JPH083937A - Repair method for existing bridge - Google Patents
Repair method for existing bridgeInfo
- Publication number
- JPH083937A JPH083937A JP12753494A JP12753494A JPH083937A JP H083937 A JPH083937 A JP H083937A JP 12753494 A JP12753494 A JP 12753494A JP 12753494 A JP12753494 A JP 12753494A JP H083937 A JPH083937 A JP H083937A
- Authority
- JP
- Japan
- Prior art keywords
- existing
- bridge
- main girder
- girder
- existing bridge
- 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.)
- Granted
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、跨道橋、跨線橋等のオ
ーバーブリッジの主桁を新たな支持手段で支持して再利
用しつつ、既設の下部構造体を撤去することで、既設橋
下部の有効スペースを広げるための既設橋の改修工法に
関するもので、例えばオーバーブリッジの下部を交差す
る道路の拡幅工事等に利用することができる。[Industrial application] The present invention supports the main girders of overbridges such as overpasses and overpasses by new supporting means and reuses them, while removing the existing lower structure, The present invention relates to a method of repairing an existing bridge to expand the effective space of the section, and can be used, for example, for widening construction of roads that cross the lower part of the overbridge.
【０００２】[0002]
【従来の技術】道路を拡幅する場合、それを跨ぐオーバ
ーブリッジの橋脚やフーチング等が拡幅車線に入る場
合、何らかの改修が必要となる。2. Description of the Related Art When widening a road, some modifications are required when the piers and footings of an overbridge that crosses the road enter the widening lane.
【０００３】従来、このような場合、オーバーブリッジ
としての既設橋を全面撤去し、架け換えるのが一般的で
ある。Conventionally, in such a case, the existing bridge as an overbridge is generally removed and replaced.
【０００４】また、「橋梁と基礎」１９９２年８月号第
２００頁には、米国イリノイ州のブラックレーンロード
跨道橋の改修において、既設跨道橋の主桁を残す形で橋
脚の一部を撤去した改修事例が記載されている。Also, in "Bridges and Foundations", August 1992, p. 200, a part of a bridge pier is left in the form of leaving the main girder of an existing overpass when repairing the Blacklane Road Overpass in Illinois, USA. The example of renovation that removed is described.
【０００５】上記の事例では、図４に示すような既設橋
５１（４径間連続ＲＣ桁橋）について、橋下の道路５５
ａ，５５ｂの外側にランプ５６ａ，５６ｂを建設するに
当り、図５および図６に示すように既設橋５１の側径間
の橋軸方向中央部に新たに橋脚６２を設け、橋脚６２上
のロッカー支承６２ａで主桁５４を支持するとともに、
主桁５４上にも鉄筋コンクリート支柱６３を構築し、支
柱６３と既設の橋脚５２による支点位置とをＰＣ鋼棒６
４でつないで主桁５４を支持した後、既設の橋脚５２を
撤去し、新たな橋６１（２径間連続ＲＣ斜張橋）として
改修している。In the above example, the road 55 below the existing bridge 51 (4 span continuous RC girder bridge) as shown in FIG. 4 is used.
When constructing the ramps 56a, 56b on the outside of the a, 55b, a new bridge pier 62 is provided at the central portion in the bridge axial direction between the side spans of the existing bridge 51 as shown in FIGS. While supporting the main girder 54 with the rocker bearing 62a,
Reinforced concrete columns 63 are also constructed on the main girder 54, and the columns 63 and the fulcrum positions of the existing piers 52 are connected to the PC steel rods 6.
After connecting by 4 to support the main girder 54, the existing bridge pier 52 was removed and refurbished as a new bridge 61 (2-span continuous RC cable-stayed bridge).
【０００６】この場合、ＰＣ鋼棒６４の軸方向力の鉛直
成分は支柱６３から主桁５４、ロッカー支承６２ａを介
して、橋脚６２より基礎地盤に伝わる。また、水平力に
ついては撤去される橋脚５２の支点位置に横桁６６を設
けることで対処し、支柱６３に関する反対側には反力を
とるためのアンカーブロック６５を設け、ＰＣ鋼棒６４
で支柱６３とつないでいる。In this case, the vertical component of the axial force of the PC steel rod 64 is transmitted from the support column 63 to the foundation ground through the main girder 54 and the rocker bearing 62a from the bridge pier 62. Further, horizontal force is dealt with by providing a cross beam 66 at a fulcrum position of the bridge pier 52 to be removed, and an anchor block 65 for taking a reaction force is provided on the opposite side of the support column 63, and a PC steel rod 64 is provided.
