JP2003293315A - Bearing position adjusting method and its adjusting jig - Google Patents
Bearing position adjusting method and its adjusting jigInfo
- Publication number
- JP2003293315A JP2003293315A JP2002094695A JP2002094695A JP2003293315A JP 2003293315 A JP2003293315 A JP 2003293315A JP 2002094695 A JP2002094695 A JP 2002094695A JP 2002094695 A JP2002094695 A JP 2002094695A JP 2003293315 A JP2003293315 A JP 2003293315A
- Authority
- JP
- Japan
- Prior art keywords
- adjusting
- mounting plate
- jig
- fixed
- adjusting jig
- 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.)
- Pending
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、土木、建築用の構
造体等の、下部構造体に固定される下沓部材と上部構造
体に固定される上沓部材との間にゴム弾性体を介設させ
て上下構造体間の伸縮を吸収することができるように構
成された弾性支承装置の支承位置調整方法およびその調
整治具に関する。特に、下部構造体として橋脚および橋
台が、上部構造体として橋桁が適用されたものに好適で
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber elastic body between a lower shoe member fixed to a lower structure and an upper shoe member fixed to an upper structure, such as a civil engineering or construction structure. The present invention relates to a method for adjusting a bearing position of an elastic bearing device and an adjustment jig for the elastic bearing device, which are interposed so as to absorb expansion and contraction between upper and lower structures. In particular, it is suitable for a bridge pier and abutment as the lower structure and a bridge girder as the upper structure.
【0002】[0002]
【従来の技術】一般に土木、建築用の構造体等におい
て、下部構造体に対して上部構造体を支持する構造が至
る所で見受けられる。特に河川橋や高架道路等におい
て、これらの構造体が橋脚等の下部構造体の上に支持載
置されることになるが、地震や車両の走行振動等の垂直
あるいは水平振動を吸収して、構造体自体の損傷や騒音
の発生を防止したり、あるいは、季節や天候に起因した
温度変化によって橋桁等の上部構造体の橋軸方向(道路
で言えば進行方向)の伸縮を吸収するために、上部構造
体と下部構造体との間にゴム弾性体等の弾性支承装置が
介設されている。これらの弾性支承装置は、一般に、橋
脚等の下部構造体に固定される下沓部材と、橋桁等の上
部構造体に固定される上沓部材との間にゴム弾性体を介
設して構成される。そして、このゴム弾性体の垂直方向
の耐圧縮力および水平方向の剪断力を向上させるため
に、上下に間隔を置いた多数の鋼板をゴム層内に埋設し
ている。2. Description of the Related Art Generally, in structures for civil engineering and construction, a structure for supporting an upper structure with respect to a lower structure can be found everywhere. Especially in river bridges and elevated roads, these structures will be supported and mounted on lower structures such as bridge piers, but by absorbing vertical or horizontal vibrations such as earthquakes and vehicle vibrations, To prevent damage to the structure itself or noise, or to absorb expansion and contraction of the upper structure such as bridge girders in the bridge axis direction (travel direction in terms of roads) due to temperature changes caused by seasons and weather. An elastic bearing device such as a rubber elastic body is provided between the upper structure and the lower structure. These elastic bearing devices are generally configured by interposing a rubber elastic body between a lower shoe member fixed to a lower structure such as a bridge pier and an upper shoe member fixed to an upper structure such as a bridge girder. To be done. Then, in order to improve the vertical compression resistance and the horizontal shearing force of this rubber elastic body, a large number of vertically spaced steel plates are embedded in the rubber layer.
【0003】そして、このような上部構造体および下部
構造体の間に弾性支承装置を新たに介設する際、あるい
は地震等の災害時に発生した損傷や老朽化により弾性支
承装置を交換するに際して、弾性支承装置を上部構造体
と下部構造体の間に適正に介設する必要があった。場合
によっては、橋桁等のクリープや乾燥収縮あるいは橋脚
等における温度変化による伸縮等、橋桁の長さ変化によ
るゴム弾性体の剪断変形を考慮して、ゴム弾性体に予め
逆方向の剪断変形を付与したりしていた。そのため、弾
性支承装置の上部構造体と下部構造体の間における適正
位置の判定が面倒となる他、適正位置への調整作業にジ
ャッキ等の大型機械を必要としていた。When an elastic bearing device is newly installed between such an upper structure and a lower structure, or when the elastic bearing device is replaced due to damage or aging caused by a disaster such as an earthquake, It was necessary to properly install the elastic bearing device between the upper structure and the lower structure. In some cases, in consideration of shear deformation of the rubber elastic body due to length change of the bridge girder, such as creep or dry shrinkage of the bridge girder or expansion / contraction due to temperature change at the bridge pier, etc. I was doing it. Therefore, determination of the proper position between the upper structure and the lower structure of the elastic support device is troublesome, and a large machine such as a jack is required for the adjustment work to the proper position.
【0004】そのようなことから、本件出願人は、図8
に示したような特開平11−303018号公報に開示
された仮固定用の弾性支承装置を提案した。これは、橋
脚101に固定される下沓104と橋桁102に固定さ
れる上沓105との間にゴム弾性体106を介設し、上
沓105と下沓104に橋軸方向に所定間隔をもって相
対向する傾斜スライド面116、117を設け、これら
のスライド面116、117の間に貫通孔を有する傾斜
部材118を上下方向スライド可能に介在させ、貫通孔
に挿通されるボルト119と雌螺子部材120によるね
じ込み度合いによってゴム弾性体106の橋軸方向の弾
性変位量を調整するように構成されたものである。From the above, the applicant of the present invention has
An elastic bearing device for temporary fixing disclosed in Japanese Patent Laid-Open No. 11-303018 has been proposed. A rubber elastic body 106 is interposed between a lower shoe 104 fixed to the bridge pier 101 and an upper shoe 105 fixed to the bridge girder 102, and the rubber shoe 106 is provided between the upper shoe 105 and the lower shoe 104 at predetermined intervals in the bridge axial direction. The inclined slide surfaces 116 and 117 facing each other are provided, and the inclined member 118 having a through hole is vertically slidably interposed between these slide surfaces 116 and 117, and the bolt 119 and the female screw member inserted into the through hole are inserted. The elastic displacement amount of the rubber elastic body 106 in the bridge axis direction is adjusted according to the degree of screwing by 120.
