1ストッパ部材1)に固定、あるいは一体化しているストッパ(係止用上向き突起2)が上部プレート(第2ストッパ部材3)の平面上の中央部に形成されている開口(係止用下向き開口凹部4)に係止する状態になることによって相対移動量を制限する構造では、ストッパの外周面と開口の内周面が互いに接触、あるいは衝突することになるため、両者間には接触時の衝撃を緩和するための緩衝材を介在させることが必要になる。   Among the above documents, when the upper structure moves relative to the lower structure in the horizontal direction as in Patent Document 3, a stopper (engagement) fixed to or integrated with the lower plate (first stopper member 1). The locking upward projection 2) is locked in the opening (locking downward opening recess 4) formed in the central portion on the plane of the upper plate (second stopper member 3), thereby reducing the relative movement amount. In the restricting structure, the outer peripheral surface of the stopper and the inner peripheral surface of the opening come into contact with each other or collide with each other. Therefore, it is necessary to interpose a shock-absorbing material between the two to alleviate the impact at the time of contact. .

特許文献3では上部プレートの開口内周面に係止するストッパを下部プレートに一体化させ、筒状に形成していることから、緩衝材(緩衝用筒状体18)の周長が短くて済むよう、ストッパの外周面に緩衝材を接着等、固定(装着)している。   In Patent Document 3, a stopper that locks to the inner peripheral surface of the opening of the upper plate is integrated with the lower plate and formed into a cylindrical shape. Therefore, the circumferential length of the cushioning material (buffering cylindrical body 18) is short. In order to finish, the buffer material is fixed (attached) to the outer peripheral surface of the stopper by bonding or the like.

しかしながら、緩衝材をストッパの外周面に固定した場合には、緩衝材(筒状体)が軸方向(鉛直方向)に、開口が形成される板部分(内向きフランジ27)の厚さを超えるのに十分な長さ(幅)を持たなければ、上部構造と下部構造の水平方向の相対移動と共に、鉛直方向の相対移動が生じたときに、緩衝材が開口の板部分の厚さの範囲から外れ、ストッパの緩衝材以外の部分が開口の内周面に接触する可能性がある。   However, when the cushioning material is fixed to the outer peripheral surface of the stopper, the cushioning material (tubular body) exceeds the thickness of the plate portion (inward flange 27) in which the opening is formed in the axial direction (vertical direction). If there is not enough length (width), the cushioning material is within the range of the thickness of the plate part of the opening when the relative movement in the vertical direction occurs together with the relative movement in the horizontal direction of the upper structure and the lower structure. There is a possibility that parts other than the cushioning material of the stopper come into contact with the inner peripheral surface of the opening.

従って特許文献3において緩衝材が板部分の厚さの範囲から外れないようにする上では、「常に緩衝材の幅が板部分の開口の幅(厚さ)の範囲内にあること」の要件を備える必要があると考えられるが、ここではこの要件がないため、ストッパの緩衝材以外の部分が開口の内周面に接触する可能性を秘めている。   Therefore, in Patent Document 3, in order to prevent the cushioning material from deviating from the thickness range of the plate portion, the requirement that “the width of the cushioning material is always within the range of the opening width (thickness) of the plate portion”. However, since there is no such requirement here, there is a possibility that portions other than the cushioning material of the stopper come into contact with the inner peripheral surface of the opening.

本発明は上記背景より、上部構造が下部構造に対して鉛直方向の相対移動を生じたときにも、緩衝材が緩衝の機能を有効に発揮する形態の変位制限装置を提案するものである。   In view of the above background, the present invention proposes a displacement limiting device in which the cushioning material effectively exhibits a cushioning function even when the upper structure causes a vertical relative movement with respect to the lower structure.

請求項1に記載の発明の構造物の変位制限装置は、水平方向に相対移動を生じ得る、互いに分離した上部構造と下部構造との間に設置され、前記上部構造に直接、もしくは間接的に接合され、平面上の中央部に開口を有する上部プレートと、前記下部構造に直接、もしくは間接的に接合される下部プレートを備え、前記上部構造の前記下部構造に対する相対変位を制限する変位制限装置において、
前記下部プレートには前記上部プレートの前記開口を挿通し、前記開口の内周面との間にクリアランスを確保するストッパが接続され、
前記開口の内周面に、前記ストッパとの接触時の衝撃を緩和する緩衝材が装着されていることを構成要件とする。
The structure displacement limiting device according to the first aspect of the present invention is installed between an upper structure and a lower structure separated from each other, which can cause relative movement in a horizontal direction, and directly or indirectly to the upper structure. Displacement limiting device that includes an upper plate that is joined and has an opening in the center on a plane, and a lower plate that is joined directly or indirectly to the lower structure, and restricts relative displacement of the upper structure with respect to the lower structure. In
A stopper that secures a clearance between the lower plate and the inner peripheral surface of the opening is inserted through the opening of the upper plate,
It is a constituent requirement that a shock-absorbing material that alleviates an impact at the time of contact with the stopper is attached to the inner peripheral surface of the opening.

「上部プレートが上部構造に直接、もしくは間接的に接合される」とは、上部プレートが上部構造に直接、ボルト接合等の手段によって接合(固定)される場合と、上部プレートが上部構造に直接、接合(固定)されている中間部材にボルト接合等の手段によって間接的に上部構造に接合(固定)される場合があることを言う。図1、図2は上部プレート2が上部構造7に直接、接合されている場合を示している。   “The upper plate is joined directly or indirectly to the upper structure” means that the upper plate is joined (fixed) directly to the upper structure by means such as bolt joining, and the upper plate is directly joined to the upper structure. In other words, the intermediate member being joined (fixed) may be indirectly joined (fixed) to the upper structure by means such as bolt joining. 1 and 2 show the case where the upper plate 2 is directly joined to the upper structure 7.

同様に「下部プレートが下部構造に直接、もしくは間接的に接合される」とは、下部プレートが下部構造に直接、ボルト接合等の手段によって接合(固定)される場合と、下部プレートが下部構造に直接、接合(固定)されている中間部材にボルト接合等の手段によって間接的に下部構造に接合(固定)される場合があることを言う。図1、図2は下部プレート3が中間部材としての「調整プレート6」を介して間接的に下部構造8に接合されている場合を示している。   Similarly, “the lower plate is joined directly or indirectly to the lower structure” means that the lower plate is joined (fixed) directly to the lower structure by means such as bolt joining, and the lower plate is joined to the lower structure. The intermediate member that is directly joined (fixed) may be indirectly joined (fixed) to the lower structure by means such as bolt joining. 1 and 2 show a case where the lower plate 3 is indirectly joined to the lower structure 8 via an “adjustment plate 6” as an intermediate member.

ストッパが「上部プレートの開口の内周面との間にクリアランスを確保する」とは、ストッパが上部プレートの開口を挿通した状態で、水平断面で見たときに開口の平面積よりストッパの断面積が小さく、ストッパの外周面と開口の内周面との間にクリアランス(空隙:水平距離)が確保されることを言う。   The stopper means “to secure clearance between the upper plate opening and the inner peripheral surface” when the stopper is inserted through the upper plate opening and viewed from a horizontal cross section. The area is small, and a clearance (gap: horizontal distance) is secured between the outer peripheral surface of the stopper and the inner peripheral surface of the opening.