It is connected to the pillar 63 with.
【０００７】[0007]
【発明が解決しようとする課題】既設橋を全面撤去し、
新たな橋を架設する場合、工費が高い、工期（特に交通
規制期間）が長い、撤去に伴う大量の建設廃材が出ると
いった問題がある。[Problems to be solved by the invention] The existing bridge was completely removed,
When constructing a new bridge, there are problems that the construction cost is high, the construction period (especially the traffic regulation period) is long, and a large amount of construction waste is generated due to the removal.
【０００８】従来の技術の項で述べたブラックレーンロ
ード跨道橋の改修事例は、既設橋の主桁を残した形で改
修を行うことで、上述のような問題の解決を図ったもの
と言える。In the case of repairing the black lane road overpass described in the section of the prior art, it is said that the problem as described above was solved by repairing the existing bridge with the main girders left. I can say.
【０００９】しかし、一方、既設橋の主桁は支持方法に
応じて断面が設計されており、鉄筋、ＰＣ鋼材等の補強
材の配置（ＲＣ構造の場合等）、補剛材の配置（鋼構造
の場合等）も複雑となる場合が多い。On the other hand, on the other hand, the main girder of the existing bridge has a cross-section designed according to the supporting method, and reinforcement members such as reinforcing bars and PC steel materials are arranged (for RC structure, etc.) and stiffening materials are arranged (steel). In many cases, the structure is complicated.
【００１０】従って、主桁だけ残して既設の支持構造体
を撤去し、新たな支持形式を採用すると、主桁の応力状
態が変わり、桁としての断面性能が十分に発揮できなく
なることが考えられる。Therefore, if the existing support structure is removed leaving only the main girder and a new support type is adopted, the stress state of the main girder changes, and the cross-sectional performance of the girder may not be fully exhibited. .
【００１１】そのため、単に支持形式あるいは支点位置
を変更するだけでなく、別途、主桁の補強、補剛が必要
となるが、そのためさらに複雑な構造となり、施工性の
面でも問題が生ずる。Therefore, in addition to simply changing the support type or the position of the fulcrum, it is necessary to separately reinforce and stiffen the main girder. However, this results in a more complicated structure and a problem in terms of workability.
【００１２】例えば、上記の事例の場合、ロッカー支承
６２ａ位置において主桁５４に新たな支点が加わる他、
主桁５４が支柱６３を支持しており、支柱６３がＰＣ鋼
棒６４から大きな鉛直力を受けるため、主桁５４につい
てもかなりの補強が必要となると考えられる。また、水
平力についても、横桁６６やアンカーブロック６５の負
担があるものの、既設橋における側径間の応力状態が変
わり、改修において考慮する必要が生ずる。For example, in the above case, a new fulcrum is added to the main girder 54 at the position of the rocker bearing 62a,
Since the main girder 54 supports the pillar 63 and the pillar 63 receives a large vertical force from the PC steel rod 64, it is considered that the main girder 54 also needs to be considerably reinforced. Also, regarding the horizontal force, although the lateral beam 66 and the anchor block 65 are burdened, the stress state between the side spans of the existing bridge changes, and it becomes necessary to consider it in the repair.
【００１３】本願発明の既設橋の改修工法は上述のよう
な背景の下に発明されたものであり、既設の主桁の有効
利用による施工性、経済性の向上、およびそれに伴う既
設橋下の道路拡幅工事等における交通規制の緩和を目的
としている。The existing bridge rehabilitation method of the present invention was invented against the background as described above. The effective use of the existing main girder improves the workability and economy, and the roads under the existing bridge. The purpose is to ease traffic restrictions in widening work.
【００１４】[0014]
【課題を解決するための手段】本願発明の既設橋の改修
工法は、既設橋の主桁を新たな支持手段によって支持す
ることで再利用しつつ、主桁を支持していた既設の下部
構造体を撤去するものである。[Means for Solving the Problems] The method for repairing an existing bridge according to the present invention allows the main girder of the existing bridge to be reused by being supported by new supporting means, while the existing substructure supporting the main girder. It is to remove the body.