【0005】[0005]
【発明が解決しようとする課題】この本件出願人の提案
による仮固定用の弾性支承装置によって、ジャッキ等の
格別な大がかりの装置を必要とすることなく、部品点数
を少なくして、ボルトのねじ込み量の調整だけで、支承
体としてのゴム弾性体の橋軸方向変位量を調整すること
が可能となり、また、ボルトを緩めるだけの簡単な作業
で撤去することができる。上沓105と下沓104との
間に傾斜スライド面116、117と傾斜部材118と
を配設するために、下沓104からサイドブロック11
3を大きく立ち上げる構造改変を必要とする他、前記傾
斜スライド面116、117と傾斜部材118とによっ
て変位量を調整できるのは橋軸方向のみに限られた。The elastic bearing device for temporary fixing proposed by the applicant of the present application reduces the number of parts and allows screwing of bolts without the need for a particularly large device such as a jack. Only by adjusting the amount, it is possible to adjust the amount of displacement of the rubber elastic body as a support in the bridge axial direction, and it is possible to remove it by a simple operation of loosening the bolt. In order to dispose the inclined slide surfaces 116 and 117 and the inclined member 118 between the upper shoe 105 and the lower shoe 104, the side block 11 is moved from the lower shoe 104 to the side block 11.
In addition to requiring a structural modification to greatly raise 3, the displacement amount can be adjusted only in the bridge axis direction by the inclined slide surfaces 116 and 117 and the inclined member 118.
【0006】そこで、本発明は、前記提案の弾性支承装
置をさらに改良して、既設の固定ボルト孔等を利用して
容易に着脱でき、位置調整する相手部材の端面との間の
間隙をボルトのねじ込み量を調整することで、いずれの
方向の調整も簡便に行え、構造簡単で安価な支承位置調
整方法およびその調整治具を提供することを目的とす
る。In view of this, the present invention has further improved the above-mentioned proposed elastic bearing device so that it can be easily attached / detached using existing fixing bolt holes or the like, and the gap between the end surface of the mating member for position adjustment is bolted. It is an object of the present invention to provide a bearing position adjusting method having a simple structure and an inexpensive method, and an adjusting jig therefor, by easily adjusting the screwing amount in any direction.
【0007】[0007]
【課題を解決するための手段】このため本発明では、下
部構造体に固定される下沓部材と上部構造体に固定され
る上沓部材との間にゴム弾性体を介設させて上下構造体
間の伸縮を吸収することができるように構成された弾性
支承装置の支承位置調整方法において、前記ゴム弾性体
に固定された上沓部材あるいは下沓部材に調整治具を固
定するとともに、該調整治具に形成した起立ガイド部と
前記上部構造体あるいは下部構造体の取付板の端面との
間に介在させた調整金具の移動により、上部構造体ある
いは下部構造体に対する弾性支承装置の支承位置を適正
に調整することを特徴とする。また本発明は、下部構造
体に固定される下沓部材と上部構造体に固定される上沓
部材との間にゴム弾性体を介設させて上下構造体間の伸
縮を吸収することができるように構成された弾性支承装
置の上部構造体あるいは下部構造体への取付けあるいは
交換のための調整治具において、前記ゴム弾性体に固定
された上沓部材あるいは下沓部材に固定される沓固定部
と、該沓固定部から前記上部構造体あるいは下部構造体
の取付板の端面まで立ち上がるガイド部と、該ガイド部
と前記取付板の端面との間にこれらの間の所定の間隔を
調整する調整金具を配設したことを特徴とする。また本
発明は、前記ガイド部として、前記上部構造体あるいは
下部構造体の取付板の隅部に対応して直交する2つのガ
イド部を有することを特徴とする。また本発明は、前記
2つのガイド部の中の少なくとも一方のガイド部におけ
る前記取付板の端面に沿う両端部を該端面から離れる方
向の傾斜面に形成するとともに、対応して取付板の端面
との間に配設される一対の楔形状金具間に調整ボルトお
よびナットを配設したことを特徴とする。また本発明
は、前記ガイド部における傾斜面の傾斜角度を5〜45
度に形成するとともに、対応する前記楔形状金具におけ
る傾斜面の傾斜角度を同一角度に形成したことを特徴と
する。また本発明は、前記調整治具における沓固定部の
沓部材への固定が、固定ボルトにより着脱自在に構成さ
れたことを特徴とする。また本発明は、前記調整治具に
おける沓固定部の沓部材への固定が、沓部材と上部構造
体あるいは下部構造体の取付板との固定部毎に設置され
ることを特徴とするもので、これらを課題解決のための
手段とするものである。Therefore, according to the present invention, a rubber elastic body is interposed between a lower shoe member fixed to the lower structure and an upper shoe member fixed to the upper structure to form a vertical structure. In a method of adjusting a bearing position of an elastic bearing device configured to absorb expansion and contraction between bodies, an adjusting jig is fixed to an upper shoe member or a lower shoe member fixed to the rubber elastic body, and The support position of the elastic bearing device with respect to the upper structure or the lower structure by moving the adjusting metal fitting interposed between the upright guide portion formed on the adjusting jig and the end surface of the mounting plate of the upper structure or the lower structure. Is properly adjusted. Further, according to the present invention, a rubber elastic body is interposed between the lower shoe member fixed to the lower structure and the upper shoe member fixed to the upper structure to absorb expansion and contraction between the upper and lower structures. In an adjusting jig for attaching or replacing the elastic bearing device configured as described above to an upper structure or a lower structure, a sinker fixed to an upper shoe member or a lower shoe member fixed to the rubber elastic body. And a guide portion rising from the sinker fixing portion to the end surface of the mounting plate of the upper structure or the lower structure, and adjusting a predetermined distance between the guide portion and the end surface of the mounting plate. It is characterized in that adjustment metal fittings are provided. Further, the present invention is characterized in that, as the guide portion, there are two guide portions which are orthogonal to each other corresponding to a corner portion of a mounting plate of the upper structure or the lower structure. Further, according to the present invention, both end portions of at least one of the two guide portions along the end face of the mounting plate are formed as inclined surfaces in a direction away from the end face, and the end face of the mounting plate is correspondingly formed. The adjusting bolt and the nut are arranged between a pair of wedge-shaped metal fittings arranged between the two. In the present invention, the inclination angle of the inclined surface in the guide portion is 5 to 45.
