JP6990616B2 - Fixing structure and fixing method of sliding bearings, intermediary members for fixing sliding bearings - Google Patents

Fixing structure and fixing method of sliding bearings, intermediary members for fixing sliding bearings Download PDF

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JP6990616B2
JP6990616B2 JP2018067628A JP2018067628A JP6990616B2 JP 6990616 B2 JP6990616 B2 JP 6990616B2 JP 2018067628 A JP2018067628 A JP 2018067628A JP 2018067628 A JP2018067628 A JP 2018067628A JP 6990616 B2 JP6990616 B2 JP 6990616B2
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吉久 山本
洋輔 柴田
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Sumitomo Riko Co Ltd
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本発明は、橋梁等の上部構造物と橋脚等の下部構造物との間に設けられるスライド式支承体を固定支承とするための固定構造及び固定方法と、スライド式支承体の固定用の介装部材とに関する。 The present invention relates to a fixing structure and a fixing method for making a sliding bearing provided between an upper structure such as a bridge and a lower structure such as a pier a fixed bearing, and a means for fixing the sliding bearing. With respect to the bearing members.

橋梁等の上部構造物を橋脚等の下部構造物上に施工する際、上部構造物と下部構造物との間にゴム支承等の支承体を介在させて固定し、振動や横揺れを吸収させる構造が知られている。多点固定形式の橋梁においては、支承体の下側に設けられる下沓が下部構造物である橋脚に固定された後に、支承体の上側に設けられる上沓が上部構造物である橋桁に固定されることになるが、この際、上部構造物に伸縮が生じるため、一旦支承体に対して上沓(又は下沓)を水平長手方向へスライド可能にしておく仮可動構造が採用される。
このようなスライド式支承体の固定構造に関し、特許文献1には、支承体に設けた上部金属板の上面に下部滑り板を、上部構造物側の金属製支持板(上沓)に上部滑り板をそれぞれ固着して、橋梁の伸縮等に伴い、上部滑り板を下部滑り板の上でスライドさせた後、上部金属板を金属製支持板に固定するプレスライド式橋桁支承方法が開示されている。特にここでは、橋梁のスライドによって金属製支持板に設けたストッパ突条と上部金属板との間に生じた隙間をスペーサによって埋めるようにしている。
また、特許文献2には、支承体の上沓を上部構造物に固定すると共に、下沓を下部構造物側のベースプレート上の滑り部材に載置し、上部構造物の収縮後、下沓とベースプレートとの間の空隙に移動規制用のカラーを介在させて下沓を固定するスライド式橋桁支承体の固定構造が開示されている。
When constructing a superstructure such as a bridge on a substructure such as a pier, a bearing such as a rubber bearing is interposed between the superstructure and the substructure to fix it and absorb vibration and rolling. The structure is known. In a multi-point fixed type bridge, after the lower sill provided on the lower side of the bearing is fixed to the pier which is the lower structure, the upper sill provided on the upper side of the bearing is fixed to the bridge girder which is the upper structure. However, at this time, since the upper structure expands and contracts, a temporary movable structure that temporarily allows the upper pier (or lower pier) to slide in the horizontal longitudinal direction with respect to the bearing is adopted.
Regarding the fixing structure of such a sliding bearing, Patent Document 1 describes an upper sliding plate on the upper surface of the upper metal plate provided on the bearing and an upper sliding plate on a metal support plate (upper bridge) on the upper structure side. A pre-slide type bridge girder bearing method is disclosed in which the plates are fixed to each other, the upper sliding plate is slid on the lower sliding plate due to expansion and contraction of the bridge, and then the upper metal plate is fixed to the metal support plate. There is. In particular, here, the gap created between the stopper ridge provided on the metal support plate by the slide of the bridge and the upper metal plate is filled with a spacer.
Further, in Patent Document 2, the upper shoe of the bearing is fixed to the upper structure, and the lower shoe is placed on the sliding member on the base plate on the lower structure side. A fixing structure of a sliding bridge girder bearing that fixes a lower shoe by interposing a collar for restricting movement in a gap between the base plate and the base plate is disclosed.

特許第2715048号公報Japanese Patent No. 2715048 特許第3860892号公報Japanese Patent No. 3860892

上記スライド式支承体の固定構造においては、上部構造物の伸縮等により生じた支承体との隙間の寸法を測定し、その測定結果に応じてスペーサやカラー等の介装部材を作製して、作製した介装部材を隙間に取り付けて固定支承とする手順となる。よって、寸法測定後に介装部材を設計・作製する日数が余計に必要となって施工期間が長くなってしまう。特に介装部材も支承体の金属部材と同様に防錆処理が必要となるため、さらに時間が掛かることになる。また、介装部材の作製中に生じた新たな寸法変化により、作製した介装部材と現場の隙間との寸法が合わなくなるおそれもある。 In the fixed structure of the slide type bearing, the size of the gap between the bearing and the bearing caused by the expansion and contraction of the superstructure is measured, and an intervening member such as a spacer or a collar is manufactured according to the measurement result. The procedure is to attach the manufactured interposition member to the gap and use it as a fixed bearing. Therefore, it takes an extra number of days to design and manufacture the interposition member after the dimensional measurement, and the construction period becomes long. In particular, the interposition member also needs to be rust-proofed like the metal member of the bearing, so that it takes more time. In addition, due to a new dimensional change that occurs during the production of the intervention member, there is a possibility that the dimensions of the produced intervention member and the gap at the site do not match.

そこで、本発明は、隙間の寸法測定後直ちに介装部材を隙間に合わせてセットでき、施工期間の短縮化に繋がるスライド式支承体の固定構造及び固定方法、スライド式支承体の固定用の介装部材を提供することを目的としたものである。 Therefore, in the present invention, the intervening member can be set according to the gap immediately after measuring the size of the gap, and the fixing structure and fixing method of the sliding bearing, which leads to shortening of the construction period, and the fitting for fixing the sliding bearing. The purpose is to provide a mounting member.