【００１５】本願の請求項１に対応する発明において
は、まず既設橋架設区間に主桁と並列に、アーチあるい
はトラス桁等からなる支持構造体を橋軸方向に架設す
る。In the invention according to claim 1 of the present application, first, a support structure including arches or truss girders is erected in the bridge axial direction in parallel with the main girder in the existing bridge erection section.
【００１６】次に、既設の下部構造体としての橋脚ある
いはπ形ラーメン橋等における斜材による主桁の支点位
置あるいはその近傍と上記の支持構造体とをつなぐ。こ
の連結は支持構造体の形式に応じ、主桁と支持構造体を
直接つないでもよいし、鋼材等の連結部材を介してつな
いでもよいし、あるいはＰＣケーブル等の緊張材を介し
てつないでもよい。Next, the fulcrum position of the main girder or the vicinity thereof by the diagonal member in the pier or the π-shaped rigid frame bridge as the existing lower structure is connected to the above-mentioned support structure. Depending on the type of the support structure, this connection may directly connect the main girder and the support structure, may be connected via a connecting member such as a steel material, or may be connected via a tension member such as a PC cable. .
【００１７】その後、下部構造体を撤去することで、主
桁の応力状態を実質的に変化させることなく新たに架設
した支持構造体に主桁を支持させることができ、桁下空
間を広げた新たな橋として改修されることになる。After that, by removing the lower structure, the main girder can be supported by the newly installed support structure without substantially changing the stress state of the main girder, and the space under the girder is expanded. It will be renovated as a new bridge.
【００１８】すなわち、下部構造体の撤去により主桁下
の有効スペースが広がり、広がったスペースを橋下の道
路の拡幅や付帯設備の建設等に利用することができる。That is, the removal of the lower structure expands the effective space under the main girder, and the expanded space can be used for widening the road under the bridge and constructing auxiliary equipment.
【００１９】なお、主桁と支持構造体の連結方法によっ
ては、水平力に関する応力状態が若干変わってくる場合
も考えられ、これに対しては、支点位置の補強も兼ね、
主桁の支点位置あるいはその近傍に橋軸直角方向の横桁
を設ける等して対処することが可能である。Depending on the method of connecting the main girder and the support structure, the stress state related to the horizontal force may slightly change. For this, the fulcrum position is also reinforced.
It is possible to deal with this by installing a cross girder in the direction perpendicular to the bridge axis at or near the fulcrum position of the main girder.
【００２０】本願の請求項５に対応する発明において
は、まず既設の下部構造体による主桁の支点位置あるい
はその近傍に下向きに突出する偏向部材を設ける。偏向
部材の材質は、コンクリート製、鋼製、その他特に限定
されない。In the invention according to claim 5 of the present application, first, a deflecting member projecting downward is provided at or near the fulcrum position of the main girder by the existing lower structure. The material of the deflecting member is not particularly limited to concrete, steel, or the like.
【００２１】次に、この偏向部材を利用して、既設橋架
設区間に主桁と並列に偏向部材の下部を経由させてＰＣ
ケーブル等の緊張材を橋軸方向に架け渡し、緊張材の緊
張により支点位置を鉛直方向に支持する。Next, using this deflecting member, a PC is passed through the lower part of the deflecting member in parallel with the main girder in the existing bridge construction section.
Tension materials such as cables are bridged in the bridge axis direction, and the fulcrum position is supported vertically by the tension of the tension material.
【００２２】その後、下部構造体を撤去することで、主
桁の応力状態を実質的に変化させることなく新たな支持
手段としての緊張材に主桁を支持させることができ、桁
下空間を広げた新たな橋として改修されることになる。After that, by removing the lower structure, the main girder can be supported by the tension member as a new supporting means without substantially changing the stress state of the main girder, and the space under the girder can be widened. It will be renovated as a new bridge.
【００２３】[0023]
【実施例】次に、図示した実施例について説明する。EXAMPLES Next, the illustrated examples will be described.
【００２４】図１は、本願の請求項１〜３に対応する改
修工法の一実施例を示したものである。FIG. 1 shows an embodiment of a repairing method corresponding to claims 1 to 3 of the present application.
