JP2527667B2 - Preliminary shear deformation installation method and preliminary shear deformation installation device for rubber bearing - Google Patents
Preliminary shear deformation installation method and preliminary shear deformation installation device for rubber bearingInfo
- Publication number
- JP2527667B2 JP2527667B2 JP4097458A JP9745892A JP2527667B2 JP 2527667 B2 JP2527667 B2 JP 2527667B2 JP 4097458 A JP4097458 A JP 4097458A JP 9745892 A JP9745892 A JP 9745892A JP 2527667 B2 JP2527667 B2 JP 2527667B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- metal plate
- wide
- narrow
- reaction force
- 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]
【産業上の利用分野】本発明は、橋桁等の上部構造物と
橋脚または橋台等の下部構造物との間において、上部構
造物であるコンクリートが打設硬化の後、ある期間に亘
り乾燥に伴って収縮が進行し、収縮限界に達するまでの
間ゴム支承を予備せん断変形させて据付ける方法および
その装置に関するものである。BACKGROUND OF THE INVENTION The present invention relates to a method in which concrete, which is an upper structure, is dried between an upper structure such as a bridge girder and a lower structure such as a bridge pier or abutment for a certain period after being set and hardened. The present invention relates to a method and an apparatus for preliminarily shearing and deforming a rubber bearing until shrinkage reaches a shrinkage limit.
【０００２】[0002]
【従来の技術】従来、センターホールジャッキおよび
牽引螺杆を使用して、上部構造物と下部構造物との間に
ゴム支承を予備せん断変形させて据付ける方式として
は、特開平３−２４０７号公報によって公表されている
方式が知られている。この方式の場合は、金属製ベース
プレートにおける上部構造物伸縮方向の端部に、上部構
造物巾方向に延長すると共に上向きに突出する金属製係
止部材を一体に設け、その係止部材に透孔に挿通した牽
引螺杆の一端部を、ベースプレートに載置されたゴム支
承における下部金属板の雌ねじ孔に螺合し、前記牽引螺
杆に嵌込んだ環状スペーサーの一端面を、前記係止部材
の側面に係合し、牽引螺杆に嵌込んだセンターホールジ
ャッキにおけるシリンダーの基端面を環状スペーサーの
他端面に係合し、牽引螺杆の他端側に螺合した雌ねじ部
材を、センターホールジャッキにおける中空ピストン杆
の端部に係合し、前記ゴム支承の上部に施工されたコン
クリート製上部構造物のコンクリートが硬化したのち、
センターホールジャッキにより、牽引螺杆を介してゴム
支承における下部金属板を上部構造物収縮方向に移動し
て、ゴム支承におけるゴム層を予備せん断変形させ、次
にセンターホールジャッキと牽引螺杆と環状スペーサー
とを撤去している。また従来、特開平２−２６６００
８号公報により公表されている支承方式および特開平
３−７９４８１号公報により公表されている支承方式も
知られている。2. Description of the Related Art Conventionally, Japanese Patent Laid-Open No. 3-2407 discloses a method of preliminarily shearing and installing a rubber bearing between an upper structure and a lower structure by using a center hole jack and a towing rod. The method published by is known. In the case of this method, a metal locking member that extends in the width direction of the upper structure and protrudes upward is integrally provided at the end of the metal base plate in the extension and contraction direction of the upper structure, and the through hole is formed in the locking member. One end of the pulling rod inserted into the base plate is screwed into the female screw hole of the lower metal plate of the rubber bearing placed on the base plate, and one end face of the annular spacer fitted in the pulling rod is attached to the side face of the locking member. To the hollow piston of the center hole jack, the base end surface of the cylinder of the center hole jack fitted in the pulling rod is engaged with the other end surface of the annular spacer, and the female screw member is screwed to the other end of the pulling rod. After the concrete of the concrete superstructure which is engaged with the end of the rod and is constructed on the upper part of the rubber bearing is hardened,
The center hole jack moves the lower metal plate of the rubber bearing in the direction of contraction of the upper structure through the towing rod to pre-shear and deform the rubber layer of the rubber bearing, and then the center hole jack, the towing rod and the annular spacer. Have been removed. Further, in the past, JP-A-2-26600
The bearing system disclosed in Japanese Patent No. 8 and the bearing system disclosed in Japanese Patent Laid-Open No. 3-79481 are also known.
