JP2006077521A - Bridge constructing apparatus - Google Patents

Bridge constructing apparatus Download PDF

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JP2006077521A
JP2006077521A JP2004264817A JP2004264817A JP2006077521A JP 2006077521 A JP2006077521 A JP 2006077521A JP 2004264817 A JP2004264817 A JP 2004264817A JP 2004264817 A JP2004264817 A JP 2004264817A JP 2006077521 A JP2006077521 A JP 2006077521A
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girder
bridge
work vehicle
frame
suspension
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JP2004264817A
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Japanese (ja)
Inventor
Yoshihiro Fujiki
Tsutomu Harada
Toshikatsu Hatajima
Hitoshi Kasahara
Eiji Takahashi
Tadahiko Tawara
勉 原田
忠彦 田原
敏勝 畑島
等 笠原
慶博 藤木
栄治 高橋
Original Assignee
Kawada Construction Co Ltd
Kitagawa Iron Works Co Ltd
Mitsui Miike Mach Co Ltd
Oriental Construction Co Ltd
Taisei Corp
オリエンタル建設株式会社
大成建設株式会社
川田建設株式会社
株式会社三井三池製作所
株式会社北川鉄工所
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Application filed by Kawada Construction Co Ltd, Kitagawa Iron Works Co Ltd, Mitsui Miike Mach Co Ltd, Oriental Construction Co Ltd, Taisei Corp, オリエンタル建設株式会社, 大成建設株式会社, 川田建設株式会社, 株式会社三井三池製作所, 株式会社北川鉄工所 filed Critical Kawada Construction Co Ltd
Priority to JP2004264817A priority Critical patent/JP2006077521A/en
Publication of JP2006077521A publication Critical patent/JP2006077521A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a bridge constructing apparatus which can construct a corrugated steel web prestressed concrete bridge having a wide width and driven with a heavy weight, according to a cantilever method, and further can construct a cable-stayed bridge which employs a steel member as a main girder joint portion, having a heavy weight at a joint portion block, and also employs the steel member as a transverse girder, to thereby have a further increased weight. <P>SOLUTION: The bridge constructing apparatus is formed of a hung-type movable work vehicle 2 having base frames 21 and overhanging frames 23, and a support-type movable work vehicle 3 having suspension frames 33 and support frames 34. Each base frame 21 is mounted on an upper surface of an upper girder 11 constituting a girder 1 arranged on bridge piers, in a manner reciprocating in a bridge axial direction, and provided with a fixing device for being fixed to the upper girder 11. Each overhanging frame 23 extends from the base frame 21 so as to overhang above the front of the base frame 21, and exhibits a portal shape with its lower ends opened, as viewed in a front elevation. The overhanging frame 23 has arranged thereon suspension devices for suspending and supporting corrugated web members and forms. Each suspension frame 33 is suspended from a lower surface of a lower girder 12 constituting the girder 1 in a manner reciprocating in the bridge axial direction. Each support frame 34 is arranged in front of the suspension frame 33 and extends in a direction perpendicular to a bridge axis. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、波形鋼板ウェブプレストレスコンクリート橋の橋梁構築装置に関するものである。 The present invention relates to a bridge construction apparatus for corrugated steel web prestressed concrete bridges.

従来、プレストレスコンクリート箱桁橋において、コンクリート製のウェブに代えて波形鋼板ウェブを用いた波形鋼板ウェブプレストレスコンクリート橋が知られている。 Conventionally, in a prestressed concrete box girder bridge, a corrugated steel web prestressed concrete bridge using a corrugated steel web instead of a concrete web is known.

この波形鋼板ウェブプレストレスコンクリート橋は、ウェブを軽量な波形の鋼板に置き換えたもので、自重の大幅な軽減が図れ、長支間化に対応し、更に、施工の合理化や工期の短縮を図ることができ、更に、波形加工により高い剪断座屈耐力が補助材なしに得られるなどの利点がある。   This corrugated steel web prestressed concrete bridge replaces the web with a light corrugated steel sheet, greatly reduces its own weight, supports longer spans, and streamlines construction and shortens construction time. Furthermore, there is an advantage that a high shear buckling strength can be obtained without an auxiliary material by corrugation.

このような波形鋼板ウェブプレストレスコンクリート橋の橋梁構築手段の一つとして片持架設工法が知られている。 A cantilever erection method is known as one of bridge construction means for such a corrugated steel web prestressed concrete bridge.