It is characterized in that the inclination angles of the inclined surfaces of the corresponding wedge-shaped metal fittings are formed at the same angle. Further, the present invention is characterized in that the fixing member of the adjusting jig in the adjusting jig is fixed to the removing member by a fixing bolt. Further, the present invention is characterized in that the fixing of the lever fixing portion of the adjusting jig to the lever member is provided for each fixing portion of the lever member and the mounting plate of the upper structure or the lower structure. , These are the means for solving the problems.
【0008】[0008]
【発明の実施の形態】以下、本発明の支承位置調整方法
およびその調整治具の実施の形態を図面に基づいて詳細
に説明する。図1〜図5は本発明の第1実施の形態を示
すもので、図1は沓部材に固定する調整治具の全体斜視
図、図2(A)はゴム弾性体を介設した上部構造体と下
部構造体の橋軸直角方向の全体一部断面図、図2(B)
は同、橋軸方向の全体図、図3は図1の断面図、図4は
図1の平面図、図5は上沓部材および上部構造体(橋
桁)取付板に調整治具が固定された調整状態にある全体
平面図である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a bearing position adjusting method and an adjusting jig thereof according to the present invention will be described below in detail with reference to the drawings. 1 to 5 show a first embodiment of the present invention, FIG. 1 is an overall perspective view of an adjusting jig fixed to a gear member, and FIG. 2A is an upper structure in which a rubber elastic body is interposed. Figure 2 (B), which is a partial cross-sectional view of the body and the lower structure in the direction perpendicular to the bridge axis
Is an overall view in the bridge axis direction, FIG. 3 is a cross-sectional view of FIG. 1, FIG. 4 is a plan view of FIG. 1, and FIG. 5 is an upper jig member and an upper structure (bridge girder) mounting plate to which an adjusting jig is fixed. It is the whole top view in the adjusted state.
【0009】本発明は、下部構造体(取付板)2に固定
される下沓部材4と上部構造体(取付板)1に固定され
る上沓部材3との間にゴム弾性体5を介設させて上下構
造体間の伸縮を吸収することができるように構成された
弾性支承装置(3、4、5)の支承位置調整方法におい
て、前記ゴム弾性体5に固定された上沓部材3あるいは
下沓部材4に調整治具8を固定するとともに、該調整治
具8に形成した起立ガイド部10、11と前記上部構造
体あるいは下部構造体の取付板1あるいは2の端面との
間に介在させた調整金具13および14、15の移動に
より、上部構造体あるいは下部構造体に対する弾性支承
装置(3、4、5)の支承位置を適正に調整することを
特徴とする。According to the present invention, the rubber elastic body 5 is interposed between the lower lever member 4 fixed to the lower structure (mounting plate) 2 and the upper lever member 3 fixed to the upper structure (mounting plate) 1. In the method of adjusting the bearing position of the elastic bearing device (3, 4, 5) configured to be installed so as to absorb the expansion and contraction between the upper and lower structures, the upper shoe member 3 fixed to the rubber elastic body 5 is described. Alternatively, the adjusting jig 8 is fixed to the lower gear member 4, and between the upright guide portions 10 and 11 formed on the adjusting jig 8 and the end surface of the mounting plate 1 or 2 of the upper structure or the lower structure. It is characterized in that the support position of the elastic support device (3, 4, 5) with respect to the upper structure or the lower structure is properly adjusted by the movement of the intervening adjustment metal fittings 13, 14 and 15.
【0010】以下に詳述する。図2によって、橋脚と橋
桁を例とした上下構造体について説明すると、図2
(A)の左半分に示すように、図示省略のコンクリート
製等の下部構造体である橋脚内に埋設固定された下アン
カー7を植設した橋脚取付板2と、同様に図示省略のコ
ンクリート製等の上部構造体である橋桁内に埋設固定さ
れた上アンカー6を植設した橋桁取付板1との間に、上
下の沓部材3、4を介してゴム弾性体5が介設される。The details will be described below. Referring to FIG. 2, a description will be given of an upper and lower structure, which is an example of a pier and a bridge girder.
As shown in the left half of (A), a bridge pier mounting plate 2 in which a lower anchor 7 embedded and fixed in a bridge pier, which is a lower structure made of concrete or the like (not shown), is planted, and similarly made of concrete (not shown). The rubber elastic body 5 is interposed between the bridge girder mounting plate 1 in which the upper anchor 6 fixedly embedded in the bridge girder, which is an upper structure, is planted, with the upper and lower trough members 3 and 4 interposed therebetween.
【0011】図2(A)の右半分の断面図に示すよう
に、ゴム弾性体5の上下には上板5Aおよび下板5Bが
固着されていて、これらの各上下板5A、5Bはそれぞ
れ上下の沓部材3、4に固定ボルト21により予め固定
される。上下にこれら沓部材3、4が固定されたゴム弾
性体5が橋桁取付板1と橋脚取付板2との間に介設され
た後で、前記上沓部材3と橋桁取付板1との間の位置の
整合と、前記下沓部材4と橋脚取付板2との間の位置の
整合がなされてから、固定ボルト20により、上沓部材
3と橋桁取付板1、および下沓部材4と橋脚取付板2と
が本固定される。なお、前記ゴム弾性体5のゴム内に
は、図3に拡大して示すように、垂直方向の耐圧縮力お
よび水平方向の剪断力を向上させるために、上下に間隔
を置いた多数の鋼板5C、5C・・・がゴム層5D内に
埋設される。As shown in the right half sectional view of FIG. 2A, an upper plate 5A and a lower plate 5B are fixed to the upper and lower sides of the rubber elastic body 5, and these upper and lower plates 5A and 5B are respectively attached. It is previously fixed to the upper and lower trough members 3 and 4 with a fixing bolt 21. After the rubber elastic body 5 to which these shoe members 3 and 4 are fixed is interposed between the bridge girder mounting plate 1 and the bridge pier mounting plate 2, between the upper shoe member 3 and the bridge girder mounting plate 1. After the alignment of the positions of the upper gear member 3 and the bridge pier mounting plate 2 is performed, the upper bolt member 3 and the bridge girder mounting plate 1, and the lower gear member 4 and the bridge pier are fixed by the fixing bolts 20. The mounting plate 2 is permanently fixed. In addition, in the rubber of the rubber elastic body 5, as shown in an enlarged view in FIG. 3, a large number of steel plates vertically spaced to improve vertical compression resistance and horizontal shearing force. 5C, 5C ... Are embedded in the rubber layer 5D.