緩衝材は上部プレートの開口内周面の、ストッパ外周面との間のクリアランスの範囲内に接着、付着(塗布)、巻き付け等により装着(固定)される。開口内周面に緩衝材が装着された状態で、ストッパが開口内で上部プレートに対して水平方向に相対移動(相対水平移動)可能な状態が確保される。緩衝材は開口の内周面に沿い、周方向に連続して(連続的に)、または断続的に装着される。断続的に装着される場合、緩衝材はストッパの外周面が直接、開口内周面に接触することがない程度の間隔を開口の周方向に置いて配置されればよい。   The cushioning material is mounted (fixed) by adhesion, adhesion (application), winding, or the like within the clearance range between the inner peripheral surface of the opening of the upper plate and the outer peripheral surface of the stopper. In a state where the cushioning material is mounted on the inner peripheral surface of the opening, a state is ensured in which the stopper can move relative to the upper plate in the horizontal direction (relative horizontal movement) within the opening. The cushioning material is continuously (continuously) or intermittently attached in the circumferential direction along the inner peripheral surface of the opening. In the case of intermittent mounting, the cushioning material may be arranged at an interval in the circumferential direction of the opening so that the outer peripheral surface of the stopper does not directly contact the inner peripheral surface of the opening.

緩衝材が上部プレートの開口内周面に装着された状態で、ストッパが開口内で水平方向に相対移動可能な状態は緩衝材の表面(外周面)とストッパ外周面との間にクリアランスが確保されることにより得られるが、見かけ上は必ずしも緩衝材表面とストッパ外周面との間にクリアランスが存在する必要はなく、緩衝材自体がストッパ外周面との接触時に収縮することができれば、ストッパの開口に対する相対移動可能な状態は確保される。   When the cushioning material is mounted on the inner peripheral surface of the opening of the upper plate and the stopper is relatively movable in the horizontal direction within the opening, a clearance is secured between the surface of the cushioning material (outer peripheral surface) and the outer peripheral surface of the stopper. However, it is not always necessary to have a clearance between the surface of the buffer material and the outer peripheral surface of the stopper, and if the buffer material itself can contract when contacting the stopper outer peripheral surface, A state of relative movement with respect to the opening is ensured.

但し、図1、図2に示すように上部構造と下部構造間の許容されるべき相対移動量が橋軸方向と橋軸直角方向とで相違し、橋軸方向に許容されるべき相対移動量が大きく設定されることから、それに応じて開口の対向する内周面間距離は橋軸方向と橋軸直角方向とで相違し、橋軸方向の開口内周面間距離が大きい。図1は矢印方向が橋軸直角方向であることを示し、図2は矢印方向が橋軸方向であることを示している。   However, as shown in FIGS. 1 and 2, the relative movement amount that should be allowed between the upper structure and the lower structure is different between the bridge axis direction and the direction perpendicular to the bridge axis, and the relative movement amount that should be allowed in the bridge axis direction. Therefore, the distance between the inner peripheral surfaces facing each other is different in the bridge axis direction and the direction perpendicular to the bridge axis, and the distance between the inner peripheral surfaces in the bridge axis direction is large. FIG. 1 shows that the arrow direction is the direction perpendicular to the bridge axis, and FIG. 2 shows that the arrow direction is the bridge axis direction.

この関係で、橋軸方向には開口内周面とストッパ外周面との間のクリアランスが大きいのに対し、橋軸直角方向にはクリアランスが小さいため、図1では開口23内周面に装着される緩衝材5とストッパ4との間の見かけ上のクリアランスがあまり存在せず、ストッパ4(下部プレート3)と開口23(上部プレート2)との相対移動時に緩衝材5が水平方向に収縮する状態にあるように見えている。   In this relation, the clearance between the inner peripheral surface of the opening and the outer peripheral surface of the stopper is large in the bridge axis direction, whereas the clearance is small in the direction perpendicular to the bridge axis. There is not much apparent clearance between the cushioning material 5 and the stopper 4, and the cushioning material 5 contracts in the horizontal direction when the stopper 4 (lower plate 3) and the opening 23 (upper plate 2) move relative to each other. Looks like it is in a state.

緩衝材が上部プレートの開口内周面に装着されることで、下部プレートと上部プレートとの間の鉛直方向の相対移動の程度(移動量)に関係なく、下部プレートと上部プレート間に水平方向の相対移動が生じたときには、必ず緩衝材がストッパ外周面に接触する状態になる。   By mounting the cushioning material on the inner peripheral surface of the opening of the upper plate, the horizontal direction between the lower plate and the upper plate is independent of the degree of vertical relative movement (movement amount) between the lower plate and the upper plate. When the relative movement occurs, the buffer material is always in contact with the outer peripheral surface of the stopper.

例えば下部プレートと上部プレートが鉛直方向に相対移動しながら、相対水平移動したときには、緩衝材のストッパへの接触位置が鉛直方向の相対移動を伴わない場合よりストッパ軸方向のいずれかの向きにずれるだけであり、緩衝材がストッパ外周面のいずれかの範囲に接触する状態は得られる。従って上部構造と下部構造間に鉛直方向の相対移動が生じたときにも、ストッパが上部プレートの開口内周面に直接、接触する事態が回避されるため、緩衝材が機能しない事態の発生は防止され、緩衝材が常に緩衝の機能を有効に発揮することになる。   For example, when the lower plate and the upper plate move relative to each other while moving relative to each other in the vertical direction, the contact position of the cushioning material with the stopper is shifted in either direction of the stopper axis than when the relative movement in the vertical direction is not involved. Thus, a state in which the cushioning material is in contact with any range of the outer peripheral surface of the stopper is obtained. Therefore, even when a relative movement in the vertical direction occurs between the upper structure and the lower structure, the situation where the cushioning material does not function is prevented because the situation where the stopper directly contacts the inner peripheral surface of the opening of the upper plate is avoided. Therefore, the cushioning material always exhibits the function of cushioning effectively.

前記のように特許文献3ではストッパ(係止用上向き突起2)の、緩衝材の装着部分以外の部分が、開口が形成されるフランジ(内向きフランジ27)の内周面に接触する可能性がある。これに対し、本発明では下部プレートと上部プレートとの間の鉛直方向の相対移動に関係なく、緩衝材が必ずストッパ外周面に接触する状態になるため、上部構造と下部構造間に鉛直方向の相対移動が生じたときにも、ストッパが上部プレートの開口内周面に直接、接触する事態を回避することができる利点がある。   As described above, in Patent Document 3, a portion of the stopper (upward protrusion 2 for locking) other than the mounting portion of the cushioning material may come into contact with the inner peripheral surface of the flange (inward flange 27) where the opening is formed. There is. In contrast, in the present invention, the cushioning material is always in contact with the outer peripheral surface of the stopper regardless of the vertical relative movement between the lower plate and the upper plate. Even when relative movement occurs, there is an advantage that it is possible to avoid a situation where the stopper directly contacts the inner peripheral surface of the opening of the upper plate.

本発明の緩衝材は前記のように上部プレートの開口内周面の周方向に連続的に、もしくは断続的に配置されるが、開口が形成される上部プレートのフランジ部の上面には上部構造の下部構造に対する鉛直方向下向きの相対移動時にストッパの上端部(頭部)の下面が接触する可能性がある。またフランジ部の下面には上部構造の下部構造に対する鉛直方向下向きの相対移動時に、ストッパが接続される下部プレートの上面が接触する可能性があるから、これらの接触を回避する上では、図1、図2に示すように緩衝材5がフランジ部22の上面側と下面側へ突出した状態にあることが適切である。   The cushioning material of the present invention is continuously or intermittently arranged in the circumferential direction of the inner peripheral surface of the opening of the upper plate as described above, but the upper structure is formed on the upper surface of the flange portion of the upper plate where the opening is formed. There is a possibility that the lower surface of the upper end portion (head) of the stopper may come into contact with the lower structure of the stopper when moving vertically downward. Further, since the upper surface of the lower plate to which the stopper is connected may come into contact with the lower surface of the flange portion when the upper structure is moved downward relative to the lower structure, in order to avoid such contact, FIG. As shown in FIG. 2, it is appropriate that the cushioning material 5 is in a state of protruding to the upper surface side and the lower surface side of the flange portion 22.

