JP4340680B2

JP4340680B2 - Upper lift-capable structure displacement limiter stopper device

Info

Publication number: JP4340680B2
Application number: JP2006301201A
Authority: JP
Inventors: 道也高田; 清孝佐々木; 健司田中
Original assignee: Sho Bond Corp; BBM Co Ltd
Current assignee: Sho Bond Corp; BBM Co Ltd
Priority date: 2006-11-07
Filing date: 2006-11-07
Publication date: 2009-10-07
Anticipated expiration: 2026-11-07
Also published as: JP2008115639A

Description

本発明は、下部構造物と上部構造物との間に設置されている鋼製支承装置と組んで耐震性能を向上させるために増設して設けられる構造物変位制限用ストッパ装置に関し、特に、橋梁その他の構造物が、水平方向および特に上下方向の地震力により変位して橋台、橋脚その他の下部構造物から上下方向に大きく離れたり、落下するのを防止するための上揚力対応型の構造物変位制限用ストッパ装置に関するものである。 The present invention relates to a structure displacement limiting stopper device that is provided in combination with a steel bearing device installed between a lower structure and an upper structure in order to improve seismic performance, and more particularly to a bridge. A structure that supports uplift to prevent other structures from being displaced by horizontal and particularly vertical seismic forces and moving away from the abutments, piers, and other substructures in the vertical direction or falling. The present invention relates to a displacement limiting stopper device.

従来、弾性層を備えていない支承装置として、例えば、支承板支承あるいは線支承が知られていると共に、図１１（ａ）（ｂ）（ｃ）に示すような、ピン（横軸）に支圧力を作用させる形態の鋼製支承装置１９ａ、あるいは図１１（ｄ）（ｅ）（ｆ）に示すようなピンにせん断力を作用させるような鋼製支承装置１９ｂ等の鋼製支承装置１９ｃが知られている。このような鋼製支承装置１９ｃは鋼材により製作されている支承装置であり、換言すると、弾性的に上部構造物の鉛直荷重を支承する弾性支承装置と異なり、弾性層を備えていないため、弾性的に上部構造物の鉛直荷重を支承しない鋼製支承装置１９ｃにより上部構造物７を支承する形態である。また、弾性層を備え弾性的に上部構造物を支承する弾性支承装置により上部構造物７を支承する形態も知られている。 Conventionally, as a support device not provided with an elastic layer, for example, a support plate support or a wire support is known, and a pin (horizontal axis) as shown in FIGS. 11 (a), 11 (b), and 11 (c) is supported. A steel bearing device 19c, such as a steel bearing device 19a in which a pressure is applied, or a steel bearing device 19b in which a shearing force is applied to a pin as shown in FIGS. 11 (d) (e) (f). Are known. Such a steel bearing device 19c is a bearing device made of steel. In other words, unlike the elastic bearing device that elastically supports the vertical load of the upper structure, the elastic bearing device is not provided. In particular, the upper structure 7 is supported by a steel bearing device 19c that does not support the vertical load of the upper structure. Also known is a form in which the upper structure 7 is supported by an elastic bearing device that includes an elastic layer and elastically supports the upper structure.

通常、支承装置単独では、タイプＡ相当の耐震性能はあるが、耐震性能を向上させるために、別途、変位制限用ストッパ装置を設置し、これらの組み合わせで、タイプＢ相当に耐震性能を向上させることが知られている。
そのための変位制限用ストッパ装置の一形態として、図９および図１０に示すように、下部構造物６の上部に固定される第１ストッパ部材３５の上面の中央に係止用上向き突起３６を一体に設け、かつ上部構造物７の下部に固定される第２ストッパ部材３の下面の中央に係止用下向き開口凹部４を設け、その下向き開口凹部３４内に前記上向き突起２を配置し、その上向き突起２と下向き開口凹部３４との間に上部構造物７の伸縮を許容する間隙Ｌを設けた構造のものが知られている（例えば、特許文献１参照）。
実公平０２−４８４９４ Normally, the bearing device alone has seismic performance equivalent to type A, but in order to improve seismic performance, a stopper device for displacement restriction is separately installed, and these combinations improve seismic performance equivalent to type B. It is known.
As one form of the displacement limiting stopper device for that purpose, as shown in FIGS. 9 and 10, a locking upward protrusion 36 is integrated in the center of the upper surface of the first stopper member 35 fixed to the upper portion of the lower structure 6. And a locking downward opening recess 4 is provided in the center of the lower surface of the second stopper member 3 fixed to the lower part of the upper structure 7, and the upward protrusion 2 is disposed in the downward opening recess 34, There is known a structure in which a gap L that allows expansion and contraction of the upper structure 7 is provided between the upward protrusion 2 and the downward opening recess 34 (see, for example, Patent Document 1).
Fairness 02-48494

図９および図１０に示す構造の構造物変位制限用ストッパ装置３７の場合は、下向き開口凹部３４とその内側に配置される上向き突起３６とを備えたストッパ装置であり、第１ストッパ部材３５と第２ストッパ部材３８とを上下方向に係合連結できる構造ではないので、地震時において上揚力が作用し、上下の構造物が相対的に上下方向に離反するように移動した場合、その上下方向移動に対して抵抗する構造ではなく、すなわち上揚力に抵抗できないという問題がある。そのため、上部構造物の鉛直荷重を支承する鉛直荷重支承装置に、上揚力抵抗機能を付与した複雑な構造の支承装置としたり、別個に上揚力に抵抗する装置を設置するなどコストが高くなるなどの問題がある。
したがって、構造物変位制限用ストッパ装置が、所定以上の上揚力作用時に抵抗できる構造の構造物変位制限用ストッパ装置であると、既設の支承設備の耐震性能を向上させるための耐震補強補修時において、そのような所定以上の上揚力作用時に抵抗できる構造の構造物変位制限用ストッパ装置を設置できると、より経済的に、支承装置と共同して、レベル２の地震動に対応可能なタイプＢ相当の支承設備に補修可能になるため、このような上揚力に対応可能な構造物変位制限装置が望まれていた。 The structure displacement limiting stopper device 37 having the structure shown in FIGS. 9 and 10 is a stopper device including a downward opening recess 34 and an upward protrusion 36 disposed on the inside thereof. Since it is not a structure that can be engaged and connected with the second stopper member 38 in the vertical direction, when an uplift force acts during an earthquake and the upper and lower structures move relatively away from each other in the vertical direction, the vertical direction There is a problem that it is not a structure that resists movement, that is, it cannot resist uplift. For this reason, the vertical load bearing device that supports the vertical load of the upper structure has a complicated structure with a lifting force resistance function, or a separate device that resists the lifting force increases the cost. There is a problem.
Therefore, when the structure displacement limiting stopper device is a structure displacement limiting stopper device capable of resisting when the lifting force is greater than a predetermined level, it can be used at the time of seismic reinforcement to improve the seismic performance of the existing bearing equipment. If it is possible to install a structure displacement limiting stopper device capable of resisting when the lifting force acts above a predetermined level, it is more economical to cooperate with the bearing device in order to cope with level 2 earthquake motion. Therefore, there is a demand for a structure displacement limiting device that can cope with such a lifting force.

本発明は、前記のような地震時における上揚力対応型の構造物変位制限用ストッパ装置を提供することを目的とするものである。 An object of the present invention is to provide a structure for limiting the displacement of a structure that supports uplift during an earthquake as described above.