【0012】図1に示すように、本実施の形態の調整治
具8は、前記ゴム弾性体5に固定された上沓部材3ある
いは下沓部材4に固定される沓固定部9と、該沓固定部
9から前記上部構造体あるいは下部構造体の取付板1あ
るいは2の端面まで立ち上がるガイド部10、11と、
該ガイド部10、11と前記取付板1あるいは2の端面
との間にこれらの間の所定の間隔を調整する調整金具1
3および14、15を配設したものである。図示の例
は、上沓部材3と上部構造体である橋桁取付板1との間
の位置整合の調整例(下沓部材4と下部構造体である橋
脚取付板2との間の位置整合調整が完了あるいは不要と
された場合)である。つまり、本実施の形態では、前記
ガイド部として、前記上部構造体の取付板1の隅部に対
応して直交する2つのガイド部10および11を有する
ことを特徴とし、これらのガイド部10および11は図
示のように分離していてもよいし、補剛のために平面視
でL字形に繋がっていてもよい。As shown in FIG. 1, the adjusting jig 8 according to the present embodiment includes a lever fixing portion 9 fixed to the upper gear member 3 or the lower gear member 4 fixed to the rubber elastic body 5, and Guide parts 10 and 11 which stand up from the sinker fixing part 9 to the end surface of the mounting plate 1 or 2 of the upper structure or the lower structure,
Between the guide portions 10 and 11 and the end surface of the mounting plate 1 or 2, an adjusting metal fitting 1 for adjusting a predetermined space therebetween is provided.
3 and 14, 15 are arranged. The illustrated example is an example of adjusting the position alignment between the upper gear member 3 and the bridge girder mounting plate 1 that is the upper structure (position adjustment adjustment between the lower gear member 4 and the bridge pier mounting plate 2 that is the lower structure). Is completed or unnecessary). That is, the present embodiment is characterized in that it has, as the guide portion, two guide portions 10 and 11 which are orthogonal to each other corresponding to the corner portion of the mounting plate 1 of the upper structure. 11 may be separated as shown, or may be connected to each other in an L shape in a plan view for stiffening.
【0013】前記2つのガイド部の中の少なくとも一方
のガイド部、例えば橋軸直角方向(図1の右上方)のガ
イド部11における前記取付板1の端面に沿う両端部を
該端面から離れる方向の傾斜面12A、12Bに形成す
るとともに、対応して取付板1の端面との間に配設され
る一対の楔形状金具14、15間に調整ボルト16およ
びナット17、17が配設される。したがって、他方の
橋軸方向のガイド部10には調整金具として調整ボルト
13が螺合されて、その先端部が取付板1の橋軸方向の
端面のP点に作用するものである。前記ガイド部11に
おける傾斜面12A、12Bの傾斜角度は好適には5〜
45度に形成される。対応する前記楔形状金具14、1
5における傾斜面14A、15Aの傾斜角度も同一角度
に形成される。そして、これら楔形状金具14、15の
前記取付板1の橋軸直角方向の端面との作用面は平坦端
面14B、15Bに形成される。なお、ガイド部10側
も楔形状金具が配設される起立傾斜ガイド部とすること
もできる。At least one of the two guide portions, for example, a direction in which both end portions of the guide portion 11 in the direction perpendicular to the bridge axis (upper right in FIG. 1) along the end surface of the mounting plate 1 are separated from the end surface. Adjustment bolts 16 and nuts 17 and 17 are provided between the pair of wedge-shaped metal fittings 14 and 15 which are formed on the inclined surfaces 12A and 12B of the mounting plate 1 and correspondingly to the end surfaces of the mounting plate 1. . Therefore, the adjusting bolt 13 is screwed into the other guide portion 10 in the bridge axis direction as an adjusting metal fitting, and the tip end thereof acts on the point P of the end surface of the mounting plate 1 in the bridge axis direction. The inclination angle of the inclined surfaces 12A and 12B in the guide portion 11 is preferably 5 to 5.
It is formed at 45 degrees. The corresponding wedge-shaped metal fittings 14, 1
The inclined angles of the inclined surfaces 14A and 15A in 5 are also formed to be the same. The working surfaces of these wedge-shaped metal fittings 14 and 15 with the end surfaces of the mounting plate 1 in the direction perpendicular to the bridge axis are formed as flat end surfaces 14B and 15B. It should be noted that the guide portion 10 side may also be an upright inclined guide portion in which a wedge-shaped metal fitting is arranged.
【0014】図1、図3および図4に示すように、上部
構造体である橋桁取付板1と、弾性支承装置すなわち上
沓部材3との間に位置不整合が生じている場合、本来、
前記橋桁取付板1と上沓部材3とを連結固定する固定ボ
ルト20のための橋桁固定ボルト孔19A、19B間が
ずれて(図3および図4参照)いて、固定ボルト20を
通すことができない。したがって、図3および図4に示
す矢印のように、調整治具8を上沓部材3の下方からセ
ットして、その沓固定部9の沓固定ボルト孔18に挿入
した固定ボルト22を、前記上沓部材3における既設の
固定ボルト20のための橋桁固定ボルト孔19Bを利用
して螺合固定させるものである。このようにして、上沓
部材3における橋桁固定ボルト孔19Bを利用して複数
(図面右側に2個)の調整治具8を固定した状態を示し
たものが図5である。As shown in FIGS. 1, 3 and 4, when there is a positional mismatch between the bridge girder mounting plate 1 as the upper structure and the elastic support device, that is, the upper gear member 3, originally,
The bridge girder fixing bolt holes 19A and 19B for the fixing bolt 20 for connecting and fixing the bridge girder mounting plate 1 and the upper gear member 3 are displaced (see FIGS. 3 and 4), and the fixing bolt 20 cannot be passed through. . Therefore, as shown by the arrows in FIGS. 3 and 4, the adjusting jig 8 is set from below the upper gear member 3, and the fixing bolts 22 inserted into the gear fixing bolt holes 18 of the gear fixing portion 9 are The upper girder member 3 is screwed and fixed by using the bridge girder fixing bolt hole 19B for the existing fixing bolt 20. FIG. 5 shows a state in which a plurality of (two on the right side of the drawing) adjusting jigs 8 are fixed by using the bridge girder fixing bolt holes 19B in the upper gear member 3 in this way.