この片持架設工法が、特開2001−020227号公報、特開2002−021024号公報、特開2003−166215号公報、特開2003−193430号公報、特開2003−301415号公報などに提示されており、
、これらの片持架設工法には、図14及び図15に示すように、橋脚(図示せず)上に設けた桁1における上桁11の上面に所定間隔を有して橋軸方向へ設置された一対のレール113,113に走行可能に嵌装される移動用ローラ211,211を有する後部下方に固定装置212を配置したフレーム状の基部フレーム21と、前記基部フレーム21の前部上方に張り出して連設された下方を開放した正面門形で波形鋼板ウェブ部材Wや型枠Mなどを吊り下げ支持するための吊下げ部材221を配置した張出しフレーム22とを備えた吊下げ型移動作業車2が用いられる。 In these cantilever erection methods, as shown in FIGS. 14 and 15, the girders 1 provided on the piers (not shown) are installed on the upper surface of the upper girder 11 with a predetermined interval in the bridge axis direction. A frame-shaped base frame 21 having a moving rollers 211 and 211 movably fitted on the pair of rails 113 and 113 and having a fixing device 212 arranged below the rear portion, and above the front portion of the base frame 21. Suspended type moving work provided with an overhanging frame 22 in which a hanging member 221 for suspending and supporting a corrugated steel plate web member W, a formwork M, etc. is provided in a front gate shape that is overhanging and continuously installed and is open downward. Car 2 is used. This cantilever erection method is presented in Japanese Patent Laid-Open Nos. 2001-020227, 2002-021024, 2003-166215, 2003-193430, 2003-301415, and the like. And This cantilever erection method is presented in Japanese Patent Laid-Open Nos. 2001-020227, 2002-021024, 2003-166215, 2003-193430, 2003-301415, and the like. And
In these cantilever erection methods, as shown in FIGS. 14 and 15, the upper surface of the upper girder 11 of the girder 1 provided on the bridge pier (not shown) has a predetermined interval and is installed in the bridge axis direction. A frame-like base frame 21 in which a fixing device 212 is disposed below a rear portion having moving rollers 211 and 211 that are movably fitted to a pair of rails 113 and 113, and a front portion of the base frame 21. Suspension type moving work provided with an overhanging frame 22 provided with a hanging member 221 for hanging and supporting a corrugated steel sheet web member W, a formwork M, etc., in a front gate shape that is extended and continuously opened and opened downward. Car 2 is used. In these cantilever erection methods, as shown in FIGS. 14 and 15, the upper surface of the upper girder 11 of the girder 1 provided on the bridge pier (not shown) has a predetermined interval and is installed in the bridge axis direction. frame-like base frame 21 in which a fixing device 212 is disposed below a rear portion having moving wooden 211 and 211 that are movably fitted to a pair of rails 113 and 113, and a front portion of the base frame 21. Suspension type moving work provided with an overhanging frame 22 provided with a hanging member 221 for hanging and supporting a corrugated steel sheet web member W, a formwork M, etc., in a front gate shape that is extended and continuously opened and opened downward. Car 2 is used.

即ち、橋脚に配置、固定した移動作業車2の中で、型枠の組み立て、鉄筋およびプレストレスコンクリート鋼棒の配置、コンクリートの打設、養生後のプレストレスの導入を一体的に行い、このサイクルを順次移動作業車2を駆動装置213により前進させて桁11を張り出していく、いわゆる、片持ち架設工法により構築され、このとき、波形鋼板ウェブは。図13に示すように、例えば前記型枠Mに合わせて縦方向に適宜分割された複数の波形鋼板ウェブ部材Wを門型の張出しフレーム22に設けた橋軸方向へ延びるメインフレーム23に、走行可能に吊り下げた波形鋼板ウェブ部搬送装置231により順次、配置位置に搬送して型枠Mの上枠M1下枠M2に固定連結し、コンクリートを打設して桁Hを順次張り出して構築するものである。   That is, in the mobile work vehicle 2 placed and fixed on the bridge pier, the assembly of the formwork, the placement of the reinforcing bars and the prestressed concrete steel bar, the placement of the concrete, and the introduction of the prestress after curing are carried out integrally. The cycle is sequentially constructed by a so-called cantilever construction method in which the movable work vehicle 2 is advanced by the drive device 213 and the girders 11 are projected. As shown in FIG. 13, for example, a plurality of corrugated steel sheet web members W appropriately divided in the vertical direction according to the formwork M are traveled on the main frame 23 extending in the bridge axis direction provided in the portal-type projecting frame 22. The corrugated steel sheet web part conveying device 231 suspended as possible is sequentially conveyed to the arrangement position and fixedly connected to the upper frame M1 and the lower frame M2 of the formwork M, and the concrete is cast and the girder H is sequentially extended. Is.

この片持架設工法は、支保工の建設が困難な山間渓谷、流量の多い河川、船舶の航行する海上での長大スパン橋梁の建設に最適であり、桁橋だけでなく、エクストラード橋(斜張橋)、アーチ橋の施工などにも利用されている。   This cantilever construction method is most suitable for the construction of mountain valleys, high-flow rivers, and long span bridges on the sea where ships are navigating. Zhang Bridge) and arch bridge construction.

しかしながら、前記従来の移動作業車2を用いる片持架設工法において、例えば橋幅が40mを越えるような幅広な橋を構築する場合には打設重量が大きく、更に、作業員が作業するための広範な足場が必要となるなど移動作業車2の支持荷重(支点反力)が大きくなり、張出しフレーム22で支えることが困難な場合が生じる。   However, in the cantilever erection method using the conventional mobile work vehicle 2, for example, when a wide bridge having a bridge width exceeding 40 m is constructed, the driving weight is large, and the worker is required to work. The support load (fulcrum reaction force) of the mobile work vehicle 2 becomes large because a wide range of scaffolding is required, and it may be difficult to support it with the overhanging frame 22.

殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号
In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号
In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号
In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号
In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号
In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A
殊に、エクストラード橋(斜張橋)の場合には、斜材(ケーブル)、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加する。
特開2001−020227号特開2002−021024号特開2003−166215号特開2003−193430号特開2003−301415号
In particular, in the case of an extra bridge (cable stayed bridge), the diagonal member (cable), the joint part of the main girder is a steel member and the joint block is heavy, and the cross girder is also a steel member. Will increase.
JP 2001-020227 A JP 2002-021024 JP 2003-166215 A JP 2003-193430 A JP 2003-301415 A

本発明が解決しようとする課題は、橋幅が広大な波形鋼板ウェブプレストレスコンクリート橋を片持架設工法により構築する場合には1ブロックの打設重量が大きく、吊下げ型移動作業車の支持荷重(支点反力)が大きくなり、張出しフレームでウェブ、型枠、多くの足場や作業員を保持しながらコンクリートを打設することが困難である、という点である。   The problem to be solved by the present invention is that when a corrugated steel web prestressed concrete bridge with a wide bridge width is constructed by a cantilever erection method, the placement weight of one block is large, and the suspension type mobile work vehicle is supported. The load (fulcrum reaction force) becomes large, and it is difficult to place concrete while holding the web, formwork, many scaffolds and workers with the overhanging frame.

前記課題を解決するため、本発明である橋梁構築装置は、橋脚上に設けた桁を構成する上桁の上面に橋軸方向へ往復動可能に載置され後部下方に固定装置を配置したフレーム状の基部フレームと、前記基部フレームの前部上方に張り出して連設され下方を開放した正面門形で波形鋼板ウェブ部材や型枠などを吊り下げ支持するための吊下げ部材を配置した張出しフレームとを備えた吊下げ型移動作業車と、前記桁を構成する下桁の下面に橋軸方向へ往復動可能に懸吊される橋軸方向へ延びる懸吊フレームの前方に橋軸直角方向に延びる支持フレームを有する支え型移動作業車とからなることを特徴とする。   In order to solve the above-mentioned problem, a bridge construction device according to the present invention is a frame in which an upper girder constituting a girder provided on a bridge pier is mounted so as to be able to reciprocate in the direction of the bridge axis, and a fixing device is disposed below the rear part. And a hanging frame for hanging and supporting a corrugated steel web member, a formwork, etc. in a front gate shape that is extended and connected to the upper part of the front part of the base frame and opened downward. A suspension-type mobile work vehicle including a suspension frame, and a suspension frame that extends in a bridge axis direction that is suspended so as to reciprocate in a bridge axis direction on a lower surface of a lower girder constituting the girder in a direction perpendicular to the bridge axis. And a support-type mobile work vehicle having an extended support frame.

また、前記吊下げ型移動作業車の張出しフレームと、前記支え型移動作業車の支持フレームとが離脱可能に連結され、前記吊下げ型移動作業車と支え型移動作業車とが一体的に橋軸方向前方へ向けて移動可能であるとよい。   In addition, an extension frame of the suspension type mobile work vehicle and a support frame of the support type mobile work vehicle are detachably connected, and the suspension type mobile work vehicle and the support type mobile work vehicle are integrated with each other as a bridge. It is good to be able to move forward in the axial direction.

更に、前記桁における吊下げ型移動作業車の荷重が加わる位置と、前記支え型移動作業車の荷重が加わる位置とが橋軸直角方向において互いに所定間隔を有して設置されていると好ましい。   Furthermore, it is preferable that the position where the load of the suspension type mobile work vehicle is applied to the beam and the position where the load of the support type mobile work vehicle is applied are arranged at a predetermined interval in the direction perpendicular to the bridge axis.

吊下げ型移動作業車と支え型移動作業車とを併用することにより、幅広で打設重量が大きい波形鋼板ウェブプレストレスコンクリート橋の張り出し工法による構築を可能にし、更には、主桁の接合部が鋼部材で接合部ブロック重量が大きく、また、横桁も鋼部材であり、更に重量が増加するエクストラード橋(斜張橋)の構築をも可能とした。また、前記吊下げ型移動作業車の張出しフレームと、前記支え型移動作業車の支持フレームとが離脱可能に連結され、前記吊下げ型移動作業車と支え型移動作業車とが一体的に橋軸方向前方へ向けて移動可能であると、吊下げ型移動作業車と支え型移動作業車とを一緒に移動させることができるので、移動時における両者の位置合わせをする必要がないばかりか何れか一方の駆動装置により両者を移動させることもできる。尚、吊下げ型移動作業車と支え型移動作業車と個別的に移動可能にしておくと、型枠位置などの微調整が可能となる等の利点がある。更に、前記桁における吊下げ型移動作業車の荷重が加わる位置と、前記支え型移動作業車の荷重が加わる位置とが橋軸直角方向において互いに所定間隔を有して設置されていることにより、各移動作業車により桁に加わる荷重を平均化して一部に負担が掛かることを防止する。   By using a suspension-type mobile work vehicle and a support-type mobile work vehicle together, it is possible to construct a corrugated steel web prestressed concrete bridge with a wide and heavy casting weight by the overhang construction method. It is possible to construct an extra bridge (cable stayed bridge) which is a steel member and has a large joint block weight, and the cross beam is also a steel member, and the weight further increases. In addition, an extension frame of the suspension type mobile work vehicle and a support frame of the support type mobile work vehicle are detachably connected, and the suspension type mobile work vehicle and the support type mobile work vehicle are integrated with each other as a bridge. If it is possible to move forward in the axial direction, the suspended mobile work vehicle and the support-type mobile work vehicle can be moved together, so there is no need to align the two during movement. Both of them can be moved by one of the driving devices. It should be noted that if the suspension-type mobile work vehicle and the support-type mobile work vehicle are individually movable, there is an advantage that fine adjustment of the formwork position and the like is possible. Furthermore, the position where the load of the suspension type mobile work vehicle in the girder and the position where the load of the support type mobile work vehicle is applied are installed at a predetermined interval in the direction perpendicular to the bridge axis, The load applied to the girder by each mobile work vehicle is averaged to prevent a part of the load from being applied.