但し、上部構造と下部構造間の相対水平移動により緩衝材にストッパの外周面が接触しながら、鉛直方向の相対移動によりフランジ部の上面と下面のいずれかにストッパ、もしくは下部プレートが接触する可能性がある場合にも、緩衝材が適度な弾性を有し、圧縮力の作用方向に収縮するときに、直交する方向に膨出できる性質を有すれば、フランジ部へのストッパ、もしくは下部プレートの直接の接触は回避可能である。この場合、緩衝材へのストッパの水平方向の接触により緩衝材がその方向に収縮しながら、収縮方向に直交する方向である鉛直方向に膨出することで、開口内周面(フランジ部の上面と下面)から突出するため、ストッパとフランジ部の直接の接触が回避される。   However, the stopper or the lower plate can come into contact with either the upper surface or the lower surface of the flange portion by the relative movement in the vertical direction while the outer peripheral surface of the stopper is in contact with the cushioning material by the relative horizontal movement between the upper structure and the lower structure. Even if there is a property, if the cushioning material has moderate elasticity and can bulge in the orthogonal direction when contracting in the direction of action of the compressive force, it will be a stopper to the flange part or the lower plate The direct contact of can be avoided. In this case, the buffer material contracts in that direction by the contact of the stopper with the buffer material in the horizontal direction, and bulges in the vertical direction, which is a direction orthogonal to the contraction direction. And the lower surface), direct contact between the stopper and the flange portion is avoided.

ストッパは鉛直方向に上部構造が下部構造から遠ざかる向き(鉛直上向き)の相対移動が生じたときに、上部プレートの下部プレートからの抜け出しを阻止するために、上部プレートのフランジ部の上面に接触する必要がある。この関係から、ストッパの上部にはストッパ(下部プレート(下部構造))が上部プレート(上部構造)に対して相対的に降下したときに開口回りのフランジ部に下向きに係止するよう、ストッパ本体部より水平断面積が大きい形状の頭部が形成される。   The stopper contacts the upper surface of the flange portion of the upper plate in order to prevent the upper plate from coming out of the lower plate when the relative movement in the direction in which the upper structure moves away from the lower structure (vertically upward) occurs in the vertical direction. There is a need. From this relationship, the stopper main body is placed on the top of the stopper so that when the stopper (lower plate (lower structure)) is lowered relative to the upper plate (upper structure), it is locked downward to the flange around the opening. A head having a shape having a larger horizontal cross-sectional area than the portion is formed.

上記のように開口の対向する内周面間距離は橋軸方向に大きく、橋軸直角方向には小さいため、下部プレートが上部プレートに対して相対的に降下したとき、ストッパの頭部はストッパの橋軸直角方向両側に位置するフランジ部に係止することになる。   As described above, the distance between the inner peripheral surfaces facing each other is large in the direction of the bridge axis and small in the direction perpendicular to the bridge axis, so when the lower plate descends relative to the upper plate, the stopper head It will be locked to the flange part located on both sides of the bridge axis perpendicular direction.

ストッパの頭部は下部プレートが上部プレートに対して相対的に降下したときに上部プレートのフランジ部上面に下向きに係止するから、ストッパは上部プレートのフランジ部に下向きに係止可能な状態で下部プレートに接続されるよう、上部プレートの開口を上方から挿通した状態で下部プレートに対して着脱自在に接続される。   The stopper head is locked downward on the upper surface of the flange of the upper plate when the lower plate is lowered relative to the upper plate, so the stopper can be locked downward on the flange of the upper plate. In order to be connected to the lower plate, it is detachably connected to the lower plate with the opening of the upper plate inserted from above.

「着脱自在に接続」とは、例えばストッパが螺合(ストッパ自身のねじ込み)によって下部プレートに接続されることを言う(請求項2)。「着脱自在」である理由は、着脱できなければ、下部プレートの上方に上部プレートを配置した状態で、ストッパを上部プレートの開口を通じて下部プレートに対して落とし込み、下部プレートに接続することができないことによる。   “Removably connected” means, for example, that the stopper is connected to the lower plate by screwing (screwing of the stopper itself) (claim 2). The reason why it is “detachable” is that if it cannot be attached or detached, the stopper cannot be dropped into the lower plate through the opening of the upper plate with the upper plate placed above the lower plate and cannot be connected to the lower plate. by.

ストッパが下部プレートに「着脱自在に接続」されることはこの他、ストッパの軸方向(鉛直方向)にストッパを下部プレートに形成されている孔に対して落とし込み、下部プレートを水平方向に貫通してストッパに到達する抜け止め用のピンやボルトをストッパの周囲から差し込むことによっても可能である。但し、ストッパ自身の螺合による(請求項2の)場合には抜け止めのためのピン等が不要であることと、その差し込みの操作も不要であることで、接続のための作業性がよい利点がある。   In addition to the fact that the stopper is “detachably connected” to the lower plate, the stopper is dropped into the hole formed in the lower plate in the axial direction (vertical direction) of the stopper and penetrates the lower plate horizontally. It is also possible to insert a retaining pin or bolt that reaches the stopper from around the stopper. However, when the stopper itself is screwed (Claim 2), it is not necessary to use a pin or the like for retaining it, and the operation for inserting it is not necessary, so that the workability for connection is good. There are advantages.

ストッパ自身の螺合による場合、具体的には下部プレートの平面上の中央部に雌ねじ孔が形成され、ストッパは上部構造側から上部プレートの開口を挿通して下部プレートの雌ねじ孔に螺合する(請求項2)。この場合、上部プレートの上方からストッパを下部プレートに落とし込み、そのままストッパを軸回りに回転させるだけで下部プレートに接続することが可能であることで、下部プレート上への上部プレートの配置作業とストッパの接続作業を下部プレートの上方側である同一側で行えるため、ストッパの開口への挿通作業と下部プレートへの接続作業がし易く、作業性が高い利点がある。   When the stopper itself is screwed, specifically, a female screw hole is formed in the center of the lower plate in the plane, and the stopper is inserted into the female screw hole of the lower plate through the opening of the upper plate from the upper structure side. (Claim 2). In this case, it is possible to connect the lower plate to the lower plate by dropping the stopper onto the lower plate from above the upper plate and simply rotating the stopper around the axis. Since the connecting work can be performed on the same side, which is the upper side of the lower plate, the work of inserting the stopper into the opening and the connecting work to the lower plate are easy, and there is an advantage of high workability.

請求項2ではまた、ストッパが下部プレートに螺合手段によって分離自在に接続されることで、特許文献3のように開口に係止する頭部をストッパに対して分離自在に接続しておく必要がなく、頭部をストッパ(本体部)に一体化させた状態でストッパを成型しておくことができる。従って頭部がストッパから分離している場合(特許文献3)のようにストッパの下部プレートへの接続後に頭部をストッパに接続する操作を要しないため、分離している場合より作業数の削減が図られる。   According to the second aspect of the present invention, since the stopper is detachably connected to the lower plate by the screwing means, the head locked to the opening as in Patent Document 3 needs to be detachably connected to the stopper. The stopper can be molded in a state where the head is integrated with the stopper (main body portion). Therefore, since the operation of connecting the head to the stopper is not required after connecting the stopper to the lower plate as in the case where the head is separated from the stopper (Patent Document 3), the number of operations is reduced compared to the case where the head is separated. Is planned.

請求項2では頭部をストッパ(本体部)に一体化させておくことができるが、必ずしも頭部をストッパに一体化させておく必要はなく、分離させておくことも可能である。   In claim 2, the head can be integrated with the stopper (main body), but the head does not necessarily have to be integrated with the stopper and can be separated.