【0015】前記調整治具8における沓固定部9の沓部
材3への固定が、固定ボルト22により着脱自在に構成
され、また、好適には、調整治具8の沓部材への固定が
沓部材における既設の橋桁あるいは橋脚固定ボルト孔を
利用して螺合固定させるが、別途の固定孔を設けてもよ
いことは言うまでもない。また、好適には、前記調整治
具8の沓部材への固定は、沓部材3あるいは4と上部構
造体あるいは下部構造体の取付板1あるいは2との固定
部毎に設置される。つまり、図5において、複数の橋桁
固定ボルト孔19、19・・・の全てに調整治具8を固
定して位置調整がなされるなら、最も効果的に上部構造
体と弾性支承装置との間、すなわち橋桁取付板1と上沓
部材3との間の位置調整がなされる。The lever fixing portion 9 of the adjusting jig 8 is fixed to the lever member 3 by means of a fixing bolt 22, and preferably the adjusting jig 8 is fixed to the lever member. The existing bridge girders or bridge pier fixing bolt holes in the member are used for screwing and fixing, but it goes without saying that a separate fixing hole may be provided. Further, preferably, the adjusting jig 8 is fixed to the lever member at each fixing portion of the lever member 3 or 4 and the upper structure mounting plate 1 or 2 of the lower structure. That is, in FIG. 5, if the adjustment jig 8 is fixed to all of the plurality of bridge girder fixing bolt holes 19, 19 ... And the position adjustment is performed, it is most effective between the upper structure and the elastic bearing device. That is, the position adjustment between the bridge girder mounting plate 1 and the upper gear member 3 is performed.
【0016】図5において、2つの調整治具8における
各起立傾斜ガイド部11と橋桁取付板1における橋軸直
角方向端面との間の一対の楔形状金具14、15を、間
隔調整ボルト16、16による近接動作によって調整す
ることで、前記上沓部材3に対する橋桁取付板1におけ
る橋軸直角方向端面の平行および面一修正がなされる。
同時に、2つの調整治具8における各起立ガイド部10
と橋桁取付板1における橋軸方向端面との間を、起立ガ
イド部10に螺合された調整ボルト13、13のねじ込
み調整によって、同様に、上沓部材3に対する橋桁取付
板1における橋軸方向端面の平行および面一修正がなさ
れる。In FIG. 5, a pair of wedge-shaped metal fittings 14 and 15 between the upright tilt guide portions 11 of the two adjusting jigs 8 and the end surface of the bridge girder mounting plate 1 in the direction perpendicular to the bridge axis are attached to the space adjusting bolts 16, By adjusting by the proximity operation by 16, the end face in the direction perpendicular to the bridge axis of the bridge girder mounting plate 1 with respect to the upper gear member 3 is made parallel and flush.
At the same time, the standing guide portions 10 in the two adjusting jigs 8
Similarly, by adjusting the screwing of the adjusting bolts 13, 13 screwed into the standing guide portion 10 between the bridge girder mounting plate 1 and the end face in the bridge axial direction of the bridge girder mounting plate 1, the bridge shaft direction of the bridge girder mounting plate 1 with respect to the upper gear member 3 is similarly obtained. Parallel and flush modifications of the end faces are made.
【0017】図6は本発明の第2実施の形態を示すもの
で、沓部材に固定する調整治具の全体斜視図である。本
実施の形態のものは、調整治具8が前記第1実施の形態
のものの起立傾斜ガイド部11のみから構成されたもの
である。本実施の形態のものでは、沓部材に対する構造
体取付板の位置調整機能は、起立傾斜ガイド部11が配
設された構造体取付板の端面側のみであるため、少なく
とも、図6のように橋軸直角方向側に起立傾斜ガイド部
11が位置するように固定される場合は、橋軸方向の端
面側(図5において橋桁取付板1の上下の端面側)にも
本実施の形態の調整治具8を同時に固定して位置調整を
行う必要がある。かくして、より簡素な構造の調整治具
によって、上部構造体と弾性支承装置との間の位置調整
が可能となる。FIG. 6 shows a second embodiment of the present invention, and is an overall perspective view of an adjusting jig fixed to a gear member. In the present embodiment, the adjusting jig 8 is composed of only the upright tilt guide portion 11 of the first embodiment. In the present embodiment, since the position adjusting function of the structure mounting plate with respect to the lever member is only on the end face side of the structure mounting plate in which the upright tilt guide portion 11 is arranged, at least as shown in FIG. When the upright inclination guide portion 11 is fixed so as to be located on the side orthogonal to the bridge axis, the adjustment of the present embodiment is also performed on the end surface side in the bridge axis direction (upper and lower end surface sides of the bridge girder mounting plate 1 in FIG. 5). It is necessary to fix the jig 8 at the same time and adjust the position. Thus, the adjustment jig having a simpler structure enables the position adjustment between the upper structure and the elastic support device.
【0018】図7は本発明の第3実施の形態を示すもの
で、沓部材に固定する調整治具の全体斜視図である。本
実施の形態のものは、調整治具8が前記第1実施の形態
のものの平板状の起立ガイド部10のみから構成された
ものである。本実施の形態のものも、沓部材に対する構
造体取付板の位置調整機能は、調整治具8におけるより
簡素な構造の平板状の起立ガイド部10が配設された構
造体取付板の端面側のみであるため、少なくとも、図7
のように橋軸方向側に起立傾斜ガイド部10が位置する
ように固定される場合は、橋軸直角方向の端面側(図5
において橋桁取付板1の左右の端面側)にも本実施の形
態の調整治具8を同時に固定して位置調整を行う必要が
ある。かくして、さらに簡素な構造の調整治具によっ
て、上部構造体と弾性支承装置との間の位置調整が可能
となる。FIG. 7 shows a third embodiment of the present invention and is an overall perspective view of an adjusting jig fixed to a gear member. In the present embodiment, the adjusting jig 8 is composed only of the flat plate-shaped standing guide portion 10 of the first embodiment. Also in the present embodiment, the position adjusting function of the structure mounting plate with respect to the lever member is the end face side of the structure mounting plate in which the flat plate-shaped standing guide portion 10 of the adjustment jig 8 having a simpler structure is arranged. At least, as shown in FIG.
When the upright tilt guide portion 10 is fixed so as to be positioned on the bridge axis side as shown in FIG.
In the above, it is necessary to simultaneously fix the adjustment jigs 8 of the present embodiment to the left and right end face sides of the bridge girder mounting plate 1 to adjust the position. Thus, the position adjustment between the upper structure and the elastic support device can be performed by the adjusting jig having a simpler structure.