【０００３】[0003]
【発明が解決しようとする課題】前記の従来のゴム支
承の予備せん断変形据付方式の場合は、係止部材がベー
スプレートから上方に大きく突出するので、係止部材付
きベースプレートの重量が大きくなると共に製作費も高
くなり、かつ係止部材の上方突出量が大きいので外観が
悪いという欠点がある。また前記の従来の支承方式の
場合は、上部の両側に嵌合用外向きフランジを有する上
部金属板を、橋桁側に固定される取付部材内の溝に摺動
自在に嵌設しているので、取付部材および上部金属板が
大型（大重量）になると共に、高精度に加工する必要が
あり、さらに複数の雄ねじ部材が常設部品として使用さ
れており、ねじ部材が縮み所期の効果が奏されないおそ
れがありさらに装置全体が著しくコスト高になるという
欠点がある。さらに前記の従来の支承方式の場合は、
ベースプレートにおけるストッパと下部金属板との間
に、ジャッキを配置するための凹部を設けたり、あるい
は、下部金属板に特殊な形状の係合用切欠部を設けると
共に特殊な形状の牽引部材を使用しているので、ベース
プレートまたは下部金属板が大型になると共に加工が煩
雑になり、そのためコスト高になるという欠点があり、
また固定滑り板の摺動面（上面）に、橋桁等の上部構造
物を築造する時等に塵等の異物が堆積し、下部金属板を
移動させて、ゴム支承を予備せん断変形させるときに、
前記異物を排除しなければならないという欠点がある。
本発明は、前記の課題を解決したゴム支承の予備せん断
変形据付方法および予備せん断変形据付装置を提供する
ことを目的とする。In the case of the above-mentioned conventional pre-shear deformation installation method for rubber bearings, since the locking member largely protrudes upward from the base plate, the weight of the locking member-equipped base plate increases and the manufacturing is performed. The cost is high, and the amount of upward protrusion of the locking member is large, resulting in a poor appearance. Further, in the case of the above-mentioned conventional bearing system, since the upper metal plate having outward fitting flanges on both sides of the upper part is slidably fitted in the groove in the mounting member fixed to the bridge girder side, The mounting member and the upper metal plate are large (heavy weight) and must be machined with high precision. Furthermore, multiple male screw members are used as permanent parts, and the screw members shrink and the desired effect is not achieved. However, there is a drawback that the entire apparatus becomes extremely expensive. Furthermore, in the case of the above conventional bearing system,
Between the stopper on the base plate and the lower metal plate, a recess for arranging the jack is provided, or a notch for engagement of a special shape is provided on the lower metal plate and a pulling member of a special shape is used. As a result, the base plate or the lower metal plate becomes large and the processing becomes complicated, resulting in a high cost.
In addition, when foreign materials such as dust accumulate on the sliding surface (upper surface) of the fixed sliding plate when building an upper structure such as a bridge girder, and the lower metal plate is moved to preliminarily shear deform the rubber bearing. ,
The disadvantage is that the foreign matter must be eliminated.
It is an object of the present invention to provide a pre-shear deformation installation method and a pre-shear deformation installation device for a rubber bearing that solves the above problems.
【０００４】[0004]
【課題を解決するための手段】前述の問題を有利に解決
するために、本発明に係るゴム支承の予備せん断変形据
付方法においては、下部構造物１の上部に固定される金
属ベースプレート２の上面に、下部金属板３および上部
金属板４を備えているゴム支承５における下部金属板３
を載置して、この前記下部金属板３を前記金属製ベース
プレート２に係止し、前記ゴム支承５の上面に摺動自在
に載置されているソールプレート６の両端で、かつ上部
構造物７であるコンクリートの収縮に対応して予備せん
断変形方向及び、変形解除方向に位置する前記ソールプ
レート６の両端に設けられる反力支承壁８，９と上部金
属板４との間に形成される大小の間隙に、それぞれ広巾
のスペーサ１３と狭巾のスペーサ１２とを装着して、各
広狭の各スペーサ１３，１２をボルト１４でソールプレ
ート６に固定すると共に、各反力支承壁８，９に螺合し
たボルト１０，２０の先端を上部金属板４の端面に当接
し、前記ソールプレート６の上部に上部構造物７である
コンクリートを打設し、コンクリートが硬化した後、前
記広巾と狭巾の各間隙から広巾と狭巾の各スペーサ１３
を取外したうえ、前記狭巾のスペーサ１３を反対側の広
巾の間隙に装着してソールプレート６に固定し、つぎに
狭巾間隙側の反力支承壁８に螺合したボルト１０を螺進
し、その先端で上部金属板４を押して狭巾間隙を拡げて
広巾間隙とし、ここに前記広巾のスペーサ１３を装着し
てソールプレート６に固定し、さらに、左右の各反力支
承壁８，９からボルト１０，２０を螺脱することを特徴
とする。また、本発明に係るゴム支承の予備せん断変形
据付装置においては、下部構造物１の上部に固定される
金属ベースプレート２の上面に、下部金属板３および上
部金属板４を備えているゴム支承５における前記下部金
属板３を載置して、この下部金属板３を前記金属製ベー
スプレート２に係止し、前記ゴム支承５の上面に摺動自
在に載置されているソールプレート６の両端で、かつ上
部構造物７であるコンクリートの収縮に対応して予備せ
ん断変形方向及び、変形解除方向に位置するソールプレ
ート６の両端に反力支承壁８，９を設け、かつ反力支承
壁８，９と上部金属板４の両端との間に、当該ソールプ
レート６の摺動により広，狭に変化する間隙を形成する
と共に、この広，狭に変化した各間隙に装着したうえ、
ボルト１０，２０によりソールプレート６に着脱自在に
固定できる広巾スペーサ１２と狭巾スペーサ１３とを設
け、かつ先端で上部金属板４の両端面を押圧するボルト
１０，２０を左右の反力支承壁８，９に螺合した構成を
特徴とする。In order to advantageously solve the above-mentioned problems, in the pre-shear deformation installation method of the rubber bearing according to the present invention, the upper surface of the metal base plate 2 fixed to the upper portion of the lower structure 1 is installed. The lower metal plate 3 in the rubber bearing 5 including the lower metal plate 3 and the upper metal plate 4.