【００２５】既設橋１は上り下りそれぞれ２車線の道路
１０を跨ぐオーバーブリッジであり、基礎杭４を有する
フーチング５を基礎構造体として、斜材２ａ，２ｂで主
桁３を支持するラーメン橋を構成している。The existing bridge 1 is an overbridge that crosses a road 10 having two lanes each going up and down. A footing 5 having foundation piles 4 is used as a basic structure, and a ramen bridge supporting main girders 3 with diagonal members 2a and 2b is used. I am configuring.
【００２６】上記の既設橋１について橋下の道路１０を
上下それぞれ３車線に拡幅するに当り、既設のフーチン
グ５および斜材２ａが拡幅範囲Ａ（図中、ハッチングで
示す）に入ってくるため、既設橋１の改修が必要とな
る。When the road 10 under the existing bridge 1 is widened to three lanes each in the upper and lower lanes, the existing footing 5 and the diagonal members 2a enter the widening range A (shown by hatching in the figure). The existing bridge 1 needs to be refurbished.
【００２７】本実施例における改修工事は以下のような
手順で行われる。The repair work in this embodiment is performed in the following procedure.
【００２８】 まず、新たな支持構造体を構成するア
ーチ１２を架設するに当り、両桁端に基礎杭１４、フー
チング１５等の下部工を施工する。First, when constructing the arch 12 that constitutes a new support structure, a substructure such as a foundation pile 14 and a footing 15 is constructed at both ends of the girder.
【００２９】 両桁端のフーチング１５間に、主桁３
と並列に、コンクリート部材あるいは鋼製部材からなる
アーチ１２を架設する。Between the footing 15 at both ends of the girder, the main girder 3
An arch 12 made of a concrete member or a steel member is installed in parallel with.
【００３０】 既設の斜材２ａによって支持されてい
る中間支点あるいはその近傍に、地表から立ち上げた支
保工あるいは吊支保工によって、主桁３横断方向に横桁
１３を設ける。A transverse girder 13 is provided in the transverse direction of the main girder 3 at an intermediate fulcrum supported by the existing diagonal member 2a or in the vicinity thereof by a supporting work or a suspension supporting work which is erected from the surface of the earth.
【００３１】 アーチ１２と横桁１３をＰＣケーブル
あるいは形鋼１６等でつなぎ、中間支点位置を鉛直方向
に吊ることで、新たな橋１１の構造系を完成させる。The structural system of the new bridge 11 is completed by connecting the arch 12 and the cross beam 13 with a PC cable or shaped steel 16 and suspending the intermediate fulcrum position in the vertical direction.
【００３２】 支保工および拡幅範囲に入る既設のフ
ーチング５の一部および斜材２ａ等を撤去する。なお、
図示した例のように、拡幅範囲に入らない斜材２ｂおよ
びフーチング５を支える基礎杭４は放置してもよい。A part of the existing footing 5 and the diagonal members 2a, etc., which are to be supported and expanded, are removed. In addition,
As in the illustrated example, the foundation pile 4 that supports the diagonal member 2b and the footing 5 that do not fall within the widening range may be left alone.
【００３３】図２は図１に対応する橋軸直角方向の断面
図であり、図中、１７は既設の主桁３と支点位置の横桁
１３を一体化するためのシアーコネクター、１８は横桁
１３下部に通した補強用の横締めＰＣ鋼材である。FIG. 2 is a cross-sectional view corresponding to FIG. 1 in the direction perpendicular to the bridge axis. In the figure, 17 is a shear connector for integrating the existing main girder 3 and the lateral girder 13 at the fulcrum position, and 18 is a lateral connector. It is a horizontally tightened PC steel material for reinforcement that passes through the lower part of the girder 13.
【００３４】なお、本願の請求項４に対応する改修工法
は、上記実施例におけるアーチ１２の代わりにトラス桁
を架設した場合に相当する。The repairing method corresponding to claim 4 of the present application corresponds to a case where a truss girder is installed in place of the arch 12 in the above embodiment.
【００３５】図３は、本願の請求項５および６に対応す
る改修工法の一実施例を示したもので、既設橋１および
改修の条件は、上記実施例の場合と同じである。FIG. 3 shows an embodiment of a repairing method corresponding to claims 5 and 6 of the present application. The existing bridge 1 and repairing conditions are the same as in the above embodiment.
【００３６】本実施例における改修工事は以下のような
手順で行われる。The repair work in this embodiment is performed in the following procedure.
