JP2676685B2 - Elastic support device with built-in control device for lift and horizontal force - Google Patents
Elastic support device with built-in control device for lift and horizontal forceInfo
- Publication number
- JP2676685B2 JP2676685B2 JP7255780A JP25578095A JP2676685B2 JP 2676685 B2 JP2676685 B2 JP 2676685B2 JP 7255780 A JP7255780 A JP 7255780A JP 25578095 A JP25578095 A JP 25578095A JP 2676685 B2 JP2676685 B2 JP 2676685B2
- Authority
- JP
- Japan
- Prior art keywords
- metal plate
- central
- fixed
- central hole
- projection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Bridges Or Land Bridges (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は建築物または、鋼
桁、コンクリート桁等の構造物を地震発生時に有効に免
震することができる弾性支承装置に係り、特にこの地震
による大きな上揚力(負反力)と水平力を制御する装置
を組込んだ弾性支承装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic bearing device capable of effectively isolating a building or a structure such as a steel girder or a concrete girder in the event of an earthquake. The present invention relates to an elastic bearing device incorporating a device for controlling reaction force) and horizontal force.
【0002】[0002]
【従来の技術】従来、構造物の免震装置としては、特公
平3−36094号公報により公表されているものが知
られている。2. Description of the Related Art Conventionally, as a seismic isolation device for structures, one disclosed in Japanese Examined Patent Publication No. 3-36094 is known.
【0003】[0003]
【発明が解決しようとする課題】前記従来の構造物の免
震装置では、これに大きな上揚力や水平力が作用した場
合、当該免震装置における移動制限装置(水平力制限装
置)やアップリフト(上揚力)止め装置(負反力防止装
置)では対応が困難で、この上揚力や水平力等に対処す
る構造とした場合にはこの支承構造が大型になるという
欠点があった。In the conventional seismic isolation device for a structure, when a large lifting force or a horizontal force is applied to the seismic isolation device for a structure, a movement restricting device (horizontal force restricting device) or an uplift is applied to the seismic isolating device. The (uplift) stop device (negative reaction force prevention device) is difficult to handle, and if the structure is designed to deal with the lift and horizontal force, the bearing structure becomes large.
【0004】本発明は、水平力や上揚力を制御するため
の移動制限装置やアップリフト止め装置を一つにまとめ
て弾性支承装置の中央部に配設することにより、装置を
コンパクトできる弾性支承装置を提供することを目的と
する。According to the present invention, a movement restricting device for controlling a horizontal force and an upward lift force and an uplift stopping device are collectively provided in a central portion of the elastic supporting device, so that the elastic supporting device can be made compact. The purpose is to provide a device.
【0005】[0005]
【課題を解決するための手段】前記の目的を達成するた
め、本発明に係る上揚力と水平力の制御装置組込み弾性
支承装置は、基礎構造物4に固定した下部金属板3の中
央部に下側が拡径する段付きの中央部突起5を突設し、
下部金属板3に中間ゴム層13と補強金属板14を交互
に積層してなる弾性支承体7を載置し、当該弾性支承体
7の中心孔と前記中央部突起5との間に大小の間隙を設
け、中央部突起5に固定したアップリフト止め金具12
により、上側の構造物9に固定した上部金属板11の中
心孔の周縁部上面を押さえ、アップリフト止め金具12
と上部金属板11の中心孔の内周との間に間隙を設け、
かつ上部金属板11の中心孔の内径を中央部突起5の上
段部外径よりも大に設けたことを特徴とする。In order to achieve the above-mentioned object, an elastic bearing device incorporating an upper lift force and horizontal force control device according to the present invention is provided at a central portion of a lower metal plate 3 fixed to a substructure 4. A stepped central portion projection 5 whose diameter is expanded on the lower side is projected,
On the lower metal plate 3, an elastic support body 7 in which an intermediate rubber layer 13 and a reinforcing metal plate 14 are alternately laminated is placed, and a large or small space is provided between the center hole of the elastic support body 7 and the central projection 5. Uplift stopper 12 fixed to the central projection 5 with a gap
Holds the upper surface of the peripheral portion of the center hole of the upper metal plate 11 fixed to the upper structure 9 by the
And a gap between the inner periphery of the center hole of the upper metal plate 11 and
Moreover, the inner diameter of the central hole of the upper metal plate 11 is larger than the outer diameter of the upper step portion of the central projection 5.