次に、本発明を実施するための最良の形態について説明する。   Next, the best mode for carrying out the present invention will be described.

図1乃至図6は本発明の好ましい実施の形態を示すものであり、本発明である橋梁構築装置は、主として橋脚(図示せず)上に設けた桁1を構成する上桁11の上面111に配置される吊下げ型移動作業車2と、前記桁1を構成する下桁12の下面121に配置される支え型移動作業車3とから構成される。   1 to 6 show a preferred embodiment of the present invention, and a bridge construction apparatus according to the present invention mainly includes an upper surface 111 of an upper girder 11 constituting a girder 1 provided on a pier (not shown). The suspension type mobile work vehicle 2 disposed on the lower part of the lower girder 12 and the support type mobile work vehicle 3 disposed on the lower surface 121 of the lower girder 12.

そして、前記吊下げ型移動作業車2は、橋脚(図示せず)上に設けた桁1における上桁11の上面111に所定間隔を有して橋軸方向へ設置された二対のレール113,113及び113,113にそれぞれ走行可能に配置されて橋軸直角方向に並設された2台の作業車2A,2Bから構成される。   The suspended mobile work vehicle 2 has two pairs of rails 113 installed in the bridge axis direction with a predetermined interval on the upper surface 111 of the upper girder 11 of the girder 1 provided on the bridge pier (not shown). , 113 and 113, 113 are arranged so as to be able to travel, and are composed of two work vehicles 2A, 2B arranged in parallel in a direction perpendicular to the bridge axis.

前記2台の作業車2A,2Bは、左右対称の同形であり、桁1における上桁11の上面111に所定間隔を有して橋軸方向へ設置された一対のレール113,113にそれぞれ走行可能に嵌装される移動用ローラ211,211を有する後部下方に移動時の転倒を防止するための固定装置212および打設作業時の転倒を防止する固定装置213とを配置したフレーム状の基部フレーム21と、前記基部フレーム21の前部上方に張り出して連設された下方を開放した正面門形の張出しフレーム22とを有している。   The two work vehicles 2A and 2B are symmetrical and have the same shape, and travel on a pair of rails 113 and 113 installed in the bridge axis direction at a predetermined interval on the upper surface 111 of the upper girder 11 in the girder 1, respectively. A frame-like base portion in which a fixing device 212 for preventing a fall at the time of movement and a fixing device 213 for preventing a fall at the time of driving work are arranged below the rear portion having movable rollers 211 and 211 that can be fitted. It has a frame 21 and a front gate-shaped projecting frame 22 that projects from the upper part of the front part of the base frame 21 and is continuously connected to the lower part.

また、前記作業車2A,2Bの各基部フレーム21と張出しフレーム22にわたって、橋軸方向に伸びる支持レール231に橋軸直角方向に伸びる吊下げフレーム232が橋軸方向に往復動可能に懸吊されているとともに、吊下げフレーム232に波形鋼板ウェブ部材W(左側分割体W1,中央部分割体W2,右側分割体W3)の搬入装置24がそれぞれ懸装されている。   A suspension frame 232 extending in a direction perpendicular to the bridge axis is suspended from the support frame 231 extending in the bridge axis direction so as to reciprocate in the bridge axis direction over the base frame 21 and the overhanging frame 22 of the work vehicles 2A and 2B. In addition, the corrugated steel sheet web member W (the left divided body W1, the central divided body W2, and the right divided body W3) is suspended from the suspension frame 232, respectively.

一方、支え型移動作業車3は、前記桁1における桁張り出し端部の少なくとも平面から見て前後左右位置に貫通、固着されたワーゲンアンカー31・・31の下桁12の下面121からの突出端に配置された吊車32・・32によって橋軸方向に移動可能に吊り下げられた橋軸方向に延びる一対の基体フレーム33,33と、これらの懸吊フレーム33,33の先端に直交して配置される所定幅を有する支持フレーム34,34により主要部分が構成される。   On the other hand, the support type mobile work vehicle 3 has a protruding end from the lower surface 121 of the lower girder 12 of the lower girder 12 that is penetrated and fixed to the front / rear / right / left positions as seen from at least the plane of the girder protruding end portion of the girder 1 A pair of base frames 33, 33 extending in the direction of the bridge axis suspended so as to be movable in the direction of the bridge axis by suspension vehicles 32,. The main part is constituted by the support frames 34 and 34 having a predetermined width.