前記の目的を達成するために第１発明の上揚力対応型の構造物変位制限用ストッパ装置においては、上部に支承を備えた下部構造物とその上方の上部構造物との間に設けられる構造物変位制限用ストッパ装置であり、下部構造物に固定される第１ストッパ部材の上面に係止用上向き突起が設けられ、上部構造物に固定される第２ストッパ部材の下面に係止用下向き開口凹部が設けられ、前記係止用上向き突起が係止用下向き開口凹部内に配置され、第１ストッパ部材における係止用上向き突起の上部にねじ接合により部材が接合されて横方向に張り出す外向きフランジが設けられ、係止用下向き開口凹部を備えている第２ストッパ部材の下端部には、前記外向きフランジよりも下位のレベルにおいて前記係止用下向き開口凹部の内側に張り出す内向きフランジが設けられ、かつ橋軸直角方向に対向する内向きフランジ内壁面間の幅寸法よりも、外向きフランジの橋軸直角方向の幅寸法は大きくされて、上揚力作用時に前記外向きフランジと内向きフランジが係合することで上揚力に抵抗可能にされ、前記第１ストッパ部材は、下部構造物の上部側面に設けた増設支持部にボルトにより固定され、前記係止用上向き突起は地震時の下部構造物の変位に伴って当該係止用上向き突起と共に橋軸方向または橋軸直角方向に移動する弾性材料製の緩衝用筒状体が嵌合固定されている係止用上向き突起であり、横方向に張り出す前記外向きフランジの外径寸法は、前記緩衝用筒状体の外径寸法よりも大きくされ、前記外向きフランジの外径寸法と前記緩衝用筒状体の外径寸法との寸法差は、前記内向きフランジにおける内周壁面と前記上向き開口凹部における内周壁面との間の横方向の距離よりも小さくされて、地震時において、前記係止用上向き突起に第２ストッパ部材が衝突するように係合する場合に、前記上向き突起に嵌合固定された緩衝用筒状体により衝撃力を緩衝支承するようにされていることを特徴とする。
第２発明の上揚力対応型の構造物変位制限用ストッパ装置においては、上部に支承を備えた下部構造物とその上方の上部構造物との間に設けられる構造物変位制限用ストッパ装置であり、上部構造物に固定される第１ストッパ部材の下面に係止用下向き突起が設けられ、下部構造物に固定される第２ストッパ部材の上面に係止用上向き開口凹部が設けられ、前記係止用下向き突起が係止用上向き開口凹部内に配置され、第１ストッパ部材における係止用下向き突起の下部にねじ接合により部材が接合されて横方向に張り出す外向きフランジが設けられ、係止用上向き開口凹部を備えている第２ストッパ部材の上端部には、前記外向きフランジよりも上位のレベルにおいて前記係止用上向き開口凹部の内側に張り出す内向きフランジが設けられ、かつ橋軸直角方向に対向する内向きフランジ内壁面間の幅寸法よりも、外向きフランジの橋軸直角方向の幅寸法は大きくされて、上揚力作用時に前記外向きフランジと内向きフランジが係合することで上揚力に抵抗可能にされ、前記第２ストッパ部材は、下部構造物の上部側面に設けた増設支持部にボルトにより固定され、前記係止用下向き突起は地震時の下部構造物の変位に伴って当該係止用下向き突起と共に橋軸方向または橋軸直角方向に移動する弾性材料製の緩衝用筒状体が嵌合固定されている係止用下向き突起であり、横方向に張り出す前記外向きフランジの橋軸方向の外径寸法は、前記緩衝用筒状体の外径寸法よりも大きくされ、前記外向きフランジの外径寸法と前記緩衝用筒状体の外径寸法との寸法差は、前記内向きフランジにおける内周壁面と前記上向き開口凹部における内周壁面との間の横方向の距離よりも小さくされて、地震時において、前記係止用下向き突起に第２ストッパ部材が衝突するように係合する場合に、前記下向き突起に嵌合固定された緩衝用筒状体により衝撃力を緩衝支承するようにされていることを特徴とする。
第３発明では、第１発明の上揚力対応型の構造物変位制限用ストッパ装置において、前記の係止用上向き突起の上部に雄ねじ軸部が設けられ、その雄ねじ軸部に、係止用上向き突起の橋軸直角方向の外形寸法よりも大きいリング状雌ねじ部材がねじ込み固定され、そのリング状の雌ねじ部材により前記外向きフランジが形成されていることを特徴とする。
第４発明では、第１発明の構造物変位制限用ストッパ装置において、前記の係止用上向き突起の上部に雌ねじ孔が設けられ、その雌ねじ孔に、係止用上向き突起の橋軸直角方向の外形寸法よりも大きい頭部を有するボルトがねじ込み固定され、そのボルト頭部により、前記外向きフランジが形成されていることを特徴とする。
第５発明では、第２発明の上揚力対応型の構造物変位制限用ストッパ装置において、前記の係止用下向き突起の下部に雄ねじ軸部が設けられ、その雄ねじ軸部に、係止用下向き突起の橋軸直角方向の幅寸法よりも幅寸法の大きいリング状雌ねじ部材がねじ込み固定され、そのリング状の雌ねじ部材により、前記外向きフランジが形成されていることを特徴とする。
第６発明では、第２発明の上揚力対応型の構造物変位制限用ストッパ装置において、前記の係止用下向き突起の下部に雌ねじ孔が設けられ、その雌ねじ孔に、係止用下向き突起の橋軸直角方向の幅寸法よりも幅寸法の大きい頭部を有するボルトがねじ込み固定され、そのボルト頭部により、前記外向きフランジが形成されていることを特徴とする。 In order to achieve the above object, in the structure according to the first aspect of the invention, the structure for limiting the displacement of the structure is limited between a lower structure having a support on the upper part and an upper structure above the lower structure. This is a stopper device for restricting object displacement, and an upward protrusion for locking is provided on the upper surface of the first stopper member fixed to the lower structure, and downward for locking on the lower surface of the second stopper member fixed to the upper structure. An opening recess is provided, the locking upward projection is disposed in the locking downward opening recess, and a member is joined to the upper portion of the locking upward projection in the first stopper member by screw joining, so that it protrudes laterally. An outward flange is provided, and the lower end portion of the second stopper member provided with the downward opening recess for locking protrudes inside the downward opening recess for locking at a level lower than the outward flange. The width of the outward flange in the direction perpendicular to the bridge axis is larger than the width between the inner walls of the inward flange that is provided with the inward flange and faces in the direction perpendicular to the bridge axis. By engaging the flange and the inward flange, it is possible to resist the lifting force, and the first stopper member is fixed to the additional support provided on the upper side surface of the lower structure with a bolt , and the upward protrusion for locking Is a locking upward made of an elastic material buffering cylinder that moves in the direction of the bridge axis or in the direction perpendicular to the bridge axis along with the upward protrusion for locking along with the displacement of the substructure during an earthquake The outer diameter dimension of the outward flange that is a protrusion and projects in the lateral direction is larger than the outer diameter dimension of the cushioning cylinder, and the outer diameter dimension of the outer flange and the cushioning cylinder The dimensional difference from the outer diameter The distance between the inner peripheral wall surface of the inward flange and the inner peripheral wall surface of the upward opening recess is smaller than the lateral distance so that the second stopper member collides with the upward protrusion for locking during an earthquake. When engaged, an impact force is buffered and supported by a buffering cylindrical body fitted and fixed to the upward protrusion .
According to the second aspect of the invention, the structure for limiting the displacement of the upper displacement-supporting stopper device is a structure displacement limiting stopper device provided between the lower structure having a support on the upper portion and the upper structure above the lower structure. , engaging a downward projection is provided on the lower surface of the first stopper member fixed to the upper structure, the engagement for upward opening recess on the upper surface of the second stopper member is provided to be fixed to the lower structure, the engagement The locking downward projection is disposed in the locking upward opening recess, and an outward flange is provided at the lower portion of the locking downward projection of the first stopper member by screwing and protruding laterally. The upper end portion of the second stopper member provided with the locking upward opening recess is provided with an inward flange projecting inside the locking upward opening recess at a higher level than the outward flange. In addition, the width dimension in the direction perpendicular to the bridge axis of the outward flange is made larger than the width dimension between the inner wall surfaces of the inward flanges facing in the direction perpendicular to the bridge axis, and the outward flange and the inward flange are engaged when the lifting force is applied. The second stopper member is fixed to the additional support provided on the upper side surface of the lower structure with a bolt , and the downward protrusion for locking is the lower structure during an earthquake. Is a downward projection for locking, in which a cushioning tubular body made of an elastic material that moves in the direction of the bridge axis or the direction perpendicular to the bridge axis along with the downward projection for locking is fitted and fixed in the lateral direction. The outer diameter dimension of the projecting outward flange in the bridge axis direction is larger than the outer diameter dimension of the buffer tubular body, and the outer diameter dimension of the outward flange and the outer diameter dimension of the buffer tubular body The dimensional difference is the inward flange The distance between the inner peripheral wall surface and the inner peripheral wall surface of the upward opening recess is smaller than the lateral distance, and the second stopper member engages with the downward protrusion for locking during an earthquake. In this case, the impact force is buffered and supported by the buffering cylindrical body fitted and fixed to the downward projection .
According to a third aspect of the present invention, in the stopper device for limiting the displacement of the structure according to the first aspect of the invention, a male screw shaft portion is provided on the upper portion of the locking upward projection, and the male screw shaft portion is provided with an upward locking direction. A ring-shaped female screw member larger than the outer dimension of the projection in the direction perpendicular to the bridge axis is screwed and fixed, and the outward flange is formed by the ring-shaped female screw member.
According to a fourth aspect of the present invention, in the structure displacement limiting stopper device of the first aspect, a female screw hole is provided in an upper portion of the upward protrusion for locking, and the female screw hole has a direction perpendicular to the bridge axis of the upward protrusion for locking. A bolt having a head larger than the outer dimension is fixed by screwing, and the outward flange is formed by the bolt head.
According to a fifth aspect of the present invention, in the stopper device for restricting the displacement of the structure according to the second aspect of the present invention, a male screw shaft portion is provided below the locking downward projection, and the male screw shaft portion is provided with a downward locking direction. A ring-shaped female screw member having a larger width dimension than the width dimension of the projection in the direction perpendicular to the bridge axis is fixed by screwing, and the outward flange is formed by the ring-shaped female screw member.
According to a sixth aspect of the present invention, in the stopper device for limiting the displacement of the structure according to the second aspect of the present invention, a female screw hole is provided below the locking downward projection, and the locking downward projection is formed in the female screw hole. A bolt having a head having a width larger than the width in the direction perpendicular to the bridge axis is screwed and fixed, and the outward flange is formed by the bolt head.