上部構造に接合され、開口を有する上部プレートと、下部構造に接合される下部プレートと、上部プレートの開口を挿通し、下部プレートに接続されるストッパを有する変位制限装置において、開口の内周面に、ストッパとの接触時の衝撃を緩和する緩衝材を装着しているため、下部プレートと上部プレートとの間の鉛直方向の相対移動の程度(移動量)に関係なく、下部プレートと上部プレート間に水平方向の相対移動が生じたときに、必ず緩衝材がストッパ外周面に接触する状態を得ることができる。   An inner peripheral surface of an opening in a displacement limiting device having an upper plate joined to the upper structure and having an opening, a lower plate joined to the lower structure, and a stopper inserted through the opening of the upper plate and connected to the lower plate In addition, since the shock absorber is used to reduce the impact when contacting the stopper, the lower plate and the upper plate can be used regardless of the degree of vertical relative movement (movement amount) between the lower plate and the upper plate. When a horizontal relative movement occurs in the meantime, it is possible to obtain a state in which the cushioning material is in contact with the outer peripheral surface of the stopper.

この結果、上部構造と下部構造間に鉛直方向の相対移動が生じたときにも、ストッパが上部プレートの開口内周面に直接、接触する自体が回避され、緩衝材が機能しない事態の発生は防止されるため、緩衝材が常に緩衝の機能を有効に発揮する状態が得られる。
As a result, even when a vertical relative movement occurs between the upper structure and the lower structure, it is avoided that the stopper directly contacts the inner peripheral surface of the opening of the upper plate, and the occurrence of a situation in which the cushioning material does not function. Therefore, a state in which the cushioning material always effectively exhibits the cushioning function is obtained.

上部プレートを上部構造(橋桁)に接合し、下部プレートを下部構造(橋脚)に接合した変位制限装置の設置状態を示した縦断面図であり、変位制限装置を橋軸方向に見た様子を示している。It is a longitudinal cross-sectional view showing the installation state of the displacement limiter with the upper plate joined to the upper structure (bridge girder) and the lower plate joined to the lower structure (pier pier). Show. 図1に直交する方向の変位制限装置の設置状態を示した縦断面図であり、変位制限装置を橋軸直角方向に見た様子を示している。It is the longitudinal cross-sectional view which showed the installation state of the displacement limiting device of the direction orthogonal to FIG. 1, and has shown a mode that the displacement limiting device was seen in the bridge axis orthogonal direction. (a)は上部構造に接合される上部プレートを示した平面図、(b)は(a)のx−x線断面図、(c)は(a)のy−y線断面図である。(A) is the top view which showed the upper plate joined to an upper structure, (b) is the xx sectional view taken on the line of (a), (c) is the yy sectional view taken on the line (a). (a)は下部構造に接合される下部プレートを示した平面図、(b)は(a)のx−x線断面図である。(A) is the top view which showed the lower plate joined to a lower structure, (b) is the xx sectional view taken on the line of (a). (a)はストッパを示した平面図、(b)は(a)の一部断面立面図である。(A) is the top view which showed the stopper, (b) is the partial cross section elevation view of (a). 図5に示すストッパを図4に示す下部プレートに接続(螺合)した様子を示した一部断面立面図である。FIG. 6 is a partially sectional elevational view showing a state in which the stopper shown in FIG. 5 is connected (screwed) to the lower plate shown in FIG. 4. (a)は変位制限装置を上部構造と下部構造間に設置するときに上部プレートと下部プレートを仮に連結しておくための、図1、図2に示す仮固定プレートを示した立面図、(b)は(a)の側面図である。(A) is an elevation view showing the temporary fixing plate shown in FIGS. 1 and 2 for temporarily connecting the upper plate and the lower plate when the displacement limiting device is installed between the upper structure and the lower structure; (B) is a side view of (a). 図7に示す仮固定プレートを下部プレートに仮止めするときに使用される図1に示すスペーサを示した断面図である。It is sectional drawing which showed the spacer shown in FIG. 1 used when temporarily fixing the temporarily fixing plate shown in FIG. 7 to a lower plate. 変位制限装置の上部構造と下部構造間への具体的な設置例を示した、橋軸方向に見たときの縦断面図である。It is a longitudinal cross-sectional view when it sees in the bridge-axis direction which showed the specific example of installation between the upper structure and lower structure of a displacement limiting device. 変位制限装置の上部構造と下部構造間への具体的な設置例を示した、橋軸直角方向に見たときの縦断面図である。It is the longitudinal cross-sectional view when it sees in the orthogonal direction of a bridge axis which showed the specific example of installation between the upper structure and lower structure of a displacement limiting device.

以下、図面を用いて本発明を実施するための最良の形態を説明する。   Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

図1、図2は水平方向に相対移動を生じ得る、互いに分離した上部構造7と下部構造8との間に設置され、上部構造7に直接、もしくは間接的に接合され、平面上の中央部に開口23を有する上部プレート2と、下部構造8に直接、もしくは間接的に接合される下部プレート3を備え、上部構造7の下部構造8に対する相対変位を制限する変位制限装置1の構成例と上部構造7と下部構造8間への設置例を示す。上部構造7と下部構造8間の水平方向の相対移動には、鉛直方向の相対移動を伴う場合も含む。   1 and 2 are installed between an upper structure 7 and a lower structure 8 separated from each other and can be moved relative to each other in the horizontal direction. A configuration example of a displacement limiting device 1 that includes an upper plate 2 having an opening 23 and a lower plate 3 that is directly or indirectly joined to the lower structure 8 and limits relative displacement of the upper structure 7 with respect to the lower structure 8; An example of installation between the upper structure 7 and the lower structure 8 is shown. The relative movement in the horizontal direction between the upper structure 7 and the lower structure 8 includes a case in which a relative movement in the vertical direction is accompanied.

下部プレート3には上部プレート2の開口23を上方から挿通し、開口23の内周面との間にクリアランスを確保するストッパ4が接続され、開口23の内周面に、ストッパ4との接触時の衝撃を緩和する緩衝材5が装着(固定)される。   The lower plate 3 is inserted through the opening 23 of the upper plate 2 from above, and a stopper 4 is secured between the opening 23 and the inner peripheral surface of the opening 23. The stopper 4 is in contact with the inner peripheral surface of the opening 23. A cushioning material 5 is attached (fixed) to alleviate the impact at the time.

変位制限装置1を構成する上部プレート2と下部プレート3、及びストッパ4は主に鋼材から形成されるが、コンクリートで製作されることもある。また上部プレート2等が中実断面で成型されることにより質量が大きくなるような場合には、鋼板(プレート)の組み立てによって製作されることもある。   The upper plate 2, the lower plate 3, and the stopper 4 constituting the displacement limiting device 1 are mainly made of steel, but may be made of concrete. Further, when the mass is increased by molding the upper plate 2 or the like with a solid cross section, it may be manufactured by assembling a steel plate (plate).

上部構造7と下部構造8の組み合わせは主に図9、図10に示すように橋桁と橋脚(橋台)、あるいは地上構造物と基礎であるが、構造的に分離し、上部構造7と下部構造8間に積層ゴム支承、弾性滑り支承、滑り支承等の絶縁装置20が介在し、少なくとも水平方向の相対移動を生じ得る構造体の組み合わせ全般を含む。例えば建築構造物の場合には地上構造物と基礎(杭を含む)との間の他、地上階の中間層で構造的に分離することもあるため、分離した地上構造物の上層階と下層階の組み合わせもある。   The combination of the upper structure 7 and the lower structure 8 is mainly a bridge girder and a pier (abutment) or a ground structure and a foundation as shown in FIG. 9 and FIG. Insulating device 20 such as a laminated rubber bearing, an elastic sliding bearing, a sliding bearing, etc. is interposed between the eight, and includes all combinations of structures that can cause at least horizontal relative movement. For example, in the case of a building structure, it may be structurally separated between the ground structure and the foundation (including piles), or in the middle layer of the ground floor. There are also floor combinations.