【００３７】 まず、主桁３の支点位置あるいはその
近傍に下向きに突出する偏向部材２３を設け、両桁端に
は基礎杭２４、定着ブロック２５を施工する。First, a deflecting member 23 projecting downward is provided at or near the fulcrum position of the main girder 3, and foundation piles 24 and fixing blocks 25 are installed at both girder ends.
【００３８】 両桁端の定着ブロック２５間に、主桁
３と並列に、ＰＣケーブル２２等の緊張材を偏向部材２
３の下部を経由させて架け渡す。Between the fixing blocks 25 at both ends of the girder, a tension member such as the PC cable 22 is provided in parallel with the main girder 3 and the deflecting member 2 is provided.
Cross over via the lower part of 3.
【００３９】 緊張材の緊張により偏向部材２３を介
して中間支点位置を鉛直方向に支持し、新たな橋２１の
構造系を完成させる。The tension of the tension member supports the intermediate fulcrum position in the vertical direction via the deflecting member 23 to complete a new structural system of the bridge 21.
【００４０】 拡幅範囲に入る既設のフーチング５の
一部および斜材２ａ等を撤去する。A part of the existing footing 5 and the diagonal member 2a, etc., which fall within the widening range, are removed.
【００４１】[0041]
【発明の効果】 既設橋の改修によってスパンを広げ、桁下空間を有
効に使用することができるようになる。[Effects of the Invention] The span can be expanded and the space under the girder can be effectively used by modifying the existing bridge.
【００４２】 既設の主桁を再利用して新しいオーバ
ーブリッジとするため、工費、資材を節減することがで
きる。Since the existing main girder is reused as a new overbridge, it is possible to reduce the construction cost and materials.
【００４３】 新たに橋を架け換えるより工期が短く
なり、交通規制の期間も短くて済む。The construction period is shorter than that when a new bridge is rebuilt, and the period for traffic regulation can be shortened.
【００４４】 主桁の応力状態が実質的に変わらず、
設計荷重作用時の断面力の増減がないため、橋軸方向の
ＰＣ鋼材や鉄筋等の配置、鋼材量等の変更が必要なく、
設計面における無駄が少ない。The stress state of the main girder does not substantially change,
Since the cross-sectional force does not increase or decrease when the design load is applied, there is no need to change the arrangement of PC steel or reinforcing bars in the bridge axis direction, or the amount of steel, etc.
There is little waste in design.
【００４５】 解体による建設廃材の量が少ない。The amount of construction waste materials resulting from dismantling is small.
【図１】 本願発明の実施例（請求項３に対応）を示す
側面図である。FIG. 1 is a side view showing an embodiment (corresponding to claim 3) of the present invention.
【図２】 図１に対応する橋軸直角方向の一部を示す断
面図である。FIG. 2 is a cross-sectional view showing a part in the direction perpendicular to the bridge axis corresponding to FIG.
【図３】 本願発明の実施例（請求項５に対応）を示す
側面図である。FIG. 3 is a side view showing an embodiment (corresponding to claim 5) of the present invention.
【図４】 従来例における改修前の既設橋（跨道橋）の
側面図である。FIG. 4 is a side view of an existing bridge (overpass) before repair in a conventional example.
【図５】 図５に対応する改修後の跨道橋の側面図であ
る。5 is a side view of the overpass after the repair corresponding to FIG. 5. FIG.
【図６】 図６に対応する支持構造の説明図である。FIG. 6 is an explanatory view of a support structure corresponding to FIG.
１…既設橋、２ａ，２ｂ…斜材、３…主桁、４…基礎
杭、５…フーチング、１０…道路、１１…新設橋、１２
…アーチ、１３…横桁、１４…基礎杭、１５…フーチン
グ、１６…ケーブル、１７…シヤコネクター、１８…横
締めＰＣ鋼材、２１…新設橋、２２…ケーブル、２３…
偏向部材、２４…基礎杭、２５…定着ブロック、５１…
既設橋、５２…橋脚、５３…橋台、５４…主桁、５５
ａ，５５ｂ…道路、６１…改修後の橋、６２…新たな橋
脚、６３…鉄筋コンクリート支柱、６４…ＰＣ鋼棒、６
５…アンカーブロック、６６…横桁1 ... Existing bridge, 2a, 2b ... Slanting material, 3 ... Main girder, 4 ... Foundation pile, 5 ... Footing, 10 ... Road, 11 ... New bridge, 12
… Arch, 13… Transverse, 14… Foundation pile, 15… Footing, 16… Cable, 17… Shear connector, 18… Horizontal fastening PC steel material, 21… New bridge, 22… Cable, 23…
Deflection member, 24 ... Foundation pile, 25 ... Fixing block, 51 ...