上記目的を達成するために、請求項1に記載の発明は、下部構造物に固定される下沓と、下沓の上側に配置されるゴム体と、ゴム体の上側に配置される中間板と、中間板に対してスライド可能に載置され、上部構造物に固定される上沓と、を含んでなるスライド式支承体の固定構造であって、
下沓と上沓との何れか一方側には、上部構造物の水平長手方向で前後に位置する少なくとも一対の第1係合部が、他方側には、水平長手方向で一対の第1係合部とそれぞれ対峙する少なくとも一対の第2係合部がそれぞれ形成されると共に、第1係合部と第2係合部との間には、水平長手方向で少なくとも2つの隙間が形成されて、
各隙間には、水平長手方向で複数に分割されるスペーサ部を備えた介装部材のスペーサ部が、隙間の大きさに合わせて選択した数でそれぞれ嵌合されることで、下沓と上沓との水平長手方向での相対移動が規制されていることを特徴とする。
請求項2に記載の発明は、請求項1の構成において、介装部材は、下沓側又は上沓側に固定される固定部を有し、スペーサ部は、固定部に連設される基本スペーサと、基本スペーサに別体で積層される少なくとも1つの調整スペーサとに分割されていることを特徴とする。
請求項3に記載の発明は、請求項2の構成において、調整スペーサを複数有し、各調整スペーサは互いに厚みが異なることを特徴とする。
請求項4に記載の発明は、請求項2又は3の構成において、介装部材は、固定部とスペーサ部との間が直角となる平面視L字状であることを特徴とする。
請求項5に記載の発明は、請求項2又は3の構成において、介装部材は、固定部とスペーサ部とが直線状となる平板状であることを特徴とする。
請求項6に記載の発明は、請求項2乃至5の何れかの構成において、調整スペーサは、連結部材を介して基本スペーサへ着脱可能に連結されていることを特徴とする。
請求項7に記載の発明は、請求項2乃至5の何れかの構成において、調整スペーサは、隣接する他の調整スペーサと基本スペーサと固定部との何れかに対して互いに着脱可能に係合していることを特徴とする。
請求項8に記載の発明は、請求項1乃至7の何れかの構成において、介装部材には防錆処理が施されていることを特徴とする。
上記目的を達成するために、請求項9に記載の発明は、下部構造物に固定される下沓と、下沓の上側に配置されるゴム体と、ゴム体の上側に配置される中間板と、中間板に対してスライド可能に載置され、上部構造物に固定される上沓と、を含んでなり、
下沓と上沓との何れか一方側には、上部構造物の水平長手方向で前後に位置する少なくとも一対の第1係合部が、他方側には、水平長手方向で一対の第1係合部とそれぞれ対峙する少なくとも一対の第2係合部がそれぞれ形成されると共に、第1係合部と第2係合部との間には、水平長手方向で少なくとも2つの隙間が形成されるスライド式支承体において、
各隙間にそれぞれ嵌合させて下沓と上沓との水平長手方向での相対移動を規制するために用いられる介装部材であって、
水平長手方向で複数に分割されるスペーサ部を備え、スペーサ部が、隙間の大きさに合わせて選択した数でそれぞれ隙間に嵌合可能であることを特徴とする。
請求項10に記載の発明は、請求項9の構成において、下沓側又は上沓側に固定される固定部を有し、スペーサ部は、固定部に連設される基本スペーサと、基本スペーサに別体で積層される少なくとも1つの調整スペーサとに分割され、固定部とスペーサ部との間が直角となる平面視L字状であることを特徴とする。
請求項11に記載の発明は、請求項9の構成において、下沓側又は上沓側に固定される固定部を有し、スペーサ部は、固定部に連設される基本スペーサと、基本スペーサに別体で積層される少なくとも1つの調整スペーサとに分割され、固定部とスペーサ部とが直線状となる平板状であることを特徴とする。
上記目的を達成するために、請求項12に記載の発明は、スライド式支承体の固定方法であって、下部構造物に固定される下沓と、下沓の上側に配置されるゴム体と、ゴム体の上側に配置される中間板と、中間板に対してスライド可能に載置され、上部構造物に固定される上沓と、を含んでなり、下沓と上沓との何れか一方側には、上部構造物の水平長手方向で前後に位置する少なくとも一対の第1係合部が、他方側には、水平長手方向で一対の第1係合部とそれぞれ対峙する少なくとも一対の第2係合部がそれぞれ形成されると共に、第1係合部と第2係合部との間には、水平長手方向で少なくとも2つの隙間が形成されるスライド式支承体において、
各隙間に、請求項9乃至11の何れかに記載の介装部材のスペーサ部をそれぞれ嵌合させて、下沓と上沓との水平長手方向での相対移動を規制することを特徴とする。
In order to achieve the above object, the invention according to claim 1 has a lower sill fixed to a lower structure, a rubber body arranged on the upper side of the lower sill, and an intermediate plate arranged on the upper side of the rubber body. It is a fixed structure of a sliding bearing that includes a rubber shoe that is slidably placed on the intermediate plate and fixed to the superstructure.
On either one side of the lower sill and the upper sill, at least a pair of first engaging portions located in the front-rear direction in the horizontal longitudinal direction of the superstructure, and on the other side, a pair of first engagement portions in the horizontal longitudinal direction. At least a pair of second engaging portions facing each other are formed, and at least two gaps are formed between the first engaging portion and the second engaging portion in the horizontal longitudinal direction. ,
In each gap, spacer portions of an intervening member having spacer portions divided into a plurality of parts in the horizontal longitudinal direction are fitted in a selected number according to the size of the gap, thereby fitting the lower sill and the upper sill. It is characterized in that relative movement in the horizontal longitudinal direction with the shoe is restricted.
According to the second aspect of the present invention, in the configuration of the first aspect, the interposition member has a fixing portion fixed to the lower shoe side or the upper shoe side, and the spacer portion is basically connected to the fixing portion. It is characterized in that it is divided into a spacer and at least one adjusting spacer which is separately laminated on the basic spacer.
The invention according to claim 3 is characterized in that, in the configuration of claim 2, a plurality of adjusting spacers are provided, and the adjusting spacers have different thicknesses from each other.
The invention according to claim 4 is characterized in that, in the configuration of claim 2 or 3, the interposing member has an L-shape in a plan view in which the fixing portion and the spacer portion are at right angles.
The invention according to claim 5 is characterized in that, in the configuration of claim 2 or 3, the interposing member has a flat plate shape in which the fixing portion and the spacer portion are linear.
The invention according to claim 6 is characterized in that, in any of the configurations of claims 2 to 5, the adjusting spacer is detachably connected to the basic spacer via a connecting member.
According to a seventh aspect of the present invention, in any of the configurations of claims 2 to 5, the adjusting spacer is detachably engaged with another adjacent adjusting spacer and any of the basic spacer and the fixing portion. It is characterized by doing.
The invention according to claim 8 is characterized in that, in any of the configurations of claims 1 to 7, the interposition member is subjected to a rust preventive treatment.
In order to achieve the above object, the invention according to claim 9 has a lower shoe fixed to the lower structure, a rubber body arranged on the upper side of the lower shoe, and an intermediate plate arranged on the upper side of the rubber body. And the upper rubber, which is slidably mounted on the intermediate plate and fixed to the superstructure,
On either one side of the lower sill and the upper sill, at least a pair of first engaging portions located in the front-rear direction in the horizontal longitudinal direction of the superstructure, and on the other side, a pair of first engagement portions in the horizontal longitudinal direction. At least a pair of second engaging portions facing each other are formed, and at least two gaps are formed between the first engaging portion and the second engaging portion in the horizontal longitudinal direction. In the sliding support
It is an interposition member used to regulate the relative movement of the lower and upper sill in the horizontal longitudinal direction by fitting it into each gap.
A plurality of spacer portions are provided in the horizontal longitudinal direction, and the spacer portions can be fitted into the gaps in a number selected according to the size of the gaps.
The invention according to claim 10 has a fixing portion fixed to the lower sill side or the upper sill side in the configuration of claim 9, and the spacer portion includes a basic spacer connected to the fixing portion and a basic spacer. It is divided into at least one adjusting spacer which is laminated separately, and is characterized by having an L-shape in a plan view in which the fixing portion and the spacer portion are perpendicular to each other.
The invention according to claim 11 has a fixing portion fixed to the lower shoe side or the upper shoe side in the configuration of claim 9, and the spacer portion includes a basic spacer connected to the fixing portion and a basic spacer. It is characterized in that it is divided into at least one adjusting spacer which is laminated separately, and the fixed portion and the spacer portion are in the form of a flat plate in a straight line.
In order to achieve the above object, the invention according to claim 12 is a method for fixing a sliding bearing, which includes a lower sill fixed to a lower structure and a rubber body arranged on the upper side of the lower sill. , An intermediate plate placed on the upper side of the rubber body and an upper bearing that is slidably mounted on the intermediate plate and fixed to the superstructure, and is either a lower bearing or an upper bearing. On one side, at least a pair of first engaging portions located back and forth in the horizontal longitudinal direction of the superstructure, and on the other side, at least a pair facing the pair of first engaging portions in the horizontal longitudinal direction. In a sliding bearing in which a second engaging portion is formed and at least two gaps are formed in the horizontal longitudinal direction between the first engaging portion and the second engaging portion.
It is characterized in that the spacer portion of the interposition member according to any one of claims 9 to 11 is fitted in each gap to regulate the relative movement of the lower sill and the upper sill in the horizontal longitudinal direction. ..