第１および第２発明によると、地震時等に構造物に上揚力が作用し、下部構造物と構造物とが相対的に上下方向の移動した場合に、係止用上向き突起または係止用下向き突起にねじ接合により設けた部材による外向きフランジを内向きフランジに係合させることができ、そのため、上部構造物に作用する上揚力を上揚力対応型の構造物変位制限用ストッパ装置を介して下部構造物に確実に伝達させることができる。
また、地震時等において構造物または下部構造物が相対的に水平移動して、外向きフランジの下側に内向きフランジを確実に係合させて、構造物が下部構造物から外れて落下するのを確実に防止することができる。
第３発明によると、係止用上向き突起の上部に雄ねじ軸部が設けられ、その雄ねじ軸部に、係止用上向き突起の橋軸直角方向の幅寸法よりも幅寸法の大きいリング状雌ねじ部材がねじ込み固定され、そのリング状の雌ねじ部材により前記外向きフランジが形成されているので、係止用上向き突起の上部の雄ねじ軸部にリング状の雌ねじ部材を取り付けるだけで、容易に外向きフランジを形成することができると共に構造が簡単である等の効果がある。
第４発明によると、係止用上向き突起の上部に雌ねじ孔が設けられ、その雌ねじ孔に、係止用上向き突起の橋軸直角方向の幅寸法よりも幅寸法の大きい頭部を有するボルトがねじ込み固定され、そのボルト頭部により、前記外向きフランジが形成されているので、係止用上向き突起の上部の雌ねじ孔に幅寸法の大きい頭部を有するボルトを取り付けるだけで、容易に外向きフランジを形成することができると共に構造が簡単である等の効果がある。
第５発明によると、係止用下向き突起の下部に雄ねじ軸部が設けられ、その雄ねじ軸部に、係止用下向き突起の橋軸直角方向の幅寸法よりも幅寸法の大きいリング状雌ねじ部材がねじ込み固定され、そのリング状の雌ねじ部材により前記外向きフランジが形成されているので、係止用下向き突起の下部の雄ねじ軸部にリング状の雌ねじ部材を取り付けるだけで、容易に外向きフランジを形成することができると共に構造が簡単である等の効果がある。
第６発明によると、係止用下向き突起の下部に雌ねじ孔が設けられ、その雌ねじ孔に、係止用下向き突起の橋軸直角方向の幅寸法よりも幅寸法の大きい頭部を有するボルトがねじ込み固定され、そのボルト頭部により、前記外向きフランジが形成されているので、係止用下向き突起の下部の雌ねじ孔に幅寸法の大きい頭部を有するボルトを取り付けるだけで、容易に外向きフランジを形成することができると共に構造が簡単である等の効果がある。 According to the first and second inventions, when an uplift force acts on the structure during an earthquake or the like and the lower structure and the structure move relatively in the vertical direction, the upward protrusion for locking or the locking It is possible to engage an outward flange by a member provided by screw joint on the downward projection with the inward flange. Therefore, the upward lifting force acting on the upper structure is transferred via a structural displacement limiting stopper device corresponding to the upward lifting force. Can be reliably transmitted to the substructure.
In addition, the structure or the lower structure moves relatively horizontally during an earthquake or the like, and the inward flange is securely engaged to the lower side of the outward flange, so that the structure falls off the lower structure. Can be surely prevented.
According to the third aspect of the present invention, the male screw shaft portion is provided on the upper portion of the locking upward projection, and the male screw shaft portion has a ring-shaped female screw member whose width is larger than the width of the locking upward projection in the direction perpendicular to the bridge axis. Is fixed by screwing, and the outward flange is formed by the ring-shaped female screw member. Therefore, it is easy to attach the ring-shaped female screw member to the male screw shaft portion on the upper part of the locking upward projection. Can be formed and the structure is simple.
According to the fourth invention, a female screw hole is provided in the upper part of the locking upward projection, and a bolt having a head having a larger width than the width of the locking upward projection in the direction perpendicular to the bridge axis is formed in the female screw hole. Since the outward flange is formed by the bolt head, which is fixed by screwing, the bolt can be easily outward by simply attaching a bolt having a large head to the female screw hole at the top of the upward protrusion for locking. There is an effect that a flange can be formed and the structure is simple.
According to the fifth aspect of the present invention, the male screw shaft portion is provided at the lower portion of the locking downward projection, and the male screw shaft portion has a ring-shaped female screw member whose width is larger than the width of the locking downward projection in the direction perpendicular to the bridge axis. Is fixed by screwing, and the outward flange is formed by the ring-shaped female screw member. Therefore, it is easy to attach the ring-shaped female screw member to the male threaded shaft portion at the bottom of the downward projection for locking. Can be formed and the structure is simple.
According to the sixth aspect of the present invention, the female screw hole is provided in the lower portion of the locking downward projection, and the bolt having a head having a larger width than the width of the locking downward projection in the direction perpendicular to the bridge axis is provided in the female screw hole. Since the outward flange is formed by the bolt head, which is fixed by screwing, the bolt can be easily outward by simply attaching a bolt having a large head to the female screw hole at the bottom of the downward projection for locking. There is an effect that a flange can be formed and the structure is simple.

次に、本発明を図示の実施形態に基づいて詳細に説明する。 Next, the present invention will be described in detail based on the illustrated embodiment.

＜第１実施形態＞
図１ないし図５は、本発明の第１実施形態の上揚力対応型の構造物変位制限用ストッパ装置５（以下、単にストッパ装置５とも言う）を示すものであって、このストッパ装置５は、下部構造物６に固定される下部ストッパ部材としての鋼製第１ストッパ部材１と上部構造物７に固定される鋼製上部ストッパ部材としての第２ストッパ部材３とにより構成されている。 <First Embodiment>
FIG. 1 to FIG. 5 show a structure for restricting the displacement of a structure for restricting upper lift of a first embodiment of the present invention (hereinafter also simply referred to as a stopper device 5). The steel first stopper member 1 as a lower stopper member fixed to the lower structure 6 and the second stopper member 3 as a steel upper stopper member fixed to the upper structure 7 are configured.

図示の形態では、鋼製の第１ストッパ部材１の下部は、アンカーボルト９およびこれに装着されるナットおよびロックナット１３により下部構造物６に固定された増設支持部８（詳細は後記する）に取り付けられ、かつその第１ストッパ部材１の上部の中央には断面円形の係止用上向き突起２が一体に設けられている。 In the illustrated form, the lower portion of the first stopper member 1 made of steel is provided with an additional support portion 8 fixed to the lower structure 6 by an anchor bolt 9 and a nut and a lock nut 13 attached thereto (details will be described later). And a locking upward protrusion 2 having a circular cross section is integrally provided at the center of the upper portion of the first stopper member 1.

前記の係止用上向き突起２の先端部（上端部）には、前記突起よりもわずかに小径の雄ねじ軸部２ａが設けられ、その雄ねじ軸部２ａに、リング状ナットからなる雌ねじ部材２ｂがねじ込み固定されて、上向き突起２から横方向に張り出す外向きフランジ２８が形成されており、その外向きフランジ２８の外周側下部（外周縁下部）は、面取り加工が施されたガイド部が全周に渡って設けられている。 A male screw shaft 2a having a diameter slightly smaller than that of the protrusion is provided at the tip (upper end) of the locking upward protrusion 2 and a female screw member 2b made of a ring-shaped nut is provided on the male screw shaft 2a. An outward flange 28 that is fixed by screwing and protrudes laterally from the upward projection 2 is formed, and the outer peripheral side lower portion (outer peripheral lower portion) of the outward flange 28 is entirely a chamfered guide portion. It is provided over the circumference.

また、前記第１ストッパ部材１の上面には、前記の上向き突起２の周囲において複数（例えば４つ）のゴム製位置決め片２９が、突起周囲方向に間隔をおいて設けられ、中空円筒状等のゴム製位置決め片２９の下部は、第１ストッパ部材１に固定されている。 Further, a plurality of (for example, four) rubber positioning pieces 29 are provided on the upper surface of the first stopper member 1 around the upward projection 2 at intervals in the peripheral direction of the projection, such as a hollow cylindrical shape. The lower part of the rubber positioning piece 29 is fixed to the first stopper member 1.

上部が開放され橋軸方向に延長する上向き開口凹部３０を有する鋼製第２ストッパ部材３の周側壁の上面側に、縦向きの雌ねじ孔２１が設けられ、鋼製第２ストッパ部材３の上面に適宜調整板３１が介在されて、桁等の上部構造物７の下面に当接され、上部構造物７の下フランジ２２の上側に配置された複数のボルト２３が前記雌ねじ孔２１にねじ込まれて、第２ストッパ部材３は、上部構造物７に取り付けられている。
さらに第２ストッパ部材３の下面の中央には、第２ストッパ部材３と一体に、少なくとも橋軸直角方向に間隔をおいて対向するように設けられた内向きフランジ２７、または図示のように矩形環状に形成された内向きフランジ２７の内周面により形成され、第２ストッパ部材３の下部が開放され、橋軸方向に延長する円形または長円形等の横方向の係止用下向き開口凹部４が前記上向き開口凹部３０に貫通して接続するように設けられて、貫通した段付き孔が形成されている。前記の上向き開口凹部３０よりも係止用下向き開口凹部４の少なくとも橋軸直角方向の内壁面間の寸法は小さくされて、内向きフランジ２７が形成され、上向き開口凹部３０の内周壁面と係止用下向き開口凹部４の内周壁面とを接続する水平な係止面が形成されている。 A vertical female screw hole 21 is provided on the upper surface side of the peripheral side wall of the steel second stopper member 3 having an upward opening recess 30 that is open at the top and extends in the direction of the bridge axis, and the upper surface of the steel second stopper member 3. A plurality of bolts 23 arranged on the upper side of the lower flange 22 of the upper structure 7 are screwed into the female screw holes 21 with an adjustment plate 31 appropriately interposed therebetween. The second stopper member 3 is attached to the upper structure 7.
Furthermore, in the center of the lower surface of the second stopper member 3, an inward flange 27 provided so as to be opposed to the second stopper member 3 at an interval at least in the direction perpendicular to the bridge axis, or a rectangular shape as shown in the figure. Formed by the inner peripheral surface of the inward flange 27 formed in an annular shape, the lower portion of the second stopper member 3 is opened, and the downward opening recessed portion 4 for lateral locking such as a circle or an oval extending in the bridge axis direction. Are provided so as to penetrate through and connect to the upward opening recess 30 to form a stepped hole therethrough. The dimension between at least the inner wall surfaces of the locking downward opening recess 4 in the direction perpendicular to the bridge axis is made smaller than the upward opening recess 30 to form an inward flange 27, and the inner peripheral wall surface of the upward opening recess 30 is engaged with the inner opening wall surface. A horizontal locking surface that connects the inner peripheral wall surface of the downward opening recess 4 for stopping is formed.

第１ストッパ部材１におけるベース部上面からの上向き突起２の高さ寸法は、内向きフランジ２７の高さ寸法よりも高くされ、第１ストッパ部材１におけるベース部下面から雄ねじ軸部２ａの上端部までの高さ寸法は、前記第２ストッパ部材の高さ寸法とほぼ同じ寸法とされている。前記の外向きフランジ２８の上端部から上部構造物７または調整板３１との間には、間隙が設けられ、また、外向きフランジ２８下面と内向きフランジ２７上面との間には、間隙が設けられて、地震時以外の常時においては、干渉しないように構成されている。 The height dimension of the upward protrusion 2 from the upper surface of the base portion in the first stopper member 1 is made higher than the height dimension of the inward flange 27, and the upper end portion of the male screw shaft portion 2 a from the lower surface of the base portion in the first stopper member 1. The height dimension up to is substantially the same as the height dimension of the second stopper member. A gap is provided between the upper end of the outward flange 28 and the upper structure 7 or the adjustment plate 31, and a gap is provided between the lower surface of the outward flange 28 and the upper surface of the inward flange 27. It is provided so that it does not interfere at all times except during an earthquake.

