JP3240244U - Split-type horizontal beam construction structure erected on the gate-type bridge pier of the existing railway line - Google Patents

Split-type horizontal beam construction structure erected on the gate-type bridge pier of the existing railway line Download PDF

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JP3240244U
JP3240244U JP2022003487U JP2022003487U JP3240244U JP 3240244 U JP3240244 U JP 3240244U JP 2022003487 U JP2022003487 U JP 2022003487U JP 2022003487 U JP2022003487 U JP 2022003487U JP 3240244 U JP3240244 U JP 3240244U
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劉東亮
白朝能
賈登峰
黄泰烈
李▲イェ▼
祝培林
田波
杜暁冬
馮彦青
高党利
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China Railway Xi'an Survey Design And Research Institute Co Ltd
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Abstract

【課題】既設鉄道線路の門型橋脚に架設される分割式横梁施工構造を提供する。【解決手段】分割式横梁施工構造は、支持構造および押上構造を含み、支持構造は現場打設横梁ブラケット4と砂箱10を含み、現場打設横梁ブラケットは下部立柱と上部鋼トラスを含み、砂箱が立柱の上部と鋼トラスの底部間に設けられ、押上構造はシュート7とシュートサポート12を含み、シュートは現場打設横梁ブラケットの前後両側に横方向に設けられ、シュートは現場打設横梁ブラケットの左端から2つの橋脚柱間に延伸し、シュートサポートはシュートの下方に位置する。横梁初回現場打設セグメント1をさらに含み、現場打設横梁ブラケットの鋼トラスの上部に配置される。既設鉄道線路の外側に現場で横梁初回現場打設セグメントを打設し、押上構造を利用して設計位置に横方向に押し、次に横梁端部に二回湿式接合させ橋脚柱に連結させる。【選択図】図3A split-type cross-beam construction structure to be erected on a gate-type bridge pier of an existing railroad track is provided. A split-type crossbeam construction structure includes a support structure and a lift structure, the support structure includes a cast-in-place crossbeam bracket (4) and a sandbox (10), the cast-in-place crossbeam bracket includes a lower standing column and an upper steel truss, A sand box is provided between the top of the standing column and the bottom of the steel truss, the uplift structure includes a chute 7 and a chute support 12, the chute is installed laterally on both front and rear sides of the cast-in-place cross beam bracket, and the chute is cast-in-place. Extending from the left end of the transverse beam bracket between the two pier posts, the chute support is located below the chute. It further includes a cross beam initial cast-in-place segment 1, which is placed on top of the steel truss of the cast-in-place cross beam bracket. The crossbeam first cast-in-place segment is cast on-site outside the existing railroad track, pushed laterally into the design position using a push-up structure, and then wet-jointed twice to the crossbeam ends to connect to the piers. [Selection drawing] Fig. 3

Description

本考案は、鉄道橋梁の橋脚工事建設の技術分野に関し、具体的に既設鉄道線路の門型橋脚に架設された分割式横梁施工構造に関する。 TECHNICAL FIELD The present invention relates to the technical field of bridge pier construction for railway bridges, and more specifically to a split-type cross-beam construction structure for bridge piers of existing railway tracks.

橋梁橋脚は、橋梁を支持する主な構造物であり、橋梁構造からの荷重をすべて負担し垂直荷重を橋梁基礎に伝達する役割を担って、橋脚は十分な強度、剛性および安定性などの支持機能に加えて、架設機能を有する必要もある。 A bridge pier is the main structure that supports a bridge. It bears all the loads from the bridge structure and plays the role of transmitting the vertical load to the bridge foundation. In addition to function, it must also have an erection function.