本発明によれば、分割されるスペーサ部を備えた介装部材の採用により、隙間の寸法測定後直ちに介装部材を隙間に合わせてセットできる。よって、介装部材を隙間に合わせて設計・作製する必要がなくなり、施工期間の短縮化に繋がる。また、介装部材と現場の隙間との寸法が合わなくなるおそれが生じず、スライド式支承体を確実に固定できる。
特に、請求項2に記載の発明によれば、上記効果に加えて、介装部材は、固定部とスペーサ部とを有し、スペーサ部は、基本スペーサと調整スペーサとを備えることで、厚みの調整と固定とが容易に行える。
特に、請求項3に記載の発明によれば、上記効果に加えて、調整スペーサは互いに厚みが異なるので、厚みのバリエーションが多くなって選択の幅が広がる。
特に、請求項4に記載の発明によれば、上記効果に加えて、介装部材は、固定部とスペーサ部との間が直角となる平面視L字状であるため、位置決めや取付がしやすくなる。
特に、請求項5に記載の発明によれば、上記効果に加えて、介装部材は、固定部とスペーサ部とが直線状となる平板状であるため、隙間への嵌合がしやすくなる。
特に、請求項6に記載の発明によれば、上記効果に加えて、調整スペーサは連結部材を介して基本スペーサへ着脱可能であるため、選択した調整スペーサの固定が容易に行え、脱落も生じにくくなる。
特に、請求項7に記載の発明によれば、上記効果に加えて、調整スペーサは、他の調整スペーサ等に対して互いに着脱可能に係合しているため、連結部材を用いなくても調整スペーサの着脱が容易に行える。
特に、請求項8に記載の発明によれば、上記効果に加えて、介装部材には防錆処理が施されているので、防錆処理による施工期間の延長が回避できる。
According to the present invention, by adopting an intervening member provided with a spacer portion to be divided, the interposing member can be set according to the gap immediately after measuring the size of the gap. Therefore, it is not necessary to design and manufacture the interposition member according to the gap, which leads to shortening of the construction period. In addition, there is no risk that the dimensions of the intervening member and the gap at the site will not match, and the sliding bearing can be securely fixed.
In particular, according to the second aspect of the present invention, in addition to the above effects, the interposition member has a fixing portion and a spacer portion, and the spacer portion is provided with a basic spacer and an adjusting spacer to provide a thickness. Can be easily adjusted and fixed.
In particular, according to the third aspect of the present invention, in addition to the above effects, the adjusting spacers have different thicknesses from each other, so that the thickness variation increases and the range of selection is widened.
In particular, according to the invention of claim 4, in addition to the above effect, the interposition member has an L-shape in a plan view in which the space between the fixing portion and the spacer portion is perpendicular to each other, so that the interposition member can be positioned and mounted. It will be easier.
In particular, according to the invention of claim 5, in addition to the above effect, the interposition member has a flat plate shape in which the fixing portion and the spacer portion are linear, so that it is easy to fit into the gap. ..
In particular, according to the invention of claim 6, in addition to the above effects, since the adjusting spacer can be attached to and detached from the basic spacer via the connecting member, the selected adjusting spacer can be easily fixed and may fall off. It becomes difficult.
In particular, according to the invention of claim 7, in addition to the above effects, the adjusting spacers are detachably engaged with each other, so that the adjusting spacers can be adjusted without using a connecting member. The spacer can be easily attached and detached.
In particular, according to the invention of claim 8, in addition to the above effect, since the interposing member is subjected to the rust preventive treatment, it is possible to avoid extension of the construction period due to the rust preventive treatment.

スライド式支承体の正面図である。It is a front view of a sliding bearing. スライド式支承体の側面図である。It is a side view of a sliding bearing. スライド式支承体の正面からの拡大半断面図である。It is an enlarged semi-sectional view from the front of a sliding bearing. スライド式支承体の側面からの拡大半断面図である。It is an enlarged semi-sectional view from the side surface of a sliding bearing. (A)はスライド式支承体の平面図(介装部材は調整スペーサなし)、(B)は上沓部分の正面図である。(A) is a plan view of a sliding bearing (the intervening member has no adjusting spacer), and (B) is a front view of the upper shoe portion. 介装部材の説明図で、(A)は平面、(B)は正面、(C)は側面をそれぞれ示す。In the explanatory view of the interposing member, (A) shows a plane, (B) shows a front surface, and (C) shows a side surface. (A)は介装部材の上方からの斜視、(B)は下方からの斜視をそれぞれ示す。(A) shows a perspective view from above of the interposing member, and (B) shows a perspective view from below. 介装部材の分割構造を示す説明図である。It is explanatory drawing which shows the split structure of the interposing member. 介装部材に調整スペーサを用いたスライド式支承体の平面図である。It is a top view of the slide type bearing which used the adjustment spacer for the interposing member. 変更例の介装部材の説明図で、(A)は平面、(B)は正面、(C)は側面、(D)は斜視をそれぞれ示す。In the explanatory view of the interposition member of the modified example, (A) shows a plane, (B) shows a front surface, (C) shows a side surface, and (D) shows a perspective view. 変更例の介装部材の分割構造を示す説明図である。It is explanatory drawing which shows the divided structure of the intermediary member of the modification. 変更例の介装部材を用いたスライド式支承体の正面図である。It is a front view of the slide type bearing using the intermediary member of the modified example. 変更例の介装部材を用いたスライド式支承体の側面図である。It is a side view of the slide type bearing using the intermediary member of the modified example. (A)は変更例の介装部材(調整スペーサあり)を用いたスライド式支承体の平面図、(B)は上沓部分の正面図である。(A) is a plan view of a slide type bearing using an intervening member (with an adjustment spacer) of a modified example, and (B) is a front view of an upper shoe portion. 変更例の介装部材(調整スペーサなし)を用いたスライド式支承体の平面図である。It is a top view of the slide type bearing using the interposition member (without the adjustment spacer) of the modified example. 変更例の介装部材の分割構造を示す説明図である。It is explanatory drawing which shows the divided structure of the intermediary member of the modification.

以下、本発明の実施の形態を図面に基づいて説明する。
図1は、スライド式支承体の固定構造の一例を示す正面図、図2は側面図、図3,4はそれぞれ正面及び側面からの拡大半断面図、図5は平面図及び上沓部分の正面図である。ここでは、橋脚等の下部構造物1と、橋梁等の上部構造物2との間にスライド式支承体(以下、単に「支承体」という。)3を取り付けた構造となっている。
支承体3は、下部構造物1に固定される下沓4と、上部構造物2に固定される上沓5とを備えると共に、下沓4と上沓5との間に、下からゴム体6、中間板7、フッ素樹脂等で作成された低摩擦板8、ステンレス板9をそれぞれ配置してなる。各図において矢印A方向が上部構造物2の水平長手方向(橋梁であれば橋軸方向)、矢印B方向が水平長手方向と直交する水平短手方向を示している。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is a front view showing an example of a fixed structure of a sliding bearing, FIG. 2 is a side view, FIGS. 3 and 4 are enlarged half-section views from the front and side surfaces, respectively, and FIG. It is a front view. Here, the structure is such that a sliding bearing (hereinafter, simply referred to as “bearing body”) 3 is attached between a lower structure 1 such as a bridge pier and an upper structure 2 such as a bridge.
The bearing body 3 includes a lower shoe 4 fixed to the lower structure 1 and an upper shoe 5 fixed to the upper structure 2, and a rubber body from below between the lower shoe 4 and the upper shoe 5. 6. An intermediate plate 7, a low friction plate 8 made of fluororesin, and a stainless steel plate 9 are arranged respectively. In each figure, the direction of arrow A indicates the horizontal longitudinal direction of the superstructure 2 (in the case of a bridge, the direction of the bridge axis), and the direction of arrow B indicates the horizontal lateral direction orthogonal to the horizontal longitudinal direction.