また、前記移動作業車3の懸吊フレーム33,33及び支持フレーム34,34には、ほぼ全面にわたって多数の足場4が架設されており、作業員は吊下げ型移動作業車2と支え型移動作業車3との間を両者の間に架設された階段41を使って行き来することができる。   The suspension frames 33 and 33 and the support frames 34 and 34 of the mobile work vehicle 3 are provided with a large number of scaffolds 4 over almost the entire surface, so that the worker can support the suspension-type mobile work vehicle 2 and the support-type movement. It is possible to go back and forth between the work vehicle 3 using the stairs 41 erected between the two.

そして、図2および図3に示すように、桁1における吊下げ型移動作業車2の荷重が加わる各レール113の位置、即ち、吊下げ型移動作業車2の荷重が加わる位置(図に示すA−A線)と、前記支え型移動作業車3の懸吊位置である各ワーゲンアンカー31の位置、即ち、支え型移動作業車3の荷重が加わる位置(図に示すB−B線)とが橋軸直角方向において互いに一致または接近せずに所定の間隔を有して設置されていること、即ち、前記桁1における吊下げ型移動作業車2の荷重が加わる位置と、前記支え型移動作業車3の荷重が加わる位置とが橋軸直角方向において互いに所定間隔を有して設置されていることにより、各移動作業車2,3により桁1に加わる荷重を平均化して桁1の一部に負担が掛かることにより生じる変形や破損を防止する。   2 and 3, the position of each rail 113 to which the load of the suspended mobile work vehicle 2 is applied in the girder 1, that is, the position to which the load of the suspended mobile work vehicle 2 is applied (shown in the drawings). AA line) and the position of each wage anchor 31 that is the suspension position of the support type mobile work vehicle 3, that is, the position to which the load of the support type mobile work vehicle 3 is applied (BB line shown in the figure). Are installed at a predetermined interval in the direction perpendicular to the bridge axis without being coincident or close to each other, that is, the position where the load of the suspension type mobile work vehicle 2 is applied to the girder 1 and the support type movement Since the position of the work vehicle 3 to which the load is applied is installed at a predetermined interval in the direction perpendicular to the bridge axis, the load applied to the beam 1 by each mobile work vehicle 2, 3 is averaged and Deformation or breakage caused by burden on parts The to prevent.

加えて、図7(a)に示すように、前記吊下げ型移動作業車2の張出しフレーム22の橋軸方向先端と、支え型移動作業車3の支持フレーム34の橋軸方向先端とは、張出しフレーム22に設置された吊柱ジャッキ51により吊り上げ可能で且つ下端に配置した支持フレーム34と連結及び切り離し可能な吊柱52により連結されている。   In addition, as shown in FIG. 7A, the bridge axis direction tip of the overhanging frame 22 of the suspension type mobile work vehicle 2 and the bridge axis direction tip of the support frame 34 of the support type mobile work vehicle 3 are: It can be lifted by a suspension column jack 51 installed on the overhanging frame 22 and is connected to a support frame 34 arranged at the lower end by a suspension column 52 that can be connected and disconnected.

更に詳しく説明すると、図7(b)に示すように、吊柱52は下方に形成されている連結部53において吊下げ型移動作業車2の張出しフレーム22と支え型移動作業車3の支持フレーム34とを連結し、或いは切り離す構成である。   More specifically, as shown in FIG. 7 (b), the suspension column 52 is formed at a connecting portion 53 formed below, and the overhang frame 22 of the suspension type mobile work vehicle 2 and the support frame of the support type mobile work vehicle 3. 34 is connected or disconnected.

特に、本実施の形態では図7(b)に示すように、吊柱52に形成されたピン孔521と支持フレーム34側に設置した固定部材54に立設させた嵌合筒541に連通して形成されるピン孔542,542に取り外し式のピン523が嵌装されて連結する構成であり、ピン孔521を長孔とすることで取り外し式のピン523の挿脱を容易にして作業性を高めている。   In particular, in this embodiment, as shown in FIG. 7B, the pin hole 521 formed in the suspension column 52 communicates with the fitting cylinder 541 installed upright on the fixing member 54 installed on the support frame 34 side. The detachable pin 523 is fitted and connected to the pin holes 542 and 542 formed in this manner, and the detachable pin 523 can be easily inserted and removed by making the pin hole 521 a long hole. Is increasing.