【0006】また本発明は下部金属板3を、これに固定
したアンカー部材1を介して基礎構造物4に固定し、下
部金属板3の中央部に、上部外周に雄ネジ部15を有す
ると共に、下側が大径となる複数の段部を外周に有する
中央部突起5を固定し、ボルト又はアンカー部材を介し
て構造物9の下部にソールプレート8を固定し、ソール
プレート8の下部に配した上部金属板11と前記下部金
属板3との間に中間ゴム層13と複数の補強金属板14
を厚み方向に交互に積層してなる弾性支承体7を介設
し、前記中央部突起5の段部から上方の外周と弾性支承
体7の中心孔の周囲との間に大小の間隙30,31を設
け、上部金属板11の中心孔に挿入し、かつ中央部突起
5の雄ネジ部15に螺合した略ナット形状のアップリフ
ト止め金具12の鍔部27により上部金属板11の中心
孔の段部上面28を押さえ、アップリフト止め金具12
と上部金属板11の中心孔の周囲との間に間隙を設け、
上部金属板11の中心孔の内径を中央部突起5の上段部
外径よりも大に設けたことを特徴とする。Further, according to the present invention, the lower metal plate 3 is fixed to the substructure 4 via the anchor member 1 fixed to the lower metal plate 3, and at the center of the lower metal plate 3, the male screw portion 15 is provided on the outer periphery of the upper portion. , The central portion projection 5 having a plurality of stepped portions having a large diameter on the lower side on the outer periphery is fixed, the sole plate 8 is fixed to the lower portion of the structure 9 via a bolt or an anchor member, and the sole plate 8 is arranged on the lower portion of the sole plate 8. The intermediate rubber layer 13 and the plurality of reinforcing metal plates 14 are provided between the upper metal plate 11 and the lower metal plate 3.
Elastic supporting bodies 7 are alternately laminated in the thickness direction, and large and small gaps 30 are provided between the outer periphery above the step of the central projection 5 and the periphery of the central hole of the elastic supporting body 7. 31 is provided, is inserted into the central hole of the upper metal plate 11, and is screwed into the male screw portion 15 of the central projection 5 by the flange portion 27 of the substantially nut-shaped uplift stopper 12 having the central hole of the upper metal plate 11. Hold the step upper surface 28 of the
And a space around the center hole of the upper metal plate 11,
It is characterized in that the inner diameter of the central hole of the upper metal plate 11 is set larger than the outer diameter of the upper step portion of the central projection 5.
【0007】また、前記雄ネジ部15に略ナット形状の
アップリフト止め金具12を螺合する固定手段に代え
て、板状のアップリフト止め金具12aのネジ孔39に
挿通する固定ネジ40を、中央部突起5の上端面の雌ネ
ジ部41に螺合することによってアップリフト止め金具
12aを中央部突起5に固定してもよい。Further, in place of the fixing means for screwing the substantially nut-shaped uplift stopper 12 into the male screw portion 15, a fixing screw 40 which is inserted into the screw hole 39 of the plate-shaped uplift stopper 12a is provided. The uplift stopper 12a may be fixed to the central projection 5 by being screwed into the female screw portion 41 on the upper end surface of the central projection 5.
【0008】本発明の構成によると、地震による上揚力
に対しては、上部金属板11の中央孔の周縁部上面を中
央部突起5に固着したアップリフト止め金具12で押さ
えることで確実に制御することができる。また地震によ
る水平力に対しては弾性支承体7の中心孔の内周面が段
付きの中央部突起5の外周に大小の間隙を介して順次係
合することにより、大きな水平力も段階的に低減され、
よって大きな水平力を有効かつ円滑に制震できる。この
ように、本発明では地震による水平力と上揚力を制御す
る装置が弾性支承装置の中央部にコンパクトにまとめて
組込まれている。According to the structure of the present invention, the upper lift force caused by an earthquake is reliably controlled by pressing the upper surface of the peripheral edge of the central hole of the upper metal plate 11 with the uplift stopper 12 fixed to the central projection 5. can do. With respect to the horizontal force due to the earthquake, the inner peripheral surface of the central hole of the elastic support 7 is sequentially engaged with the outer periphery of the stepped central portion projection 5 through the small and large gaps, so that the large horizontal force is gradually increased. Reduced,
Therefore, a large horizontal force can be effectively and smoothly controlled. As described above, according to the present invention, the device for controlling the horizontal force and the lift force due to an earthquake is compactly assembled in the central portion of the elastic bearing device.
【0009】[0009]
【発明の実施の形態】以下本発明の実施の形態を図を参
照して説明する。図1〜図7は本発明の第1の実施の形
態を示し、図2に示すように下部金属板3に開設された
孔6にアンカー部材1を下方から挿通し、下部金属板3
の上面においてアンカー部材1のネジ部にナット2を螺
合することで、アンカー部材1が下部金属板3に固着さ
れており、図1に示すようにこのアンカー部材1が基礎
構造物4に埋設されている。下部金属板3の中央部には
円形孔10が設けられており、この円形孔10に軸方向
と直交する断面が円形の鋼製の中央部突起5の下部が嵌
入されて、溶接により固着されている。中央部突起5
は、その上端部外周に雄ネジ部15が形成されており、
さらにその下側に順次径が大きくなるように第1,第
2,第3の段部16,17,18が設けられており、前
記下部金属板3の円形孔10に嵌入されるのは、第3段
18から下側の大径部である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show a first embodiment of the present invention. As shown in FIG. 2, the anchor member 1 is inserted from below into a hole 6 formed in the lower metal plate 3, and the lower metal plate 3 is inserted.