下沓4は、下面に接合したアンカーボルト10,10・・によって下部構造物1に固定される平面視四角形の金属板で、相対向する水平長手方向の一対の側辺には、サイドブロック11,11がボルト12,12・・で固定されている。各サイドブロック11の長手方向中央には、上端に互いの対向側へ突出する突出片14を備えた平面視四角形状の立ち上がり部13が形成されて、立ち上がり部13における水平長手方向の前後の外面は、水平短手方向と平行な第1係合部としての一対の第1係合面13a,13aとなっている。 The lower sill 4 is a metal plate having a rectangular shape in a plan view, which is fixed to the lower structure 1 by anchor bolts 10, 10 ... , 11 are fixed with bolts 12, 12, ... At the center of each side block 11 in the longitudinal direction, a plan-viewing quadrangular rising portion 13 having a protruding piece 14 projecting toward the opposite side is formed at the upper end, and the front and rear outer surfaces of the rising portion 13 in the horizontal longitudinal direction. Is a pair of first engaging surfaces 13a, 13a as a first engaging portion parallel to the horizontal lateral direction.

上沓5は、水平長手方向及び水平短手方向の寸法が共に下沓4より小さく形成されて水平短手方向でサイドブロック11,11間に収まる平面視四角形状の金属板で、上面には、上部構造物2への固定用のセットボルト16,16・・が接合されている。また、上沓5の中央には、上沓5と上部構造物2とに跨がって嵌合する平面視円形のせん断キー17が設けられている。
さらに、上沓5において、相対向する水平長手方向の一対の側辺中央には、水平長手方向の内法寸法が立ち上がり部13よりも大きく形成されて立ち上がり部13の突出片14側が部分的に遊嵌する平面視コ字状の凹部18,18が形成されている。各凹部18における水平長手方向の前後の内面は、水平短手方向と平行な第2係合部としての一対の第2係合面18a,18aとなってそれぞれ第1係合面13aと非接触で対峙し、両面間に水平長手方向の隙間S(図5)をそれぞれ形成している。凹部18の底となる水平長手方向の内面は、立ち上がり部13の突出片14と近接しており、当該内面の下部には、突出片14が上方から非接触で被さる段部19が形成されている。
The upper sill 5 is a metal plate having a rectangular shape in a plan view, which is formed to be smaller in both the horizontal longitudinal direction and the horizontal lateral direction than the lower sill 4 and fits between the side blocks 11 and 11 in the horizontal lateral direction. , Set bolts 16, 16 ... For fixing to the superstructure 2 are joined. Further, in the center of the upper sill 5, a shear key 17 having a circular shape in a plan view is provided so as to straddle and fit the upper sill 5 and the superstructure 2.
Further, in the upper shoe 5, the inner dimension in the horizontal longitudinal direction is formed larger than the rising portion 13 at the center of the pair of side sides in the horizontally longitudinal direction facing each other, and the protruding piece 14 side of the rising portion 13 is partially formed. Plane-viewing U-shaped recesses 18 and 18 that are loosely fitted are formed. The front and rear inner surfaces of each recess 18 in the horizontal longitudinal direction form a pair of second engagement surfaces 18a and 18a as second engagement portions parallel to the horizontal lateral direction, and are not in contact with the first engagement surface 13a, respectively. A gap S (FIG. 5) in the horizontal longitudinal direction is formed between both sides. The inner surface in the horizontal longitudinal direction, which is the bottom of the recess 18, is close to the projecting piece 14 of the rising portion 13, and a step portion 19 over which the projecting piece 14 is covered from above in a non-contact manner is formed at the lower portion of the inner surface. There is.

ゴム体6は、図3,4に示すように、ゴム製の直方体である。なお、ゴムの材質は問わず、補強鋼板が埋設されていてもよい。
中間板7は、水平長手方向及び水平短手方向の寸法が共に上沓5よりも小さく形成された平面視四角形状の金属板で、サイドブロック11,11と平行な水平長手方向の一対の側辺には、立ち上がり部13,13が遊嵌する切欠部22,22がそれぞれ形成されている。
底摩擦板8は、中間板7の上面中央に形成された円形凹部23に嵌合する円盤状で、嵌合状態で中間板7の上面より上方へ突出している。
ステンレス板9は、上沓5の下面に取り付けられて、下面が低摩擦板8の上面に当接して互いにスライド可能となっている。
As shown in FIGS. 3 and 4, the rubber body 6 is a rectangular parallelepiped made of rubber. Regardless of the material of the rubber, a reinforcing steel plate may be embedded.
The intermediate plate 7 is a rectangular metal plate in a plan view in which the dimensions in the horizontal longitudinal direction and the horizontal lateral direction are both smaller than those in the upper sill 5, and the pair of sides in the horizontal longitudinal direction parallel to the side blocks 11 and 11. Notches 22 and 22 into which the rising portions 13 and 13 are loosely fitted are formed on the sides, respectively.
The bottom friction plate 8 has a disk shape that fits into the circular recess 23 formed in the center of the upper surface of the intermediate plate 7, and projects upward from the upper surface of the intermediate plate 7 in the fitted state.
The stainless steel plate 9 is attached to the lower surface of the upper shoe 5, and the lower surface abuts on the upper surface of the low friction plate 8 so that the stainless steel plate 9 can slide with each other.

そして、図5に示すように、下沓4の各サイドブロック11の立ち上がり部13と、上沓5の凹部18との間に形成される4カ所の隙間Sには、支承体3を固定支承として機能させるための介装部材30がそれぞれ設けられている。
この介装部材30は、図6,7に示すように、帯板状の固定部31と、固定部31と直角に繋がり、固定部31より幅広な四角板状のスペーサ部32とからなる平面視L字状の金属製で、後述する調整スペーサ35A~35Cも含めて下沓4及び上沓5と同様に予め表面全体に防錆処理が施されている。
固定部31には、固定部31の長手方向に延びる長孔33,33が、長手方向に沿って2つ貫通形成されている。
Then, as shown in FIG. 5, the support body 3 is fixedly supported in the four gaps S formed between the rising portion 13 of each side block 11 of the lower shoe 4 and the recess 18 of the upper shoe 5. Each of the interposing members 30 is provided to function as an intermediary member 30.
As shown in FIGS. 6 and 7, the interposing member 30 is a flat surface composed of a strip-shaped fixing portion 31 and a square plate-shaped spacer portion 32 connected at a right angle to the fixing portion 31 and wider than the fixing portion 31. It is made of metal with an L-shape, and the entire surface is preliminarily rust-proofed, including the adjustment spacers 35A to 35C, which will be described later, in the same manner as the lower shoe 4 and the upper shoe 5.
In the fixed portion 31, two elongated holes 33, 33 extending in the longitudinal direction of the fixed portion 31 are formed through the fixed portion 31 along the longitudinal direction.

一方、スペーサ部32は、図8にも示すように、固定部31へ直角に連設され、固定部31よりも厚みが大きい基本スペーサ34と、基本スペーサ34に、連結部材としての2本の皿ネジ36,36によって着脱可能に取り付けられる3枚の調整スペーサ35A~35Cとからなる。
調整スペーサ35A~35Cは、基本スペーサ34から最も離れた調整スペーサ35Aが最も厚みが大きく、そこから調整スペーサ35B、35Cの順に厚みが小さくなっている。具体的な数値を例示すると、基本スペーサ34は、最低限必要な厚みとして10mmに設定されて、調整スペーサ35A~35Cは、想定される隙間Sの変動幅(3~10mm)に対応して、調整スペーサ35Aが4mm、調整スペーサ35Bが2mm、調整スペーサ35Cが1mmに設定されている。
ここでは基本スペーサ34にネジ孔37が、調整スペーサ35B,35Cに透孔38,38が形成され、最外の調整スペーサ35Aにはザグリ孔39が貫通形成されている。また、調整スペーサ35A~35Cを含むスペーサ部32の先端部下側には、切欠40が形成されている。
On the other hand, as shown in FIG. 8, the spacer portion 32 is connected to the fixed portion 31 at a right angle to the basic spacer 34, which is thicker than the fixed portion 31, and the basic spacer 34 has two connecting members. It consists of three adjusting spacers 35A to 35C that are detachably attached by the countersunk screws 36 and 36.
As for the adjusting spacers 35A to 35C, the adjusting spacer 35A farthest from the basic spacer 34 has the largest thickness, and the adjusting spacers 35B and 35C have the smallest thickness in this order. To exemplify a specific numerical value, the basic spacer 34 is set to 10 mm as the minimum required thickness, and the adjustment spacers 35A to 35C correspond to the expected fluctuation width of the gap S (3 to 10 mm). The adjustment spacer 35A is set to 4 mm, the adjustment spacer 35B is set to 2 mm, and the adjustment spacer 35C is set to 1 mm.
Here, screw holes 37 are formed in the basic spacer 34, through holes 38 and 38 are formed in the adjusting spacers 35B and 35C, and counterbore holes 39 are formed through the outermost adjusting spacer 35A. Further, a notch 40 is formed on the lower side of the tip portion of the spacer portion 32 including the adjusting spacers 35A to 35C.

