JP2007162342A - Differential settlement correctable bearing structure and differential settlement correcting method for structure - Google Patents

Differential settlement correctable bearing structure and differential settlement correcting method for structure Download PDF

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JP2007162342A
JP2007162342A JP2005360286A JP2005360286A JP2007162342A JP 2007162342 A JP2007162342 A JP 2007162342A JP 2005360286 A JP2005360286 A JP 2005360286A JP 2005360286 A JP2005360286 A JP 2005360286A JP 2007162342 A JP2007162342 A JP 2007162342A
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fitting
plate
fixed
height adjustment
bed plate
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JP4475536B2 (en
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Yuichi Aida
合田裕一
Hideaki Haino
配野英朗
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Kaimon KK
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<P>PROBLEM TO BE SOLVED: To provide a differential settlement correctable bearing structure for a structure, and a differential settlement correcting method for the structure simple in structure, facilitating differential settlement correcting work and low in cost. <P>SOLUTION: In the differential settlement correctable bearing structure 1 for the structure, a fitting protrusion 9 is formed at the center of a base plate 7 fixed to a lower structure 3, and a fitting recessed part 6 fitted to the fitting protrusion 9 is formed at the center of a bed plate 5 fixed to an upper structure 2. Height adjusting plates 10 each having a fitting recessed part 12 at the lower face so as to be fitted to the fitting protrusion 9 of the base plate 7 and having a fitting protrusion 11 at the upper face so as to be fitted to the fitting recessed part 6 formed at the bed plate 5 are laminated in the number corresponding to the amount of differential settlement. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、建築物、塔状構造物、橋梁等の各種構造物を支持するための支承部の構造、特に不等沈下の修正が可能な支承部構造と、構造物の不等沈下修正工法に関する。   The present invention relates to a structure of a support part for supporting various structures such as buildings, tower-like structures, bridges, in particular, a support part structure capable of correcting uneven settlement, and an uneven settlement correction method for the structure. About.

特開平５−１５６６５７号公報には、構造物の基礎が不等沈下した場合、構造物を水平状態に保つために高さ調整として平板状の鋼板スペーサ又は非圧縮性コンクリート板スペーサを下部構造物と上部構造物の間に挿入する技術が開示されている。また、特開昭５７−１２３３４６号公報には、構造物の基礎が不等沈下した場合、構造物を水平状態に保つために、下部構造物と上部構造物の間に、傾斜方向を逆にした上部傾斜板と下部傾斜板の両傾斜面を当接配置し、上部傾斜板に対して、下部傾斜板を移動させ、上部傾斜板に載置した上部構造物を下部構造物に対して昇降移動させる不等沈下修正方法が開示されている。さらに、特開２００２−４７６７８号公報には、下部構造物と上部構造物との間の支承部に油圧機構を配置し、不等沈下を修正する技術が開示されている。
特開平５−１５６６５７号公報 特開２００１−３３１４号公報 特開２００２−４７６７８号公報 In JP-A-5-156657, when the foundation of a structure is sunk unevenly, a flat steel plate spacer or an incompressible concrete plate spacer is used as a substructure to adjust the height in order to keep the structure horizontal. And a technique for inserting between the upper structure and the upper structure is disclosed. Japanese Patent Application Laid-Open No. 57-123346 discloses that when the foundation of a structure is sunk unevenly, the inclination direction is reversed between the lower structure and the upper structure in order to keep the structure horizontal. The inclined surfaces of the upper inclined plate and the lower inclined plate are arranged in contact with each other, the lower inclined plate is moved relative to the upper inclined plate, and the upper structure placed on the upper inclined plate is moved up and down with respect to the lower structure. An unequal settlement correction method for moving is disclosed. Furthermore, Japanese Patent Application Laid-Open No. 2002-47678 discloses a technique for correcting uneven settlement by arranging a hydraulic mechanism at a support portion between a lower structure and an upper structure.
JP-A-5-156657 JP 2001-3314 A JP 2002-47678 A

しかしながら、平板状のスペーサを支承部に挿入する従来技術では、平板状のスペーサの水平方向の移動を阻止するために、複数のボルト等で固定しなければならず、ボルト孔との位置合わせ等の作業が多く、大掛かりな作業が必要になるという問題を有する。また、上部傾斜板と下部傾斜板の楔作用による昇降は、下部傾斜板の水平移動量に対して昇降量が少なく、広い作業空間を必要とし、さらに、上下傾斜板の昇降後の固定に問題があり、安全性の面で問題を有する。さらに、支承部に油圧機構を配置する従来技術においては、支承部の構造が複雑になるという問題と、支承部に長期間油圧機構を配置しておくので、油圧機構のメンテナンスが必要になり、高コストになるという問題を有する。   However, in the prior art in which a flat spacer is inserted into the support portion, in order to prevent the horizontal movement of the flat spacer, it must be fixed with a plurality of bolts, etc. Therefore, there is a problem that a large-scale work is required. In addition, the lifting and lowering of the upper and lower inclined plates by the wedge action requires less work than the horizontal movement amount of the lower inclined plate, requires a large work space, and is problematic in fixing the upper and lower inclined plates after raising and lowering. There is a problem in terms of safety. Furthermore, in the prior art in which the hydraulic mechanism is arranged in the support part, the problem that the structure of the support part becomes complicated, and the hydraulic mechanism is arranged in the support part for a long time, so maintenance of the hydraulic mechanism is necessary, There is a problem of high cost.