The lower metal plate 3 is locked to the metal base plate 2 at both ends of the sole plate 6 slidably mounted on the upper surface of the rubber bearing 5 and the upper structure. Corresponding to contraction of concrete, which is 7, is formed between the upper metal plate 4 and the reaction force bearing walls 8 and 9 provided at both ends of the sole plate 6 located in the preliminary shear deformation direction and the deformation release direction. A wide spacer 13 and a narrow spacer 12 are mounted in the large and small gaps, respectively, to fix the wide and narrow spacers 13 and 12 to the sole plate 6 with bolts 14 and to respectively form the reaction force bearing walls 8 and 9. The tips of the bolts 10 and 20 screwed into the abutment are brought into contact with the end surface of the upper metal plate 4, concrete which is the upper structure 7 is placed on the upper portion of the sole plate 6, and after the concrete is hardened, the wide width and the narrow width are reduced. Each of the width Each of gap of Hirohaba and Semahaba spacer 13
Then, the narrow spacer 13 is attached to the wide gap on the opposite side and fixed to the sole plate 6, and then the bolt 10 screwed into the reaction bearing wall 8 on the narrow gap side is screwed. Then, the upper metal plate 4 is pushed at its tip to widen the narrow gap to make a wide gap, and the wide spacer 13 is attached to the space to fix it to the sole plate 6, and further, the left and right reaction force bearing walls 8, The bolts 10 and 20 are unscrewed from the screw 9. Further, in the rubber bearing preliminary shear deformation installation device according to the present invention, the rubber bearing 5 is provided with the lower metal plate 3 and the upper metal plate 4 on the upper surface of the metal base plate 2 fixed to the upper portion of the lower structure 1. The lower metal plate 3 is placed, the lower metal plate 3 is locked to the metal base plate 2, and both ends of the sole plate 6 slidably placed on the upper surface of the rubber bearing 5 are attached. In addition, reaction force bearing walls 8 and 9 are provided at both ends of the sole plate 6 located in the pre-shear deformation direction and the deformation canceling direction in response to contraction of the concrete which is the upper structure 7, and the reaction force bearing walls 8 and 9. A gap that widens and narrows due to the sliding of the sole plate 6 is formed between 9 and both ends of the upper metal plate 4, and the gaps are mounted in the wide and narrow gaps.
A wide spacer 12 and a narrow spacer 13 which can be detachably fixed to the sole plate 6 by the bolts 10 and 20 are provided, and the bolts 10 and 20 for pressing the both end surfaces of the upper metal plate 4 at the tips are provided on the left and right reaction force bearing walls. It is characterized by a configuration in which it is screwed into 8 and 9.
【０００５】[0005]
【実施例】次に本発明の実施例を図によって詳細に説明
する。まず図１ないし図７に示すように、下部に複数の
アンカー部材１５を固定すると共に、中央に４角形の係
止孔１６を備えている金属製ベースプレート２が、橋台
からなるコンクリート製下部構造物１の上面に載置され
ると共に、前記アンカー部材１５が下部構造物１に埋込
固定される。また、下部金属板３とゴム層１１と上部金
属板４とを一体に積層して形成したゴム支承５における
前記下部金属板３がベースプレート２の上面に載置さ
れ、かつ前記下部金属板３の中央下部に一体に設けられ
た４角形断面の係止突起１７は、前記係止孔１６に嵌入
され、前記上部金属板４の上面に、四フッ化エチレン等
の合成樹脂からなる下部滑り支承板１８が接着剤等によ
り固着されている。Next, an embodiment of the present invention will be described in detail with reference to the drawings. First, as shown in FIGS. 1 to 7, a concrete lower structure in which a plurality of anchor members 15 are fixed to the lower portion and a metal base plate 2 having a square locking hole 16 in the center is a bridge abutment. The anchor member 15 is mounted on the upper surface of the lower structure 1 and embedded and fixed in the lower structure 1. Further, the lower metal plate 3 in the rubber bearing 5 formed by integrally laminating the lower metal plate 3, the rubber layer 11, and the upper metal plate 4 is placed on the upper surface of the base plate 2, and the lower metal plate 3 A locking projection 17 having a square cross section, which is integrally provided in the lower central portion, is fitted into the locking hole 16, and a lower slide bearing plate made of a synthetic resin such as tetrafluoroethylene is provided on the upper surface of the upper metal plate 4. 18 is fixed by an adhesive or the like.