The anchor member 1 is fixed to the lower metal plate 3 by screwing the nut 2 into the threaded portion of the anchor member 1 on the upper surface of the anchor member 1, and the anchor member 1 is embedded in the substructure 4 as shown in FIG. Has been done. A circular hole 10 is provided in the central portion of the lower metal plate 3, and the lower portion of a steel central projection 5 having a circular cross section orthogonal to the axial direction is fitted into the circular hole 10 and fixed by welding. ing. Central protrusion 5
Has a male screw portion 15 formed on the outer periphery of its upper end,
Further, on the lower side thereof, first, second, and third step portions 16, 17, and 18 are provided so that the diameter becomes larger, and the circular hole 10 of the lower metal plate 3 is fitted into the circular hole 10. It is a large-diameter portion below the third step 18.
【0010】図2および図3には、本発明の実施の形態
において用いられるセットボルト19とソールプレート
8その他の部材が示されており、円形の鋼板からなるソ
ールプレート8に複数のボルト挿入孔21が形成されて
おり、このボルト挿入孔21には、構造物9である鋼桁
の主桁22の底板23のボルト孔32を挿通したセット
ボルト19が挿入される。2 and 3 show a set bolt 19 and a sole plate 8 and other members used in the embodiment of the present invention. The sole plate 8 made of a circular steel plate has a plurality of bolt insertion holes. 21 is formed in the bolt insertion hole 21. The set bolt 19 inserted into the bolt hole 32 of the bottom plate 23 of the main girder 22 of the steel girder, which is the structure 9, is inserted into the bolt insertion hole 21.
【0011】さらに、図1および図2には、アップリフ
ト(上揚力)止め金具12と上部金属板11と弾性支承
体7が示されている。上部金属板11は円形鋼板からな
り、中間部に段部を有し、上側が大径で下側が小径の中
心孔24を有し、さらに中心孔24の外方にはセットボ
ルト19の螺合する複数の雌ネジ部25を有している。
アップリフト止め金具12は、略ナット形状で内側に雌
ネジ孔26を有し、また上部に鍔部27を有している。
このアップリフト止め金具12は、上部金属板11の中
心孔24に嵌合するもので、このとき、当該アップリフ
ト止め金具12の鍔部27が中心孔24の段部上面28
を押さえる。Further, FIGS. 1 and 2 show an uplift stopper 12, an upper metal plate 11 and an elastic support 7. The upper metal plate 11 is made of a circular steel plate, has a step portion in the middle, has a central hole 24 having a large diameter on the upper side and a small diameter on the lower side, and the set bolt 19 is screwed to the outside of the central hole 24. It has a plurality of female threaded portions 25.
The uplift stopper 12 has a substantially nut shape and has a female screw hole 26 on the inner side and a flange 27 on the upper side.
The uplift stopper 12 is fitted in the center hole 24 of the upper metal plate 11, and at this time, the flange 27 of the uplift stopper 12 has the stepped upper surface 28 of the center hole 24.
Hold down.
【0012】また、弾性支承体7はドーナツ形状であっ
て、中心孔29を有し、中間ゴム層13と複数の補強金
属板14とを厚み方向に交互に支承して構成される。The elastic support 7 has a donut shape, has a center hole 29, and is formed by alternately supporting the intermediate rubber layer 13 and the plurality of reinforcing metal plates 14 in the thickness direction.
【0013】前記の構成により本発明の実施の形態に係
る上揚力と水平力の制御装置組込み弾性支承装置は構成
され、図1はその組立断面図を示すものであって、基礎
構造物4の上面に下部金属板3が載置されると共に、前
記アンカー部材1が基礎構造物4に埋設され、かつ弾性
支承体7の下部の補強金属板14が下部金属板3の上面
に載置され、上部の補強金属板14の上面が上部金属板
11の下面と接している。An elastic support device incorporating the upper lift force and horizontal force control device according to the embodiment of the present invention is constructed by the above-described structure, and FIG. The lower metal plate 3 is placed on the upper surface, the anchor member 1 is embedded in the substructure 4, and the reinforcing metal plate 14 below the elastic support 7 is placed on the upper surface of the lower metal plate 3. The upper surface of the upper reinforcing metal plate 14 is in contact with the lower surface of the upper metal plate 11.
【0014】また、このとき、弾性支承体7の垂直な中
心孔29の内周面は中央部突起5の第3段外周面18a
に隙間なく嵌合しており、かつその上側において中心孔
29の内周面と中央部突起5の第1段外周面16a及び
第2段外周面17aとの間に大間隙30と小間隙31が
設けられている。At this time, the inner peripheral surface of the vertical center hole 29 of the elastic support 7 is the outer peripheral surface 18a of the third step of the central projection 5.
And a large gap 30 and a small gap 31 between the inner peripheral surface of the center hole 29 and the first outer peripheral surface 16a and the second outer peripheral surface 17a of the central projection 5 on the upper side thereof. Is provided.
【0015】前記弾性支承体7の上側に配設された上部
金属板11の雌ネジ部25には、鋼製桁の主桁22の底
板23とソールプレート8にそれぞれ形成されたボルト
挿入孔32,21に挿入したセットボルト19を螺合し
ており、それにより、ソールプレート8を介して上部金
属板11が鋼桁の主桁22に固定される。In the female screw portion 25 of the upper metal plate 11 arranged on the upper side of the elastic support 7, bolt insertion holes 32 formed in the bottom plate 23 of the steel girder main girder 22 and the sole plate 8, respectively. , 21 are screwed into the set bolts 19, so that the upper metal plate 11 is fixed to the main girders 22 of the steel girders via the sole plate 8.