本発明は、前記課題を解決する、構造が簡易で、不等沈下の修正作業が容易であり、かつ、コストの安価な構造物の不等沈下修正可能支承構造と構造物の不等沈下修正工法を提供することを目的とする。   The present invention solves the above-mentioned problems, has a simple structure, is easy to correct unequal subsidence, and is capable of correcting unequal subsidence of a structure at a low cost. The purpose is to provide a method of construction.

本第１発明は、前記課題を解決するために、構造物の不等沈下修正可能支承構造において、下部構造物に固定されるベースプレートの中央部に嵌合凸部を形成し、上部構造物に固定されるベッドプレートの中央部に前記嵌合凸部と嵌合する嵌合凹部を形成した構造物の支承構造において、下面に前記ベースプレートの嵌合凸部と嵌合する嵌合凹部を形成し、上面に前記ベッドプレートに形成した嵌合凹部と嵌合する嵌合凸部を形成した高さ調整用プレートを不等沈下量に応じた枚数積層することを特徴とする。   In order to solve the above-mentioned problem, the present invention provides a support structure capable of correcting uneven settlement of a structure by forming a fitting protrusion at the center of a base plate fixed to the lower structure, In a support structure for a structure in which a fitting concave portion that fits with the fitting convex portion is formed in the center portion of the fixed bed plate, a fitting concave portion that fits with the fitting convex portion of the base plate is formed on the lower surface. In addition, a number of height adjustment plates, each having a fitting convex portion to be fitted with the fitting concave portion formed on the bed plate, are stacked on the upper surface according to the amount of uneven settlement.

本第２発明は、本第１発明の構造物の不等沈下修正可能支承構造において、前記ベースプレート、ベッドプレート及び高さ調整プレートに形成される嵌合凸部と嵌合凹部の断面形状を円形又は矩形とすることを特徴とする。   The second aspect of the invention is a support structure capable of correcting uneven settlement of the structure of the first aspect of the invention, wherein the fitting protrusions and the fitting depressions formed on the base plate, the bed plate and the height adjustment plate have a circular cross-sectional shape. Or it is set as a rectangle.

本第３発明は、本第１発明の構造物の不等沈下修正可能支承構造において、前記ベースプレート、ベッドプレート及び高さ調整プレートに形成される嵌合凸部と嵌合凹部の形状を上方に行くに従い小径となるように形成することを特徴とする。   According to the third aspect of the present invention, in the support structure capable of correcting uneven settlement of the structure according to the first aspect of the invention, the shape of the fitting convex portion and the fitting concave portion formed on the base plate, the bed plate, and the height adjusting plate is set upward. It is characterized by being formed to have a smaller diameter as it goes.

本第４発明は、本第１〜第３発明のいずれかの構造物の不等沈下修正可能支承構造において、前記高さ調整プレートの対向する側縁に係止ボルトが挿通する切り欠き部を形成することを特徴とする。   In the fourth aspect of the present invention, there is provided a non-uniform subsidence correcting support structure for the structure according to any one of the first to third aspects of the present invention, wherein a notch portion through which a locking bolt is inserted into the opposite side edge of the height adjustment plate is provided. It is characterized by forming.

本第５発明は、本第１〜第４発明のいずれかの構造物の不等沈下修正可能支承構造において、前記上下構造物間の空間が狭い場合、前記上部構造物に固定されるベッドプレートの対向する側縁に上部構造物をジャッキアップするための治具を固定するための嵌合孔を形成することを特徴とする。   The fifth aspect of the present invention relates to a non-uniform settlement correctable support structure for a structure according to any one of the first to fourth aspects of the present invention, wherein the bed plate is fixed to the upper structure when the space between the upper and lower structures is narrow. A fitting hole for fixing a jig for jacking up the upper structure is formed in the opposite side edges of the upper portion.