【０００６】鋼製ソールプレート６の上部に複数のアン
カー部材１９が固定され、前記ソールプレート６におけ
る上部構造物伸縮方向（前後方向）の両端部に、下向き
に突出する複数の鋼製反力支承壁８，９が、上部構造物
巾方向（左右方向）に間隔をおいて一体に設けられ、各
反力支承壁８，９に、上部構造物長手方向（前後方向）
に延長する雌ねじ孔が設けられ、一方の反力支承壁８の
雌ねじ孔にボルト１０が螺合され、他方の反力支承壁９
の雌ねじ孔にボルト２０が螺合されている。A plurality of anchor members 19 are fixed to the upper portion of the steel sole plate 6, and a plurality of steel reaction force bearings projecting downward are provided at both ends of the sole plate 6 in the extension and contraction direction (front-back direction) of the upper structure. The walls 8 and 9 are integrally provided at intervals in the width direction (horizontal direction) of the upper structure, and the reaction force bearing walls 8 and 9 are provided in the longitudinal direction (front-back direction) of the upper structure.
Is provided with a female screw hole extending therethrough, a bolt 10 is screwed into the female screw hole of one reaction force bearing wall 8, and the other reaction force bearing wall 9 is
The bolt 20 is screwed into the female screw hole.
【０００７】前記ソールプレート６の下面の左右両側
に、前後方向に延長する鋼製支承突条２１が一体に設け
られ、かつ前記ソールプレート６の下面に、ステンレス
鋼板からなる上部滑り支承板２２が接着剤等により固着
され、その上部滑り支承板２２は、ゴム支承５の上部の
下部滑り支承板１８に前後摺動自在に載置され、一方の
各反力支承壁８と前記上部金属板４との間に、狭巾のス
ペーサ１２が介在され、他方の各反力支承壁９と前記上
部金属板４との間に、広巾のスペーサ１３が介在され、
各スペーサ１２，１３はソールプレート６に対しボルト
１４により着脱自在に固定されている。On the left and right sides of the lower surface of the sole plate 6, steel bearing projections 21 extending in the front-rear direction are integrally provided, and on the lower surface of the sole plate 6, an upper slide bearing plate 22 made of a stainless steel plate is provided. The upper sliding bearing plate 22 is fixed by an adhesive or the like, and the upper sliding bearing plate 22 is mounted on the lower sliding bearing plate 18 on the upper portion of the rubber bearing 5 so as to be slidable back and forth, and each reaction force bearing wall 8 on one side and the upper metal plate 4 A narrow spacer 12 is interposed between the upper and lower metal plates 4, and a wide spacer 13 is interposed between the other reaction force bearing wall 9 and the upper metal plate 4.
The spacers 12 and 13 are detachably fixed to the sole plate 6 with bolts 14.
【０００８】次に、図８に示すように、ソールプレート
６の上部に、上部橋梁等の上部構造物７を構成するコン
クリートが打設される。また、このとき反力支承壁９と
上部金属板４との間に広巾のスペーサ１３が装着されて
おり、他の反力支承壁８と上部金属板４との間に狭巾の
スペーサ１２が装着されている。このとき、各ボルト１
０と２０の先端は、それぞれ上部金属板４の両端面に当
接させている。Next, as shown in FIG. 8, concrete constituting the upper structure 7 such as an upper bridge is placed on the upper portion of the sole plate 6. At this time, a wide spacer 13 is mounted between the reaction force bearing wall 9 and the upper metal plate 4, and a narrow spacer 12 is provided between the other reaction force bearing wall 8 and the upper metal plate 4. It is installed. At this time, each bolt 1
The tips of 0 and 20 are in contact with both end surfaces of the upper metal plate 4, respectively.
【０００９】前記上部構造物７のコンクリートを一定期
間養生して確化させた後、図９に示すように反力支承壁
９と上部金属板４との間から広巾のスペーサ１３を取外
すと共に、反力支承壁８と上部金属板４との間から狭巾
のスペーサ１２を取外し、つぎにこの狭巾のスペーサ１
２を反対側の反力支承壁９と上部金属板４の間に配置
し、かつこの反力支承壁９に接触された状態でボルト１
４によりソールプレート６に固定し、かつ反力支承壁９
に螺合したボルト２０を取外す。After curing the concrete of the upper structure 7 for a certain period of time to make it concrete, the wide spacer 13 is removed from between the reaction force bearing wall 9 and the upper metal plate 4 as shown in FIG. The narrow spacer 12 is removed from between the force bearing wall 8 and the upper metal plate 4, and then the narrow spacer 1
2 is arranged between the reaction force bearing wall 9 and the upper metal plate 4 on the opposite side, and the bolt 1 is in contact with the reaction force bearing wall 9
Fixed to the sole plate 6 by means of 4 and the reaction force bearing wall 9
Remove the bolt 20 that is screwed into.