【0016】またこのとき、上部金属板11の中心孔2
4を挿通してアップリフト止め金具12が配設され、そ
の雌ネジ部26が中央部突起5の雄ネジ部15に螺合さ
れており、それにより当該止め金具12の鍔部27が前
記中心孔24の段部上面28を押圧している。ここで、
図4に示されるように、アップリフト止め金具12と中
心孔24の内周面との間には段部の上下側において一定
の間隙20a,20bが形成されている。At this time, the central hole 2 of the upper metal plate 11
4, the uplift stopper 12 is provided, and the female screw portion 26 thereof is screwed into the male screw portion 15 of the central projection 5, whereby the collar portion 27 of the stopper 12 is at the center. The stepped upper surface 28 of the hole 24 is pressed. here,
As shown in FIG. 4, constant gaps 20a and 20b are formed between the uplift stopper 12 and the inner peripheral surface of the center hole 24 on the upper and lower sides of the step.
【0017】前記間隙20a,20bは、固定支承の場
合は上方の主桁22の回転を許容する最小値とし、ま
た、可動支承の場合は必要移動量だけとるのがよい。It is preferable that the gaps 20a and 20b have a minimum value that allows rotation of the upper main girder 22 in the case of a fixed bearing, and that only a necessary movement amount is required in the case of a movable bearing.
【0018】また、上部金属板11の中心孔24の下部
の内径は、中央部突起5の第1段外周面16aの外径よ
りも若干大に設けられている。また、中央部突起5及び
アップリフト止め金具12の上端面と、ソールプレート
8の下面との間にも所定の間隙33が形成されている。The inner diameter of the lower portion of the center hole 24 of the upper metal plate 11 is set to be slightly larger than the outer diameter of the first step outer peripheral surface 16a of the central projection 5. Further, a predetermined gap 33 is formed between the upper end surface of the central portion projection 5 and the uplift stopper 12 and the lower surface of the sole plate 8.
【0019】次に、図8,図9は本発明の第2の実施の
形態を示すものである。第1の発明の実施の形態では弾
性支承装置が鋼製桁を支持するものであったのに対し、
この第2の発明の実施の形態では弾性支承装置が構造物
9であるコンクリート製桁を支持する例を示しており、
このように支持する対象が異なることに伴なって、その
被支持体に対する弾性支承装置の固定構造が若干相違し
ている。Next, FIGS. 8 and 9 show a second embodiment of the present invention. In the embodiment of the first invention, while the elastic bearing device supports the steel girder,
In the embodiment of the second invention, an example in which the elastic bearing device supports the concrete girder that is the structure 9 is shown.
Due to the difference in the object to be supported in this way, the fixing structure of the elastic support device to the supported body is slightly different.
【0020】すなわち、本発明の第2の実施の形態で
は、図8,図9に示されるように上部金属板11に設け
られた雌ネジ部25にアンカー部材35の下端の雄ネジ
部34が螺合しており上部の構造物9の構築時におい
て、前記アンカー部材35が内部に埋設されるようにし
てコンクリートが打設される。That is, in the second embodiment of the present invention, as shown in FIGS. 8 and 9, the female screw portion 25 provided on the upper metal plate 11 is provided with the male screw portion 34 at the lower end of the anchor member 35. When the structure 9 is screwed and the upper structure 9 is constructed, concrete is poured so that the anchor member 35 is embedded inside.
【0021】また、第2の発明の実施の形態では、コン
クリート打設時に流動コンクリートが上部金属板11の
中心孔24とアップリフト止め金具12との隙間を流れ
て、間隙20a,20bを埋めるおそれをなくするた
め、前記中心孔24の上端開口部を閉じる蓋板36が設
けられている。すなわち、蓋板36を挿通する固定ネジ
37を上部金属板11の雌ネジ部38に螺合して蓋板3
6を上部金属板11の上面に固定し、中心孔24の上部
開孔を閉塞することで、この中心孔24に流動コンクリ
ートが流入する不具合を除去している。なお、第2の発
明の実施の形態では、ソールプレート8は省略されてい
る。他の構成は第1の発明の実施の形態と同じである。Further, in the second embodiment of the present invention, when pouring concrete, the flowing concrete may flow through the gap between the center hole 24 of the upper metal plate 11 and the uplift stopper 12 to fill the gaps 20a and 20b. In order to eliminate the above, a lid plate 36 that closes the upper end opening of the center hole 24 is provided. That is, the fixing screw 37 that inserts the lid plate 36 is screwed into the female screw portion 38 of the upper metal plate 11, and the lid plate 3 is inserted.
By fixing 6 to the upper surface of the upper metal plate 11 and closing the upper opening of the central hole 24, the problem that the flowing concrete flows into the central hole 24 is eliminated. In addition, in the embodiment of the second invention, the sole plate 8 is omitted. The other structure is the same as that of the first embodiment.