本第６発明は、本第１〜第５発明のいずれかの構造物の不等沈下修正可能支承構造の不等沈下修正工法において、上部構造物を下部構造に対してジャッキアップし、下部構造物に固定されたベースプレート上に、下部構造物の不等沈下量に応じた枚数の高さ調整プレートを嵌合凸部と嵌合凹部とを嵌合させて積層し、その後、上部構造物を下降させ、上部構造物に固定したベッドプレートの嵌合凹部と、最上位の高さ調整プレートの嵌合凸部を嵌合することを特徴とする。   The sixth aspect of the present invention is a method for correcting uneven settlement of a structure according to any one of the first to fifth inventions, wherein the upper structure is jacked up with respect to the lower structure. On the base plate fixed to the object, a number of height adjustment plates corresponding to the amount of uneven settlement of the lower structure are stacked with the fitting convex part and the fitting concave part being fitted, and then the upper structure is The fitting concave portion of the bed plate which is lowered and fixed to the upper structure and the fitting convex portion of the uppermost height adjustment plate are fitted.

本発明の下部構造物に固定されるベースプレートの中央部に嵌合凸部を形成し、上部構造物に固定されるベッドプレートの中央部に前記嵌合凸部と嵌合する嵌合凹部を形成した構造物の支承構造において、下面に前記ベースプレートの嵌合凸部と嵌合する嵌合凹部を形成し、上面に前記ベッドプレートに形成した嵌合凹部と嵌合する嵌合凸部を形成した高さ調整用プレートを不等沈下量に応じた枚数積層する構成により、下部構造、上部構造及び高さ調整用プレートが嵌合凸部と嵌合凹部の嵌合により高さ調整用プレートを積層する際の位置合わせが不要となり、水平方向の移動阻止のためのボルトが不要になるので、不等沈下修正作業が容易であり、低コストの構造物の不等沈下修正可能支承構造とすることができる。
ベースプレート、ベッドプレート及び高さ調整プレートに形成される嵌合凸部と嵌合凹部の断面形状を円形又は矩形とする構成により、嵌合部の形状が単純なので製造の際の成形が容易になる共に、嵌合の際の位置合わせが容易となる。
ベースプレート、ベッドプレート及び高さ調整プレートに形成される嵌合凸部と嵌合凹部の形状を上方に行くに従い小径となるように形成する構成により、嵌合凸部と嵌合凹部の嵌合が容易となる。
高さ調整プレートの対向する側縁に係止ボルトが挿通する切り欠き部を形成する構成により、係止ボルトを容易に切り欠きに挿通可能となる。
上下構造物間の空間が狭い場合、前記上部構造物に固定されるベッドプレートの対向する側縁に上部構造物をジャッキアップするための治具を固定するための嵌合孔を形成する構成により、橋梁用支承のような狭い空間での不等沈下修正作業の際の上部構造物のジャッキアップが容易に可能となる。
不等沈下修正工法において、上部構造物を下部構造に対してジャッキアップし、下部構造物に固定されたベースプレート上に、下部構造物の不等沈下量に応じた枚数の高さ調整プレートを嵌合凸部と嵌合凹部とを嵌合させて積層し、その後、上部構造物を下降させ、上部構造物に固定したベッドプレートの嵌合凹部と、最上位の高さ調整プレートの嵌合凸部を嵌合する構成により、位置合わせ作業が容易で、連結ボルトによる上部構造物と下部構造物の連結作業を大幅に省略することができるので、低コストの不等沈下修正工法を提供できる。 A fitting convex part is formed in the center part of the base plate fixed to the lower structure of the present invention, and a fitting concave part to be fitted to the fitting convex part is formed in the center part of the bed plate fixed to the upper structure. In the support structure of the structure, a fitting concave portion for fitting with the fitting convex portion of the base plate is formed on the lower surface, and a fitting convex portion for fitting with the fitting concave portion formed on the bed plate is formed on the upper surface. The height adjustment plate is stacked according to the amount of uneven settlement, and the lower structure, upper structure, and height adjustment plate are stacked by fitting the fitting convex part and fitting concave part. Since there is no need for alignment during the operation and bolts for preventing horizontal movement are not required, it is easy to correct uneven settlement, and a support structure that can correct uneven settlement of low-cost structures should be adopted. Can do.
With the configuration in which the cross-sectional shape of the fitting convex part and fitting concave part formed on the base plate, bed plate and height adjusting plate is circular or rectangular, the shape of the fitting part is simple, so that it is easy to mold during manufacturing. In both cases, alignment during fitting is facilitated.
The fitting convex portion and fitting concave portion are formed so that the diameter of the fitting convex portion and fitting concave portion formed on the base plate, bed plate and height adjusting plate becomes smaller as it goes upward. It becomes easy.
With the configuration in which the notch portion through which the locking bolt is inserted is formed on the opposite side edge of the height adjusting plate, the locking bolt can be easily inserted into the notch.
When the space between the upper and lower structures is narrow, a fitting hole for fixing a jig for jacking up the upper structure is formed on the opposite side edge of the bed plate fixed to the upper structure. In addition, it is possible to easily jack up the superstructure when correcting uneven settlement in a narrow space such as a bridge support.
In the unequal subsidence correction method, the upper structure is jacked up with respect to the lower structure, and the number of height adjustment plates according to the amount of unequal subsidence of the lower structure is fitted on the base plate fixed to the lower structure. The mating convex part and the mating concave part are fitted and stacked, and then the upper structure is lowered and the mating concave part of the bed plate fixed to the upper structure and the fitting convexity of the uppermost height adjustment plate With the configuration of fitting the parts, the alignment work is easy, and the connection work of the upper structure and the lower structure by the connection bolt can be largely omitted, so that a low-cost unequal settlement correction method can be provided.