鉄道橋の橋脚は一般、長方形、円形、円端の堅固な橋脚が多く、材料は石積み、コンクリート、鉄筋コンクリートなどが使われている。鉄道や高速道路などの交通機関の発達に伴い、インターチェンジが多くなって、地形や交差点の制約から、交差点に必要な橋のスパンはますます大きくなり、構造・施工も複雑になってきており、投資額も増えてきている。インターチェンジに標準スパンのプレハブ橋を使用することは、技術的に成熟しており、施工が簡単であるだけでなく、施工時間を短縮し、投資を節約することができる。したがって、既設鉄道を跨ぐ門型橋脚を先に設計し、門型橋脚の横梁上に単純支持のプレハブT形鋼を架設することは、既設鉄道を跨ぐ標準径間プレハブ橋の利用を実現する重要な方法の1つである。しかし、門型橋脚の横梁は、設計位置にブラケットを設置する現場打ち工法で施工されることが多く、既設ライン、特に交通量の多い幹線の電化鉄道の運行に大きな干渉と影響を与え、ライン閉鎖施工時間は長く、安全上のリスクも高いという問題点がある。 Railroad bridge piers are generally rectangular, circular, or round-ended solid piers, and the materials used include masonry, concrete, and reinforced concrete. With the development of transportation systems such as railroads and expressways, the number of interchanges has increased, and due to restrictions on topography and intersections, the spans of bridges required at intersections have become larger and the structures and construction have become more complex. The amount of investment is also increasing. Using standard-span prefabricated bridges for interchanges is not only technically mature and easy to construct, but also can shorten construction time and save investment. Therefore, it is important to design the gate-type bridge piers that cross the existing railway first, and then erect the simply-supported prefabricated T-shaped steel on the transverse beams of the gate-type bridge piers in order to realize the use of the standard-span prefabricated bridge that crosses the existing railway. is one of the methods. However, the horizontal beams of gate-type bridge piers are often constructed using the cast-in-place method, in which brackets are installed at the design positions. There is a problem that the closing construction time is long and the safety risk is high.

本考案の目的は、従来の横梁施工技術における既設ラインの運転に大きな干渉と影響を与え、ライン閉鎖施工時間は長く、安全上のリスクが高いという問題を少なくとも解決するための、既設鉄道線路の門型橋脚に架設された分割式横梁施工構造を提供することである。 The purpose of the present invention is to at least solve the problems that the conventional cross beam construction technology greatly interferes and affects the operation of the existing line, the line closure construction time is long, and the safety risk is high. To provide a split-type cross beam construction structure erected on a gate-type bridge pier.