【００１０】次に、図１０に示すように反力支承壁９に
螺合したボルト１０を回動して、このボルト１０により
ゴム支承５の上部金属板４を上部構造物収縮方向と反対
方向、つまり他の反力支承壁９側に押圧移動して、上部
金属板４の他端面を狭巾のスペーサ１２に突き当て、ゴ
ム支承５のゴム層１１を予備せん断変形させる。Next, as shown in FIG. 10, the bolt 10 screwed into the reaction force bearing wall 9 is rotated to move the upper metal plate 4 of the rubber bearing 5 in the direction opposite to the contracting direction of the upper structure. That is, the other reaction force bearing wall 9 is pushed and moved, the other end surface of the upper metal plate 4 is abutted against the narrow spacer 12, and the rubber layer 11 of the rubber bearing 5 is pre-shear-deformed.
【００１１】次に、図１１および図１２に示すように、
ボルト１０の螺進により形成された反力支承壁８と上部
金属板４との間隙に広巾スペーサ１３を介在させ、この
広巾スペーサ１３をソールプレート６にボルト１４によ
り固定する。図１３ないし図１５は本発明を実施する場
合に使用できる調節自在にスペーサ１２，１３の例を示
すものであって、スペーサ本体２３における反力支承壁
８，９の前後方向の面に対向する側面に、板厚の異なる
複数枚の調節板２４Ａ，２４Ｂ，２４Ｃが重合されて皿
頭ビス２５により固定され、かつスペーサ本体２３に、
前後方向に延長する複数の長孔２６と、その長孔２６を
囲むボルト頭部収容用凹部２７とが設けられ、前記調節
板２４Ａ〜２４Ｃを着脱することにより、スペーサ１
２，１３の巾を調節することができる。Next, as shown in FIG. 11 and FIG.
A wide spacer 13 is interposed in the gap between the reaction force bearing wall 8 formed by the screwing of the bolt 10 and the upper metal plate 4, and the wide spacer 13 is fixed to the sole plate 6 by the bolt 14. 13 to 15 show examples of adjustable spacers 12 and 13 that can be used when the present invention is carried out, and are opposed to the front-rear surface of the reaction force bearing walls 8 and 9 in the spacer body 23. On the side surface, a plurality of adjusting plates 24A, 24B, 24C having different plate thicknesses are superposed and fixed by a countersunk screw 25, and to the spacer body 23,
A plurality of elongated holes 26 extending in the front-rear direction and a bolt head accommodating concave portion 27 surrounding the elongated holes 26 are provided, and the spacers 1 are attached by attaching and detaching the adjusting plates 24A to 24C.
The width of 2, 13 can be adjusted.
【００１２】本発明を実施する場合、スペーサ１２，１
３としては、巾を調節できない多種類のスペーサを用意
し、施工状況に合わせて任意のスペーサを使用してもよ
い。また、本発明においては、上部構造物７であるコン
クリートが硬化した後、このコンクリートは約１ケ月前
後の間は乾燥に伴って徐々に収縮するので、この収縮限
界に達した時点で、ボルト１４を緩め、広，狭の間隙か
ら広巾と狭巾の各スペーサ１２，１３を取外し、かつ、
反力支承壁８，９からボルト１０，２０を螺脱する。When practicing the present invention, the spacers 12, 1
For 3, various kinds of spacers whose widths cannot be adjusted may be prepared, and any spacer may be used depending on the construction situation. Further, in the present invention, after the concrete which is the upper structure 7 hardens, this concrete gradually shrinks as it dries for about one month, so when the shrinkage limit is reached, the bolt 14 Loosen, remove the wide and narrow spacers 12 and 13 from the wide and narrow gaps, and
The bolts 10 and 20 are unscrewed from the reaction force bearing walls 8 and 9.