本発明の実施の形態を図により説明する。図１は、本発明の構造物の不等沈下修正可能支承構造の一実施形態を示す図である。この実施形態の不等沈下修正可能支承構造１は、柱・梁等の上部構造物２と基礎等の下部構造物３からなる建物等の構造物に適用されたものである。   Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a view showing an embodiment of a structure for unequal settlement correction of a structure according to the present invention. The unequal settlement correctable support structure 1 of this embodiment is applied to a structure such as a building including an upper structure 2 such as a column and a beam and a lower structure 3 such as a foundation.

柱・梁等の上部構造物２の下端には、金属製又は非圧縮コンクリと製のベッドプレート５が固定される。ベッドプレート５の中央部には、嵌合凹部６が形成される。嵌合凹部６の断面形状は円形又は矩形とする。基礎等の下部構造物３には、ベースプレート７が下部構造物３に埋設固定されたアンカーボルト８により固定される。ベースプレート７の中央部には、前記ベッドプレート５の中央部に形成された嵌合凹部６と嵌合する嵌合凸部９が形成される。ベースプレート７の嵌合凸部９とベッドプレート５の嵌合凹部６との嵌合により、上部構造物２と下部構造物３との位置合わせが容易になると共に、上部構造物２と下部構造物３との水平方向の移動が阻止されるので、上下構造物２、３とを固定する連結ボルトを無くすことができるか、少なくともその必要本数を少なくすることができる。嵌合凹部６と嵌合凸部９の断面形状は他の多角形、楕円形でも良いが、形が複雑になると製造の際の成形が困難となり、嵌合の際の位置合わせも困難となるので、円形又は矩形が好ましい。また、嵌合凹部６と嵌合凸部９の断面形状を上方に行くに従い小径とすることにより、嵌合がより容易となる。水平方向の移動を阻止するため、小径とするテーパ角度を少なくすることが望ましい。   A bed plate 5 made of metal or non-compressed concrete is fixed to the lower end of the upper structure 2 such as a column or beam. A fitting recess 6 is formed at the center of the bed plate 5. The cross-sectional shape of the fitting recess 6 is circular or rectangular. A base plate 7 is fixed to the lower structure 3 such as a foundation by anchor bolts 8 embedded and fixed in the lower structure 3. A fitting projection 9 is formed at the center of the base plate 7 to be fitted with the fitting recess 6 formed at the center of the bed plate 5. The fitting between the fitting convex portion 9 of the base plate 7 and the fitting concave portion 6 of the bed plate 5 facilitates the alignment of the upper structure 2 and the lower structure 3, and the upper structure 2 and the lower structure. 3 is prevented from moving in the horizontal direction, the connecting bolts for fixing the upper and lower structures 2 and 3 can be eliminated, or at least the required number of them can be reduced. The cross-sectional shapes of the fitting concave portion 6 and the fitting convex portion 9 may be other polygonal or elliptical shapes. However, when the shape is complicated, it becomes difficult to mold during manufacturing and alignment during fitting is also difficult. Therefore, a circular shape or a rectangular shape is preferable. Moreover, fitting becomes easier by making the cross-sectional shape of the fitting recessed part 6 and the fitting convex part 9 small diameter as it goes upwards. In order to prevent horizontal movement, it is desirable to reduce the taper angle with a small diameter.