このように取り外し式のピン523の挿脱と前記吊下げ型移動作業車2の張出しフレーム22に設置された吊柱ジャッキ51の上下動作により吊柱52による吊下げ型移動作業車2と支え型移動作業車3の連結と切り離しを行うものであり、吊柱ジャッキ51は吊下げ型移動作業車2と支え型移動作業車3の合計撓み以上のストロークを有している。そのため、吊柱52で吊下げ型移動作業車2と支え型移動作業車3を互いに連結して一体的に移動させたときに吊柱ジャッキ51のストロークを調節して吊柱52の長さを調節することにより吊下げ型移動作業車2と支え型移動作業車3を一体的に移動させることができるばかりか移動の際にに荷重がアンバランスになるのを確実に防止する。   As described above, the suspension type mobile work vehicle 2 and the support type by the suspension column 52 are formed by inserting / removing the detachable pin 523 and the vertical movement of the suspension column jack 51 installed on the extension frame 22 of the suspension type mobile work vehicle 2. The mobile work vehicle 3 is connected and disconnected, and the suspension column jack 51 has a stroke that is greater than the total deflection of the suspension-type mobile work vehicle 2 and the support-type mobile work vehicle 3. Therefore, when the suspension-type mobile work vehicle 2 and the support-type mobile work vehicle 3 are connected to each other by the suspension column 52 and moved together, the stroke of the suspension column jack 51 is adjusted to increase the length of the suspension column 52. By adjusting, the suspended mobile work vehicle 2 and the support-type mobile work vehicle 3 can be moved together, and the load is reliably prevented from being unbalanced during the movement.

図8乃至図13は本実施の形態についての架設作業の手順を示すものであり、図8に示すように、吊下げ型移動作業車2を走行レール113に沿って所定位置に前進させる。このとき、吊柱52により吊下げ型移動作業車2と支え型移動作業車3とが連結されているので吊下げ型移動作業車2所定位置に移動するだけで支え型移動作業車3も一緒に所定位置に移動するので支え型移動作業車3の位置合わせをする必要がなく複雑な制御を必要としないばかりか、何れか一方の駆動により両者を一緒に移動させることもできる。尚、このとき、波形鋼板ウェブ部材(図示せず)の搬入装置24は最後尾に位置している。   FIGS. 8 to 13 show the procedure of the erection work according to the present embodiment. As shown in FIG. 8, the suspended mobile work vehicle 2 is advanced to a predetermined position along the traveling rail 113. At this time, since the suspension type mobile work vehicle 2 and the support type mobile work vehicle 3 are connected by the suspension pillar 52, the support type mobile work vehicle 3 is also moved together only by moving to the predetermined position. Therefore, the support-type mobile work vehicle 3 does not need to be aligned and complicated control is not required, and both of them can be moved together by driving one of them. At this time, the carry-in device 24 for the corrugated steel web member (not shown) is located at the end.

次に、図9に示すように、ジャッキなどからなる固定装置6,6により、吊下げ型移動作業車2を桁1に固定するとともに、運搬台車7により運ばれてきた波形鋼板ウェブ部材W(左側分割体W1,中央部分割体W2,右側分割体W3)を吊り上げる。更に、吊柱52の下端と支え型移動作業車3との連結を解除して吊柱52をジャッキ51により吊り上げる。   Next, as shown in FIG. 9, the corrugated steel web member W ( The left divided body W1, the central divided body W2, and the right divided body W3) are lifted. Further, the connection between the lower end of the suspension column 52 and the support type mobile work vehicle 3 is released, and the suspension column 52 is lifted by the jack 51.

更に、図10に示すように、搬入装置24により波形鋼板ウェブ部材W(左側分割体W1,中央部分割体W2,右側分割体W3)を前方の所定位置に搬送する。   Further, as shown in FIG. 10, the corrugated steel sheet web member W (the left divided body W <b> 1, the central divided body W <b> 2, and the right divided body W <b> 3) is conveyed to a predetermined position in front by the carry-in device 24.

そして、図11に示すように、従来の吊下げ型移動作業車2と同様に、下型枠M及び下型枠支持梁7(横梁、縦梁)をセットする。このとき、吊柱52による吊下げ型移動作業車2とと支え型移動作業車3との連結が解除されているので吊下げ型移動作業車2と支え型移動作業車3とが個別的に移動可能であり、例えば型枠位置などの微調整をするなど吊下げ型移動作業車2または支え型移動作業車3それぞれの個別的な使用目的に応じて適宜移動させることもできる。   Then, as shown in FIG. 11, the lower mold frame M and the lower mold frame support beam 7 (horizontal beam, vertical beam) are set in the same manner as in the conventional suspended mobile work vehicle 2. At this time, since the connection between the suspension type mobile work vehicle 2 and the support type mobile work vehicle 3 by the suspension pillar 52 is released, the suspension type mobile work vehicle 2 and the support type mobile work vehicle 3 are individually connected. It can be moved, and for example, it can be appropriately moved according to the individual purpose of use of the suspension type mobile work vehicle 2 or the support type mobile work vehicle 3 such as fine adjustment of the position of the formwork.