【００１３】[0013]
【発明の効果】本発明によれば、下部構造物１の上部に
固定される金属ベースプレート２の上面に、下部金属板
３および上部金属板４を備えているゴム支承５における
下部金属板３を載置して、この前記下部金属板３を前記
金属製ベースプレート２に係止し、前記ゴム支承５の上
面に摺動自在に載置されているソールプレート６の両端
で、かつ上部構造物７であるコンクリートの収縮に対応
して予備せん断変形方向及び、変形解除方向に位置する
前記ソールプレート６の両端に設けられる反力支承壁
８，９と、上部金属板４との間に形成される大小の間隙
にそれぞれ広巾のスペーサ１３と狭巾のスペーサ１２と
を装着して、各広狭の各スペーサ１３，１２をボルト１
４でソールプレート６に固定すると共に、各反力支承壁
８，９に螺合したボルト１０，２０の先端を上部金属板
４の端面に当接し、前記ソールプレート６の上部に上部
構造物７であるコンクリートを打設し、コンクリートが
硬化した後、前記広巾と狭巾の各間隙から広巾と狭巾の
各スペーサ１３を取外したうえ、前記狭巾のスペーサ１
３を反対側の広巾の間隙に装着してソールプレート６に
固定し、つぎに狭巾間隙側の反力支承壁８に螺合したボ
ルト１０を螺進し、その先端で上部金属板４を押して狭
巾間隙を拡げて広巾間隙とし、ここに前記広巾のスペー
サ１３を装着してソールプレート６に固定するもので、
すなわち、ゴム支承５の予備せん断変形前における上部
金属板４と左右の反力支承壁８，９との間に予め設計さ
れた寸法に形成された広狭の間隙に配置してある広巾と
狭巾のスペーサ１２，１３を、前記ゴム支承５の予備せ
ん断変形させた後において、左右側で逆となった前記広
狭の間隙に、入れ変えて装着し、反力支承壁８，９とゴ
ム支承５の上部金属板４との間にスペーサ１２，１３を
介在固定して、ゴム支承５の上部金属板４を、ソールプ
レート６に対し上部構造物伸縮方向に移動しないように
固定するので、前記ゴム支承５の予備せん断変形量を強
固な手段を用いて、容易かつ正確に設定でき、かつ、予
備せん断変形後におけるゴム支承５の左右端面の固定を
確実に行なうことができる。さらに、前記構成により予
備せん断変形据付装置の高さを低くして軽量化すると共
に製造コストを安くすることができ、またさらに、ゴム
支承の予備せん断変形据付装置の外観を呈することがで
き、しかもソールプレート６側の摺動面が下向きになっ
ているので、その摺動面に塵等の異物が堆積することが
なく、かつ予備せん断変形据付装置の構造が簡単である
と共に小型にできる等の効果が得られる。According to the present invention, the lower metal plate 3 in the rubber bearing 5 having the lower metal plate 3 and the upper metal plate 4 is provided on the upper surface of the metal base plate 2 fixed to the upper portion of the lower structure 1. The lower metal plate 3 is placed on the base plate 2 made of metal, the sole plate 6 is slidably placed on the upper surface of the rubber bearing 5, and the upper structure 7 Is formed between the upper metal plate 4 and the reaction force bearing walls 8 and 9 provided at both ends of the sole plate 6 located in the pre-shear deformation direction and the deformation release direction corresponding to the contraction of the concrete. A wide spacer 13 and a narrow spacer 12 are mounted in the large and small gaps, and the wide and narrow spacers 13 and 12 are attached to the bolt 1
4 is fixed to the sole plate 6, and the tips of the bolts 10 and 20 screwed into the reaction force bearing walls 8 and 9 are brought into contact with the end surface of the upper metal plate 4, and the upper structure 7 is attached to the upper portion of the sole plate 6. After the concrete is poured and the concrete is hardened, the wide and narrow spacers 13 are removed from the wide and narrow gaps, and the narrow spacer 1
3 is attached to the wide gap on the opposite side and fixed to the sole plate 6, and then the bolt 10 screwed into the reaction force bearing wall 8 on the narrow gap side is screwed, and the upper metal plate 4 is attached at its tip. By pushing to widen the narrow gap to form a wide gap, the wide spacer 13 is attached to the gap and fixed to the sole plate 6,
That is, before and after the pre-shear deformation of the rubber bearing 5, the wide width and the narrow width which are arranged in the wide and narrow gaps formed in the predesigned size between the upper metal plate 4 and the left and right reaction force bearing walls 8 and 9. After preliminarily shearing and deforming the rubber bearings 5, the spacers 12 and 13 are replaced and mounted in the wide and narrow gaps that are reversed on the left and right sides, and the reaction force bearing walls 8 and 9 and the rubber bearings 5 are mounted. Since the spacers 12 and 13 are fixedly interposed between the upper metal plate 4 and the upper metal plate 4, the upper metal plate 4 of the rubber bearing 5 is fixed so as not to move with respect to the sole plate 6 in the expansion and contraction direction of the upper structure. The amount of preliminary shear deformation of the bearing 5 can be set easily and accurately by using a strong means, and the left and right end faces of the rubber bearing 5 can be reliably fixed after the preliminary shear deformation. Further, with the above configuration, the height of the preliminary shear deformation installation device can be reduced to reduce the weight and the manufacturing cost can be reduced, and further, the appearance of the preliminary shear deformation installation device of the rubber bearing can be exhibited, and Since the sliding surface on the side of the sole plate 6 faces downward, foreign matter such as dust does not accumulate on the sliding surface, and the structure of the preliminary shear deformation installation device is simple and can be downsized. The effect is obtained.
【図１】上部構造物の施工する前のゴム支承の予備せん
断変形据付装置を示す縦断側面図である。FIG. 1 is a vertical cross-sectional side view showing a preliminary shear deformation installation device for a rubber bearing before construction of an upper structure.
【図２】図１に示すゴム支承の予備せん断変形据付装置
の平面図である。FIG. 2 is a plan view of the pre-shear deformation installation device for the rubber bearing shown in FIG.
【図３】図１のＡ−Ａ線断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 1;
【図４】図２のＢ−Ｂ線断面図である。FIG. 4 is a sectional view taken along line BB in FIG.
【図５】上部構造物を施工する前のゴム支承の予備せん
断変形据付装置を示す側面図である。FIG. 5 is a side view showing a pre-shear deformation installation device for a rubber bearing before constructing an upper structure.