前記のように、前記係止用下向き開口凹部４より上位の位置に、前記外向きフランジ２８は配置され、さらに、図４に示すように、橋軸直角方向に対向する内向きフランジ２７の内壁面間の幅寸法よりも、前記外向きフランジ２８の橋軸直角方向の幅寸法は大きくされて、地震時において、上部構造物７と下部構造物６が相対的に上下方向に所定以上離反するように移動した場合に、これに抵抗し上下方向の移動を拘束するようにされ、すなわち、所定以上の上揚力が作用した場合にこれに抵抗可能にされている。 As described above, the outward flange 28 is disposed at a position higher than the locking downward opening recess 4, and further, as shown in FIG. 4, the inner side of the inward flange 27 facing in the direction perpendicular to the bridge axis. The width dimension in the direction perpendicular to the bridge axis of the outward flange 28 is made larger than the width dimension between the wall surfaces, and the upper structure 7 and the lower structure 6 are relatively separated in the vertical direction by a predetermined distance or more in the event of an earthquake. In this case, it resists this and restrains the movement in the vertical direction, that is, it can resist this when a lifting force exceeding a predetermined level is applied.

前記の内向きフランジ２７は、上部の上向き開口凹部３０よりも、少なくとも橋軸直角方向の内側に張り出すように、鋼製第２ストッパ部材３の周側壁部の内側に、周側壁部と一体に内向きに張り出すように設けられ、その内向きフランジ２７は、図示の形態では、環状のフランジとされている。 The inward flange 27 is integrated with the peripheral side wall portion on the inner side of the peripheral side wall portion of the second stopper member 3 made of steel so as to protrude at least inward in the direction perpendicular to the bridge axis from the upper upward opening concave portion 30. In the illustrated embodiment, the inward flange 27 is an annular flange.

前記の内向きフランジ２７の上面レベルは、前記外向きフラン２８の下面レベルよりも若干低レベル位置に設けられて、上部構造物７の橋軸方向の横移動を許容する鋼製支承装置と共に使用する可動型とする場合には、図１および図２に示すように、橋梁等の上部構造物７の常時の伸縮時において、前記の内向きフランジ２７と外向きフラン２８が干渉しないようにされている。また、この実施形態では、地震時等に上部工となる上部構造物７あるいは下部工となる下部構造物６が相対的に横移動すると、内向きフランジ２７の内周側が、ベースプレートとしての第１ストッパ部材本体３２の上面と係止用上向き突起２と外向きフランジ２８とにより形成される環状横溝１６に入り込んで確実に係止されるので、上部構造物７の横移動が防止される。 The upper surface level of the inward flange 27 is provided at a position slightly lower than the lower surface level of the outward flange 28, and is used with a steel bearing device that allows lateral movement of the upper structure 7 in the bridge axis direction. 1 and 2, when the upper structure 7 such as a bridge is normally expanded and contracted, the inward flange 27 and the outward flange 28 are prevented from interfering with each other. ing. Further, in this embodiment, when the upper structure 7 serving as the upper work or the lower structure 6 serving as the lower work moves relatively in the event of an earthquake or the like, the inner peripheral side of the inward flange 27 becomes the first base plate. Since it enters into the annular lateral groove 16 formed by the upper surface of the stopper member main body 32, the locking upward projection 2 and the outward flange 28 and is securely locked, the lateral movement of the upper structure 7 is prevented.

また、強大な水平地震力が作用する時は、係止用上向き突起２および外向きフランジ２８および内向きフランジ２７が多少傾斜変形しても、前記内向きフランジ２７の環状上面が、前記外向きフランジ２８の環状下面側に係合するようになるので、地震時等において強大な水平力が作用しても、上部構造物７側の第２ストッパ部材３が、下部構造物６側の第１ストッパ部材１の上に乗り上がるのを防止して、上部構造物７が下部構造物６から落下するのを防止することができる。 Further, when a strong horizontal seismic force is applied, even if the locking upward projection 2 and the outward flange 28 and the inward flange 27 are slightly inclined and deformed, the annular upper surface of the inward flange 27 is directed outward. Since the flange 28 is engaged with the annular lower surface side of the flange 28, the second stopper member 3 on the upper structure 7 side is moved to the first structure on the lower structure 6 side even if a strong horizontal force is applied during an earthquake or the like. It is possible to prevent the upper structure 7 from falling from the lower structure 6 by preventing it from riding on the stopper member 1.

前記実施形態の本発明上揚力対応型の構造物変位制限用ストッパ装置５を組み立てる場合には、第１ストッパ部材１における外向きフランジ２８を形成するためのリング状ナットからなる雌ねじ部材２ｂを取り外した状態で、第２ストッパ部材３における下向き開口凹部４に、第１ストッパ部材の係止用上向き突起２を挿入配置し、内向きフランジ２７より上位のレベルにおいて、前記上向き突起２における雄ねじ軸部２ａにねじ込み固定する。そのようにして、第１ストッパ部材１と第２ストッパ部材３を連結すると共に、第１ストッパ部材１と第２ストッパ部材３とを、これらの側面に設けた雌ねじ孔を利用し、これらに渡って仮固定用連結板（図示を省略した）により仮固定した後、設置場所に搬送配置する。第１ストッパ部材１と第２ストッパ部材３が、それぞれ、下部構造物６または上部構造物７に固定された状態では、前記の仮固定用連結板は取り外されて、図１または図２に示す状態になる。 When assembling the structure for limiting the displacement of the structure 5 according to the present invention corresponding to the lifting force of the present invention, the female screw member 2b made of a ring-shaped nut for forming the outward flange 28 in the first stopper member 1 is removed. In this state, the upward protrusion 2 for locking the first stopper member is inserted and disposed in the downward opening recess 4 of the second stopper member 3, and the male screw shaft portion of the upward protrusion 2 is at a level higher than the inward flange 27. Screw and fix to 2a. In this manner, the first stopper member 1 and the second stopper member 3 are connected, and the first stopper member 1 and the second stopper member 3 are connected to each other by utilizing the female screw holes provided on the side surfaces thereof. And temporarily fixed by a temporarily fixing connecting plate (not shown), and then transported to the installation location. In the state where the first stopper member 1 and the second stopper member 3 are fixed to the lower structure 6 or the upper structure 7, respectively, the temporary fixing connecting plate is removed and shown in FIG. 1 or FIG. It becomes a state.

図示の形態では、下部構造物６における橋軸方向の上部側面に増設支持部８を設けて、その増設支持部８上に上揚力対応型の構造物変位制限用ストッパ装置５を設置するようにし、地震動時において所定以上の上揚力が作用し、上下の構造物が相対的に上下方向に離反しようとした場合に、下部構造物６と上部構造物７との、上下方向に係合連結を図るようにしている。
そのため、外向きフランジ２８と内向きフランジ２７との間には、上下方向に多少の間隙が設けられている。また、外向きフランジ２８と上部構造物側（上部構造物７下面または調整用プレート３１が配置される場合には、その調整用プレートの下面）７下面との間には、間隙が設けられ、常時において、上下方向の係合連結がされないようにされている。 In the form shown in the figure, an additional support portion 8 is provided on the upper side surface of the lower structure 6 in the bridge axis direction, and an upper lift-capable structure displacement limiting stopper device 5 is installed on the additional support portion 8. When the upper lifting force exceeds a predetermined level during the earthquake motion and the upper and lower structures are relatively separated from each other in the vertical direction, the lower structure 6 and the upper structure 7 are engaged and connected in the vertical direction. I try to figure it out.
Therefore, a slight gap is provided between the outward flange 28 and the inward flange 27 in the vertical direction. Further, a gap is provided between the outward flange 28 and the upper structure side (the lower surface of the upper structure 7 or the lower surface of the adjustment plate 31 when the adjustment plate 31 is disposed) 7 the lower surface, At all times, the engagement connection in the vertical direction is not performed.

次に、前記の増設支持部８の形態について説明する。 Next, the form of the extension support portion 8 will be described.

図示の形態では、橋脚または橋台等の鉄筋コンクリート製の既設下部構造物６の上部に、上下方向に間隔をおくと共に、橋軸直角方向に間隔をおいて複数の横方向のアンカー孔が設けられ、そのアンカー孔にアンカーボルト９の基部側が挿入配置されて、前記アンカー孔に充填される硬化性充填材により、前記アンカーボルト９は下部構造物６に固定され、前記のアンカーボルト９を介して、増設支持部８としての鋼製ブラケット８ａが下部構造物６に固定されている。 In the form shown in the drawing, a plurality of lateral anchor holes are provided on the upper part of the existing lower structure 6 made of reinforced concrete such as a pier or an abutment, with a space in the vertical direction and a space in the direction perpendicular to the bridge axis, The anchor bolt 9 is inserted and arranged in the anchor hole, and the anchor bolt 9 is fixed to the lower structure 6 by the curable filler filled in the anchor hole. A steel bracket 8 a as the extension support portion 8 is fixed to the lower structure 6.

前記の鋼製ブラケット８ａの構成についてさらに説明すると、取り付け用の縦鋼板１０の上端部に、水平に鋼製支持板１１が溶接により固定され、また、前記鋼製支持板１１の下端部に、水平な下部横板１２が溶接により固定され、その縦鋼板１０と鋼製支持板１１と下部横板１２とに直角になるように、複数の補強用縦鋼板１４が橋軸直角方向に間隔をおいて平行に配置されて、前記縦鋼板１０は、鋼製支持板１１および下部横板１２並びに縦鋼板１０に溶接により固定されている。 The structure of the steel bracket 8a will be further described. The steel support plate 11 is horizontally fixed to the upper end portion of the vertical steel plate 10 for attachment by welding, and the lower end portion of the steel support plate 11 is The horizontal lower horizontal plates 12 are fixed by welding, and a plurality of reinforcing vertical steel plates 14 are spaced in the direction perpendicular to the bridge axis so that they are perpendicular to the vertical steel plate 10, the steel support plate 11 and the lower horizontal plate 12. The vertical steel plates 10 are fixed to the steel support plate 11, the lower horizontal plate 12 and the vertical steel plate 10 by welding.