基礎等の下部構造物３が不等沈下した場合、上部構造物２を水平に保つために、上下構造物２、３間に昇降ジャッキ４を配置し、上部構造物２を上昇させ、上部構造物２と下部構造物３との間に図２（ａ）（ｂ）に示されるような高さ調整プレート１０を不等沈下の量に応じて複数枚積層して配置する。高さ調整プレート１０は、金属製又は非圧縮コンクリート製で、その上面中央部には、ベースプレート７に形成した嵌合凸部９と同一形状の嵌合凸部１１が形成され、その下面中央部には、ベッドプレート５に形成した嵌合凹部６と同一形状の嵌合凹部１２が形成される。高さ調整プレート１０の相対する側辺部には、上部構造物２と下部構造物３に固定されたベースプレート７とを連結固定する係止ボルト１４が挿通するＵ字状の切り欠き部１３を形成する。高さ調整プレート１０は互いにその嵌合凸部１１と嵌合凹部１２が嵌合するので水平方向の移動が阻止されているため、係止ボルト１４による固定の必要がないので、上下構造物２、３を連結固定する係止ボルト１４が挿通するＵ字状の切り欠き部１３を形成するだけでよい。Ｕ字状の切り欠き部１３は、係止ボルト１４を挿通する貫通孔を形成した場合と比較し、上下構造物２、３の連結固定の際の位置合わせが容易となる。   When the lower structure 3 such as the foundation sinks unevenly, in order to keep the upper structure 2 horizontal, the lifting jack 4 is arranged between the upper and lower structures 2 and 3 to raise the upper structure 2, A plurality of height adjusting plates 10 as shown in FIGS. 2A and 2B are stacked between the object 2 and the lower structure 3 in accordance with the amount of uneven settlement. The height adjustment plate 10 is made of metal or non-compressed concrete, and a fitting convex portion 11 having the same shape as the fitting convex portion 9 formed on the base plate 7 is formed at the central portion of the upper surface, and the central portion of the lower surface thereof. Is formed with a fitting recess 12 having the same shape as the fitting recess 6 formed in the bed plate 5. A U-shaped cutout portion 13 through which a locking bolt 14 for connecting and fixing the upper structure 2 and the base plate 7 fixed to the lower structure 3 is inserted in the opposite side portions of the height adjustment plate 10. Form. Since the fitting convex part 11 and the fitting concave part 12 are fitted to each other, the height adjusting plate 10 is prevented from moving in the horizontal direction, and therefore need not be fixed by the locking bolts 14. It is only necessary to form a U-shaped cutout portion 13 through which a locking bolt 14 for connecting and fixing 3 is inserted. The U-shaped notch 13 can be easily aligned when the upper and lower structures 2 and 3 are connected and fixed as compared with a case where a through-hole through which the locking bolt 14 is inserted is formed.

上部構造物２を昇降ジャッキ４で上昇させ、最下位の高さ調整プレート１０を、下部構造物３に固定されたベースプレート７の嵌合凸部９と嵌合凹部１２を嵌合させて載置し、その上に不等沈下量に応じた枚数積層し、その後、昇降ジャッキ４を下降させ、最上位の高さ調整プレート１０の嵌合凸部１１と、上部構造物２の下面に固定したベッドプレート５に形成して嵌合凹部６と嵌合させ、上下構造物２、３を係止ボルト１４で連結固定する。   The upper structure 2 is lifted by the lifting jack 4, and the lowest height adjustment plate 10 is placed by fitting the fitting convex portion 9 and the fitting concave portion 12 of the base plate 7 fixed to the lower structure 3. Then, a number of sheets corresponding to the amount of uneven settlement is stacked thereon, and then the lifting jack 4 is lowered and fixed to the fitting convex portion 11 of the uppermost height adjustment plate 10 and the lower surface of the upper structure 2. The upper and lower structures 2 and 3 are connected and fixed by the locking bolts 14 formed on the bed plate 5 and fitted into the fitting recess 6.

図３に示す実施形態の構造物の不等沈下修正可能支承構造１は、橋桁等の上部構造物２と橋脚等の下部構造物３からなる橋梁に適用されたものである。橋脚用の支承構造は、橋桁からなる上部構造物２の下面に、上沓が固定され、上沓の下面に弾性荷重支持板が連結固定され、その下にベッドプレート５が固定される。図４（ａ）（ｂ）に示されるように、ベッドプレート５の下面中央部には、嵌合凹部６が形成される。嵌合凹部６の断面形状は円形又は矩形とする。ベッドプレート５の相対する側辺部には、上下構造物２、３を連結固定する係止ボルト１４が挿通するＵ字形状の切り欠き部１５が形成され、さらに側辺部には、上部構造物２を昇降させるためのジャッキアップ治具１６を設置するための盲孔１７を形成する。橋脚からなる下部構造物３の表面には、均しモルタル層１８が形成され、その上にベースプレート７がアンカーボルト８により固定される。図５（ａ）（ｂ）に示されるように、ベースプレート７の上面中央部には、ベッドプレート５の下面に形成した嵌合凹部６と嵌合する嵌合凸部９が形成される。さらに、ベースプレート７には、係止ボルト１４を螺着するための盲雌ねじ孔１９が形成される。下部構造物３のベースプレート５の嵌合凸部９と上部構造物２のベッドプレート５下面の嵌合凹部６を嵌合させ、上下構造物２，３とを係止ボルト１４で連結固定する。   3 is applied to a bridge including an upper structure 2 such as a bridge girder and a lower structure 3 such as a bridge pier. In the support structure for the bridge pier, an upper rod is fixed to the lower surface of the upper structure 2 composed of a bridge girder, an elastic load support plate is connected and fixed to the lower surface of the upper rod, and the bed plate 5 is fixed below the upper load. As shown in FIGS. 4 (a) and 4 (b), a fitting recess 6 is formed at the center of the lower surface of the bed plate 5. The cross-sectional shape of the fitting recess 6 is circular or rectangular. A U-shaped cutout portion 15 through which a locking bolt 14 for connecting and fixing the upper and lower structures 2 and 3 is inserted is formed in the opposite side portions of the bed plate 5, and the upper structure is formed in the side portion. A blind hole 17 for installing a jack-up jig 16 for raising and lowering the object 2 is formed. A leveling mortar layer 18 is formed on the surface of the lower structure 3 composed of bridge piers, and the base plate 7 is fixed thereon by anchor bolts 8. As shown in FIGS. 5 (a) and 5 (b), a fitting convex portion 9 that fits with the fitting concave portion 6 formed on the lower surface of the bed plate 5 is formed at the center of the upper surface of the base plate 7. Further, a blind female screw hole 19 for screwing the locking bolt 14 is formed in the base plate 7. The fitting projection 9 of the base plate 5 of the lower structure 3 and the fitting recess 6 of the lower surface of the bed plate 5 of the upper structure 2 are fitted, and the upper and lower structures 2 and 3 are connected and fixed by the locking bolts 14.