【図６】図１の一部を拡大して示す縦断側面図である。FIG. 6 is a vertical sectional side view showing a part of FIG. 1 in an enlarged manner.
【図７】図４の一部を拡大して示す縦断側面図である。FIG. 7 is a vertical sectional side view showing a part of FIG. 4 in an enlarged manner.
【図８】ソールプレートの上に上部構造物を施工した状
態を示す縦断側面図である。FIG. 8 is a vertical cross-sectional side view showing a state in which an upper structure is constructed on a sole plate.
【図９】ゴム支承のせん断変形準備を完了した状態を示
す縦断側面図である。FIG. 9 is a vertical cross-sectional side view showing a state in which preparation for shear deformation of a rubber bearing is completed.
【図１０】ゴム支承をせん断変形させた状態を示す縦断
側面図である。FIG. 10 is a vertical sectional side view showing a state in which the rubber bearing is sheared and deformed.
【図１１】ゴム支承をせん断変形させて、ゴム支承の上
部金属板をソールプレートに対し移動しないように固定
した状態を示す縦断側面図である。FIG. 11 is a vertical cross-sectional side view showing a state in which the rubber bearing is shear-deformed and the upper metal plate of the rubber bearing is fixed so as not to move with respect to the sole plate.
【図１２】図１１のＣ−Ｃ線断面図である。12 is a cross-sectional view taken along the line CC of FIG.
【図１３】調節自在なスペーサを示す底面図である。FIG. 13 is a bottom view of the adjustable spacer.
【図１４】調節自在なスペーサを示す側面図である。FIG. 14 is a side view showing an adjustable spacer.
【図１５】図１３のＤ−Ｄ線拡大断面図である。FIG. 15 is an enlarged sectional view taken along line DD of FIG.
１ 下部構造物 ２ ベースプレート ３ 下部金属板 ４ 上部金属板 ５ ゴム支承 ６ ソールプレート ７ 上部構造物 ８ 反力支承壁 ９ 反力支承壁 １０ ボルト １１ ゴム層 １２ スペーサ １３ スペーサ １４ ボルト １５ アンカー部材 １６ 係止孔 １７ 係止突起 １８ 下部滑り支承板 １９ アンカー部材 ２０ ボルト ２１ 支承突条 ２２ 上部滑り支承板 ２３ スペーサ本体 ２４ 調節板 ２５ 皿頭ビス ２６ 長孔 ２７ ボルト頭部収容用凹部 1 Lower Structure 2 Base Plate 3 Lower Metal Plate 4 Upper Metal Plate 5 Rubber Bearing 6 Sole Plate 7 Upper Structure 8 Reaction Force Bearing Wall 9 Reaction Force Bearing Wall 10 Bolt 11 Rubber Layer 12 Spacer 13 Spacer 14 Bolt 15 Anchor Member 16 Engagement Stop hole 17 Locking protrusion 18 Lower sliding bearing plate 19 Anchor member 20 Bolt 21 Bearing protruding ridge 22 Upper sliding bearing plate 23 Spacer body 24 Adjusting plate 25 Countersunk screw 26 Long hole 27 Bolt head accommodating recess
Claims (2)
ースプレート２の上面に、下部金属板３および上部金属
板４を備えているゴム支承５における下部金属板３を載
置して、この前記下部金属板３を前記金属製ベースプレ
ート２に係止し、前記ゴム支承５の上面に摺動自在に載
置されているソールプレート６の両端で、かつ上部構造
物７であるコンクリートの収縮に対応して予備せん断変
形方向及び、変形解除方向に位置する前記ソールプレー
ト６の両端に設けられる反力支承壁８，９と上部金属板
４との間に形成される大小の間隙に、それぞれ広巾のス
ペーサ１３と狭巾のスペーサ１２とを装着して、広狭の
各スペーサ１３，１２をボルト１４でソールプレート６
に固定すると共に、各反力支承壁８，９に螺合したボル
ト１０，２０の先端を上部金属板４の端面に当接し、前
記ソールプレート６の上部に上部構造物７であるコンク
リートを打設し、コンクリートが硬化した後、前記広巾
と狭巾の各間隙から広巾と狭巾の各スペーサ１３を取外
したうえ、前記狭巾のスペーサ１３を反対側の広巾の間
隙に装着してソールプレート６に固定し、つぎに狭巾間
隙側の反力支承壁８に螺合したボルト１０を螺進し、そ
の先端で上部金属板４を押して狭巾間隙を拡げて広巾間
隙とし、ここに前記広巾のスペーサ１３を装着してソー
ルプレート６に固定し、さらに、左右の各反力支承壁
８，９からボルト１０，２０を螺脱することを特徴とす
るゴム支承の予備せん断変形据付方法。1. A lower metal plate (3) in a rubber bearing (5) having a lower metal plate (3) and an upper metal plate (4) is placed on the upper surface of a metal base plate (2) fixed to the upper part of the lower structure (1), The lower metal plate 3 is locked to the metal base plate 2, and at the both ends of the sole plate 6 slidably mounted on the upper surface of the rubber bearing 5, and when the upper structure 7 contracts concrete. Correspondingly, the large and small gaps formed between the reaction force bearing walls 8 and 9 provided at both ends of the sole plate 6 located in the pre-shear deformation direction and the deformation release direction and the upper metal plate 4 respectively have wide widths. The spacer 13 and the narrow spacer 12 are mounted, and the wide and narrow spacers 13 and 12 are attached to the sole plate 6 with the bolts 14.