前記のような鋼製ブラケット８ａが増設支持部８として、既設の下部構造物６の上部側面に前記アンカーボルト９に装着されるナットおよびロックナット１３により固定されている。 The steel bracket 8a as described above is fixed to the upper side surface of the existing lower structure 6 as an extension support portion 8 by a nut and a lock nut 13 attached to the anchor bolt 9.

前記の鋼製支持板１１には、橋軸方向（左右方向）および橋軸直角方向に間隔をおいて複数のボルト挿通孔１５が設けられ、前記のボルト挿通孔１５は、第１ストッパ部材１の本体３２下面側に開口するように設けられる複数（図示の場合は等角度間隔をおいて４つ）の雌ねじ孔１６に対応した位置において、雌ねじ孔１６よりも若干大きい内径のボルト挿通孔とされている。 The steel support plate 11 is provided with a plurality of bolt insertion holes 15 at intervals in the bridge axis direction (left-right direction) and in the direction perpendicular to the bridge axis, and the bolt insertion holes 15 correspond to the first stopper member 1. A bolt insertion hole having an inner diameter slightly larger than that of the female screw hole 16 at a position corresponding to a plurality of (four in the illustrated case at equal angular intervals) female screw holes 16 provided so as to open to the lower surface side of the main body 32. Has been.

前記の鋼製支持板１１に第１ストッパ部材１が載置されて、鋼製支持板１１の下側からボルト１７により、第１ストッパ部材１は前記鋼製支持板１１に固定されている。第１ストッパ部材１の上面の中央には、断面円形の係止用上向き突起２が一体に設けられ、前記の第１ストッパ部材１における雌ねじ孔１６は、例えば、等角度間隔をおいて設けられている。 The first stopper member 1 is placed on the steel support plate 11, and the first stopper member 1 is fixed to the steel support plate 11 with bolts 17 from below the steel support plate 11. In the center of the upper surface of the first stopper member 1, a locking upward protrusion 2 having a circular cross section is integrally provided, and the female screw holes 16 in the first stopper member 1 are provided at equal angular intervals, for example. ing.

前記の上向き突起２には、ゴムのような弾性材料製等の緩衝用筒状体１８が嵌合固定されて配置され、横方向に張り出す前記外向きフランジ２８の外径寸法は、前記緩衝用筒状体１８の外径寸法よりも大きくされ、前記外向きフランジ２８の外径寸法と前記緩衝用筒状体１８の外径寸法との寸法差は、前記内向きフランジ２７における内周壁面と前記上向き開口凹部３０における内周壁面との間の横方向の距離よりも小さくされて、前記の緩衝用筒状体１８により、地震時において、橋軸方向または橋軸直角方向の横方向の移動により係止用上向き突起２に第２ストッパ部材３が衝突するように係合した場合に、衝撃力を緩衝支承するように構成されている。前記の緩衝用筒状体１８としては、軟質弾性材料性の筒状体１８に一体に硬質弾性材料を埋め込み配置した形態の初期の衝撃力緩衝性能の高いものを装着するのが好ましい。 A cushioning cylinder 18 made of an elastic material such as rubber is fitted and fixed to the upward projection 2, and the outer diameter of the outward flange 28 projecting laterally is the cushioning The outer diameter of the outer cylinder 28 is larger than the outer diameter of the outer flange 28 and the outer diameter of the buffer cylinder 18 is the inner peripheral wall surface of the inner flange 27. And a lateral distance between the inner circumferential wall surface of the upward-opening recess 30 and the shock-absorbing tubular body 18 in the lateral direction of the bridge axis direction or the direction perpendicular to the bridge axis in the event of an earthquake. When the second stopper member 3 is engaged with the locking upward projection 2 by the movement so as to collide, the shock force is buffered and supported. It is preferable to mount the shock-absorbing cylindrical body 18 having a high initial impact force buffering performance in which a hard elastic material is integrally embedded in the cylindrical body 18 made of soft elastic material.

なお、前記第２ストッパ部材３は前記第１ストッパ部材１に固定されたゴム製位置決め片２９の上部に載置され、かつ第１ストッパ部材１の上面と第２ストッパ部材３の下面との間に間隙Ｇが設けられている。 The second stopper member 3 is placed on an upper part of a rubber positioning piece 29 fixed to the first stopper member 1, and between the upper surface of the first stopper member 1 and the lower surface of the second stopper member 3. Is provided with a gap G.

前記のような上揚力対応型の構造物変位制限用ストッパ装置を据付ける場合は、そのストッパ装置５における下向き開口凹部４を有する第２ストッパ部材３を上部構造物７の長手方向に延長するように配置した状態で、ボルト２３により固定し、また、第１ストッパ部材１の下部を橋脚または橋台等の増設支持部８にボルト１７により固定する。 In the case of installing the above-described structure for restricting the structure of displacement of the upper lifting force, the second stopper member 3 having the downward opening recess 4 in the stopper device 5 is extended in the longitudinal direction of the upper structure 7. The first stopper member 1 is fixed to the additional support portion 8 such as a bridge pier or an abutment with a bolt 17.

なお、図示の形態では、上揚力対応型の構造物変位制限用ストッパ装置５における下向き開口凹部４の両端部と上向き突起２との間に、構造物伸縮許容間隙（L）が設けられているので、上部構造物７は自由に伸縮することができる。 In the illustrated embodiment, a structure expansion / contraction allowance gap (L) is provided between the both ends of the downward opening recess 4 and the upward protrusion 2 in the structure for limiting the displacement of the structure 5 corresponding to the upward lifting force. Therefore, the upper structure 7 can freely expand and contract.

本発明においては、水平地震力により上部構造物７が水平移動しようとした場合は、係止用上向き突起２における外向きフランジ２８の下側に、内向きフランジ２７の一部が入り込むようになるので、確実に内向きフランジ２７を外向きフランジ２８に係合して係止するようになる。 In the present invention, when the upper structure 7 tries to move horizontally due to the horizontal seismic force, a part of the inward flange 27 enters the lower side of the outward flange 28 in the upward protrusion 2 for locking. Therefore, the inward flange 27 is surely engaged and locked with the outward flange 28.

＜第２実施形態＞
次に、図６および図７を参照して、本発明の第２実施形態の上揚力対応型の構造物変位制限用ストッパ装置５について説明する。 Second Embodiment
Next, with reference to FIG. 6 and FIG. 7, a structure for restricting a structure displacement limiting stopper device 5 of the second embodiment of the present invention will be described.

この形態では、本発明の上揚力対応型の構造物変位制限用ストッパ装置５を上下反転配置して、増設支持部８と上部構造物７との間に設置した形態である。第１ストッパ部材１を上部構造物７にボルト２３により固定し、第２ストッパ部材３を下部構造物６における増設支持部８に固定した形態である。 In this embodiment, the structure for restricting structural displacement of the upper lifting force corresponding to the present invention is arranged upside down and installed between the additional support portion 8 and the upper structure 7. In this embodiment, the first stopper member 1 is fixed to the upper structure 7 with bolts 23, and the second stopper member 3 is fixed to the additional support portion 8 in the lower structure 6.

したがって、前記第１実施形態における上向き突起２は、第２実施形態では、下向き突起２に、上向き開口凹部３０は、下向き開口凹部３０に、係止用下向き開口凹部４は、係止用上向き開口凹部４に用語を変化させているが、実質的に同じものである。 Therefore, the upward projection 2 in the first embodiment is the downward projection 2 in the second embodiment, the upward opening recess 30 is the downward opening recess 30, and the locking downward opening recess 4 is the locking upward opening. Although the term is changed to the concave portion 4, it is substantially the same.