橋脚からなる下部構造物３が不等沈下した場合、橋桁からなる上部構造物２を水平に保つために、係止ボルト１４を取り外し、ベッドプレート５の側辺部に形成した盲孔１７に、ジャッキアップ治具１６を設置し、上下構造物２，３間に昇降ジャッキ４を配置し、上部構造物２を上昇させ、上部構造物２と下部構造物３との間に図２（ａ）（ｂ）に示されるような高さ調整プレート１０を不等沈下の量に応じて複数枚積層して配置する。ジャッキアップ治具１６を設置するのは、橋梁用支承の場合、その空間が狭いため、狭い作業空間での上部構造物の昇降ジャッキによる昇降を容易にするためである。高さ調整プレート１０は、金属製又は非圧縮コンクリート製で、その上面中央部には、ベースプレート７に形成した嵌合凸部９と同一形状の嵌合凸部１１が形成され、その下面中央部には、ベッドプレート５に形成した嵌合凹部６と同一形状の嵌合凹部１２が形成される。高さ調整プレート１０の相対する側辺部には、上部構造物２と下部構造物３に固定されたベースプレート７とを連結固定する係止ボルト１４が挿通するＵ字状の切り欠き部１３を形成する。   When the lower structure 3 made of bridge piers inevitably sinks, in order to keep the upper structure 2 made of bridge girders horizontal, the locking bolts 14 are removed, and the blind holes 17 formed in the side portions of the bed plate 5 The jack-up jig 16 is installed, the lifting jack 4 is arranged between the upper and lower structures 2 and 3, the upper structure 2 is raised, and the upper structure 2 and the lower structure 3 are shown in FIG. A plurality of height adjustment plates 10 as shown in (b) are stacked and arranged according to the amount of uneven settlement. The reason for installing the jack-up jig 16 is that in the case of a bridge support, the space is narrow, so that the upper structure can be easily moved up and down by a lifting jack in a narrow work space. The height adjustment plate 10 is made of metal or non-compressed concrete, and a fitting convex portion 11 having the same shape as the fitting convex portion 9 formed on the base plate 7 is formed at the central portion of the upper surface, and the central portion of the lower surface thereof. Is formed with a fitting recess 12 having the same shape as the fitting recess 6 formed in the bed plate 5. A U-shaped cutout portion 13 through which a locking bolt 14 for connecting and fixing the upper structure 2 and the base plate 7 fixed to the lower structure 3 is inserted in the opposite side portions of the height adjustment plate 10. Form.

上部構造物２を昇降ジャッキ４で上昇させ、最下位の高さ調整プレート１０を、下部構造物３に固定されたベースプレート７の嵌合凸部９と嵌合凹部１２を嵌合させて載置し、その上に不等沈下量に応じた枚数積層し、その後、昇降ジャッキ４を下降させ、最上位の高さ調整プレート１０の嵌合凸部１１と、上部構造物２の下面に固定したベッドプレート５に形成して嵌合凹部６と嵌合させ、上下構造物２、３を係止ボルト１４で連結固定する。   The upper structure 2 is lifted by the lifting jack 4, and the lowest height adjustment plate 10 is placed by fitting the fitting convex portion 9 and the fitting concave portion 12 of the base plate 7 fixed to the lower structure 3. Then, a number of sheets corresponding to the amount of uneven settlement is stacked thereon, and then the lifting jack 4 is lowered and fixed to the fitting convex portion 11 of the uppermost height adjustment plate 10 and the lower surface of the upper structure 2. The upper and lower structures 2 and 3 are connected and fixed by the locking bolts 14 formed on the bed plate 5 and fitted into the fitting recess 6.