図9、図10は上部構造7がコンクリート製(造)の床版71と鋼製の桁部材72からなる橋桁で、下部構造8がコンクリート造の橋脚(橋台)である場合の変位制限装置1の設置例を示す。ここでは、変位制限装置1の上部プレート2を後述のボルト9による接合のし易さから、桁部材72に接合し、下部プレート3を橋脚(下部構造8)に定着された受け部材81に接合している。   FIGS. 9 and 10 show a displacement limiting device 1 when the upper structure 7 is a bridge girder composed of a concrete (made) floor slab 71 and a steel girder member 72, and the lower structure 8 is a concrete pier (abutment). An installation example is shown. Here, the upper plate 2 of the displacement limiting device 1 is joined to the girder member 72 and the lower plate 3 is joined to the receiving member 81 fixed to the bridge pier (lower structure 8) for ease of joining with the bolt 9 described later. is doing.

受け部材81はアンカー82によって下部構造8である橋脚(橋台)に定着させられる定着板81aと、変位制限装置1を支持し、下部プレート3が接合される受け板81bと、定着板81aと受け板81bの一体性、あるいは受け板81bの安定性(剛性)を確保するリブプレート81c等から構成される。絶縁装置20は例えば図10に示すように変位制限装置1に併設されるが、必ずしも変位制限装置1の付近に設置される必要はない。   The receiving member 81 supports the fixing plate 81a fixed to the pier (abutment) as the lower structure 8 by the anchor 82, the receiving plate 81b to which the lower plate 3 is joined, and the fixing plate 81a. The rib plate 81c and the like ensure the integrity of the plate 81b or the stability (rigidity) of the receiving plate 81b. For example, as shown in FIG. 10, the insulating device 20 is provided side by side with the displacement limiting device 1, but is not necessarily installed near the displacement limiting device 1.

上部プレート2は図3に示すように長方形状、あるいは楕円形状等、橋軸方向と橋軸直角方向とで長さが相違する平面形状をし、平面上の周囲の、上部構造7に直接、もしくは間接的に接合されるための接合部21と、その内周側の、開口23が形成されるフランジ部22の2部分を持つ。フランジ部22は接合部21の内周側(開口23側)へ張り出す部分を指し、接合部21はフランジ部22の厚さを含む厚さを有する。   As shown in FIG. 3, the upper plate 2 has a rectangular shape or an elliptical shape such as a planar shape having different lengths in the direction of the bridge axis and the direction perpendicular to the bridge axis, and directly on the upper structure 7 around the plane. Or it has two parts, the junction part 21 for joining indirectly, and the flange part 22 in which the opening 23 is formed in the inner peripheral side. The flange portion 22 indicates a portion protruding to the inner peripheral side (opening 23 side) of the joint portion 21, and the joint portion 21 has a thickness including the thickness of the flange portion 22.

接合部21は図1に示すように上部構造7にボルト9で接合される場合の、ボルト9の螺入長さが確保され、後述するストッパ4の頭部41が鉛直方向に納まるだけの十分な厚さを持つ。フランジ部22の厚さ分を除く接合部21の厚さはその厚さの範囲内にストッパ4の頭部41が納まった状態で、頭部41の下面との間に、上部プレート2と下部プレート3との間の鉛直方向の相対移動を許容するためのクリアランスが確保されるだけの大きさに設定される。図面ではフランジ部22の厚さ分を除く接合部21の厚さに、ストッパ4の頭部41の厚さの2倍以上の大きさを確保している。   As shown in FIG. 1, the joining portion 21 is sufficient to secure the screwing length of the bolt 9 and to fit the head 41 of the stopper 4 described later in the vertical direction when joining the upper structure 7 with the bolt 9. Thickness. The thickness of the joint portion 21 excluding the thickness of the flange portion 22 is such that the upper plate 2 and the lower portion are placed between the lower surface of the head portion 41 and the head portion 41 of the stopper 4 within the thickness range. The size is set so as to ensure a clearance for allowing the relative movement in the vertical direction with respect to the plate 3. In the drawing, the thickness of the joint portion 21 excluding the thickness of the flange portion 22 is ensured to be twice or more the thickness of the head portion 41 of the stopper 4.

フランジ部22は接合部21の内周側に配置されるストッパ4の頭部41が納まり、その頭部41が内部で鉛直方向に上部プレート2に対して相対移動可能な空間である凹部24を形成するよう、接合部21の下部プレート3寄りの位置から接合部21の内周側へ張り出すように形成される。図面ではフランジ部22の厚さを上部プレート2全体の厚さの半分以下(40%程度)にしているが、必ずしもその必要はない。   The flange portion 22 accommodates a head portion 41 of the stopper 4 disposed on the inner peripheral side of the joint portion 21, and a concave portion 24 that is a space in which the head portion 41 can move relative to the upper plate 2 in the vertical direction. It forms so that it may protrude from the position near the lower plate 3 of the junction 21 to the inner peripheral side of the junction 21. In the drawing, the thickness of the flange portion 22 is less than or equal to half the thickness of the entire upper plate 2 (about 40%), but this is not always necessary.

ストッパ4の頭部41が納まる凹部24は水平方向には(平面上は)その内部に頭部41が納まった状態で、頭部41が凹部24内で水平2方向(橋軸方向と橋軸直角方向)に上部プレート2に対して相対移動可能な大きさを持つ。   The concave portion 24 in which the head portion 41 of the stopper 4 is accommodated is horizontal (on a plane) with the head portion 41 accommodated therein, and the head portion 41 has two horizontal directions in the concave portion 24 (the bridge axis direction and the bridge shaft). It has a size that can move relative to the upper plate 2 in a direction perpendicular to the upper surface.

具体的には図1、図2に示すように水平2方向に、ストッパ4の頭部41を除く本体部42の外周面が開口23の内周面に接触する以前に、頭部41の外周面が接合部21の内周面(凹部24に面する面)に接触しない程度から、本体部42の外周面が開口23の内周面に装着される緩衝材5に接触しない程度までの範囲のクリアランスが確保される。この範囲には本体部42の外周面が緩衝材5に接触した後、緩衝材5が収縮しきるまで、頭部41の外周面が接合部21の内周面に接触しない程度のクリアランスが含まれる。   Specifically, as shown in FIGS. 1 and 2, before the outer peripheral surface of the main body 42 excluding the head 41 of the stopper 4 contacts the inner peripheral surface of the opening 23 in two horizontal directions, The range from the extent that the surface does not contact the inner peripheral surface of the joint portion 21 (the surface facing the recess 24) to the extent that the outer peripheral surface of the main body portion 42 does not contact the cushioning material 5 attached to the inner peripheral surface of the opening 23. Clearance is ensured. This range includes such a clearance that the outer peripheral surface of the head 41 does not contact the inner peripheral surface of the joint portion 21 after the outer peripheral surface of the main body 42 comes into contact with the buffer material 5 until the buffer material 5 is fully contracted. .

但し、本体部42の外周面が緩衝材5に接触した後、緩衝材5が収縮しきるときに、緩衝材5の収縮の程度によって頭部41の外周面が接合部21の内周面に接触する可能性がある場合には接合部21の内周面に緩衝材5を装着(固定)することもある。   However, after the outer peripheral surface of the main body 42 comes into contact with the buffer material 5, the outer peripheral surface of the head 41 contacts the inner peripheral surface of the joint portion 21 depending on the degree of contraction of the buffer material 5 when the buffer material 5 is fully contracted. If there is a possibility, the cushioning material 5 may be attached (fixed) to the inner peripheral surface of the joint portion 21.