【0022】次に、図10,図11,図12は本発明の
第3の実施の形態を示すものである。第1,第2の発明
の実施の形態では、略ナット形状のアップリフト止め金
具12を中央部突起5の雄ネジ部15に螺合しているの
に対し、第3の発明の実施の形態では、板状のアップリ
フト止め金具12aにネジ孔39を設け、このネジ孔3
9に挿入する固定ネジ40を中央部突起5の上端面の雌
ネジ部41に螺合することにより、アップリフト止め金
具12aを中央部突起5に固定している。他の構成は、
第1,第2の発明の実施の形態と同じである。Next, FIGS. 10, 11, and 12 show a third embodiment of the present invention. In the embodiments of the first and second inventions, the substantially nut-shaped uplift stopper 12 is screwed into the male screw portion 15 of the central projection 5, while in the embodiment of the third invention. Then, the plate-like uplift stopper 12a is provided with a screw hole 39.
The uplift stopper 12a is fixed to the central protrusion 5 by screwing a fixing screw 40 to be inserted into the female screw portion 9 into the female screw portion 41 on the upper end surface of the central protrusion 5. Other configurations are
This is the same as the first and second embodiments of the invention.
【0023】第1,第2,第3の発明の実施の形態にお
ける作用を説明すると、地震が発生し、弾性支承装置に
大きな上揚力(アップリフト)が作用したとき、上部金
属板11の中心孔24の段部上面28が中央部突起5に
螺着固定したアップリフト止め金具12の鍔部27で押
さえられており、中央部突起5が下部金属板3と一体で
あることから、前記上部金属板11と上方の構造物9に
加わる上揚力はアップリフト止め金具12で制御(防
止)される。The operation of the embodiments of the first, second and third inventions will be described. When an earthquake occurs and a large uplift is applied to the elastic support device, the center of the upper metal plate 11 is The upper surface 28 of the stepped portion of the hole 24 is pressed by the flange portion 27 of the uplift stopper 12 that is screwed and fixed to the central portion projection 5, and the central portion projection 5 is integrated with the lower metal plate 3. The uplift force applied to the metal plate 11 and the upper structure 9 is controlled (prevented) by the uplift stopper 12.
【0024】また、上揚力が制御され、次に下向きの力
が作用したときは、上部金属板11が、弾性支承体7で
支えられており、かつ中心孔29の内径が中央部突起5
の第1段外周16aの外径より大径であることから、当
該上部金属板11は弾性支承体7を圧縮させながら下方
に円滑に移動し制震を行なう。When the upward lift is controlled and the downward force is applied next, the upper metal plate 11 is supported by the elastic support 7 and the inner diameter of the central hole 29 is the central projection 5.
Since the diameter is larger than the outer diameter of the outer periphery 16a of the first stage, the upper metal plate 11 smoothly moves downward while compressing the elastic support body 7 to perform vibration control.
【0025】次に、弾性支承装置に水平力が作用したと
きは、中央部突起5がストッパとなって弾性支承体7と
上部金属板11の水平移動を制限し制震できる。しか
も、このとき、中央部突起5の第1と第2の段部外周1
6a,17aと弾性支承体7の中心孔29との間には大
小の間隙30,31があるので、弾性支承体7はまず小
間隙31を形成する第2段外周面17aと当って水平力
が一部低減され、つぎに大間隙31を形成する第1段外
周面16aと当ってさらに水平力が低減される。このよ
うに、本発明の実施の形態では、大きな水平力を一度に
制震するのではなく、複数段に分けて制震していること
で、大きな水平力も円滑に低減できる。Next, when a horizontal force is applied to the elastic support device, the central projection 5 serves as a stopper to limit the horizontal movement of the elastic support body 7 and the upper metal plate 11 to suppress the vibration. Moreover, at this time, the outer circumference 1 of the first and second step portions of the central projection 5
Since there are large and small gaps 30 and 31 between 6a and 17a and the central hole 29 of the elastic bearing body 7, the elastic bearing body 7 first comes into contact with the second step outer peripheral surface 17a which forms the small gap 31 and the horizontal force. Is partially reduced, and then the first step outer peripheral surface 16a forming the large gap 31 is abutted to further reduce the horizontal force. As described above, in the embodiment of the present invention, the large horizontal force is not controlled at one time but is controlled in a plurality of stages, so that the large horizontal force can be smoothly reduced.
【0026】つぎに、弾性支承体7に支持された上部金
属板11の中心孔24の内周とアップリフト止め金具1
2との間にも一定の間隙20a,20bが形成されてい
るので、この間隙20a,20bを介して上部金属板1
1の水平方向の移動や構造物9の回動を円滑に制御でき
る。なお、アップリフト止め金具12を中央部突起5に
固着する手段として、図示の雄ネジ部15と雌ネジ部2
6の螺合や、固定ネジ40の雌ネジ部41への螺合に代
えて、クサビ等により固着する手段を使用してもよい
(但し、図示せず)。Next, the inner periphery of the center hole 24 of the upper metal plate 11 supported by the elastic support 7 and the uplift stopper 1
Since constant gaps 20a, 20b are also formed between the upper metal plate 1 and the upper metal plate 1,
The horizontal movement of 1 and the rotation of the structure 9 can be smoothly controlled. The male screw portion 15 and the female screw portion 2 shown in the figure serve as means for fixing the uplift stopper 12 to the central projection 5.