上記の目的を達成するために、本考案は以下の技術手段を採用している。
既設鉄道線路の門型橋脚に架設された分割式横梁施工構造は、支持構造および押上構造を含み、
前記支持構造は現場打設横梁ブラケットと砂箱を含み、前記現場打設横梁ブラケットは既設鉄道線路の左側に設けられ、下部立柱と上部鋼トラスを含み、前記砂箱は前記立柱の上部と前記鋼トラスの底部間に設けられ、
前記押上構造はシュートとシュートサポートを含み、2つの前記シュートは現場打設横梁ブラケットの前後両側に横方向に設けられ、前記シュートは前記現場打設横梁ブラケットの左端から2つの橋脚柱間に延伸し、前記シュートサポートは前記シュートの下方に位置する。
さらに、前記施工構造は、横梁初回現場打設セグメントをさらに含み、前記横梁初回現場打設セグメントは前記現場打設横梁ブラケットの鋼トラスの上部に位置し、
前記横梁初回現場打設セグメントの両端に前記シュートに垂直なI形鋼が予め埋め込まれ、前記I形鋼は前記横梁初回現場打設セグメントの前後両側にコルベルを形成し、前記シュートが前記コルベルの下方に位置し、前記コルベルの底面が前記シュートの頂面よりも高い。
さらに、前記コルベルの底面に摺動板が設けられる。
さらに、前記横梁初回現場打設セグメントの横方向両端の端面に露出した鉄筋円筒が予め埋め込まれ、前記鉄筋円筒は横梁初回現場打設セグメントの端面に対して垂直であり横方向に設けられる。
さらに、前記横梁初回現場打設セグメントの底部にコルゲートパイプが予め埋め込まれ、前記コルゲートパイプは横梁初回現場打設セグメントの端面に対して垂直であり横方向に設けられ、
前記コルゲートパイプは横梁初回現場打設セグメントを貫通して設けられ、両端が前記横梁初回現場打設セグメントの横方向両端の端面から露出する。
さらに、前記砂箱内に砂が充填され、前記砂箱内に収容される砂の量を減少することにより前記鋼トラスの高さを低減して、前記コルベルを落下させて前記シュートに支持させることができる。
さらに、前記施工構造は横梁二回湿式接合セグメントをさらに含み、前記横梁二回湿式接合セグメントは前記横梁初回現場打設セグメントの両側に位置し、横梁初回現場打設セグメントの端面に接続され、前記鉄筋円筒と前記コルゲートパイプともに一体に鋳造される。
In order to achieve the above objects, the present invention adopts the following technical means.
The split-type horizontal beam construction structure erected on the gate-type bridge pier of the existing railway line includes a support structure and a push-up structure,
The support structure includes a cast-in-place cross beam bracket and a sand box, the cast-in-place cross beam bracket is installed on the left side of the existing railroad track, and includes a lower standing pillar and an upper steel truss, the sand box comprising the upper part of the standing pillar and the sand box. Provided between the bottoms of the steel trusses,
Said uplift structure includes a chute and a chute support, two said chutes being laterally provided on both front and rear sides of said cast-in-place cross beam bracket, said chute extending from the left end of said cast-in-place cross beam bracket between two pier columns. and the chute support is positioned below the chute.
Further, the installed structure further includes a cross beam first-in-place cast-in-place segment, the cross-beam first-in-place cast-in-place segment located on top of the steel truss of the cast-in-place cross-beam bracket;
I-beams perpendicular to the chute are pre-embedded at both ends of the cross-beam initial pour-in-place segment, the I-beams form corbels on both front and rear sides of the cross-beam first-in-place pour-in-place segment, and the chutes form corbels. Situated below, the bottom surface of the corbel is higher than the top surface of the chute.
Furthermore, a sliding plate is provided on the bottom surface of the corbel.
Further, exposed rebar cylinders are pre-embedded in the lateral end faces of the cross beam initial pour-in-place segment, and the rebar cylinders are perpendicular and lateral to the end faces of the cross-beam initial pour-in-place segment.
Further, a corrugated pipe is pre-embedded in the bottom of the cross beam initial pour-in-place segment, the corrugated pipe is provided perpendicular and transverse to the end face of the cross-beam initial pour-in-place segment,
The corrugated pipe is provided through the cross beam initial pour-in-place segment, and both ends are exposed from the end faces of both lateral ends of the cross-beam first pour-in-place segment.
Further, the sand box is filled with sand to reduce the height of the steel truss by reducing the amount of sand contained in the sand box to allow the corbel to fall and be supported on the chute. be able to.
Further, the construction structure further includes cross beam double wet-joint segments, wherein the cross beam double wet-bond segments are located on both sides of the cross beam first cast-in-place segment and are connected to end faces of the cross beam first cast-in-place segment; Both the reinforcing bar cylinder and the corrugated pipe are integrally cast.