次に、本発明の構造物の不等沈下修正工法の施工手順を、図６（ａ）〜（ｅ）に示される橋梁用の支承構造に適用した実施形態により説明する。   Next, the construction procedure of the unequal settlement correction method for a structure according to the present invention will be described with reference to an embodiment applied to a bridge support structure shown in FIGS. 6 (a) to 6 (e).

（１）先ず、図６（ａ）に示すように、上下構造物２、３を連結固定している係止ボルト１４を取り外し、ベッドプレート５の側辺部に形成した盲孔１７にジャッキアップ治具１６を設置する。
（２）次に、図６（ｂ）に示すように、下部構造物３と上部構造物２との間に昇降ジャッキ４を配置し、上部構造物２を上昇させる。
（３）次に、図６（ｃ）に示すように、下部構造物２に固定されたベースプレート７上に、高さ調整プレート１０を、その下面の嵌合凹部１２をベースプレート７上面の嵌合凸部９と嵌合させて積層する。不等沈下の量に応じて複数枚の高さ調整プレート１０を積層する。
（４）次に、図６（ｄ）に示すように、昇降ジャッキ４を下降させ、最上位の高さ調整プレート１０の上面の嵌合凸部１１と、ベッドプレート５の下面に形成した嵌合凹部６を嵌合させ、昇降ジャッキ４及びジャッキアップ治具１６を取り外し、撤去する。
（５）最後に、図６（ｅ）に示すように、上下構造物２，３を、高さ調整プレート１０の積層枚数に合う長さの係止ボルト１４を選択して、連結固定する。 (1) First, as shown in FIG. 6 (a), the locking bolts 14 that connect and fix the upper and lower structures 2 and 3 are removed and jacked up to the blind holes 17 formed in the side portions of the bed plate 5. The jig 16 is installed.
(2) Next, as shown in FIG. 6B, the lifting jack 4 is disposed between the lower structure 3 and the upper structure 2, and the upper structure 2 is raised.
(3) Next, as shown in FIG. 6C, the height adjustment plate 10 is fitted on the base plate 7 fixed to the lower structure 2, and the fitting recess 12 on the lower surface thereof is fitted on the upper surface of the base plate 7. The protrusions 9 are fitted and stacked. A plurality of height adjustment plates 10 are stacked according to the amount of uneven settlement.
(4) Next, as shown in FIG. 6 (d), the lifting jack 4 is lowered, and the fitting protrusion 11 on the upper surface of the uppermost height adjustment plate 10 and the fitting formed on the lower surface of the bed plate 5. The mating recess 6 is fitted, the lifting jack 4 and the jack-up jig 16 are removed and removed.
(5) Finally, as shown in FIG. 6 (e), the upper and lower structures 2 and 3 are connected and fixed by selecting the locking bolts 14 having a length that matches the number of stacked height adjustment plates 10.

本発明の実施形態を示す図である。It is a figure which shows embodiment of this invention. （ａ）（ｂ）本発明の実施形態を示す図である。(A) (b) It is a figure which shows embodiment of this invention. 本発明の実施形態を示す図である。It is a figure which shows embodiment of this invention. （ａ）（ｂ）本発明の実施形態を示す図である。(A) (b) It is a figure which shows embodiment of this invention. （ａ）（ｂ）本発明の実施形態を示す図である。(A) (b) It is a figure which shows embodiment of this invention. （ａ）〜（ｅ）本発明の実施形態を示す図である。(A)-(e) It is a figure which shows embodiment of this invention.

符号の説明Explanation of symbols

１：不等沈下修正可能支承構造
２：上部構造物
３：下部構造物
４：昇降ジャッキ
５：ベッドプレート
６：嵌合凹部
７：ベースプレート
８：アンカーボルト
９：嵌合凸部
１０：高さ調整プレート
１１：嵌合凸部
１２：嵌合凹部
１３：切り欠き部
１４：係止ボルト
１５：切り欠き部
１６：ジャッキアップ治具
１７：盲孔
１８：均しモルタル層
１９：盲雌ねじ孔 1: Non-uniform subsidence-correctable support structure 2: Upper structure 3: Lower structure 4: Lifting jack 5: Bed plate 6: Fitting recess 7: Base plate 8: Anchor bolt 9: Fitting protrusion 10: Height adjustment Plate 11: Fitting convex part 12: Fitting concave part 13: Notch part 14: Locking bolt 15: Notch part 16: Jackup jig 17: Blind hole 18: Leveling mortar layer 19: Blind female screw hole