緩衝材5は開口23の内周面に、周方向に沿って連続的に、または断続的に装着される。緩衝材5が断続的に装着される場合、開口23の周方向には上部プレート2と下部プレート3の相対水平移動時に開口23の内周面にストッパ4の本体部42が直接、接触せず、必ず開口23の内周面とストッパ4の本体部42との間に緩衝材5が介在するように装着される。   The cushioning material 5 is continuously or intermittently attached to the inner peripheral surface of the opening 23 along the circumferential direction. When the cushioning material 5 is intermittently attached, the body portion 42 of the stopper 4 does not directly contact the inner peripheral surface of the opening 23 in the circumferential direction of the opening 23 when the upper plate 2 and the lower plate 3 move relative to each other. The cushioning material 5 is always mounted between the inner peripheral surface of the opening 23 and the main body portion 42 of the stopper 4.

緩衝材5の開口23内周面への装着方法は任意であるが、基本的には緩衝材5の種類によって決まり、例えば発泡系材料の場合は材料の付着や塗布によってそのまま装着されるか、接着剤によって装着され、ゴム系材料の場合には接着剤、もしくはねじ等によって装着される。   Although the mounting method to the inner peripheral surface of the opening 23 of the cushioning material 5 is arbitrary, it is basically determined by the type of the cushioning material 5, for example, in the case of a foam-based material, it is mounted as it is by attaching or applying the material, It is attached by an adhesive, and in the case of a rubber-based material, it is attached by an adhesive or a screw.

図3に示すように上部プレート2の接合部21のいずれかの部分には上部構造7に直接、もしくは間接的にボルト9等により接合されるための複数個のボルト孔(雌ねじ孔)2aが形成される。図1、図2では上部プレート2を直接、上部構造7の底面に接触(当接)させた状態で上部構造7を貫通するボルト9によって上部構造7に接合していることから、接合部21の上面からボルト孔2aを形成している。   As shown in FIG. 3, a plurality of bolt holes (female screw holes) 2a to be joined to the upper structure 7 directly or indirectly by bolts 9 or the like are formed in any part of the joint portion 21 of the upper plate 2. It is formed. In FIG. 1 and FIG. 2, the upper plate 2 is directly contacted (contacted) with the bottom surface of the upper structure 7 and is joined to the upper structure 7 by the bolt 9 penetrating the upper structure 7. The bolt hole 2a is formed from the upper surface of the.

図1、図2は特に上部プレート2の接合部21が接合される上部構造7(橋桁)の一部が鋼製のフランジ(桁部材72のフランジ)である場合の例を示しているが、上部構造7はコンクリート造(コンクリート製)の場合もある。図1、図2の場合、上部構造7のフランジを直接、貫通するボルト9が接合部21のボルト孔2aに螺入するため、ボルト孔2aは接合部21の上面に上方(上部構造7側)から鉛直方向に形成される。ボルト孔2aは接合部21に直接、形成される他、例えば上部プレート2がコンクリート製のような場合、別途形成された袋状のナット(袋ナット)を埋め込むことによっても形成される。   1 and 2 show an example in which a part of the upper structure 7 (bridge girder) to which the joint portion 21 of the upper plate 2 is joined is a steel flange (the flange of the girder member 72). The superstructure 7 may be made of concrete (made of concrete). In the case of FIG. 1 and FIG. 2, since the bolt 9 that directly penetrates the flange of the upper structure 7 is screwed into the bolt hole 2a of the joint portion 21, the bolt hole 2a is located above the upper surface of the joint portion 21 (upper structure 7 side). ) In the vertical direction. The bolt hole 2a is formed directly in the joint portion 21. In addition, for example, when the upper plate 2 is made of concrete, the bolt hole 2a is also formed by embedding a separately formed bag-shaped nut (cap nut).

この他、例えば接合部21が接合される上部構造7の一部がコンクリート造である場合のように、接合部21の側面と上部構造7間に、2方向に片を有するL形の金物(山形鋼)を跨設し、各片を貫通するボルトにより接合するような場合には、接合部21の側面にボルト孔2aを形成することもある。   In addition to this, for example, when a part of the upper structure 7 to which the joint portion 21 is joined is made of concrete, an L-shaped hardware having a piece in two directions between the side surface of the joint portion 21 and the upper structure 7 ( In the case of joining with a bolt penetrating each piece, the bolt hole 2 a may be formed on the side surface of the joint portion 21.

下部プレート3はストッパ4の本体部42が螺合によって接続される場合には、図4に示すように平面上の中央部に、ストッパ4の本体部42の下端部が接続されるための雌ねじ孔31が形成された板形状をし、雌ねじ孔31の周囲の部分(本体部32)において下部構造8に直接、もしくは間接的にボルト9等により接合(固定)される。この場合、ストッパ4は上部構造7側から上部プレート2の開口23を挿通して下部プレート3の雌ねじ孔31に螺合することにより下部プレート3に接続される。   When the lower plate 3 is connected to the main body 42 of the stopper 4 by screwing, as shown in FIG. 4, a female screw for connecting the lower end of the main body 42 of the stopper 4 to the central portion on the plane. It has a plate shape in which holes 31 are formed, and is joined (fixed) to the lower structure 8 directly or indirectly by bolts 9 or the like at a portion (main body portion 32) around the female screw holes 31. In this case, the stopper 4 is connected to the lower plate 3 by being inserted from the upper structure 7 side through the opening 23 of the upper plate 2 and screwed into the female screw hole 31 of the lower plate 3.

図5にストッパ4の単体を、図6にストッパ4が図4に示す下部プレート3の雌ねじ孔31に螺合した様子を示している。図面ではストッパ4の本体部42と頭部41が回転体形状(円柱状)をしている場合を示しているが、ストッパ4の形状は必ずしも回転体である必要はなく、角柱状に形成されることもある。   FIG. 5 shows the stopper 4 alone, and FIG. 6 shows the stopper 4 screwed into the female screw hole 31 of the lower plate 3 shown in FIG. Although the drawing shows a case where the main body 42 and the head 41 of the stopper 4 have a rotating body shape (columnar shape), the shape of the stopper 4 does not necessarily need to be a rotating body and is formed in a prismatic shape. Sometimes.

図示しないが、例えば下部プレート3の側面を、ストッパ4の軸に直交する方向(水平方向)に貫通し、本体部42に到達するピンやボルトによってストッパ4が下部プレート3に接続されるような場合には、中央部の雌ねじ孔31に代え、下部プレート3の側面とストッパ4の本体部42に水平方向の雌ねじ孔等が形成される。   Although not shown, for example, the stopper 4 is connected to the lower plate 3 by a pin or bolt that penetrates the side surface of the lower plate 3 in a direction (horizontal direction) perpendicular to the axis of the stopper 4 and reaches the main body 42. In this case, a horizontal female screw hole or the like is formed in the side surface of the lower plate 3 and the main body 42 of the stopper 4 in place of the female screw hole 31 in the center.

図1、図2では下部構造8の上面と上部構造7の下面との間の距離の程度により、必要に応じて使用される調整プレート6を下部構造8に直接、接合し、この調整プレート6に下部プレート3を接合することにより、下部プレート3を間接的に下部構造8に接合している。但し、調整プレート6はその役目から使用されない場合もあるため、下部プレート3は直接、下部構造8に接合されることもある。   In FIG. 1 and FIG. 2, the adjustment plate 6 used as necessary is directly joined to the lower structure 8 according to the degree of the distance between the upper surface of the lower structure 8 and the lower surface of the upper structure 7. The lower plate 3 is indirectly bonded to the lower structure 8 by bonding the lower plate 3 to the lower structure 8. However, since the adjustment plate 6 may not be used from its role, the lower plate 3 may be directly joined to the lower structure 8.