よって、スペーサ部32は、調整スペーサ35A~35Cの全てが皿ネジ36,36により基本スペーサ34に取り付けられてスペーサ部32の厚みが最大となる第1パターンと、調整スペーサ35A,35Bのみが取り付けられて第1パターンの次に厚みが小さい第2パターンと、調整スペーサ35A,35Cのみが取り付けられて第2パターンの次に厚みが小さい第3パターンと、調整スペーサ35Aのみが取り付けられて第3パターンの次に厚みが小さい第4パターンと、調整スペーサ35A~35Cの何れも取り付けられず基本スペーサ34のみとなって第4パターンの次に厚みが小さい第5パターンとの5段階に厚みが調整可能となっている。 Therefore, in the spacer portion 32, only the first pattern in which all of the adjusting spacers 35A to 35C are attached to the basic spacer 34 by the countersunk screws 36 and 36 to maximize the thickness of the spacer portion 32 and the adjusting spacers 35A and 35B are attached. The second pattern, which has the next smallest thickness after the first pattern, and the third pattern, which has only the adjustment spacers 35A and 35C attached and has the next smallest thickness after the second pattern, and the third pattern, which has only the adjustment spacer 35A attached, are attached. The thickness is adjusted in 5 stages: the 4th pattern, which is the next smallest thickness after the pattern, and the 5th pattern, which is the next smallest thickness after the 4th pattern, with only the basic spacer 34 attached without any of the adjustment spacers 35A to 35C attached. It is possible.

図5に示す例では、各介装部材30のスペーサ部32を、基本スペーサ34のみで最も厚みが小さい第5パターンとして、固定部31を、上沓5の水平長手方向の側面にあてがい、スペーサ部32を各隙間Sに嵌合させて、切欠40を凹部18の段部19に係止させて位置決めした状態で、固定部31をボルト41,41によって上沓5に固定している。これにより、上沓5が下沓4側に対して水平長手方向での移動が規制された固定支承となっている。 In the example shown in FIG. 5, the spacer portion 32 of each interposing member 30 is used as the fifth pattern having the smallest thickness only with the basic spacer 34, and the fixing portion 31 is applied to the side surface of the upper shoe 5 in the horizontal longitudinal direction to form a spacer. The fixing portion 31 is fixed to the upper shoe 5 by the bolts 41 and 41 in a state where the portion 32 is fitted into each gap S and the notch 40 is locked to the step portion 19 of the recess 18 for positioning. As a result, the upper sill 5 is a fixed bearing in which movement in the horizontal longitudinal direction is restricted with respect to the lower sill 4 side.

以上の如く構成された支承体3の施工は、以下のように行われる。
上沓5を中間板7の低摩擦板8と上沓5のステンレス板9との間でスライド可能とした状態で、下部構造物1であるコンクリート橋脚に設けた凹部内に下沓4のアンカーボルト10を配置し、凹部内にコンクリートを打設して下沓4と下部構造物1とを固定する。
この間に上部構造物2が水平長手方向へ伸縮すると、低摩擦板8上でステンレス板9がスライドして上沓5が下沓4に対して水平長手方向へ変位する。このとき、上沓5の凹部18と下沓4の立ち上がり部13との間には、予め隙間Sが設定されているので、上沓5が変位しても立ち上がり部13と干渉することはない。
The construction of the bearing body 3 configured as described above is performed as follows.
Anchor of the lower sill 4 in the recess provided in the concrete pier which is the lower structure 1 in a state where the upper sill 5 can be slid between the low friction plate 8 of the intermediate plate 7 and the stainless steel plate 9 of the upper sill 5. Bolts 10 are arranged, and concrete is placed in the recesses to fix the lower shoe 4 and the substructure 1.
During this period, when the superstructure 2 expands and contracts in the horizontal longitudinal direction, the stainless plate 9 slides on the low friction plate 8 and the upper shoe 5 is displaced in the horizontal longitudinal direction with respect to the lower shoe 4. At this time, since the gap S is set in advance between the recess 18 of the upper shoe 5 and the rising portion 13 of the lower shoe 4, even if the upper shoe 5 is displaced, it does not interfere with the rising portion 13. ..

下沓4と下部構造物1との固化後、各立ち上がり部13の前後に形成される隙間S,Sが、介装部材30のスペーサ部32の厚みよりも小さい場合は、各介装部材30を、スペーサ部32を基本スペーサ34のみの第5パターンとして、図5に示すように、スペーサ部32を隙間Sに嵌合させて固定部31を上沓5にボルト41,41で固定すれば、上沓5が下沓4側に対して水平長手方向での移動が規制された固定支承となる。
一方、隙間Sが基本スペーサ34の厚みよりも大きい場合は、例えば各介装部材30を、スペーサ部32に全ての調整スペーサ35A~35Cを取り付けた第1パターンとして、図9に示すように、スペーサ部32を隙間Sに嵌合させて固定部31を上沓5にボルト41,41で固定すれば、同様に上沓5を固定できる。
なお、何れの場合も水平長手方向での固定部31の位置は、ボルト41を貫通させる長孔33によって微調整できる。また、スペーサ部32の嵌合時には、左右の第1係合面13aと第2係合面18aとの間にそれぞれスポンジ又はゴム板を介在させて、スペーサ部32を密着させるのが望ましい。
When the gaps S and S formed before and after each rising portion 13 after solidification of the lower sill 4 and the lower structure 1 are smaller than the thickness of the spacer portion 32 of the interposing member 30, each interposing member 30 With the spacer portion 32 as the fifth pattern of only the basic spacer 34, as shown in FIG. 5, if the spacer portion 32 is fitted into the gap S and the fixing portion 31 is fixed to the upper shoe 5 with bolts 41 and 41. , The upper sill 5 is a fixed bearing whose movement in the horizontal longitudinal direction is restricted with respect to the lower sill 4 side.
On the other hand, when the gap S is larger than the thickness of the basic spacer 34, for example, as a first pattern in which each of the interposing members 30 is attached to the spacer portion 32 with all the adjusting spacers 35A to 35C, as shown in FIG. If the spacer portion 32 is fitted into the gap S and the fixing portion 31 is fixed to the upper shoe 5 with bolts 41 and 41, the upper shoe 5 can be fixed in the same manner.
In either case, the position of the fixing portion 31 in the horizontal longitudinal direction can be finely adjusted by the elongated hole 33 through which the bolt 41 is passed. Further, when the spacer portion 32 is fitted, it is desirable that a sponge or a rubber plate is interposed between the left and right first engaging surfaces 13a and the second engaging surface 18a, respectively, so that the spacer portion 32 is brought into close contact with the spacer portion 32.