さらに具体的に説明すると、この第２実施形態では、上揚力対応型の構造物変位制限用ストッパ装置５は、上部に鋼製または弾性支承装置１９を備えた下部構造物６における上部側面に、横方向に張り出す増設支持部８が前記下部構造物６に設けられ、その増設支持部８とその上方の上部構造物７との間に設けられる構造物変位制限用ストッパ装置であり、上部構造物７に固定される第１ストッパ部材１の下面に係止用下向き突起２が設けられ、下部構造物６に固定される第２ストッパ部材３の上面に係止用上向き開口凹部４が設けられ、前記下向き突起２が上向き開口凹部４内に配置され、第１ストッパ部材１における係止用下向き突起２の下部にねじ接合により部材が接合されて横方向に張り出す外向きフランジ２８が設けられ、係止用上向き開口凹部４を備えている第２ストッパ部材３の上端部には、前記外向きフランジ２８よりも上位のレベルにおいて前記係止用上向き開口凹部４の内側に張り出す内向きフランジ２７が設けられ、かつ橋軸直角方向に対向する各内向きフランジ２７間の幅寸法よりも、外向きフランジ２８の橋軸直角方向の幅寸法は大きくされて、上揚力作用時に前記外向きフランジ２８と内向きフランジ２７が係合することで上揚力に抵抗可能にされている。
また、前記第１実施形態と同様に、前記の係止用下向き突起２の下部に雄ねじ軸部２ａが設けられ、その雄ねじ軸部２ａに、係止用下向き突起２の橋軸直角方向の幅寸法よりも幅寸法の大きいリング状雌ねじ部材２ｂがねじ込み固定され、そのリング状の雌ねじ部材２ｂにより、外向きフランジ２８が形成されている。
また、前記第１実施形態と同様に、前記の係止用下向き突起２には地震時の下部構造物の変位に伴って当該係止用上向き突起と共に橋軸方向または橋軸直角方向に移動するゴムのような弾性材料製等の緩衝用筒状体１８が嵌合固定されて配置され、横方向に張り出す前記外向きフランジ２８の外径寸法は、前記緩衝用筒状体１８の外径寸法よりも大きくされ、前記外向きフランジ２８の外径寸法と前記緩衝用筒状体１８の外径寸法との寸法差は、前記内向きフランジ２７における内周壁面と前記上向き開口凹部３０における内周壁面との間の横方向の距離よりも小さくされて、前記の緩衝用筒状体１８により、地震時において、横方向の移動により係止用下向き突起２に第２ストッパ部材３が衝突するように係合した場合に、衝撃力を緩衝支承するように構成されている。 More specifically, in this second embodiment, the structure for restricting the upper displacement of the structural displacement limiting stopper device 5 is formed on the upper side surface of the lower structure 6 having a steel or elastic bearing device 19 on the upper portion. An extension support portion 8 extending in the lateral direction is provided on the lower structure 6 and is a structure displacement limiting stopper device provided between the extension support portion 8 and the upper structure 7 thereabove. A locking downward projection 2 is provided on the lower surface of the first stopper member 1 fixed to the object 7, and an locking upward opening recess 4 is provided on the upper surface of the second stopper member 3 fixed to the lower structure 6. The downward projection 2 is disposed in the upward opening recess 4, and an outward flange 28 is provided below the locking downward projection 2 of the first stopper member 1, and a member is joined by screw joint to project laterally. For locking An inward flange 27 is provided at the upper end of the second stopper member 3 having the facing opening recess 4 so as to project inside the locking upward opening recess 4 at a level higher than the outward flange 28. In addition, the width dimension in the direction perpendicular to the bridge axis of the outward flange 28 is made larger than the width dimension between the inward flanges 27 facing each other in the direction perpendicular to the bridge axis. By engaging the flange 27, it is possible to resist the uplift force.
Similarly to the first embodiment, a male screw shaft portion 2a is provided below the locking downward projection 2 and the male screw shaft portion 2a has a width in the direction perpendicular to the bridge axis of the locking downward projection 2. A ring-shaped female screw member 2b having a width larger than the size is fixed by screwing, and an outward flange 28 is formed by the ring-shaped female screw member 2b.
Similarly to the first embodiment, the locking downward projection 2 moves in the direction of the bridge axis or the direction perpendicular to the bridge axis together with the locking upward projection in accordance with the displacement of the lower structure during the earthquake. The shock-absorbing cylindrical body 18 made of an elastic material such as rubber is fitted and fixed, and the outer diameter of the outward flange 28 protruding laterally is the outer diameter of the shock-absorbing cylindrical body 18. The dimension difference between the outer diameter of the outward flange 28 and the outer diameter of the buffer cylinder 18 is larger than the inner diameter of the inner peripheral wall surface of the inward flange 27 and the inner portion of the upward opening recess 30. The second stopper member 3 collides with the downward projection 2 for locking by the movement in the lateral direction due to the shock-absorbing cylindrical body 18 by being made smaller than the lateral distance between the peripheral wall surface and the buffer cylinder 18. Shock force is applied to the shock absorber. It is configured to.

下部構造物６には、比較的広い支持部を備えた増設支持部８を設けるのは容易であるが、上部構造物７側は容易ではなく、補修が大掛かりとなるため、これを避ける場合に、前記のように、上下を反転配置して、第２ストッパ部材３を下部構造物６側の増設支持部８に配置するようにすればよい。 In the lower structure 6, it is easy to provide the additional support portion 8 having a relatively wide support portion, but the upper structure 7 side is not easy, and the repair becomes large. As described above, the second stopper member 3 may be disposed on the additional support portion 8 on the lower structure 6 side by turning upside down.

その他の構成は、前記実施形態と同様であるので、同様な要素には同様な符号を付して説明を省略する。 Since other configurations are the same as those of the above-described embodiment, the same elements are denoted by the same reference numerals and the description thereof is omitted.

前記各実施形態では、突起２の先端部に雄ねじ軸部２ａを設ける形態で、その雄ねじ軸部２ａに雌ねじ部材２ｂからなる外向きフランジ２８を設ける形態であるが、これに変えて、図８に示すように、前記突起２に雌ねじ孔２ｃを設けて、その雌ねじ孔２ｃに頭部が拡径している外向きフランジ２８とされ、そのような外向きフランジ２８を有する頭部を備えたボルト３３の雄ねじ軸部をねじ込み固定するようにしてもよい。なお、前記ボルト３３には、六角凹溝等の回動工具係合部を適宜形成するようにしておく。ボルト３３の頭部を六角あるいは矩形とすることにより回動工具係合部としてもよい。 In each of the above-described embodiments, the male screw shaft portion 2a is provided at the tip of the protrusion 2, and the outward flange 28 formed of the female screw member 2b is provided on the male screw shaft portion 2a. As shown in FIG. 2, the protrusion 2 is provided with a female screw hole 2c, and the female screw hole 2c is an outward flange 28 whose head is enlarged in diameter, and the head having such an outward flange 28 is provided. The male screw shaft portion of the bolt 33 may be fixed by screwing. The bolt 33 is appropriately formed with a rotating tool engaging portion such as a hexagonal groove. It is good also as a turning tool engaging part by making the head of the volt | bolt 33 hexagonal or rectangular.

前記各実施形態では、上部構造物７および下部構造物６が、鋼製の構造物の形態であり、第１ストッパ部材１と第２ストッパ部材３とに雌ねじ孔を設けて、ボルトにより各上部および下部構造物６，７に固定するようにしているが、コンクリート製上部構造物あるいは下部構造物である場合には、第１ストッパ部材１と第２ストッパ部材３とにアンカーボルトを設けて、アンカーボルトを、それぞれ各構造物のコンクリートに埋め込み固定するようにしてもよい。第２ストッパ部材３における構造物側固定側の開口部には、適宜蓋材を設ける。 In each of the above-described embodiments, the upper structure 7 and the lower structure 6 are in the form of a steel structure, the first stopper member 1 and the second stopper member 3 are provided with female screw holes, and each upper portion is formed by a bolt. And when it is fixed to the lower structures 6 and 7, when it is a concrete upper structure or a lower structure, an anchor bolt is provided on the first stopper member 1 and the second stopper member 3, You may make it fix an anchor bolt to the concrete of each structure, respectively. A lid member is appropriately provided at the opening on the structure side fixed side of the second stopper member 3.

前記実施形態のように、前記下向き開口凹部４における構造物長手方向の両端部と上向き突起２との間には構造物伸縮許容間隙Ｌを設けるのが一般的であるが、上部構造物７が平面円弧状の曲線状である場合には、橋軸方向および橋軸直角方向の２方向の間隙が必要になる。 As in the above-described embodiment, it is common to provide a structure expansion / contraction allowance gap L between both ends of the downward opening concave portion 4 in the longitudinal direction of the structure and the upward projection 2. In the case of a planar arcuate curved shape, a gap in two directions, ie, the bridge axis direction and the bridge axis perpendicular direction is required.

なお、前記のゴム製位置決め片２９は、第１ストッパ部材１と第２ストッパ部材３との上下方向の位置決めを行い、これらの間に所定の上下方向の間隙Ｇを設けるためだけに必要なものであり、前記のゴム製位置決め片２９は上部構造物７が設置され、また、前記上部構造物７の鉛直荷重を負担しない第２ストッパ部材３が設置された後では、なくてもよいものである。
第１ストッパ部材１に対する第２ストッパ部材３の横移動量が比較的小さい場合は、ゴム製位置決め片２９の上部が弾性変形し、また第１ストッパ部材１に対する第２ストッパ部材３の横移動量が一定以上になると、ゴム製位置決め片２９は第２ストッパ部材３の下面（または上面）をスライドする。 The rubber positioning piece 29 is necessary only for positioning the first stopper member 1 and the second stopper member 3 in the vertical direction and providing a predetermined vertical gap G therebetween. The rubber positioning piece 29 may be omitted after the upper structure 7 is installed and the second stopper member 3 that does not bear the vertical load of the upper structure 7 is installed. is there.
When the amount of lateral movement of the second stopper member 3 relative to the first stopper member 1 is relatively small, the upper portion of the rubber positioning piece 29 is elastically deformed, and the amount of lateral movement of the second stopper member 3 relative to the first stopper member 1 When the value exceeds a certain value, the rubber positioning piece 29 slides on the lower surface (or upper surface) of the second stopper member 3.

前記のゴム製位置決め片２９は、第１ストッパ部材１または第２ストッパ部材３のいずれか一方に固定すればよく、例えば、前記実施形態と逆に、予めゴム製位置決め片２９の上部を第２ストッパ部材３に固定してもよい。 The rubber positioning piece 29 may be fixed to either the first stopper member 1 or the second stopper member 3. For example, contrary to the above-described embodiment, the upper portion of the rubber positioning piece 29 is previously set to the second position. The stopper member 3 may be fixed.

また、ゴム製位置決め片２９の数は３個または５個以上であってもよい。また、前記のゴム製位置決め片２９を上下に分離可能にし、上下の位置決め片の境界面でスライド可能な形態でもよい。ゴム製位置決め片２９の固定手段としては、例えば、ビスまたは接着剤により固着するようにしてもよい。 Further, the number of rubber positioning pieces 29 may be three or five or more. Further, the rubber positioning piece 29 may be separable up and down and slidable on the boundary surface between the upper and lower positioning pieces. As a fixing means of the rubber positioning piece 29, for example, it may be fixed by a screw or an adhesive.

前記実施形態のようにすると、下部構造物６に第１ストッパ部材１を固定した状態で、第２ストッパ部材３の上部を埋込むように構造物用コンクリートを打設する場合、第１ストッパ部材１の上向き突起２および第２ストッパ部材３の下向き開口凹部４の周囲において第１ストッパ部材１および第２ストッパ部材３の間に設けられた３個以上のゴム製位置決め片２９により、第１ストッパ部材１の上面と第２ストッパ部材３の下面との間に所要の間隙Gを確保しておくことができる。 According to the embodiment, when the concrete for structure is placed so as to bury the upper portion of the second stopper member 3 in a state where the first stopper member 1 is fixed to the lower structure 6, the first stopper member The first stopper 2 is formed by three or more rubber positioning pieces 29 provided between the first stopper member 1 and the second stopper member 3 around the one upward projection 2 and the downward opening recess 4 of the second stopper member 3. A required gap G can be secured between the upper surface of the member 1 and the lower surface of the second stopper member 3.