次いで、図12に示すように打設作業を行い、次いで、下型枠M及び下型枠支持梁7を外して支え型移動作業車3上に降ろして、図12に示すように1ブロック分の架設が完了するのでジャッキ51により吊柱52を下降させて吊柱52の下端と支え型移動作業車3とを連結して、吊下げ型移動作業車2とを支え型移動作業車3とを一体的に前方に移動させて前記図7に示した最初の状態に戻し、この行程を順次繰り返して架設作業を行うものである。   Next, the placing work is performed as shown in FIG. 12, and then the lower mold frame M and the lower mold support beam 7 are removed and lowered onto the support type moving work vehicle 3, and as shown in FIG. Thus, the suspension column 52 is lowered by the jack 51 to connect the lower end of the suspension column 52 and the support type mobile work vehicle 3, and the suspension type mobile work vehicle 2 is connected to the support type mobile work vehicle 3. Are integrally moved forward to return to the initial state shown in FIG. 7, and this process is sequentially repeated to perform the installation work.

本発明の好ましい実施の形態を示す側面図。 The side view which shows preferable embodiment of this invention. 図1に示した実施の形態の平面図。 The top view of embodiment shown in FIG. 図1に示した実施の形態の正面図。 The front view of embodiment shown in FIG. 図2のIV−IV線に沿う断面図。 Sectional drawing which follows the IV-IV line | wire of FIG. 図2のV−V線に沿う断面図。 Sectional drawing which follows the VV line | wire of FIG. 図1に示した実施の形態における支え型移動作業車を示す平面図。 The top view which shows the support type | mold mobile work vehicle in embodiment shown in FIG. 図1に示した実施の形態の吊柱部分を示す説明図。 Explanatory drawing which shows the suspension pole part of embodiment shown in FIG. 図1に示した実施の形態の使用状態を示す説明図。 Explanatory drawing which shows the use condition of embodiment shown in FIG. 図1に示した実施の形態の使用状態を示す説明図。 Explanatory drawing which shows the use condition of embodiment shown in FIG. 図1に示した実施の形態の使用状態を示す説明図。 Explanatory drawing which shows the use condition of embodiment shown in FIG. 図1に示した実施の形態の使用状態を示す説明図。 Explanatory drawing which shows the use condition of embodiment shown in FIG. 図1に示した実施の形態の使用状態を示す説明図。 Explanatory drawing which shows the use condition of embodiment shown in FIG. 図1に示した実施の形態の使用状態を示す説明図。 Explanatory drawing which shows the use condition of embodiment shown in FIG. 従来例を示す側面図。 The side view which shows a prior art example. 従来例を示す正面図。 The front view which shows a prior art example.

符号の説明Explanation of symbols

1 桁、 2 吊り下げ型の移動作業車、 3 支え型移動作業車、 11 上桁、 12 下桁、 21 基部フレーム、 23 張出しフレーム、 24 吊下げ部材、 33 懸吊フレーム、 34 支持フレーム
1 digit, 2 suspension-type mobile work vehicle, 3 support-type mobile work vehicle, 11 upper girder, 12 lower girder, 21 base frame, 23 overhang frame, 24 suspension member, 33 suspension frame, 34 support frame

Claims (3)

  1. 橋脚上に設けた桁を構成する上桁の上面に橋軸方向へ往復動可能に載置されているとともに前記上桁への固定装置を配置したフレーム状の基部フレームと、前記基部フレームの前部上方に張り出して連設され下方を開放した正面門形で波形鋼板ウェブ部材や型枠などを吊り下げ支持するための吊下げ装置を配置した張出しフレームとを備えた吊下げ型移動作業車と、前記桁を構成する下桁の下面に橋軸方向へ往復動可能に懸吊される橋軸方向へ延びる懸吊フレームの前方に橋軸直角方向に延びる支持フレームを有する支え型移動作業車とからなることを特徴とする橋梁構築装置。   A frame-like base frame which is mounted on the upper surface of the upper girder constituting the girder provided on the pier so as to be able to reciprocate in the direction of the bridge axis and which has a fixing device for the upper girder, and the front of the base frame A suspension-type mobile work vehicle including a projecting frame in which a suspension device for hanging and supporting a corrugated steel sheet web member, a formwork, etc. is suspended in a front gate shape that projects continuously upward and is opened downward. A support-type mobile work vehicle having a support frame extending in a direction perpendicular to the bridge axis in front of a suspension frame extending in the bridge axis direction that is suspended so as to reciprocate in the bridge axis direction on the lower surface of the lower girder constituting the girder; A bridge construction apparatus characterized by comprising:
  2. 前記吊下げ型移動作業車の張出しフレームと、前記支え型移動作業車の支持フレームとが離脱可能に連結され、前記吊下げ型移動作業車と支え型移動作業車とが一体的に橋軸方向前方に向けて移動可能である請求項1に記載の橋梁構築装置。   The projecting frame of the suspension type mobile work vehicle and the support frame of the support type mobile work vehicle are detachably connected, and the suspension type mobile work vehicle and the support type mobile work vehicle are integrated in the direction of the bridge axis. The bridge construction device according to claim 1, which is movable forward.
  3. 前記桁における吊下げ型移動作業車の荷重が加わる位置と、前記支え型移動作業車の荷重が加わる位置とが橋軸直角方向において互いに所定間隔を有している請求項1又は2に記載の橋梁構築装置。
    The position where the load of the suspension type mobile work vehicle in the girder is applied and the position where the load of the support type mobile work vehicle is applied have a predetermined distance from each other in the direction perpendicular to the bridge axis. Bridge construction device.
JP2004264817A 2004-09-13 2004-09-13 Bridge constructing apparatus Pending JP2006077521A (en)