また、上沓5の変位によって立ち上がり部13の前後に形成される隙間S,Sの大きさが不均一であっても、基本スペーサ34に取り付ける調整スペーサ35A~35Cの数を変更して各隙間Sごとに合わせたパターンを選択すれば、隙間Sに嵌合させることができる。
こうして固定された支承体3では、上部構造物2に水平長手方向の変位や回転力が作用すると、ゴム体6が追従して変位し、振動や横揺れを緩和することができる。
Further, even if the sizes of the gaps S and S formed before and after the rising portion 13 due to the displacement of the upper shoe 5 are not uniform, the number of the adjusting spacers 35A to 35C attached to the basic spacer 34 is changed to change each gap. If a pattern suitable for each S is selected, it can be fitted in the gap S.
In the bearing body 3 fixed in this way, when a displacement or a rotational force in the horizontal longitudinal direction acts on the superstructure 2, the rubber body 6 follows and displaces, and vibration and rolling can be alleviated.

このように、上記形態の介装部材30を用いた支承体3の固定構造及び固定方法によれば、下沓4側には、上部構造物2の水平長手方向で前後に位置する一対の第1係合面13a,13aが、上沓5側には、水平長手方向で一対の第1係合面13a,13aとそれぞれ対峙する一対の第2係合面18a,18aがそれぞれ形成されると共に、第1係合面13aと第2係合面18aとの間には、水平長手方向で4つの隙間Sが形成されて、各隙間Sには、水平長手方向で複数に分割されるスペーサ部32を備えた介装部材30のスペーサ部32が、隙間Sの大きさに合わせて選択した数でそれぞれ嵌合されることで、下沓4と上沓5との水平長手方向での相対移動が規制されている。
よって、隙間Sの寸法測定後直ちに介装部材30を隙間Sに合わせてセットできる。よって、介装部材30を隙間Sに合わせて設計・作製する必要がなくなり、施工期間の短縮化に繋がる。また、介装部材30と現場の隙間Sとの寸法が合わなくなるおそれが生じず、支承体3を確実に固定できる。
As described above, according to the fixing structure and fixing method of the support body 3 using the interposing member 30 of the above-described form, a pair of first positions located in the front-rear direction in the horizontal longitudinal direction of the superstructure 2 on the lower sill 4 side. The 1 engaging surfaces 13a and 13a are formed on the upper sill 5 side, and a pair of second engaging surfaces 18a and 18a facing each other in the horizontal longitudinal direction are formed. , Four gaps S are formed between the first engaging surface 13a and the second engaging surface 18a in the horizontal longitudinal direction, and each gap S is divided into a plurality of spacer portions in the horizontal longitudinal direction. By fitting the spacer portions 32 of the interposing member 30 provided with 32 in a selected number according to the size of the gap S, the lower sill 4 and the upper sill 5 move relative to each other in the horizontal longitudinal direction. Is regulated.
Therefore, the intervening member 30 can be set in accordance with the gap S immediately after measuring the dimensions of the gap S. Therefore, it is not necessary to design and manufacture the interposing member 30 in accordance with the gap S, which leads to shortening of the construction period. Further, there is no possibility that the dimensions of the interposing member 30 and the gap S at the site do not match, and the bearing 3 can be reliably fixed.

特にここでは、介装部材30は、下沓4側に固定される固定部31を有し、スペーサ部32は、固定部31に連設される基本スペーサ34と、基本スペーサ34に別体で積層される3つの調整スペーサ35A~35Cとを備えることで、厚みの調整と固定とが容易に行える。
また、3つの調整スペーサ35A~35Cは互いに厚みが異なるので、厚みのバリエーションが多くなって選択の幅が広がる。
さらに、介装部材30は、固定部31とスペーサ部32との間が直角となる平面視L字状であるため、位置決めや取付がしやすくなる。
In particular, here, the interposing member 30 has a fixing portion 31 fixed to the lower shoe 4 side, and the spacer portion 32 is a separate body from the basic spacer 34 connected to the fixing portion 31 and the basic spacer 34. By providing the three adjusting spacers 35A to 35C to be laminated, the thickness can be easily adjusted and fixed.
Further, since the three adjusting spacers 35A to 35C have different thicknesses from each other, the variation in thickness is increased and the range of selection is widened.
Further, since the interposing member 30 has an L-shape in a plan view in which the space between the fixing portion 31 and the spacer portion 32 is at a right angle, positioning and mounting are easy.

加えて、調整スペーサ35A~35Cを、皿ネジ36を介して基本スペーサ34へ着脱可能に連結しているので、選択した調整スペーサ35A~35Cの固定が容易に行え、脱落も生じにくくなる。
そして、介装部材30には防錆処理が施されているので、防錆処理による施工期間の延長が回避できる。
In addition, since the adjusting spacers 35A to 35C are detachably connected to the basic spacer 34 via the countersunk screws 36, the selected adjusting spacers 35A to 35C can be easily fixed and are less likely to fall off.
Further, since the interposing member 30 is subjected to the rust preventive treatment, it is possible to avoid extension of the construction period due to the rust preventive treatment.

なお、上記形態では、介装部材を平面視L字状としているが、図10,11に示す介装部材30Aのように、2つの貫通孔45,45を備えた固定部31と、固定部31よりも幅広の基本スペーサ34とが直線状に繋がる一枚板形状としてもよい。ここでは調整スペーサ35A~35Cを、固定部31と基本スペーサ34とを含む形状で形成して固定部31側の端部に、貫通孔45,45と同心の2つの透孔46,46をそれぞれ形成している。よって、貫通孔45,45と共に透孔46,46へボルト41,41を貫通させることで、調整スペーサ35A~35Cを固定部31側で固定して反対側でスペーサ部32が形成可能となっている。 In the above embodiment, the interposing member is L-shaped in a plan view, but as in the interposing member 30A shown in FIGS. 10 and 11, the fixing portion 31 having two through holes 45 and 45 and the fixing portion. It may be a single plate shape in which the basic spacer 34 wider than 31 is connected in a straight line. Here, the adjusting spacers 35A to 35C are formed in a shape including the fixing portion 31 and the basic spacer 34, and two through holes 46, 46 concentric with the through holes 45, 45 are formed at the end portion on the fixing portion 31 side, respectively. Is forming. Therefore, by passing the bolts 41 and 41 through the through holes 46 and 46 together with the through holes 45 and 45, the adjustment spacers 35A to 35C can be fixed on the fixing portion 31 side and the spacer portion 32 can be formed on the opposite side. There is.

この介装部材30Aを用いる場合、図12~14に示すように、スペーサ部32を第1係合面13aと第2係合面18aとの隙間Sに嵌合させて、固定部31を、上沓5ではなく立ち上がり部13の第1係合面13a,13aに、貫通孔45,45及び透孔46,46を介して調整スペーサ35A~35Cごとボルト41,41で固定する。ここでも隙間Sに対してスペーサ部32の幅が合わなければ、調整スペーサ35A~35Cの数を変更して隙間Sに合わせたパターンを選択すればよい。また、図15に示すように、調整スペーサ35A~35Cを全て外して基本スペーサ34のみを隙間に嵌合させるパターンとしてもよい。
このように、介装部材30Aを、固定部31とスペーサ部32とが直線状となる平板状とすれば、介装部材30Aを第2係合面18aに沿わせてスライドさせながらスペーサ部32を隙間Sへ嵌合させることができ、嵌合させやすくなる。
When this interposing member 30A is used, as shown in FIGS. 12 to 14, the spacer portion 32 is fitted into the gap S between the first engaging surface 13a and the second engaging surface 18a, and the fixing portion 31 is fixed. The adjusting spacers 35A to 35C are fixed together with bolts 41 and 41 to the first engaging surfaces 13a and 13a of the rising portion 13 instead of the upper shoe 5 via the through holes 45 and 45 and the through holes 46 and 46. Again, if the width of the spacer portion 32 does not match the gap S, the number of adjustment spacers 35A to 35C may be changed to select a pattern that matches the gap S. Further, as shown in FIG. 15, the pattern may be such that all the adjusting spacers 35A to 35C are removed and only the basic spacer 34 is fitted in the gap.
As described above, if the interposing member 30A has a flat plate shape in which the fixing portion 31 and the spacer portion 32 are linear, the interposing member 30A is slid along the second engaging surface 18a and the spacer portion 32 is formed. Can be fitted into the gap S, which facilitates fitting.