従来技術と比較すると、本考案は以下の有益な効果を有する。
本考案は、門型橋脚の横梁を分割して施工することで、門型橋脚の横梁施工による鉄道運転に対する干渉と影響を減少し、安全保証を高めることができる。まず既設鉄道線路の境界外側支持構造に横梁初回現場打設セグメントを現場で打設し、設計強度に達した後、押上構造を利用して横梁初回現場打設セグメントを設計位置まで横方向に押し、その後横梁端部に二回湿式接合させ橋脚柱に連結させる。横梁二回湿式接合セグメントに加えて、ほとんどの施工は既設鉄道線路の境界外側で完了するため、施工が容易で、鉄道運転への干渉を減少し、施工安全性をより一層向上させることができる。
本考案の施工構造において、横梁初回現場打設セグメントと横梁二回湿式接合セグメントの境界断面に、橋脚柱、横梁二回湿式接合セグメント、横梁初回現場打設セグメントの鉄筋が互いに接続され、横梁二回湿式接合セグメントと横梁初回現場打設セグメントは予め埋め込まれたコルゲートパイプを介してプレストレスト鋼製束を貫通して一体に鋳造され、横梁のコンクリート構造からプレストレストコンクリート構造への転換、および横梁の単純支持構造から連続剛性フレーム体系の円滑な転換を実現する。簡単かつ円滑でスムーズに転換でき、機械的特性が明確であり、施工が簡単で、便利、安全、低コストという利点を有する。また、横梁初回現場打設セグメントの両端にコルベルと摺動板の摺動構造を設けることにより、横梁初回現場打設セグメントの横方向押しがよりスムーズかつ安全で、効率がより高い。
Compared with the prior art, the present invention has the following beneficial effects.
The present invention can reduce the interference and influence on the railway operation caused by the construction of the cross beams of the gate-type bridge piers by dividing the construction of the cross-beams of the gate-type bridge piers, and enhance the safety assurance. First, the cross beam first cast-in-place segment is cast on-site on the existing railroad track boundary outer support structure. , and then wet-bonded twice to the cross beam ends to connect to the piers. In addition to the cross beam double wet joint segment, most of the construction is completed outside the boundary of the existing railway line, which makes construction easier, reduces interference with railway operation, and further improves construction safety. .
In the construction structure of the present invention, the rebars of the pier columns, the two-time wet-joint segments of the cross beams, and the first-time cast-in-place segments of the cross beams are connected to each other at the boundary cross section of the cross beam first-time cast-in-place segment and the cross beam two-time wet-joint segment. Wet-jointed segments and cross-beam first cast-in-place segments are integrally cast through prestressed steel bundles via pre-embedded corrugated pipes to convert cross-beam concrete structures to pre-stressed concrete structures and cross-beam simples. It realizes a smooth transition from the support structure to the continuous rigid frame system. It has the advantages of simple and smooth conversion, clear mechanical properties, simple construction, convenience, safety and low cost. In addition, by providing sliding structures of corbels and sliding plates at both ends of the cross beam initial cast-in-place segment, lateral pushing of the cross-beam first cast-in-place segment is smoother, safer and more efficient.

本考案の実施例または従来技術における技術手段をより明確に説明するために、以下、実施例または従来技術の説明で使用する必要がある図面を簡単に説明するが、明らかに、以下で説明される図面は本考案のいくつかの実施例に過ぎず、当業者にとって、創造的な労働をすることなく、これらの図面に基づいて他の実施例の図面を得ることができる。
実施例の門型橋脚分割式横梁の上面図である。 実施例の現場打設横梁ブラケットの上面図である。 実施例の横梁初回現場打設セグメントの支持構造の側面図である。 実施例の横梁初回現場打設セグメントの押上構造の側面図である。 実施例の横梁初回現場打設セグメントの押上構造の上面図である。 実施例の横梁二回湿式接合セグメントの上面図である。
In order to describe the embodiments of the present invention or the technical means in the prior art more clearly, the following will briefly describe the drawings that need to be used in the description of the embodiments or the prior art. The drawings are only some embodiments of the present invention, and those skilled in the art can obtain drawings of other embodiments based on these drawings without creative efforts.
It is a top view of the gate-type bridge pier split-type horizontal beam of an Example. 1 is a top view of an example cast-in-place crossbeam bracket; FIG. 1 is a side view of an example crossbeam first pour-in-place segment support structure; FIG. FIG. 4 is a side view of an example cross beam initial cast-in-place segment push-up structure; FIG. 4 is a top view of an example cross beam initial cast-in-place segment push-up structure; FIG. 4 is a top view of an example cross-beam double wet-bonded segment;

1 横梁初回現場打設セグメント
2 横梁初回現場打設セグメントと横梁二回湿式接合セグメントの境界断面
3 横梁二回湿式接合セグメント
4 現場打設横梁ブラケット
5 コルベル
6 摺動板
7 シュート
8 鉄筋円筒
9 コルゲートパイプ
10 砂箱
11 橋脚柱
12 シュートサポート
13 既設鉄道下り線
14 既設鉄道上り線
1 Cross-beam first cast-in-place segment 2 Boundary cross section between cross-beam first-time cast-in-place segment and cross-beam two-time wet-joint segment Pipe 10 Sand box 11 Bridge pier 12 Chute support 13 Existing railway outbound line 14 Existing railway inbound line