しかも、前記位置決め片２９の上下方向の一端部は第１ストッパ部材１および第２ストッパ部材３のうちの一方に固定され、その位置決め片２９の上下方向の他端部は第１ストッパ部材１および第２ストッパ部材３のうちの他方に摩擦接触されて固定されるので、第１ストッパ部材１と第２ストッパ部材３との横方向の相対的な位置決めを行なって、上向き突起２と下向き開口凹部４との間に所定の構造物伸縮許容間隙Ｌを確保しておくことができ、さらに構造物用コンクリートを打設するときの振動や衝撃等により、第２ストッパ部材３が第１ストッパ部材１に対し相対的に横方向に偏位するのを防止することができ、また位置決め片２９はゴム製であるので、上部構造物７の伸縮に対する抵抗が小さく、そのため構造物７を自由に伸縮させることができる。 Moreover, one end of the positioning piece 29 in the vertical direction is fixed to one of the first stopper member 1 and the second stopper member 3, and the other end of the positioning piece 29 in the vertical direction is the first stopper member 1 and Since the other one of the second stopper members 3 is frictionally contacted and fixed, the first stopper member 1 and the second stopper member 3 are positioned relative to each other in the lateral direction so that the upward projection 2 and the downward opening recess A predetermined structure expansion / contraction allowance gap L can be ensured between the first stopper member 1 and the second stopper member 3 due to vibration or impact when placing concrete for structure. Since the positioning piece 29 is made of rubber, resistance to expansion and contraction of the upper structure 7 is small, so that the structure 7 can be freely expanded and contracted. Rukoto can.

本発明を実施する場合、外向きフランジ２８と内向きフランジ２７としては、長方形あるいは矩形状等の張り出し突出量の少ないフランジとしてもよい。また、外向きフランジ２８と内向きフランジ２７に設けるガイド部としては、断面で直線状の傾斜面としてもよく、あるいは傾斜角度の異なる屈折した傾斜面としてもよい。また、第２ストッパ部材３を構成する場合、内向きフランジ２７を周側壁に溶接により固着するようにしてもよく、第１ストッパ部材１を構成する場合、第１ストッパ部材１に雌ねじ孔を設け、外向きフランジ２８付の係止用上向き突起２の下部の雄ねじ部をねじ込み、前記雌ねじ孔内で係止用上向き突起２の下部を溶接により第１ストッパ部材１に固定してもよい。また、外向きフランジ２８を係止用上向き突起２に溶接により固定してもよい。このような第２ストッパ部材３および第１ストッパ部材１の製作工程を適宜組み合わせて、ストッパ装置を製作すればよい。 When carrying out the present invention, the outward flange 28 and the inward flange 27 may be a flange having a small protruding amount such as a rectangle or a rectangular shape. Moreover, as a guide part provided in the outward flange 28 and the inward flange 27, it may be a straight inclined surface in cross section, or may be a refracted inclined surface having a different inclination angle. When the second stopper member 3 is configured, the inward flange 27 may be fixed to the peripheral side wall by welding. When the first stopper member 1 is configured, the first stopper member 1 is provided with a female screw hole. Alternatively, the male screw portion at the lower portion of the locking upward projection 2 with the outward flange 28 may be screwed, and the lower portion of the locking upward projection 2 may be fixed to the first stopper member 1 by welding in the female screw hole. Further, the outward flange 28 may be fixed to the locking upward projection 2 by welding. What is necessary is just to manufacture a stopper apparatus combining the manufacturing process of such a 2nd stopper member 3 and the 1st stopper member 1 suitably .

本発明の第１実施形態の上揚力対応型の構造物変位制限用ストッパ装置を据付けた状態を示す一部縦断側面図である。It is a partial longitudinal cross-sectional side view which shows the state which installed the stopper apparatus for structure displacement restriction | limiting of an uplift corresponding type | mold of 1st Embodiment of this invention. 図１に示す上揚力対応型の構造物変位制限用ストッパ装置の一部縦断正面図である。FIG. 2 is a partially longitudinal front view of the uplift-force-compatible structure displacement limiting stopper device shown in FIG. 1. 図１に示す上揚力対応型の構造物変位制限用ストッパ装置における第１ストッパ部材を示すものであって、（ａ）は平面図、（ｂ）は正面図である。The 1st stopper member in the stopper apparatus for structure displacement restriction | limiting of a lifting force corresponding | compatible type shown in FIG. 1 is shown, Comprising: (a) is a top view, (b) is a front view. 図１に示す上揚力対応型の構造物変位制限用ストッパ装置における第２ストッパ部材を示すものであって、（ａ）は平面図、（ｂ）は正面図、（ｃ）は側面図である。FIGS. 2A and 2B show a second stopper member in the structure for limiting the displacement of the structure shown in FIG. 1, wherein FIG. 1A is a plan view, FIG. 1B is a front view, and FIG. . 図１に示す上揚力対応型の構造物変位制限用ストッパ装置におけるリングナットからなる雌ねじ部材を示すものであって、（ａ）は平面図、（ｂ）は正面図である。The female screw member which consists of a ring nut in the stopper device for structure displacement restriction | limiting of an uplifting type | mold shown in FIG. 1 is shown, Comprising: (a) is a top view, (b) is a front view. 本発明の第２実施形態の上揚力対応型の構造物変位制限用ストッパ装置を据付けた状態を示す一部縦断側面図である。It is a partial longitudinal cross-sectional side view which shows the state which installed the stopper apparatus for structure displacement restriction | limiting of an uplift corresponding type | mold of 2nd Embodiment of this invention. 図６に示す上揚力対応型の構造物変位制限用ストッパ装置の一部縦断正面図である。FIG. 7 is a partially longitudinal front view of the uplift-force-compatible structure displacement limiting stopper device shown in FIG. 6. 本発明の変形形態を示す一部縦断側面図である。It is a partially vertical side view which shows the modification of this invention. 従来のストッパ装置の一例を示す一部縦断正面図である。It is a partially longitudinal front view showing an example of a conventional stopper device. 図９における第２ストッパ部材の中間部で切断した状態を示す横断平面図である。FIG. 10 is a cross-sectional plan view showing a state where the second stopper member in FIG. 従来の鋼製支承装置の形態を示すものであって、（ａ）はピンに支圧力を作用させる形態の鋼製支承装置を示す斜視図、（ｂ）はその縦断側面図、（ｃ）は縦断正面図、（ｄ）はピンにせん断力を作用させる形態の鋼製支承装置を示す斜視図、（ｅ）はその縦断側面図、（ｆ）は縦断正面図である。The form of the conventional steel bearing apparatus is shown, Comprising: (a) is a perspective view which shows the steel bearing apparatus of the form which applies a bearing pressure to a pin, (b) is the vertical side view, (c) is A longitudinal front view, (d) is a perspective view showing a steel bearing device in a form in which a shearing force is applied to a pin, (e) is a longitudinal side view thereof, and (f) is a longitudinal front view.

符号の説明Explanation of symbols

１第１ストッパ部材
２係止用上向き突起または係止用下向き突起
２ａ雄ねじ軸部
２ｂ雌ねじ部材
３第２ストッパ部材
４係止用下向き開口凹部または係止用上向き開口凹部
５上揚力対応型の構造物変位制限用ストッパ装置
６下部構造物
７上部構造物
８増設支持部
８ａ鋼製ブラケット
９アンカーボルト
１０取り付け用の縦鋼板
１１鋼製支持板
１２下部横板
１３ナットおよびロックナット
１４補強用縦鋼板
１５ボルト挿通孔
１６雌ねじ孔
１７ボルト
１８緩衝用筒状体
１９鋼製または弾性支承装置
１９ａ鋼製支承装置
１９ｂ鋼製支承装置
１９ｃ鋼製支承装置
２１雌ねじ孔
２２下フランジ
２３ボルト
２７内向きフランジ
２８外向きフランジ
２９ゴム製位置決め片
３０上向き開口凹部または下向き開口凹部
３１調整板
３２第１ストッパ部材本体
３３ボルト
３４下向き開口凹部
３５第１ストッパ部材
３６係止用上向き突起
３７構造物変位制限用ストッパ装置
３８第２ストッパ部材 DESCRIPTION OF SYMBOLS 1 1st stopper member 2 Locking upward protrusion or Locking downward protrusion 2a Male screw shaft part 2b Female screw member 3 Second stopper member 4 Locking downward opening recessed part or Locking upward opening recessed part 5 Structure corresponding to uplift force Material displacement limiting stopper device 6 Lower structure 7 Upper structure 8 Additional support portion 8a Steel bracket 9 Anchor bolt 10 Vertical steel plate 11 for mounting 11 Steel support plate 12 Lower horizontal plate 13 Nut and lock nut 14 Reinforcing vertical steel plate 15 Bolt insertion hole 16 Female screw hole 17 Bolt 18 Buffer cylindrical body 19 Steel or elastic bearing device 19a Steel bearing device 19b Steel bearing device 19c Steel bearing device 21 Female screw device 22 Female screw hole 22 Lower flange 23 Bolt 27 Inward flange 28 Outward flange 29 rubber positioning piece 30 upward opening recess or downward opening recess 31 adjustment plate 32 first stroke Upper member body 33 Bolt 34 Downward opening recess 35 First stopper member 36 Upward protrusion 37 for locking Structure displacement limiting stopper device 38 Second stopper member