一方、基本スペーサと調整スペーサとの連結は、ネジ等の連結部材による他、例えば図16に示す介装部材30Bのように、基本スペーサ34に係合凹部47を、各調整スペーサ35A~35Cに、係合凹部47に嵌合する係合凸部48と、係合凹部47と同じ形状及び深さの係合凹部49をそれぞれ表裏両面に一又は複数個設けて(但し、最外の調整スペーサ35Aには係合凸部48のみを設けている)、凹凸同士の嵌合によって互いに着脱可能に連結することも可能である。
このように、調整スペーサ35A~35Cを、隣接する他の調整スペーサ35A~35Cに対して互いに着脱可能に係合させるようにすれば、皿ネジ等の連結部材を用いなくても調整スペーサ35A~35Cの着脱が容易に行える。なお、係合による着脱は調整スペーサ同士に限らず、基本スペーサや固定部に対して互いに係合させるようにしてもよい。
また、上記形態及び変更例において、調整スペーサの数や厚みは上記形態に限らず、適宜変更可能で、厚みの異なる調整スペーサの数を増やせばより細かい隙間への対応が可能となる。さらに、固定部及びスペーサ部の形状も適宜変更可能である。
On the other hand, the connection between the basic spacer and the adjustment spacer is made by a connecting member such as a screw, and an engaging recess 47 is provided in the basic spacer 34 and the adjustment spacers 35A to 35C, for example, as in the interposition member 30B shown in FIG. , An engaging convex portion 48 that fits into the engaging concave portion 47 and one or a plurality of engaging concave portions 49 having the same shape and depth as the engaging concave portion 47 are provided on both the front and back surfaces (however, the outermost adjusting spacer). The 35A is provided with only the engaging convex portion 48), and it is also possible to detachably connect the concave and convex portions to each other by fitting them together.
In this way, if the adjusting spacers 35A to 35C are detachably engaged with other adjacent adjusting spacers 35A to 35C, the adjusting spacers 35A to 35A to 35C can be used without using a connecting member such as a countersunk screw. The 35C can be easily attached and detached. The attachment / detachment by engagement is not limited to the adjustment spacers, and may be engaged with the basic spacer or the fixed portion.
Further, in the above-mentioned form and modification examples, the number and thickness of the adjusting spacers are not limited to the above-mentioned form, and can be appropriately changed, and if the number of adjusting spacers having different thicknesses is increased, it becomes possible to cope with finer gaps. Further, the shapes of the fixing portion and the spacer portion can be changed as appropriate.

そして、下沓や上沓、ゴム体や中間板、立ち上がり部等の形状も上記形態に限らず適宜変更可能で、上記形態では下沓側の立ち上がり部を上沓の凹部に遊嵌させているが、これと逆に、下沓側に凹部を、上沓側に凸部を設けて遊嵌させ、生じた隙間に介装部材を介在させてもよい。隙間の数も上記形態に限定されない。
また、上記形態では、支承体の下沓側を先に下部構造物側へ固定して上沓側を上部構造物の伸縮に伴ってスライドさせて、生じた隙間を介装部材で固定するようにしているが、これと逆に、支承体の上沓側を先に上部構造物側へ固定して下沓側を上部構造物の伸縮に伴ってスライドさせ、生じた隙間を介装部材で固定する構造であっても本発明は適用可能である。
さらに、上部構造物及び下部構造物については、コンクリート桁、鋼桁、コンクリート橋脚、鋼橋脚の任意の組み合わせに適用することができる。
The shapes of the lower shoe, the upper shoe, the rubber body, the intermediate plate, the rising portion, etc. can be changed as appropriate without being limited to the above form. However, on the contrary, a concave portion may be provided on the lower shoe side and a convex portion may be provided on the upper shoe side to allow loose fitting, and an interposing member may be interposed in the generated gap. The number of gaps is also not limited to the above form.
Further, in the above embodiment, the lower sill side of the bearing is first fixed to the lower structure side, the upper sill side is slid as the upper structure expands and contracts, and the generated gap is fixed by the interposing member. However, on the contrary, the upper sill side of the bearing is fixed to the upper structure side first, and the lower sill side is slid as the upper structure expands and contracts, and the gap created by the interposition member is used. The present invention is applicable even if the structure is fixed.
Further, the superstructure and the substructure can be applied to any combination of concrete girder, steel girder, concrete pier, and steel pier.

1・・下部構造物、2・・上部構造物、3・・スライド式支承体、4・・下沓、5・・上沓、6・・ゴム体、7・・中間板、8・・低摩擦板、9・・ステンレス板、11・・サイドブロック、13・・立ち上がり部、13a・・第1係合面、14・・突出片、18・・凹部、18a・・第2係合面、30,30A,30B・・介装部材、31・・固定部、32・・スペーサ部、33・・長孔、34・・基本スペーサ、35A~35C・・調整スペーサ、36・・皿ネジ、41・・ボルト、S・・隙間。 1 ... Lower structure, 2 ... Upper structure, 3 ... Sliding bearing, 4 ... Lower sill, 5 ... Upper sill, 6 ... Rubber body, 7 ... Intermediate plate, 8 ... Low Friction plate, 9 ... Stainless steel plate, 11 ... Side block, 13 ... Rising part, 13a ... 1st engaging surface, 14 ... Projecting piece, 18 ... Recessed, 18a ... 2nd engaging surface, 30, 30A, 30B ... Intermediary member, 31 ... Fixed part, 32 ... Spacer part, 33 ... Long hole, 34 ... Basic spacer, 35A-35C ... Adjustment spacer, 36 ... Flat head screw, 41・ ・ Bolt, S ・ ・ Gap.

Claims (12)