Priority Applications (1)

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JP2004264817A JP2006077521A (en) 2004-09-13 2004-09-13 Bridge constructing apparatus

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101725115B (en) * 2009-12-18 2011-05-04 中铁大桥局集团第二工程有限公司 Fixed hoisting bracket device for pushing steel box girder and construction method thereof
CN102251480A (en) * 2011-04-29 2011-11-23 湖南中铁五新钢模有限责任公司 Small pier top construction triangular hanging basket
CN103147409A (en) * 2013-02-05 2013-06-12 中交一公局厦门工程有限公司 Closing construction method for steel bar-concrete superposed beam cable-stayed bridge
CN103437302A (en) * 2013-08-21 2013-12-11 中交二公局第一工程有限公司 Hanging basket construction method for suspension pouring section of single cable plane cable-stayed bridge
CN103485283A (en) * 2013-09-11 2014-01-01 中交第一公路工程局有限公司 Hanging bracket supporting system of side-span cast-in-place section and implementation method thereof
CN103603275A (en) * 2013-10-22 2014-02-26 中铁大桥局集团第四工程有限公司 System and method for sliding segment steel box beam ashore
CN103628422A (en) * 2013-10-30 2014-03-12 中建三局建设工程股份有限公司 Counter-force type stay rope hanging basket prepressing device and implement method thereof
CN103669211A (en) * 2013-08-22 2014-03-26 中铁四局集团有限公司 Hydraulic type multifunctional suspension-assembling girder lifting machine and steel box girder assembling method
CN106284103A (en) * 2016-08-22 2017-01-04 中国铁建大桥工程局集团有限公司 Steel reinforced concrete combination beam roof steel bar concrete high-altitude cantilever pouring construction method
KR101770230B1 (en) * 2015-07-17 2017-08-22 다올이앤씨 주식회사 Form traveller
CN110616635A (en) * 2019-08-12 2019-12-27 中交二航局第二工程有限公司 Closure structure and lowering dislocation closure method of hybrid beam rigid frame bridge under strong surge condition
CN110616636A (en) * 2019-08-12 2019-12-27 中交二航局第二工程有限公司 Closure structure of hybrid beam rigid frame bridge under strong surge condition and method for lifting staggered closure

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101725115B (en) * 2009-12-18 2011-05-04 中铁大桥局集团第二工程有限公司 Fixed hoisting bracket device for pushing steel box girder and construction method thereof
CN102251480A (en) * 2011-04-29 2011-11-23 湖南中铁五新钢模有限责任公司 Small pier top construction triangular hanging basket
CN102251480B (en) * 2011-04-29 2013-05-29 湖南中铁五新钢模有限责任公司 Small pier top construction triangular hanging basket
CN103147409A (en) * 2013-02-05 2013-06-12 中交一公局厦门工程有限公司 Closing construction method for steel bar-concrete superposed beam cable-stayed bridge
CN103147409B (en) * 2013-02-05 2015-02-04 中交一公局厦门工程有限公司 Closing construction method for steel bar-concrete superposed beam cable-stayed bridge
CN103437302A (en) * 2013-08-21 2013-12-11 中交二公局第一工程有限公司 Hanging basket construction method for suspension pouring section of single cable plane cable-stayed bridge
CN103669211A (en) * 2013-08-22 2014-03-26 中铁四局集团有限公司 Hydraulic type multifunctional suspension-assembling girder lifting machine and steel box girder assembling method
CN103485283A (en) * 2013-09-11 2014-01-01 中交第一公路工程局有限公司 Hanging bracket supporting system of side-span cast-in-place section and implementation method thereof
CN103603275A (en) * 2013-10-22 2014-02-26 中铁大桥局集团第四工程有限公司 System and method for sliding segment steel box beam ashore
CN103628422A (en) * 2013-10-30 2014-03-12 中建三局建设工程股份有限公司 Counter-force type stay rope hanging basket prepressing device and implement method thereof
CN103628422B (en) * 2013-10-30 2016-04-13 中建三局建设工程股份有限公司 A kind of anti-force type dragging suspension basket prepressing device and implementation method thereof
KR101770230B1 (en) * 2015-07-17 2017-08-22 다올이앤씨 주식회사 Form traveller
CN106284103A (en) * 2016-08-22 2017-01-04 中国铁建大桥工程局集团有限公司 Steel reinforced concrete combination beam roof steel bar concrete high-altitude cantilever pouring construction method
CN106284103B (en) * 2016-08-22 2018-01-02 中国铁建大桥工程局集团有限公司 Steel reinforced concrete combination beam roof steel bar concrete high-altitude cantilever pouring construction method
CN110616635A (en) * 2019-08-12 2019-12-27 中交二航局第二工程有限公司 Closure structure and lowering dislocation closure method of hybrid beam rigid frame bridge under strong surge condition
CN110616636A (en) * 2019-08-12 2019-12-27 中交二航局第二工程有限公司 Closure structure of hybrid beam rigid frame bridge under strong surge condition and method for lifting staggered closure

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