Existing bridge, 52 ... Pier, 53 ... Abutment, 54 ... Main girder, 55
a, 55b ... Road, 61 ... Bridge after renovation, 62 ... New pier, 63 ... Reinforced concrete column, 64 ... PC steel rod, 6
5 ... Anchor block, 66 ... Transverse beam
フロントページの続き (72)発明者 桝本 恵太 東京都港区元赤坂１丁目２番７号 鹿島建 設株式会社内Continued Front Page (72) Inventor Keita Masumoto 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd.
Claims (6)
支持することで再利用しつつ、主桁を支持していた既設
の下部構造体を撤去する既設橋の改修工法であって、既
設橋架設区間に主桁と並列に支持構造体を橋軸方向に架
け渡し、既設の下部構造体による主桁の支点位置あるい
はその近傍と前記支持構造体とをつなぎ、前記下部構造
体を撤去することで、主桁の応力状態を実質的に変化さ
せることなく新たな支持手段としての前記支持構造体に
主桁を支持させることを特徴とする既設橋の改修工法。1. A method for repairing an existing bridge, wherein the existing girder of an existing bridge is reused by being supported by a new supporting means, and the existing lower structure that was supporting the main girder is removed. A support structure is bridged in the bridge axial direction in parallel with the main girder in the bridge construction section, the fulcrum position of the main girder by the existing lower structure or its vicinity is connected to the support structure, and the lower structure is removed. Thus, the method for repairing an existing bridge is characterized in that the main girder is supported by the support structure as a new supporting means without substantially changing the stress state of the main girder.
直角方向の横桁を設け、支点位置の補強を行う請求項１
記載の既設橋の改修工法。2. A cross girder orthogonal to the bridge axis is provided at or near the fulcrum position of the main girder to reinforce the fulcrum position.
Construction method for the existing bridge described.
は２記載の既設橋の改修工法。3. The method for repairing an existing bridge according to claim 1, wherein the support structure is an arch.
たは２記載の既設橋の改修工法。4. The method for repairing an existing bridge according to claim 1, wherein the support structure is a truss girder.
支持することで再利用しつつ、主桁を支持していた既設
の下部構造体を撤去する既設橋の改修工法であって、既
設の下部構造体による主桁の支点位置あるいはその近傍
に下向きに突出する偏向部材を設け、既設橋架設区間に
主桁と並列に前記偏向部材の下部を経由させて緊張材を
橋軸方向に架け渡して緊張し、前記下部構造体を撤去す
ることで、主桁の応力状態を実質的に変化させることな
く新たな支持手段としての前記緊張材に主桁を支持させ
ることを特徴とする既設橋の改修工法。5. A method for rehabilitating an existing bridge, in which an existing substructure supporting the main girder is removed while the main girder of the existing bridge is reused by being supported by new supporting means. A downwardly projecting deflection member is provided at or near the fulcrum position of the main girder of the lower structure of the above, and the tension member is laid in the bridge axial direction in the existing bridge construction section in parallel with the main girder via the lower part of the deflection member. An existing bridge characterized in that the main girder is supported by the tension member as a new support means without substantially changing the stress state of the main girder by passing the tension and removing the lower structure. Repair method.
した定着ブロックに定着させる請求項５記載の既設橋の
改修工法。6. The method for repairing an existing bridge according to claim 5, wherein both ends of the tension member are fixed to fixing blocks installed near both ends of the existing bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12753494A JP2734987B2 (en) | 1994-06-09 | 1994-06-09 | Existing bridge repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12753494A JP2734987B2 (en) | 1994-06-09 | 1994-06-09 | Existing bridge repair method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH083937A true JPH083937A (en) | 1996-01-09 |
| JP2734987B2 JP2734987B2 (en) | 1998-04-02 |
Family
ID=14962396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12753494A Expired - Fee Related JP2734987B2 (en) | 1994-06-09 | 1994-06-09 | Existing bridge repair method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2734987B2 (en) |
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