【0019】以上、本発明の実施の形態を説明してきた
が、本発明の趣旨の範囲内にて、上部構造体および下部
構造体ならびに沓部材の形状(実施の形態のもののよう
な方形のみならず、円形、多角形等でもよい。好適には
構造体取付板と沓部材の形状は同一寸法であることが望
ましいが、同一寸法でなくても適用は可能である。)、
種類(橋脚と橋桁の他、道路と基礎、建築物と基礎等に
も適用可能である)、ゴム弾性体の形状、形式、構造体
と沓部材との固定形態、沓部材とゴム弾性体との固定形
態、調整治具の形状(前記構造体取付板および沓部材の
形状に適応させて一対の起立ガイド部のなす平面視の角
度が直角でない場合もあり得る。)、取付形態(好適に
は、既設の固定ボルト孔を利用する他、これを取り巻く
位置にて複数の取付ボルトにて固定される。また、調整
治具を沓部材でなく構造体取付板側に固定することも本
発明の範疇である。)、調整金具の形状、形式および調
整治具への設置形態(一対の楔形状金具を起立傾斜ガイ
ド部下部の段差部に載置して落下が防止されるようにし
てもよい。)等については適宜採用できるものである。Although the embodiments of the present invention have been described above, the shapes of the upper structure, the lower structure, and the gear members (in the case of only a square like the embodiment) are within the scope of the gist of the present invention. Instead, it may be circular, polygonal, etc. It is preferable that the structure mounting plate and the trough member have the same size, but they can be applied even if they do not have the same size.),
Type (applicable to piers and bridge girders, roads and foundations, buildings and foundations, etc.), shape and type of rubber elastic body, fixing form of structure and truss member, trough member and rubber elastic body Of the fixing jig, the shape of the adjusting jig (the angle in plan view formed by the pair of upright guide portions may not be right angle in conformity with the shapes of the structure attaching plate and the trough member), and the attaching manner (preferably In addition to using the existing fixing bolt holes, the fixing jig is fixed by a plurality of mounting bolts at positions surrounding the fixing bolt holes.It is also possible to fix the adjusting jig to the structure mounting plate side instead of the recess member. The shape and type of the adjustment metal fittings and the installation form on the adjustment jig (even if a pair of wedge-shaped metal fittings are placed on the stepped portion under the upright tilt guide portion to prevent falling). Good)) and the like can be appropriately adopted.
【0020】[0020]
【発明の効果】以上詳細に説明してきたように、本発明
によれば、下部構造体に固定される下沓部材と上部構造
体に固定される上沓部材との間にゴム弾性体を介設させ
て上下構造体間の伸縮を吸収することができるように構
成された弾性支承装置の支承位置調整方法において、前
記ゴム弾性体に固定された上沓部材あるいは下沓部材に
調整治具を固定するとともに、該調整治具に形成した起
立ガイド部と前記上部構造体あるいは下部構造体の取付
板の端面との間に介在させた調整金具の移動により、上
部構造体あるいは下部構造体に対する弾性支承装置の支
承位置を適正に調整することにより、構造体および弾性
支承装置の構造改変を伴うことなく、既設の固定ボルト
孔等を利用して容易に調整治具を固定して、ボルトのね
じ込み量の調整という簡便かつ単純な作業により、構造
体に対する弾性支承装置の支承位置を適正に調整するこ
とが可能となる。As described above in detail, according to the present invention, the rubber elastic body is interposed between the lower shoe member fixed to the lower structure and the upper shoe member fixed to the upper structure. In a method for adjusting a bearing position of an elastic bearing device configured to absorb expansion and contraction between upper and lower structures, an adjusting jig is attached to the upper shoe member or the lower shoe member fixed to the rubber elastic body. Elasticity with respect to the upper structure or the lower structure is fixed by moving the adjusting metal fitting interposed between the upright guide portion formed on the adjusting jig and the end surface of the mounting plate of the upper structure or the lower structure. By properly adjusting the support position of the support device, the adjustment jig can be easily fixed using the existing fixing bolt holes without screwing the structure and structure of the elastic support device, and the bolts can be screwed in. Quantity adjustment and Cormorant by easy and simple work, it becomes possible to properly adjust the bearing position of the elastic support device for the structure.
【0021】また、調整治具として、前記ゴム弾性体に
固定された上沓部材あるいは下沓部材に固定される沓固
定部と、該沓固定部から前記上部構造体あるいは下部構
造体の取付板の端面まで立ち上がるガイド部と、該ガイ
ド部と前記取付板の端面との間にこれらの間の所定の間
隔を調整する調整金具を配設したことにより、沓固定部
による確実な固定の基で、ガイド部を利用した調整金具
の確実かつ強力な調整機能により、適切に構造体と弾性
支承装置との間の位置調整ができる。さらに、前記ガイ
ド部として、前記上部構造体あるいは下部構造体の取付
板の隅部に対応して直交する2つのガイド部を有する場
合は、1つの調整治具のみの固定で、互いに直交する方
向の端面の位置調整を同時にできて、調整治具の固定部
位置が少なくて済む。Further, as an adjusting jig, a shoe fixing portion fixed to the upper shoe member or the lower shoe member fixed to the rubber elastic body, and a mounting plate of the upper structure or the lower structure from the shoe fixing portion. By arranging a guide part that rises to the end face of the and an adjusting metal fitting that adjusts a predetermined gap between the guide part and the end face of the mounting plate, With the reliable and strong adjusting function of the adjusting fitting using the guide portion, it is possible to appropriately adjust the position between the structure and the elastic supporting device. Further, when the guide portion has two guide portions that are orthogonal to each other corresponding to the corners of the mounting plate of the upper structure or the lower structure, only one adjustment jig is fixed, and the directions are orthogonal to each other. The position of the end face of the can be adjusted at the same time, and the position of the fixing part of the adjusting jig can be reduced.