Claims

上部に支承を備えた下部構造物とその上方の上部構造物との間に設けられる構造物変位制限用ストッパ装置であり、下部構造物に固定される第１ストッパ部材の上面に係止用上向き突起が設けられ、上部構造物に固定される第２ストッパ部材の下面に係止用下向き開口凹部が設けられ、前記係止用上向き突起が係止用下向き開口凹部内に配置され、第１ストッパ部材における係止用上向き突起の上部にねじ接合により部材が接合されて横方向に張り出す外向きフランジが設けられ、係止用下向き開口凹部を備えている第２ストッパ部材の下端部には、前記外向きフランジよりも下位のレベルにおいて前記係止用下向き開口凹部の内側に張り出す内向きフランジが設けられ、かつ橋軸直角方向に対向する内向きフランジ内壁面間の幅寸法よりも、外向きフランジの橋軸直角方向の幅寸法は大きくされて、上揚力作用時に前記外向きフランジと内向きフランジが係合することで上揚力に抵抗可能にされ、前記第１ストッパ部材は、下部構造物の上部側面に設けた増設支持部にボルトにより固定され、前記係止用上向き突起は地震時の下部構造物の変位に伴って当該係止用上向き突起と共に橋軸方向または橋軸直角方向に移動する弾性材料製の緩衝用筒状体が嵌合固定された係止用上向き突起であり、横方向に張り出す前記外向きフランジの外径寸法は、前記緩衝用筒状体の外径寸法よりも大きくされ、前記外向きフランジの外径寸法と前記緩衝用筒状体の外径寸法との寸法差は、前記内向きフランジにおける内周壁面と前記上向き開口凹部における内周壁面との間の横方向の距離よりも小さくされて、地震時において、前記係止用上向き突起に第２ストッパ部材が衝突するように係合する場合に、前記上向き突起に嵌合固定された緩衝用筒状体により衝撃力を緩衝支承するようにされていることを特徴とする上揚力対応型の構造物変位制限用ストッパ装置。 A stopper device for restricting displacement of a structure provided between a lower structure having a support on the upper part and an upper structure above the upper structure. The upper surface of the first stopper member fixed to the lower structure faces upward for locking. A locking downward opening recess is provided on the lower surface of the second stopper member fixed to the upper structure, and the locking upward protrusion is disposed in the locking downward opening recess. On the upper end of the upward protrusion for locking in the member, an outward flange is provided that is joined by screw bonding and projects laterally, and the lower end portion of the second stopper member having a downward opening recess for locking is An inward flange projecting inside the locking downward opening recess is provided at a lower level than the outward flange, and more than the width dimension between the inner wall surfaces of the inward flange facing in the direction perpendicular to the bridge axis. The width of the outward flange in the direction perpendicular to the bridge axis is increased, and the upward flange can be resisted by the engagement of the outward flange and the inward flange when the upward lift is applied. It is fixed to the additional support provided on the upper side surface of the structure with bolts , and the upward projection for locking together with the upward projection for locking along the displacement of the lower structure during an earthquake is in the direction of the bridge axis or perpendicular to the bridge axis. Is an upward projection for locking to which a shock-absorbing cylindrical body made of an elastic material that moves is fixed, and the outer diameter of the outward flange projecting laterally is the outer diameter of the shock-absorbing cylindrical body The dimension difference between the outer diameter of the outward flange and the outer diameter of the buffer tubular body is larger than the inner peripheral wall surface of the inward flange and the inner peripheral wall surface of the upward opening recess. Than the lateral distance between In the event of an earthquake, when the second stopper member is engaged so as to collide with the upward protrusion for locking, the impact force is buffered and supported by the buffer cylindrical body fitted and fixed to the upward protrusion. A structure for limiting the displacement of a structure, which is adapted for uplifting force.

上部に支承を備えた下部構造物とその上方の上部構造物との間に設けられる構造物変位制限用ストッパ装置であり、上部構造物に固定される第１ストッパ部材の下面に係止用下向き突起が設けられ、下部構造物に固定される第２ストッパ部材の上面に係止用上向き開口凹部が設けられ、前記係止用下向き突起が係止用上向き開口凹部内に配置され、第１ストッパ部材における係止用下向き突起の下部にねじ接合により部材が接合されて横方向に張り出す外向きフランジが設けられ、係止用上向き開口凹部を備えている第２ストッパ部材の上端部には、前記外向きフランジよりも上位のレベルにおいて前記係止用上向き開口凹部の内側に張り出す内向きフランジが設けられ、かつ橋軸直角方向に対向する内向きフランジ内壁面間の幅寸法よりも、外向きフランジの橋軸直角方向の幅寸法は大きくされて、上揚力作用時に前記外向きフランジと内向きフランジが係合することで上揚力に抵抗可能にされ、前記第２ストッパ部材は、下部構造物の上部側面に設けた増設支持部にボルトにより固定され、前記係止用下向き突起は地震時の下部構造物の変位に伴って当該係止用下向き突起と共に橋軸方向または橋軸直角方向に移動する弾性材料製の緩衝用筒状体が嵌合固定された係止用下向き突起であり、横方向に張り出す前記外向きフランジの橋軸方向の外径寸法は、前記緩衝用筒状体の外径寸法よりも大きくされ、前記外向きフランジの外径寸法と前記緩衝用筒状体の外径寸法との寸法差は、前記内向きフランジにおける内周壁面と前記上向き開口凹部における内周壁面との間の横方向の距離よりも小さくされて、地震時において、前記係止用下向き突起に第２ストッパ部材が衝突するように係合する場合に、前記下向き突起に嵌合固定された緩衝用筒状体により衝撃力を緩衝支承するようにされていることを特徴とする上揚力対応型の構造物変位制限用ストッパ装置。 A stopper device for restricting displacement of a structure provided between a lower structure having a support on the upper portion and an upper structure above the lower structure, and downwardly locking the first stopper member fixed to the upper structure. An upward opening recess for locking is provided on the upper surface of the second stopper member provided with a protrusion and fixed to the lower structure, and the downward protrusion for locking is disposed in the upward opening recess for locking , and the first stopper At the upper end of the second stopper member, which is provided with an outward flange that protrudes laterally by joining the member by screw joining to the lower part of the downward projection for locking in the member, An inward flange projecting inside the locking upward opening recess is provided at a higher level than the outward flange, and the width dimension between the inner wall surfaces of the inward flange facing in the direction perpendicular to the bridge axis. The width dimension in the direction perpendicular to the bridge axis of the outward flange is increased, and the upward flange can be resisted by engaging the outward flange and the inward flange when the upward lift is applied. It is fixed to the additional support provided on the upper side of the structure with bolts , and the downward projection for locking together with the downward projection for locking along the displacement of the lower structure at the time of an earthquake is the direction of the bridge axis or the direction perpendicular to the bridge axis Is a downward projection for locking to which a shock-absorbing cylindrical body made of an elastic material that moves is fixed, and the outer diameter dimension of the outward flange projecting laterally is in the direction of the bridge cylinder. The outer diameter of the outer flange and the outer diameter of the buffer cylinder are different from each other in the inner peripheral wall surface of the inward flange and the upward opening recess. Lateral direction between the peripheral wall In the event of an earthquake, when the second stopper member collides with the downward projection for locking, the shock force is applied by the buffering cylindrical body fitted and fixed to the downward projection. A stopper device for restricting displacement of a structure of a type corresponding to an uplift force, characterized in that a shock absorber is supported .

前記の係止用上向き突起の上部に雄ねじ軸部が設けられ、その雄ねじ軸部に、係止用上向き突起の橋軸直角方向の幅寸法よりも幅寸法の大きいリング状雌ねじ部材がねじ込み固定され、そのリング状の雌ねじ部材により、前記外向きフランジが形成されていることを特徴とする請求項１に記載の上揚力対応型の構造物変位制限用ストッパ装置。 A male screw shaft portion is provided on the upper portion of the locking upward projection, and a ring-shaped female screw member having a width larger than the width of the locking upward projection in the direction perpendicular to the bridge axis is screwed and fixed to the male screw shaft portion. 2. The upper lift-capable structure displacement limiting stopper device according to claim 1, wherein the outward flange is formed by the ring-shaped female screw member.

前記の係止用上向き突起の上部に雌ねじ孔が設けられ、その雌ねじ孔に、係止用上向き突起の橋軸直角方向の幅寸法よりも幅寸法の大きい頭部を有するボルトがねじ込み固定され、そのボルト頭部により、前記外向きフランジが形成されていることを特徴とする請求項１に記載の上揚力対応型の構造物変位制限用ストッパ装置。 A female screw hole is provided in the upper part of the upward protrusion for locking, and a bolt having a head having a width larger than the width dimension in the direction perpendicular to the bridge axis of the upward protrusion for locking is screwed and fixed to the female screw hole. 2. The structure according to claim 1, wherein the outward flange is formed by the bolt head.

前記の係止用下向き突起の下部に雄ねじ軸部が設けられ、その雄ねじ軸部に、係止用下向き突起の橋軸直角方向の幅寸法よりも幅寸法の大きいリング状雌ねじ部材がねじ込み固定され、そのリング状の雌ねじ部材により、前記外向きフランジが形成されていることを特徴とする請求項２に記載の上揚力対応型の構造物変位制限用ストッパ装置。 A male screw shaft portion is provided below the locking downward projection, and a ring-shaped female screw member having a width larger than the width of the locking downward projection in the direction perpendicular to the bridge axis is screwed and fixed to the male screw shaft portion. 3. The upper lift-capable structure displacement limiting stopper device according to claim 2, wherein the outward flange is formed by the ring-shaped female screw member.

前記の係止用下向き突起の下部に雌ねじ孔が設けられ、その雌ねじ孔に、係止用下向き突起の橋軸直角方向の幅寸法よりも幅寸法の大きい頭部を有するボルトがねじ込み固定され、そのボルト頭部により、前記外向きフランジが形成されていることを特徴とする請求項２に記載の上揚力対応型の構造物変位制限用ストッパ装置。 A female screw hole is provided in the lower part of the downward projection for locking, and a bolt having a head having a width larger than the width in the direction perpendicular to the bridge axis of the downward protrusion for locking is screwed and fixed to the female screw hole. The structure according to claim 2, wherein the outward flange is formed by the bolt head.