本考案を容易に理解するために、以下、関連図面を参照しながら本考案をより全面に説明する。図面では本考案の好ましい実施形態が示される。しかし、本考案は様々な多くの形態で実施され得、本明細書に記載される実施形態に限定されない。むしろ、これらの実施形態の目的本考案の開示内容をより徹底的かつ完全に理解することである。
本考案の説明において、「上」、「下」、「前」、「後」、「左」、「右」、「垂直」、「水平」、「頂」、「底」、「内」、「外」、「縦」、「横」などの用語で示される方位または位置関係は図面に基づく方位または位置関係であり、本考案の説明および説明の簡略化の目的のみで使用され、かかる装置またはデバイスは必ずしも特定の方位を有し、特定の方位で構成および操作されることを指示または暗示するものではないため、本考案の限定として理解されない。
In order to facilitate understanding of the present invention, the present invention will now be described more fully with reference to the associated drawings. The drawings show preferred embodiments of the invention. This invention may, however, be embodied in many different forms and is not limited to the embodiments set forth herein. Rather, the purpose of these embodiments is to provide a more thorough and complete understanding of the present disclosure.
In the description of the present invention, "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", Orientation or positional relationships indicated by terms such as "outside", "longitudinal", "horizontal", etc. are orientations or positional relationships based on the drawings and are used only for the purpose of describing and simplifying the description of the present invention, and such apparatus or should not be taken as a limitation of the invention, as it does not necessarily indicate or imply that the device has a particular orientation and is configured and operated in a particular orientation.

本考案の説明において、特に明確な規定および限定がない限り、「位置」、「接続」、「設置」の用語は広義に理解されるべきであり、例えば、固定的に接続、設置してもよく、着脱可能な接続、設置してもよく、または一体的に接続、設置してもよい。当業者にとって、具体的な状況に応じて本考案における上記用語の具体的な意味を理解することができる。 In the description of the present invention, the terms "position", "connection" and "installation" should be understood in a broad sense unless otherwise clearly defined and limited. may be detachably connected and installed, or integrally connected and installed. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation.

実施例1:
門型橋脚は一般に両側の垂直な橋脚柱11と上部横方向の水平な横梁を含み、図1に示すように、本実施例にかかる門型橋脚は既設鉄道線路を架設する必要がなく、その横梁が中間の横梁初回現場打設セグメント1と両側の横梁二回湿式接合セグメント3の3つの部分に分割される。横梁初回現場打設セグメント1は既設鉄道線路の左側に構築され、完成後、横方向に右へ2つの橋脚柱11間の設計位置に移動させ、その後橋脚柱11の上部と横梁初回現場打設セグメント1端部間に横梁二回湿式接合セグメント3を構築し、橋脚柱11、横梁二回湿式接合セグメント3および横梁初回現場打設セグメント1からなる門型橋脚構造を構築する。
Example 1:
A gantry pier generally includes vertical pier columns 11 on both sides and upper horizontal horizontal beams. As shown in FIG. The cross beam is divided into three parts: middle cross beam first cast-in-place segment 1 and both side cross beam double wet-joint segments 3 . Cross beam first-in-place casting segment 1 is constructed on the left side of the existing railroad track, and after completion, it is moved laterally to the right to the design position between the two pier columns 11, and then the upper part of the pier column 11 and the cross-beam first-in-place casting. A cross-beam double wet-joint segment 3 is constructed between the ends of the segments 1, and a portal structure consisting of a pier column 11, a cross-beam double-wet-joint segment 3 and a cross-beam initial cast-in-place segment 1 is constructed.

本実施例は上記門型橋脚の分割式横梁施工構造に関し、それは支持構造と押上構造を含む。 This embodiment relates to the construction structure of split cross beams of the above-mentioned gate-type piers, which includes a supporting structure and a lifting structure.