【0022】さらにまた、前記2つのガイド部の中の少
なくとも一方のガイド部における前記取付板の端面に沿
う両端部を該端面から離れる方向の傾斜面に形成すると
ともに、対応して取付板の端面との間に配設される一対
の楔形状金具間に調整ボルトおよびナットを配設した場
合は、傾斜面を利用した倍力カム機能により、より強力
な調整機能を付与することができる。また、前記ガイド
部における傾斜面の傾斜角度を5〜45度に形成すると
ともに、対応する前記楔形状金具における傾斜面の傾斜
角度を同一角度に形成した場合は、適正な倍力カム機構
を構成して適度な調整力のもとに、構造体と弾性支承装
置との間の位置調整ができる。さらに、前記調整治具に
おける沓固定部の沓部材への固定が、固定ボルトにより
着脱自在に構成された場合は、既設の固定ボルト等を利
用して容易に固定された調整治具の調整終了後には、容
易にこれを取り外せるので、構造体に何らの痕跡も残ら
ず見映えが良い他、錆等を発することなく調整治具の使
い回しができて経済的である。Furthermore, both end portions of at least one of the two guide portions along the end surface of the mounting plate are formed as inclined surfaces away from the end surface, and the end surface of the mounting plate is correspondingly formed. When the adjusting bolt and the nut are arranged between the pair of wedge-shaped metal fittings arranged between and, a more powerful adjusting function can be given by the boosting cam function utilizing the inclined surface. Further, when the inclination angle of the inclined surface of the guide portion is formed to 5 to 45 degrees and the inclination angle of the inclined surface of the corresponding wedge-shaped metal fitting is formed to be the same angle, an appropriate booster cam mechanism is configured. Then, the position between the structure and the elastic support device can be adjusted with an appropriate adjusting force. Furthermore, when the fixing member of the adjusting jig in the adjusting jig is configured to be attachable / detachable by the fixing bolt, the adjustment jig can be easily fixed by using the existing fixing bolt or the like. Since it can be easily removed later, it does not leave any traces on the structure and looks good, and the adjustment jig can be reused without generating rust and is economical.
【0023】さらにまた、前記調整治具における沓固定
部の沓部材への固定が、沓部材と上部構造体あるいは下
部構造体の取付板との固定部毎に設置される場合は、や
や多くの調整治具の数を必要とするが、調整精度が向上
して調整時間が少ないこともあり得る。かくして、本発
明によれば、既設の固定ボルト孔等を利用して容易に着
脱でき、位置調整する相手部材の端面との間の間隙をボ
ルトのねじ込み量を調整することで、いずれの方向の調
整も簡便に行え、構造簡単で安価な支承位置調整方法お
よびその調整治具が提供される。Further, when fixing the lever fixing portion of the adjusting jig to the lever member is provided for each fixing portion of the lever member and the mounting plate of the upper structure or the lower structure, a slightly large number is required. Although the number of adjustment jigs is required, the adjustment accuracy may be improved and the adjustment time may be short. Thus, according to the present invention, it is possible to easily attach / detach using the existing fixing bolt hole or the like, and adjust the screwing amount of the bolt to adjust the gap between the end surface of the counterpart member for position adjustment in any direction. There is provided a bearing position adjusting method and an adjusting jig therefor, which can be easily adjusted, have a simple structure, and are inexpensive.
【図1】本発明の第1実施の形態を示すもので、沓部材
に固定する調整治具の全体斜視図である。FIG. 1 shows the first embodiment of the present invention and is an overall perspective view of an adjusting jig fixed to a gear member.
【図2】同、図2(A)はゴム弾性体を介設した上部構
造体と下部構造体の橋軸直角方向の全体一部断面図、図
2(B)は同、橋軸方向の全体図である。FIG. 2 (A) is a partial cross-sectional view of an upper structure and a lower structure in which a rubber elastic body is interposed in a direction perpendicular to the bridge axis, and FIG. It is an overall view.
【図3】同、図1の断面図である。3 is a sectional view of FIG.
【図4】同、図1の平面図である。FIG. 4 is a plan view of FIG.
【図5】同、上沓部材および上部構造体(橋桁)取付板
に調整治具が固定された調整状態にある全体平面図であ
る。FIG. 5 is an overall plan view of the upper gear member and an upper structure (bridge girder) attachment plate in an adjustment state in which an adjustment jig is fixed thereto.
【図6】本発明の第2実施の形態を示すもので、沓部材
に固定する調整治具の全体斜視図である。FIG. 6 shows a second embodiment of the present invention, and is an overall perspective view of an adjusting jig fixed to a gear member.
【図7】本発明の第3実施の形態を示すもので、沓部材
に固定する調整治具の全体斜視図である。FIG. 7 shows a third embodiment of the present invention and is an overall perspective view of an adjusting jig fixed to a gear member.
【図8】従来の弾性支承装置の説明図である。FIG. 8 is an explanatory view of a conventional elastic bearing device.
1 橋桁(上部構造体)取付板 2 橋脚(下部構造体)取付板 3 上沓部材(弾性支承装置) 4 下沓部材(弾性支承装置) 5 ゴム弾性体(弾性支承装置) 5A 上板 5B 下板 5C 鋼板 5D ゴム層 6 上アンカー 7 下アンカー 8 調整治具 9 沓固定部 10 起立ガイド部 11 起立傾斜ガイド部 12A 第1傾斜面 12B 第2傾斜面 13 調整ボルト(調整金具) 14 第1楔形状金具(調整金具) 14A 傾斜面 14B 平坦端面 15 第2楔形状金具(調整金具) 15A 傾斜面 15B 平坦端面 16 間隔調整ボルト 17 間隔調整ナット 18 沓固定ボルト孔 19A 橋桁固定ボルト孔 19B 橋桁固定ボルト孔 20 橋桁固定ボルト 21 ゴム支承体固定ボルト 22 調整治具固定ボルト 1 Bridge girder (upper structure) mounting plate 2 Bridge pier (lower structure) mounting plate 3 Upper shoe member (elastic bearing device) 4 Lower shoe member (elastic bearing device) 5 Rubber elastic body (elastic support device) 5A upper plate 5B lower plate 5C steel plate 5D rubber layer 6 Upper anchor 7 Lower anchor 8 Adjustment jig 9 Crane fixing part 10 Standing guide 11 Upright tilt guide 12A First inclined surface 12B Second inclined surface 13 Adjustment bolt (adjustment metal fitting) 14 1st wedge shape metal fittings (adjustment metal fittings) 14A inclined surface 14B Flat end face 15 Second wedge-shaped metal fitting (adjustment metal fitting) 15A inclined surface 15B flat end face 16 Spacing adjustment bolt 17 Spacing adjustment nut 18 Bolt fixing bolt hole 19A Bridge girder fixing bolt hole 19B Bridge girder fixing bolt hole 20 Bridge girder fixing bolt 21 Rubber support fixing bolts 22 Adjustment jig fixing bolt
Claims (7)
構造体に固定される上沓部材との間にゴム弾性体を介設
させて上下構造体間の伸縮を吸収することができるよう
に構成された弾性支承装置の支承位置調整方法におい
て、前記ゴム弾性体に固定された上沓部材あるいは下沓
部材に調整治具を固定するとともに、該調整治具に形成
した起立ガイド部と前記上部構造体あるいは下部構造体
の取付板の端面との間に介在させた調整金具の移動によ
り、上部構造体あるいは下部構造体に対する弾性支承装
置の支承位置を適正に調整することを特徴とする支承位
置調整方法。1. A rubber elastic body is interposed between a lower shoe member fixed to the lower structure and an upper shoe member fixed to the upper structure to absorb expansion and contraction between the upper and lower structures. In the method for adjusting the bearing position of the elastic bearing device configured as described above, an adjusting jig is fixed to the upper gear member or the lower gear member fixed to the rubber elastic body, and an upright guide portion formed on the adjusting jig is used. It is characterized in that the support position of the elastic support device with respect to the upper structure or the lower structure is properly adjusted by moving the adjusting metal fitting interposed between the upper structure or the lower structure and the end surface of the mounting plate. Support position adjustment method.