The upper end of the upper metal plate 4 is abutted with the ends of the bolts 10 and 20 screwed to the reaction force bearing walls 8 and 9, and the concrete, which is the upper structure 7, is struck on the upper portion of the sole plate 6. After the concrete is hardened, the wide and narrow spacers 13 are removed from the wide and narrow gaps, and the narrow spacers 13 are mounted in the wide gaps on the opposite side of the sole plate. 6 and then, the bolt 10 screwed into the reaction force bearing wall 8 on the narrow gap side is screwed, and the upper metal plate 4 is pushed by the tip of the bolt 10 to expand the narrow gap to form a wide gap. A pre-shear deformation installation method for a rubber bearing, characterized in that a wide spacer 13 is attached and fixed to the sole plate 6, and the bolts 10 and 20 are unscrewed from the left and right reaction force bearing walls 8 and 9.
ースプレート２の上面に、下部金属板３および上部金属
板４を備えているゴム支承５における前記下部金属板３
を載置して、この下部金属板３を前記金属製ベースプレ
ート２に係止し、前記ゴム支承５の上面に摺動自在に載
置されているソールプレート６の両端で、かつ上部構造
物７であるコンクリートの収縮に対応して予備せん断変
形方向及び、変形解除方向に位置するソールプレート６
の両端に反力支承壁８，９を設け、かつ反力支承壁８，
９と上部金属板４の両端との間に、当該ソールプレート
６の摺動により広，狭に変化する間隙を形成すると共
に、この広，狭に変化した各間隙に装着したうえ、ボル
ト１０，２０によりソールプレート６に着脱自在に固定
できる広巾スペーサ１２と狭巾スペーサ１３とを設け、
かつ先端で上部金属板４の両端面を押圧するボルト１
０，２０を左右の反力支承壁８，９に螺合した構成を特
徴とする予備せん断変形据付装置。2. The lower metal plate 3 in a rubber bearing 5 having a lower metal plate 3 and an upper metal plate 4 on the upper surface of a metal base plate 2 fixed to the upper part of the lower structure 1.
Is mounted on the base plate 2 made of metal, the lower metal plate 3 is locked to the metal base plate 2, and both ends of the sole plate 6 slidably mounted on the upper surface of the rubber bearing 5 and the upper structure 7 Corresponding to the contraction of the concrete, the sole plate 6 located in the pre-shear deformation direction and the deformation release direction
The reaction force bearing walls 8 and 9 at both ends of the
A gap that widens or narrows due to the sliding of the sole plate 6 is formed between 9 and both ends of the upper metal plate 4, and the bolts 10 are attached to the wide and narrow gaps. A wide spacer 12 and a narrow spacer 13 which can be detachably fixed to the sole plate 6 by 20 are provided,
And a bolt 1 that presses both end surfaces of the upper metal plate 4 with the tip
A preliminary shearing deformation installation device characterized in that 0 and 20 are screwed into the left and right reaction force bearing walls 8 and 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4097458A JP2527667B2 (en) | 1992-03-25 | 1992-03-25 | Preliminary shear deformation installation method and preliminary shear deformation installation device for rubber bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4097458A JP2527667B2 (en) | 1992-03-25 | 1992-03-25 | Preliminary shear deformation installation method and preliminary shear deformation installation device for rubber bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05272115A JPH05272115A (en) | 1993-10-19 |
| JP2527667B2 true JP2527667B2 (en) | 1996-08-28 |
Family
ID=14192867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4097458A Expired - Fee Related JP2527667B2 (en) | 1992-03-25 | 1992-03-25 | Preliminary shear deformation installation method and preliminary shear deformation installation device for rubber bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2527667B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4661573B2 (en) * | 2005-12-12 | 2011-03-30 | オイレス工業株式会社 | Installation method of elastic bearings for structures |
| JP4705004B2 (en) * | 2006-11-17 | 2011-06-22 | 株式会社ブリヂストン | Strain adjustment jig and strain adjustment method |
| JP6990616B2 (en) * | 2018-03-30 | 2022-01-12 | 住友理工株式会社 | Fixing structure and fixing method of sliding bearings, intermediary members for fixing sliding bearings |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02266008A (en) * | 1989-04-06 | 1990-10-30 | Bridgestone Corp | Bridge girder bearing apparatus |
| JPH0379481A (en) * | 1989-08-23 | 1991-04-04 | Suzuki Motor Corp | Container device of motorcycle |
-
1992
- 1992-03-25 JP JP4097458A patent/JP2527667B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05272115A (en) | 1993-10-19 |
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