Claims (6)

下部構造物に固定されるベースプレートの中央部に嵌合凸部を形成し、上部構造物に固定されるベッドプレートの中央部に前記嵌合凸部と嵌合する嵌合凹部を形成した構造物の支承構造において、下面に前記ベースプレートの嵌合凸部と嵌合する嵌合凹部を形成し、上面に前記ベッドプレートに形成した嵌合凹部と嵌合する嵌合凸部を形成した高さ調整用プレートを不等沈下量に応じた枚数積層することを特徴とする構造物の不等沈下修正可能支承構造。 A structure in which a fitting projection is formed at the center of the base plate fixed to the lower structure, and a fitting recess to be fitted to the fitting projection is formed at the center of the bed plate fixed to the upper structure. In this support structure, a height adjustment is formed by forming a fitting recess that fits with the fitting projection of the base plate on the lower surface and a fitting projection that fits with the fitting recess formed on the bed plate on the upper surface. A structure capable of correcting unequal subsidence of a structure characterized by stacking a number of plates according to the amount of unequal subsidence. 前記ベースプレート、ベッドプレート及び高さ調整プレートに形成される嵌合凸部と嵌合凹部の断面形状を円形又は矩形とすることを特徴とする請求項１に記載の構造物の不等沈下修正可能支承構造。 2. The uneven settlement of the structure according to claim 1, wherein a cross-sectional shape of the fitting convex portion and the fitting concave portion formed on the base plate, the bed plate, and the height adjusting plate is circular or rectangular. Bearing structure. 前記ベースプレート、ベッドプレート及び高さ調整プレートに形成される嵌合凸部と嵌合凹部の形状を上方に行くに従い小径となるように形成することを特徴とする請求項１又は２に記載の構造物の不等沈下修正可能支承構造。 The structure according to claim 1 or 2, wherein the fitting projections and the fitting depressions formed on the base plate, the bed plate, and the height adjustment plate are formed to have a smaller diameter as they go upward. Support structure that can correct uneven settlement of objects. 前記高さ調整プレートの対向する側縁に係止ボルトが挿通する切り欠き部を形成することを特徴とする請求項１〜３のいずれかに記載の構造物の不等沈下修正可能支承構造。 The support structure capable of correcting uneven settlement of a structure according to any one of claims 1 to 3, wherein a notch portion through which a locking bolt is inserted is formed at opposite side edges of the height adjustment plate. 前記上下構造物間の空間が狭い場合、前記上部構造物に固定されるベッドプレートの対向する側縁に上部構造物をジャッキアップするための治具を固定するための嵌合孔を形成することを特徴とする請求項１〜４のいずれかに記載の構造物の不等沈下修正可能支承構造。 When the space between the upper and lower structures is narrow, a fitting hole for fixing a jig for jacking up the upper structure is formed on the opposite side edge of the bed plate fixed to the upper structure. 5. A structure capable of correcting uneven settlement of a structure according to any one of claims 1 to 4. 前記請求項１〜５のいずれかの構造物の不等沈下修正可能支承構造の不等沈下修正工法において、上部構造物を下部構造に対してジャッキアップし、下部構造物に固定されたベースプレート上に、下部構造物の不等沈下量に応じた枚数の高さ調整プレートを嵌合凸部と嵌合凹部とを嵌合させて積層し、その後、上部構造物を下降させ、上部構造物に固定したベッドプレートの嵌合凹部と、最上位の高さ調整プレートの嵌合凸部を嵌合することを特徴とする構造物の不等沈下修正工法。 In the non-uniform subsidence correction method of the structure of any one of claims 1-5, the upper structure is jacked up with respect to the lower structure, and the base structure is fixed to the lower structure. In addition, the height adjustment plates corresponding to the amount of uneven settlement of the lower structure are stacked by fitting the fitting convex portion and the fitting concave portion, and then the upper structure is lowered to the upper structure. An uneven settlement correction method for a structure characterized by fitting a fitting concave portion of a fixed bed plate and a fitting convex portion of an uppermost height adjustment plate.
JP2005360286A 2005-12-14 2005-12-14 Non-uniform subsidence correction support structure and unequal subsidence correction method Expired - Fee Related JP4475536B2 (en)

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* Cited by examiner, † Cited by third party
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KR102121700B1 (en) * 2019-11-27 2020-06-17 고재형 Apparatus For Preventing Bridge Falling Installed on the hydraulic jack And Computer Bridge Raising Method Using This
JP2021004549A (en) * 2020-10-12 2021-01-14 株式会社フジタ Support structure of building and correction method of uneven settlement of building
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KR102325055B1 (en) * 2020-12-24 2021-11-11 (주)제이제이산업 Modular digital bridge raising system using preventing bridge falling safety jacks

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