Instead of screwing 6 and screwing the fixing screw 40 to the female screw portion 41, a means for fixing with a wedge or the like may be used (however, not shown).
【0027】[0027]
【発明の効果】以上説明したように、本発明の弾性支承
装置によると、中央部突起5に固着したアップリフト止
め金具12で上方の構造物9を固定する上部金属板11
の上揚力を確実に制御できると共に、ストッパである中
央部突起5が段部を有しているので弾性支承体7が水平
方向に移動するとき、厚み方向に段階的に中央部突起5
と係合することになり、よって水平方向の移動制限も円
滑に行なわせることができる。As described above, according to the elastic bearing device of the present invention, the upper metal plate 11 for fixing the upper structure 9 with the uplift stopper 12 fixed to the central projection 5 is provided.
The upper lift of the upper part can be reliably controlled, and since the central projection 5 as a stopper has a step, when the elastic support 7 moves in the horizontal direction, the central projection 5 gradually increases in the thickness direction.
Thus, the horizontal movement restriction can be smoothly performed.
【0028】しかも、これら地震等による上揚力と水平
力を制御する装置は、弾性支承装置の中央部にコンパク
トに配置されているので、下部構造(橋脚等)又は上部
構造(桁等)の配置のスペースの関係で弾性支承装置の
外側に上揚力、負反力防止装置が取付けられない場合等
に適用するときに有益である。Moreover, since the device for controlling the upper lift force and the horizontal force due to the earthquake or the like is compactly arranged in the central portion of the elastic support device, the lower structure (pier or the like) or the upper structure (girder or the like) is arranged. This is useful when the upper bearing and the negative reaction force preventing device are not attached to the outside of the elastic support device due to the space of the above.
【0029】また、本発明では弾性支承体7は、そのセ
ンターに移動制限装置(つまりストッパ)である中央部
突起5を通すための中心孔を有したドーナツ型をしてい
るため、上方の構造物(桁)の回転や伸縮方向に方向性
の制限がなく、ループ橋,カーブ橋,斜橋などにも対応
できる。Further, in the present invention, the elastic support member 7 is of a donut type having a central hole for passing the central projection 5 which is a movement restricting device (that is, a stopper) in the center thereof, and therefore the upper structure is provided. There is no restriction on the direction of rotation or expansion / contraction of objects (girders), and it can be used for loop bridges, curved bridges, oblique bridges, etc.
【図1】本発明の第1の実施の形態に係る弾性支承装置
を示す縦断側面図である。FIG. 1 is a vertical cross-sectional side view showing an elastic bearing device according to a first embodiment of the present invention.
【図2】図1の各部材を互いに分離して示す縦断側面図
である。FIG. 2 is a vertical cross-sectional side view showing the members of FIG. 1 separated from each other.
【図3】図1のA−A断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 1;
【図4】本発明の上揚力と水平力制御装置の拡大縦断面
図である。FIG. 4 is an enlarged vertical sectional view of the lifting force and horizontal force control device of the present invention.
【図5】図1の構造物を取除いた状態での平面図であ
る。5 is a plan view with the structure of FIG. 1 removed.
【図6】上部金属板の平面図である。FIG. 6 is a plan view of an upper metal plate.
【図7】弾性支承体の平面図である。FIG. 7 is a plan view of an elastic bearing body.
【図8】本発明の第2の実施の形態に係る弾性支承装置
を示す縦断側面図である。FIG. 8 is a vertical sectional side view showing an elastic support device according to a second embodiment of the present invention.
【図9】図8の各部材を互いに分離して示す縦断側面図
である。9 is a vertical cross-sectional side view showing the respective members of FIG. 8 separated from each other.
【図10】本発明の第3の実施の形態に係る弾性支承装
置を示す縦断側面図である。FIG. 10 is a vertical sectional side view showing an elastic bearing device according to a third embodiment of the present invention.
【図11】図10の各部材を互いに分離して示す縦断側
面図である。FIG. 11 is a vertical cross-sectional side view showing each member of FIG. 10 separated from each other.
【図12】本発明の上揚力と水平力制御装置の拡大縦断
面図である。FIG. 12 is an enlarged vertical sectional view of the lifting force and horizontal force control device of the present invention.