構造体に固定される上沓部材との間にゴム弾性体を介設
させて上下構造体間の伸縮を吸収することができるよう
に構成された弾性支承装置の上部構造体あるいは下部構
造体への取付けあるいは交換のための調整治具におい
て、前記ゴム弾性体に固定された上沓部材あるいは下沓
部材に固定される沓固定部と、該沓固定部から前記上部
構造体あるいは下部構造体の取付板の端面まで立ち上が
るガイド部と、該ガイド部と前記取付板の端面との間に
これらの間の所定の間隔を調整する調整金具を配設した
ことを特徴とする支承位置調整治具。2. A rubber elastic body is interposed between a lower shoe member fixed to the lower structure and an upper shoe member fixed to the upper structure to absorb expansion and contraction between the upper and lower structures. In an adjusting jig for attaching or replacing the elastic bearing device configured as described above to an upper structure or a lower structure, a sinker fixed to an upper shoe member or a lower shoe member fixed to the rubber elastic body. And a guide portion rising from the sinker fixing portion to the end surface of the mounting plate of the upper structure or the lower structure, and adjusting a predetermined distance between the guide portion and the end surface of the mounting plate. A support position adjusting jig, which is provided with an adjusting metal fitting.
るいは下部構造体の取付板の隅部に対応して直交する2
つのガイド部を有することを特徴とする請求項2に記載
の支承位置調整治具。3. The guide portion, which is orthogonal to the corner of the mounting plate of the upper structure or the lower structure, corresponding to 2
The bearing position adjusting jig according to claim 2, wherein the jig has two guide portions.
方のガイド部における前記取付板の端面に沿う両端部を
該端面から離れる方向の傾斜面に形成するとともに、対
応して取付板の端面との間に配設される一対の楔形状金
具間に調整ボルトおよびナットを配設したことを特徴と
する請求項2または3に記載の支承位置調整治具。4. The both end portions of at least one of the two guide portions along the end surface of the mounting plate are formed as inclined surfaces in a direction away from the end surface, and the end surface of the mounting plate is correspondingly formed. The support position adjusting jig according to claim 2 or 3, wherein an adjusting bolt and a nut are arranged between a pair of wedge-shaped metal fittings arranged between the two.
を5〜45度に形成するとともに、対応する前記楔形状
金具における傾斜面の傾斜角度を同一角度に形成したこ
とを特徴とする請求項4に記載の支承位置調整治具。5. The inclination angle of the inclined surface of the guide portion is formed to be 5 to 45 degrees, and the inclination angles of the inclined surfaces of the corresponding wedge-shaped metal fittings are formed to be the same angle. Bearing position adjustment jig described in.
への固定が、固定ボルトにより着脱自在に構成されたこ
とを特徴とする請求項2ないし5のいずれかに記載の支
承位置調整治具。6. The bearing position adjusting jig according to claim 2, wherein fixing of the gear fixing portion of the adjusting jig to the gear member is configured so as to be detachable by a fixing bolt. Ingredient
への固定が、沓部材と上部構造体あるいは下部構造体の
取付板との固定部毎に設置されることを特徴とする請求
項1ないし6に記載の支承位置調整方法あるいは支承位
置調整治具。7. The adjusting jig is fixed to the lever member at the lever fixing portion at each fixing portion between the lever member and the mounting plate of the upper structure or the lower structure. A method for adjusting a bearing position or a jig for adjusting a bearing position according to any one of 1 to 6.
Priority Applications (1)
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---|---|---|---|
JP2002094695A JP2003293315A (en) | 2002-03-29 | 2002-03-29 | Bearing position adjusting method and its adjusting jig |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002094695A JP2003293315A (en) | 2002-03-29 | 2002-03-29 | Bearing position adjusting method and its adjusting jig |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2003293315A true JP2003293315A (en) | 2003-10-15 |
Family
ID=29238568
Family Applications (1)
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---|---|---|---|
JP2002094695A Pending JP2003293315A (en) | 2002-03-29 | 2002-03-29 | Bearing position adjusting method and its adjusting jig |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100975617B1 (en) | 2007-12-24 | 2010-08-17 | 주식회사 서영엔지니어링 | The installation assist device of the bridge bearing |
JP2013127197A (en) * | 2011-11-17 | 2013-06-27 | Tokyo Fabric Kogyo Kk | Bridge structure mounting device and installation method of the same |
CN109972522A (en) * | 2019-03-07 | 2019-07-05 | 中交二航局第四工程有限公司 | A kind of adjustable pile equipment method of gravity type |
-
2002
- 2002-03-29 JP JP2002094695A patent/JP2003293315A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100975617B1 (en) | 2007-12-24 | 2010-08-17 | 주식회사 서영엔지니어링 | The installation assist device of the bridge bearing |
JP2013127197A (en) * | 2011-11-17 | 2013-06-27 | Tokyo Fabric Kogyo Kk | Bridge structure mounting device and installation method of the same |
CN109972522A (en) * | 2019-03-07 | 2019-07-05 | 中交二航局第四工程有限公司 | A kind of adjustable pile equipment method of gravity type |
CN109972522B (en) * | 2019-03-07 | 2020-10-23 | 中交二航局第四工程有限公司 | Self-falling type adjustable box girder installation method |
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