下部構造物に固定される下沓と、
前記下沓の上側に配置されるゴム体と、
前記ゴム体の上側に配置される中間板と、
前記中間板に対してスライド可能に載置され、上部構造物に固定される上沓と、を含んでなるスライド式支承体の固定構造であって、
前記下沓と前記上沓との何れか一方側には、前記上部構造物の水平長手方向で前後に位置する少なくとも一対の第1係合部が、他方側には、前記水平長手方向で前記一対の第1係合部とそれぞれ対峙する少なくとも一対の第2係合部がそれぞれ形成されると共に、前記第1係合部と前記第2係合部との間には、前記水平長手方向で少なくとも2つの隙間が形成されて、
各前記隙間には、前記水平長手方向で複数に分割されるスペーサ部を備えた介装部材の前記スペーサ部が、前記隙間の大きさに合わせて選択した数でそれぞれ嵌合されることで、前記下沓と前記上沓との前記水平長手方向での相対移動が規制されていることを特徴とするスライド式支承体の固定構造。
The lower sill fixed to the substructure and
The rubber body placed on the upper side of the lower shoe and
An intermediate plate arranged on the upper side of the rubber body and
It is a fixing structure of a sliding bearing including an upper shoe that is slidably mounted on the intermediate plate and fixed to the superstructure.
On either one side of the lower sill and the upper sill, at least a pair of first engaging portions located in the front-rear direction in the horizontal longitudinal direction of the superstructure, and on the other side, the said in the horizontal longitudinal direction. At least a pair of second engaging portions facing each other with the pair of first engaging portions are formed, and between the first engaging portion and the second engaging portion in the horizontal longitudinal direction. At least two gaps are formed,
In each of the gaps, the spacer portions of the interposing member provided with the spacer portions divided into a plurality of parts in the horizontal longitudinal direction are fitted in a number selected according to the size of the gap. A fixed structure of a sliding bearing, characterized in that relative movement of the lower sill and the upper sill in the horizontal longitudinal direction is restricted.
前記介装部材は、前記下沓側又は前記上沓側に固定される固定部を有し、前記スペーサ部は、前記固定部に連設される基本スペーサと、前記基本スペーサに別体で積層される少なくとも1つの調整スペーサとに分割されていることを特徴とする請求項1に記載のスライド式支承体の固定構造。 The interposition member has a fixing portion fixed to the lower sill side or the upper sill side, and the spacer portion is laminated separately from the basic spacer connected to the fixing portion and the basic spacer. The fixed structure of a sliding bearing according to claim 1, wherein the sliding bearing is divided into at least one adjusting spacer. 前記調整スペーサを複数有し、各前記調整スペーサは互いに厚みが異なることを特徴とする請求項2に記載のスライド式支承体の固定構造。 The fixed structure of a sliding bearing according to claim 2, wherein the adjusting spacers have a plurality of the adjusting spacers, and the adjusting spacers have different thicknesses from each other. 前記介装部材は、前記固定部と前記スペーサ部との間が直角となる平面視L字状であることを特徴とする請求項2又は3に記載のスライド式支承体の固定構造。 The fixing structure of a sliding bearing according to claim 2 or 3, wherein the interposing member has an L-shape in a plan view in which the fixing portion and the spacer portion are perpendicular to each other. 前記介装部材は、前記固定部と前記スペーサ部とが直線状となる平板状であることを特徴とする請求項2又は3に記載のスライド式支承体の固定構造。 The fixing structure of a sliding bearing according to claim 2 or 3, wherein the interposing member has a flat plate shape in which the fixing portion and the spacer portion are linear. 前記調整スペーサは、連結部材を介して前記基本スペーサへ着脱可能に連結されていることを特徴とする請求項2乃至5の何れかに記載のスライド式支承体の固定構造。 The fixing structure for a sliding bearing according to any one of claims 2 to 5, wherein the adjusting spacer is detachably connected to the basic spacer via a connecting member. 前記調整スペーサは、隣接する他の前記調整スペーサと前記基本スペーサと前記固定部との何れかに対して互いに着脱可能に係合していることを特徴とする請求項2乃至5の何れかに記載のスライド式支承体の固定構造。 The adjustment spacer according to any one of claims 2 to 5, wherein the adjustment spacer is detachably engaged with any of the other adjacent adjustment spacers, the basic spacer, and the fixing portion. Fixed structure of the described sliding bearing. 前記介装部材には防錆処理が施されていることを特徴とする請求項1乃至7の何れかに記載のスライド式支承体の固定構造。 The fixing structure of a sliding bearing according to any one of claims 1 to 7, wherein the interposing member is subjected to a rust preventive treatment. 下部構造物に固定される下沓と、
前記下沓の上側に配置されるゴム体と、
前記ゴム体の上側に配置される中間板と、
前記中間板に対してスライド可能に載置され、上部構造物に固定される上沓と、を含んでなり、
前記下沓と前記上沓との何れか一方側には、前記上部構造物の水平長手方向で前後に位置する少なくとも一対の第1係合部が、他方側には、前記水平長手方向で前記一対の第1係合部とそれぞれ対峙する少なくとも一対の第2係合部がそれぞれ形成されると共に、前記第1係合部と前記第2係合部との間には、前記水平長手方向で少なくとも2つの隙間が形成されるスライド式支承体において、
各前記隙間にそれぞれ嵌合させて前記下沓と前記上沓との前記水平長手方向での相対移動を規制するために用いられる介装部材であって、
前記水平長手方向で複数に分割されるスペーサ部を備え、前記スペーサ部が、前記隙間の大きさに合わせて選択した数でそれぞれ前記隙間に嵌合可能であることを特徴とするスライド式支承体の固定用の介装部材。
The lower sill fixed to the substructure and
The rubber body placed on the upper side of the lower shoe and
An intermediate plate arranged on the upper side of the rubber body and
It comprises an upper shoe that is slidably mounted on the intermediate plate and fixed to the superstructure.
On either one side of the lower sill and the upper sill, at least a pair of first engaging portions located in the front-rear direction in the horizontal longitudinal direction of the superstructure, and on the other side, the said in the horizontal longitudinal direction. At least a pair of second engaging portions facing each other with the pair of first engaging portions are formed, and between the first engaging portion and the second engaging portion in the horizontal longitudinal direction. In a sliding support with at least two gaps formed
An interposition member used to regulate the relative movement of the lower shoe and the upper shoe in the horizontal longitudinal direction by being fitted into each of the gaps.
A sliding bearing having a spacer portion divided into a plurality of parts in the horizontal longitudinal direction, and the spacer portions can be fitted into the gap in a number selected according to the size of the gap. Intermediary member for fixing.
前記下沓側又は前記上沓側に固定される固定部を有し、前記スペーサ部は、前記固定部に連設される基本スペーサと、前記基本スペーサに別体で積層される少なくとも1つの調整スペーサとに分割され、前記固定部と前記スペーサ部との間が直角となる平面視L字状であることを特徴とする請求項9に記載のスライド式支承体の固定用の介装部材。 The spacer portion has a fixing portion fixed to the lower sill side or the upper sill side, and the spacer portion is a basic spacer connected to the fixing portion and at least one adjustment to be laminated separately on the basic spacer. The interposition member for fixing a slide-type bearing according to claim 9, wherein the fixing portion is divided into a spacer and the fixing portion and the spacer portion have a right-angled L-shape in a plan view. 前記下沓側又は前記上沓側に固定される固定部を有し、前記スペーサ部は、前記固定部に連設される基本スペーサと、前記基本スペーサに別体で積層される少なくとも1つの調整スペーサとに分割され、前記固定部と前記スペーサ部とが直線状となる平板状であることを特徴とする請求項9に記載のスライド式支承体の固定用の介装部材。 The spacer portion has a fixing portion fixed to the lower sill side or the upper sill side, and the spacer portion is a basic spacer connected to the fixing portion and at least one adjustment to be laminated separately on the basic spacer. The interposition member for fixing a slide-type bearing according to claim 9, wherein the fixing portion and the spacer portion are divided into spacers and have a flat plate shape in which the fixing portion and the spacer portion are linear. 下部構造物に固定される下沓と、
前記下沓の上側に配置されるゴム体と、
前記ゴム体の上側に配置される中間板と、
前記中間板に対してスライド可能に載置され、上部構造物に固定される上沓と、を含んでなり、
前記下沓と前記上沓との何れか一方側には、前記上部構造物の水平長手方向で前後に位置する少なくとも一対の第1係合部が、他方側には、前記水平長手方向で前記一対の第1係合部とそれぞれ対峙する少なくとも一対の第2係合部がそれぞれ形成されると共に、前記第1係合部と前記第2係合部との間には、前記水平長手方向で少なくとも2つの隙間が形成されるスライド式支承体において、
各前記隙間に、請求項9乃至11の何れかに記載の介装部材のスペーサ部をそれぞれ嵌合させて、前記下沓と前記上沓との前記水平長手方向での相対移動を規制することを特徴とするスライド式支承体の固定方法。
The lower sill fixed to the substructure and
The rubber body placed on the upper side of the lower shoe and
An intermediate plate arranged on the upper side of the rubber body and
It comprises an upper shoe that is slidably mounted on the intermediate plate and fixed to the superstructure.
On either one side of the lower sill and the upper sill, at least a pair of first engaging portions located in the front-rear direction in the horizontal longitudinal direction of the superstructure, and on the other side, the said in the horizontal longitudinal direction. At least a pair of second engaging portions facing each other with the pair of first engaging portions are formed, and between the first engaging portion and the second engaging portion in the horizontal longitudinal direction. In a sliding support with at least two gaps formed
The spacer portion of the interposition member according to any one of claims 9 to 11 is fitted into each of the gaps to regulate the relative movement of the lower sill and the upper sill in the horizontal longitudinal direction. A method of fixing a sliding bearing, which is characterized by.
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