1 アンカー部材 2 ナット 3 下部金属板 4 基礎構造物 5 中央部突起 6 孔 7 弾性支承体 8 ソールプレート 9 構造物 10 円形孔 11 上部金属板 12 アップリフト止め金具 13 中間ゴム層 14 補強金属板 15 雄ネジ部 16 第1段部 17 第2段部 18 第3段部 19 セットボルト 20a 間隙 20b 間隙 21 ボルト挿入孔 22 主桁 23 底板 24 中心孔 25 雌ネジ部 26 雌ネジ部 27 鍔部 28 段部上面 29 中心孔 30 大間隙 31 小間隙 32 ボルト挿入孔 33 間隙 34 雄ネジ部 35 アンカー部材 36 蓋板 37 固定ネジ 38 雌ネジ部 39 ネジ孔 40 固定ネジ 41 雌ネジ部 DESCRIPTION OF SYMBOLS 1 Anchor member 2 Nut 3 Lower metal plate 4 Foundation structure 5 Center part protrusion 6 Hole 7 Elastic bearing 8 Sole plate 9 Structure 10 Circular hole 11 Upper metal plate 12 Uplift stopper 13 Intermediate rubber layer 14 Reinforcing metal plate 15 Male screw part 16 1st step part 17 2nd step part 18 3rd step part 19 Set bolt 20a Gap 20b Gap 21 Bolt insertion hole 22 Main girder 23 Bottom plate 24 Center hole 25 Female screw part 26 Female screw part 27 Collar part 28 steps Top surface 29 Center hole 30 Large gap 31 Small gap 32 Bolt insertion hole 33 Gap 34 Male screw part 35 Anchor member 36 Lid plate 37 Fixing screw 38 Female screw part 39 Screw hole 40 Fixing screw 41 Female screw part
Claims (3)
中央部に下側が拡径する段付きの中央部突起5を突設
し、下部金属板3に中間ゴム層13と補強金属板14を
交互に積層してなる弾性支承体7を載置し、当該弾性支
承体7の中心孔と前記中央部突起5との間に大小の間隙
を設け、中央部突起5に固定したアップリフト止め金具
12により、上側の構造物9に固定した上部金属板11
の中心孔の周縁部上面を押さえ、アップリフト止め金具
12と上部金属板11の中心孔の内周との間に間隙を設
け、かつ上部金属板11の中心孔の内径を中央部突起5
の上段部外径よりも大に設けたことを特徴とする上揚力
と水平力の制御装置組込み弾性支承装置。1. A lower metal plate (3) fixed to a substructure (4) is provided with a stepped central portion projection (5) having a lower diameter, and an intermediate rubber layer (13) and a reinforcing metal plate are provided on the lower metal plate (3). An uplift which is mounted on the elastic support body 7 in which 14 are alternately laminated, and a large and small gap is provided between the central hole of the elastic support body 7 and the central projection 5 and is fixed to the central projection 5. The upper metal plate 11 fixed to the upper structure 9 by the fasteners 12.
The upper surface of the peripheral portion of the central hole of the upper metal plate 11 is pressed, a gap is provided between the uplift stopper 12 and the inner periphery of the central hole of the upper metal plate 11, and the inner diameter of the central hole of the upper metal plate 11 is set to the central projection 5.
An elastic bearing device with a built-in control device for upper lift and horizontal force, which is larger than the outer diameter of the upper step.
ー部材1を介して基礎構造物4に固定し、下部金属板3
の中央部に、上部外周に雄ネジ部15を有すると共に、
下側が大径となる複数の段部を外周に有する中央部突起
5を固定し、ボルト又はアンカー部材を介して構造物9
の下部にソールプレート8を固定し、ソールプレート8
の下部に配した上部金属板11と前記下部金属板3との
間に中間ゴム層13と複数の補強金属板14を厚み方向
に交互に積層してなる弾性支承体7を介設し、前記中央
部突起5の段部から上方の外周と弾性支承体7の中心孔
の周囲との間に大小の間隙30,31を設け、上部金属
板11の中心孔に挿入し、かつ中央部突起5の雄ネジ部
15に螺合した略ナット形状のアップリフト止め金具1
2の鍔部27により上部金属板11の中心孔の段部上面
28を押さえ、アップリフト止め金具12と上部金属板
11の中心孔の周囲との間に間隙を設け、上部金属板1
1の中心孔の内径を中央部突起5の上段部外径よりも大
に設けたことを特徴とする上揚力と水平力の制御装置組
込み弾性支承装置。2. A lower metal plate 3 is fixed to a substructure 4 via an anchor member 1 fixed to the lower metal plate 3,
In the central part of the
A central portion projection 5 having a plurality of stepped portions having a large diameter on the lower side on the outer periphery is fixed, and a structure 9 is provided through a bolt or an anchor member.
The sole plate 8 is fixed to the lower part of the
Between the upper metal plate 11 and the lower metal plate 3 arranged in the lower part of the intermediate elastic layer 13 and a plurality of reinforcing metal plates 14 are alternately laminated in the thickness direction, and an elastic support member 7 is interposed. Large and small gaps 30 and 31 are provided between the outer periphery of the central projection 5 above the step and the periphery of the central hole of the elastic support 7, and the central projection 5 is inserted into the central hole of the upper metal plate 11. Up-lift stopper metal fitting 1 in the shape of a nut screwed into the male thread 15 of the
The upper flange 28 of the upper metal plate 11 is pressed against the upper surface 28 of the step portion of the central hole of the upper metal plate 11, and a gap is provided between the uplift stopper 12 and the periphery of the central hole of the upper metal plate 11.
1. An elastic bearing device incorporating an upper lift force and horizontal force control device, characterized in that the inner diameter of the central hole of No. 1 is set larger than the outer diameter of the upper step portion of the central projection 5.