下部プレート3が下部構造8に直接、接合されることもあるため、図面では下部プレート3の、雌ねじ孔31を除いた本体部32の下面側からボルト孔3aを形成している。図面では特に、調整プレート6が、下部プレート3と重なる部分以外の領域で下部構造8に接合されるよう、調整プレート6の平面積を下部プレート3の平面積より大きくしていることから、下部プレート3が調整プレート6と重なる部分で調整プレート6にボルト9によって接合されるようにボルト孔3aを配列している。   Since the lower plate 3 may be directly joined to the lower structure 8, in the drawing, the bolt hole 3a is formed from the lower surface side of the main body 32 excluding the female screw hole 31 of the lower plate 3. In particular, in the drawing, since the adjustment plate 6 has a larger plane area than the lower plate 3 so that the adjustment plate 6 is joined to the lower structure 8 in a region other than the portion overlapping the lower plate 3, Bolt holes 3 a are arranged so that the plate 3 is joined to the adjustment plate 6 by bolts 9 at the portion where the plate 3 overlaps with the adjustment plate 6.

下部プレート3が調整プレート6と重なる部分で調整プレート6に接合される関係から、両者を接合するボルト9は調整プレート6の下面側から調整プレート6を貫通することになるため、調整プレート6の、下部プレート3のボルト孔3aに対応した位置にもボルト孔6aが形成される。下部プレート3を調整プレート6に接合するボルト9は図9、図10に示すように調整プレート6のボルト孔6aを下面側から貫通して下部プレート3のボルト孔3aに螺入する。   Since the lower plate 3 is joined to the adjustment plate 6 at a portion where it overlaps the adjustment plate 6, the bolt 9 that joins both passes through the adjustment plate 6 from the lower surface side of the adjustment plate 6. The bolt hole 6a is also formed at a position corresponding to the bolt hole 3a of the lower plate 3. As shown in FIGS. 9 and 10, the bolt 9 that joins the lower plate 3 to the adjustment plate 6 penetrates the bolt hole 6 a of the adjustment plate 6 from the lower surface side and is screwed into the bolt hole 3 a of the lower plate 3.

変位制限装置1の、下部構造8と上部構造7間への設置時には、上部プレート2と下部プレート3が自由に相対移動することによる不安定状態でのボルト9による接合作業を回避するために、上部プレート2と下部プレート3は図1、図2に示すように、図7に示す仮止め用の仮固定プレート10とそれを貫通する仮固定ボルト11によって互いに連結される。   When the displacement limiting device 1 is installed between the lower structure 8 and the upper structure 7, in order to avoid the joining work by the bolt 9 in an unstable state due to the relative movement of the upper plate 2 and the lower plate 3 freely, As shown in FIGS. 1 and 2, the upper plate 2 and the lower plate 3 are connected to each other by a temporary fixing plate 10 for temporary fixing shown in FIG. 7 and a temporary fixing bolt 11 penetrating therethrough.

仮固定プレート10は上部プレート2と下部プレート3の側面に跨って配置され、各仮固定ボルト11は仮固定プレート10を貫通してそれぞれ上部プレート2と下部プレート3に到達する。各仮固定ボルト11は上部プレート2と下部プレート3に側面から形成されたボルト孔2b、3bに螺入する。   The temporary fixing plate 10 is disposed across the side surfaces of the upper plate 2 and the lower plate 3, and each temporary fixing bolt 11 passes through the temporary fixing plate 10 and reaches the upper plate 2 and the lower plate 3, respectively. Each temporary fixing bolt 11 is screwed into bolt holes 2b and 3b formed in the upper plate 2 and the lower plate 3 from the side surfaces.

図面では仮固定プレート10を上部プレート2と下部プレート3の橋軸直角方向を向いた側面に配置しているが、図1に示すように上部プレート2と下部プレート3の橋軸直角方向の幅の大きさが異なり、下部プレート3の幅が上部プレート2の幅より小さいことから、下部プレート3の側面と仮固定プレート10との間の空隙を埋めるために、両者間に図8に示すスペーサ12を配置している。   In the drawing, the temporary fixing plate 10 is disposed on the side face of the upper plate 2 and the lower plate 3 facing the direction perpendicular to the bridge axis, but the width of the upper plate 2 and the lower plate 3 in the direction perpendicular to the bridge axis as shown in FIG. Since the width of the lower plate 3 is smaller than the width of the upper plate 2, the spacer shown in FIG. 8 is interposed between them to fill the gap between the side surface of the lower plate 3 and the temporary fixing plate 10. 12 is arranged.

仮固定プレート10の、上部プレート2に螺入する仮固定ボルト11が挿通する挿通孔10aと、下部プレート3に螺入する仮固定ボルト11が挿通する挿通孔10bは図7−(a)に示すようにそれぞれ鉛直方向と水平方向に長い形状に形成されており、仮固定プレート10は上部プレート2と下部プレート3間の2方向の寸法誤差、すなわちそれぞれの製作誤差、あるいは設置状態での施工誤差に追従可能になっている。   The insertion hole 10a through which the temporary fixing bolt 11 to be screwed into the upper plate 2 and the insertion hole 10b through which the temporary fixing bolt 11 to be screwed into the lower plate 3 are inserted are shown in FIG. 7- (a). As shown in the figure, each is formed in a shape that is long in the vertical direction and in the horizontal direction, and the temporary fixing plate 10 is dimensional error in two directions between the upper plate 2 and the lower plate 3, that is, each manufacturing error or construction in the installed state. It is possible to follow the error.

仮固定プレート10と仮固定ボルト11によって上部プレート2と下部プレート3が仮固定された状態の変位制限装置1は下部構造8と上部構造7間へは図1、図3に示すような吊り込み用のアイボルト13にワイヤ等を通し、揚重機によって吊り上げられて搬入され、設置される。   The displacement limiting device 1 in a state where the upper plate 2 and the lower plate 3 are temporarily fixed by the temporary fixing plate 10 and the temporary fixing bolt 11 is suspended between the lower structure 8 and the upper structure 7 as shown in FIGS. A wire or the like is passed through the eyebolt 13 for use, lifted by a lifting machine, loaded, and installed.

1……変位制限装置、20……絶縁装置、
2……上部プレート、21……接合部、22……フランジ部、23……開口、24……凹部、2a……ボルト孔(ボルト9用)、2b……ボルト孔(仮固定ボルト11用)、
3……下部プレート、31……雌ねじ孔、32……本体部、3a……ボルト孔(ボルト9用)、3b……ボルト孔(仮固定ボルト11用)、
4……ストッパ、41……頭部、42……本体部、
5……緩衝材、
6……調整プレート、6a……ボルト孔(ボルト9用)、
7……上部構造、71……床版、72……桁部材、
8……下部構造、81……受け部材、81a……定着板、81b……受け板、81c……リブプレート、82……アンカー、
9……ボルト、
10……仮固定プレート、10a……挿通孔、10b……挿通孔、
11……仮固定ボルト、12……スペーサ、13……アイボルト。
1 ... Displacement limiting device, 20 ... Insulating device,
2 ... Upper plate, 21 ... Joint, 22 ... Flange, 23 ... Opening, 24 ... Recess, 2a ... Bolt hole (for bolt 9), 2b ... Bolt hole (for temporary fixing bolt 11) ),
3 ... Lower plate, 31 ... Female screw hole, 32 ... Main body, 3a ... Bolt hole (for bolt 9), 3b ... Bolt hole (for temporary fixing bolt 11),
4 ... stopper, 41 ... head, 42 ... main body,
5 …… Buffer material,
6 ... adjustment plate, 6a ... bolt hole (for bolt 9),
7 ... Superstructure, 71 ... Floor slab, 72 ... Girder member,
8: Substructure, 81: Receiving member, 81a: Fixing plate, 81b: Receiving plate, 81c: Rib plate, 82: Anchor,
9 …… Bolt,
10 ... Temporary fixing plate, 10a ... Insertion hole, 10b ... Insertion hole,
11 ... Temporary fixing bolt, 12 ... Spacer, 13 ... Eye bolt.