ー部材1を介して基礎構造物4に固定し、下部金属板3
の中央部に、上部外周に雄ネジ部15を有すると共に、
下側が大径となる複数の段部を外周に有する中央部突起
5を固定し、ボルト又はアンカー部材を介して構造物9
の下部にソールプレート8を固定し、ソールプレート8
の下部に配した上部金属板11と前記下部金属板3との
間に中間ゴム層13と複数の補強金属板14を厚み方向
に交互に積層してなる弾性支承体7を介設し、前記中央
部突起5の段部から上方の外周と弾性支承体7の中心孔
の周囲との間に大小の間隙30,31を設け、上部金属
板11の中心孔に挿入したアップリフト止め金具12a
の鍔部27により上部金属板11の中心孔の段部上面2
8を押さえ、アップリフト止め金具12aと上部金属板
11の中心孔の周囲との間に間隙を設け、中央部突起5
の上端面の雌ネジ部41に、アップリフト止め金具12
aのネジ孔39を挿通して固定ネジ40を螺合し、上部
金属板11の中心孔の内径を中央部突起5の上段部外径
よりも大に設けたことを特徴とする上揚力と水平力の制
御装置組込み弾性支承装置。3. A lower metal plate 3 is fixed to a substructure 4 via an anchor member 1 fixed to the lower metal plate 3.
In the central part of the
A central portion projection 5 having a plurality of stepped portions having a large diameter on the lower side on the outer periphery is fixed, and a structure 9 is provided through a bolt or an anchor member.
The sole plate 8 is fixed to the lower part of the
Between the upper metal plate 11 and the lower metal plate 3 arranged in the lower part of the intermediate elastic layer 13 and a plurality of reinforcing metal plates 14 are alternately laminated in the thickness direction, and an elastic support member 7 is interposed. Uplift metal fittings 12a inserted into the central hole of the upper metal plate 11 are provided with large and small gaps 30 and 31 between the outer periphery above the step of the central projection 5 and the periphery of the central hole of the elastic support 7.
The upper surface 2 of the step portion of the central hole of the upper metal plate 11 by the flange portion 27 of
8 is provided and a gap is provided between the uplift stopper 12a and the periphery of the center hole of the upper metal plate 11.
To the female screw portion 41 on the upper end surface of the
The upper lift force is characterized in that the fixing screw 40 is inserted through the screw hole 39 of a and the inner diameter of the central hole of the upper metal plate 11 is set larger than the outer diameter of the upper step portion of the central protrusion 5. Elastic support device with horizontal force controller.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7255780A JP2676685B2 (en) | 1995-09-08 | 1995-09-08 | Elastic support device with built-in control device for lift and horizontal force |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7255780A JP2676685B2 (en) | 1995-09-08 | 1995-09-08 | Elastic support device with built-in control device for lift and horizontal force |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0978529A JPH0978529A (en) | 1997-03-25 |
JP2676685B2 true JP2676685B2 (en) | 1997-11-17 |
Family
ID=17283533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7255780A Expired - Fee Related JP2676685B2 (en) | 1995-09-08 | 1995-09-08 | Elastic support device with built-in control device for lift and horizontal force |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2676685B2 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200340118Y1 (en) * | 2003-10-17 | 2004-01-31 | 동일고무벨트주식회사 | Bridge bearing |
JP4549230B2 (en) * | 2005-05-13 | 2010-09-22 | 株式会社川金コアテック | Composite bearing for bridge |
JP4740720B2 (en) * | 2005-11-09 | 2011-08-03 | ニッタ株式会社 | Elastic bearings for structures |
JP2008133644A (en) * | 2006-11-28 | 2008-06-12 | Kawaguchi Metal Industries Co Ltd | Fixed bearing structure for bridge |
JP5065745B2 (en) * | 2007-04-23 | 2012-11-07 | 東京ファブリック工業株式会社 | Elastic fixed bearing |
JP4953460B2 (en) * | 2008-03-28 | 2012-06-13 | 株式会社美和テック | One-way movable bearing device for bridges |
JP5651429B2 (en) * | 2010-10-27 | 2015-01-14 | 株式会社Ihiインフラシステム | Bearing device |
JP6247041B2 (en) * | 2013-07-31 | 2017-12-13 | 株式会社美和テック | One-way movable bearing device for bridges |
KR101949142B1 (en) * | 2016-12-16 | 2019-02-19 | 대창이엔지 주식회사 | Spherical bearing with drawing protecting punction |
KR101939149B1 (en) * | 2017-02-23 | 2019-01-17 | 대창이엔지 주식회사 | Pot bearing with drawing protecting punction |
KR102222899B1 (en) * | 2018-04-13 | 2021-03-05 | 대창이엔지 주식회사 | Spherical bearing for withdrawing protecting function using t-typed up-lift withdrawing protecting bar and guide plate |
CN109024271B (en) * | 2018-06-20 | 2020-05-15 | 广西交科集团有限公司 | Construction method of built-in concrete beam bridge steel-concrete anchor capable of limiting local cracking |
JP7312422B2 (en) * | 2018-06-29 | 2023-07-21 | シバタ工業株式会社 | bridge displacement limiter |
-
1995
- 1995-09-08 JP JP7255780A patent/JP2676685B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0978529A (en) | 1997-03-25 |
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