Claims (2)

水平方向に相対移動を生じ得る、互いに分離した上部構造と下部構造との間に設置され、前記上部構造に直接、もしくは間接的に接合され、平面上の中央部に開口を有する上部プレートと、前記下部構造に直接、もしくは間接的に接合される下部プレートを備え、前記上部構造の前記下部構造に対する相対変位を制限する変位制限装置であり、
前記下部プレートには前記上部プレートの前記開口を挿通し、前記開口の内周面との間にクリアランスを確保するストッパが接続され、
前記開口の内周面に、前記ストッパとの接触時の衝撃を緩和する緩衝材が装着されていることを特徴とする構造物の変位制限装置。
An upper plate installed between the separated upper structure and the lower structure, which can cause relative movement in the horizontal direction, directly or indirectly joined to the upper structure, and having an opening in a central portion on a plane; A displacement limiting device that includes a lower plate that is directly or indirectly joined to the lower structure, and that limits relative displacement of the upper structure relative to the lower structure;
A stopper that secures a clearance between the lower plate and the inner peripheral surface of the opening is inserted through the opening of the upper plate,
A displacement restricting device for a structure, wherein a cushioning material for reducing an impact at the time of contact with the stopper is attached to an inner peripheral surface of the opening.
前記下部プレートの平面上の中央部に雌ねじ孔が形成されており、前記ストッパは前記上部構造側から前記上部プレートの前記開口を挿通して前記下部プレートの前記雌ねじ孔に螺合していることを特徴とする請求項1に記載の構造物の変位制限装置。
A female screw hole is formed at a central portion on the plane of the lower plate, and the stopper is inserted through the opening of the upper plate from the upper structure side and screwed into the female screw hole of the lower plate. The displacement limiting device for a structure according to claim 1.
JP2010101778A 2010-04-27 2010-04-27 Structure displacement limiter Active JP5571446B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010101778A JP5571446B2 (en) 2010-04-27 2010-04-27 Structure displacement limiter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010101778A JP5571446B2 (en) 2010-04-27 2010-04-27 Structure displacement limiter

Publications (3)

Publication Number Publication Date
JP2011231503A true JP2011231503A (en) 2011-11-17
JP2011231503A5 JP2011231503A5 (en) 2013-05-23
JP5571446B2 JP5571446B2 (en) 2014-08-13

Family

ID=45321095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010101778A Active JP5571446B2 (en) 2010-04-27 2010-04-27 Structure displacement limiter

Country Status (1)

Country Link
JP (1) JP5571446B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014169542A (en) * 2013-03-01 2014-09-18 Nippon Pillar Packing Co Ltd Temporary fixture for bearing
JP2015094094A (en) * 2013-11-11 2015-05-18 阪神高速道路株式会社 Bridge structure and method of reinforcing existing bridge
CN106436558A (en) * 2016-11-18 2017-02-22 南昌大学 Three-way limiting buffering bridge anti-seismic stop dog structure and arranging and installing method
CN106436559A (en) * 2016-11-18 2017-02-22 南昌大学 Transverse-direction low-yield-point energy dissipation type steel bridge anti-seismic stop block structure and arranging method
CN110777637A (en) * 2019-10-24 2020-02-11 深圳大学 Anti-inclination damping composite limiting device and bridge
KR102096742B1 (en) * 2019-05-30 2020-04-02 박지연 Seismic Isolator for Distribution Board

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59213808A (en) * 1983-05-19 1984-12-03 財団法人鉄道総合技術研究所 Support apparatus with stopper for structure
JP2006265936A (en) * 2005-03-24 2006-10-05 Yokohama Rubber Co Ltd:The Elastic bearing for bridge
JP2006316535A (en) * 2005-05-13 2006-11-24 Kawaguchi Metal Industries Co Ltd Bridge composite bearing
JP2008025683A (en) * 2006-07-20 2008-02-07 Kawaguchi Metal Industries Co Ltd Fixed bearing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59213808A (en) * 1983-05-19 1984-12-03 財団法人鉄道総合技術研究所 Support apparatus with stopper for structure
JP2006265936A (en) * 2005-03-24 2006-10-05 Yokohama Rubber Co Ltd:The Elastic bearing for bridge
JP2006316535A (en) * 2005-05-13 2006-11-24 Kawaguchi Metal Industries Co Ltd Bridge composite bearing
JP2008025683A (en) * 2006-07-20 2008-02-07 Kawaguchi Metal Industries Co Ltd Fixed bearing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014169542A (en) * 2013-03-01 2014-09-18 Nippon Pillar Packing Co Ltd Temporary fixture for bearing
JP2015094094A (en) * 2013-11-11 2015-05-18 阪神高速道路株式会社 Bridge structure and method of reinforcing existing bridge
CN106436558A (en) * 2016-11-18 2017-02-22 南昌大学 Three-way limiting buffering bridge anti-seismic stop dog structure and arranging and installing method
CN106436559A (en) * 2016-11-18 2017-02-22 南昌大学 Transverse-direction low-yield-point energy dissipation type steel bridge anti-seismic stop block structure and arranging method
CN106436559B (en) * 2016-11-18 2019-02-01 南昌大学 A kind of suitable bridge is to low-yield steel energy-dissipating type bridge shock-proof check block structure and method for arranging
KR102096742B1 (en) * 2019-05-30 2020-04-02 박지연 Seismic Isolator for Distribution Board
CN110777637A (en) * 2019-10-24 2020-02-11 深圳大学 Anti-inclination damping composite limiting device and bridge

Also Published As

Publication number Publication date
JP5571446B2 (en) 2014-08-13

Similar Documents

Publication Publication Date Title
JP5571446B2 (en) Structure displacement limiter
KR101575743B1 (en) Vibration damper utilizing wedges
JP2013159945A5 (en)
JP2012225411A (en) Anti-seismic device with built-in damper with deformation restriction function
KR101607531B1 (en) Bridge expansion joint with shear type bolt
JP6337014B2 (en) Railway rail fixing device
JP6337230B2 (en) Seismic joint structure
JP4628491B1 (en) Structure joining structure and fixing device for joining structures used therein
JP5934033B2 (en) Seismic reinforcement structure and method using compression braces
JP4974254B1 (en) Thin bearing device for bridge
JP2008057291A (en) Sliding type anchor for earthquake-resisting building
JP6678006B2 (en) Slide bearing device for structures
JP2013224535A (en) Insulation/separation type joint structure for pile foundation
KR20100086184A (en) Beam-pillar joint construction
JP2011089305A (en) Bearing device for bridge
JP6479371B2 (en) Joint structure of seismic control frame
JP6239802B1 (en) Structural support device
JP5978363B1 (en) Connection structure of connecting slab
JP6474575B2 (en) Brace seismic reinforcement structure and seismic reinforcement method for existing buildings
JP5753890B2 (en) Unit building
JP5706952B1 (en) Bridge structure and existing bridge reinforcement method
KR101944216B1 (en) Seismic resistant reinforcement assembly for building
JP5926985B2 (en) Method for reinforcing steel structure and steel structure
JP6503177B2 (en) Reinforcement frame
KR101627512B1 (en) H-Pile for Concrete Structure

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20130226

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130416

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20131108

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20131126

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20140124

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140617

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140626

R150 Certificate of patent or registration of utility model

Ref document number: 5571446

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250