図2では、既設鉄道線路の既設鉄道下り線13と既設鉄道上り線14の方向を縦方向とし、前記支持構造は既設鉄道線路の横方向の左側であって、左側橋脚柱11の外側に位置する。図3では、前記支持構造は現場打設横梁ブラケット4と砂箱10を含む。前記現場打設横梁ブラケット4は下部立柱と上部鋼トラスを含む。前記砂箱10は前記立柱の上部と前記鋼トラスの底部間に設置される。前記砂箱10内に砂が充填され、前記砂箱10内に収容された砂の量を減少することで前記鋼トラスの高さを低減することができる。 In FIG. 2, the direction of the existing railroad line 13 and the existing railroad line 14 of the existing railroad track is the vertical direction, and the support structure is located on the left side of the existing railroad track in the lateral direction and outside the left pier column 11. do. In FIG. 3, the support structure includes cast-in-place crossbeam brackets 4 and sandboxes 10 . Said cast-in-place crossbeam bracket 4 comprises a lower standing column and an upper steel truss. The sand box 10 is installed between the top of the vertical column and the bottom of the steel truss. The sand box 10 is filled with sand, and by reducing the amount of sand contained in the sand box 10, the height of the steel truss can be reduced.

図3、図4および図5に示すように、前記押上構造はシュート7とシュートサポート12を含む。2つの前記シュート7設置は現場打設横梁ブラケット4の前後両側に横方向に設けられ、前記シュート7は前記現場打設横梁ブラケット4の左端から2つの橋脚柱11間に延伸し、前記シュートサポート12は前記シュート7の下方に位置して支持作用を果たす。 The uplift structure includes a chute 7 and a chute support 12, as shown in FIGS. Two said chute 7 installations are laterally provided on both front and rear sides of the cast-in-place cross beam bracket 4, said chute 7 extends from the left end of said cast-in-place cross beam bracket 4 between two piers 11, and said chute support. 12 is positioned below the chute 7 to provide support.

前記施工構造は横梁初回現場打設セグメント1をさらに含み、前記横梁初回現場打設セグメント1は前記現場打設横梁ブラケット4の鋼トラスの上部に位置し、前記現場打設横梁ブラケット4の鋼トラスの上部に配置される。前記横梁初回現場打設セグメント1の両端の端面に前記シュート7に垂直するI形鋼が予め埋め込まれ、前記I形鋼は前記横梁初回現場打設セグメント1の前後両側にコルベル5を形成し、前記シュート7が前記コルベル5の下方に配置され、前記コルベル5の底面が前記シュート7の頂面よりも高い。前記コルベル5の底面に摺動板6が設けられる。砂箱10内に収容された砂の量を減少することで鋼トラスの高さを低減するとき、横梁初回現場打設セグメント1が下方に移動して、コルベル5を落下させてシュート7に支持させ、横梁初回現場打設セグメント1は現場打設横梁ブラケット4による支持からシュート7による支持に転換される。図4に示すように、ジャッキなどで横梁初回現場打設セグメント1を押し上げてシュート7を横方向に移動させることができる。コルベル5と摺動板6の結合構造により横梁の押上には便利である。 Said construction structure further includes a cross beam first-in-place cast-in-place segment 1, said cross-beam first-in-place cast-in-place segment 1 is located on top of the steel truss of said cast-in-place cross-beam bracket 4, said steel truss of said cast-in-place cross beam bracket 4 placed on top of the An I-shaped steel vertical to the chute 7 is embedded in advance in the end faces of both ends of the horizontal beam initial cast-in-place segment 1, and the I-shaped steel forms corbels 5 on both front and rear sides of the horizontal beam initial cast-in-place segment 1, The chute 7 is arranged below the corbel 5 and the bottom surface of the corbel 5 is higher than the top surface of the chute 7 . A sliding plate 6 is provided on the bottom surface of the corbel 5 . When the height of the steel truss is reduced by reducing the amount of sand contained in the sand box 10, the transverse beam first cast-in-place segment 1 moves downward, causing the corbel 5 to fall and be supported on the chute 7. , the cast-in-place crossbeam segment 1 is converted from being supported by the cast-in-place crossbeam bracket 4 to being supported by the chute 7 . As shown in FIG. 4, the chute 7 can be moved laterally by pushing up the cross beam initial pour-in-place segment 1 with a jack or the like. The connecting structure of the corbel 5 and the sliding plate 6 is convenient for pushing up the cross beam.

図3および図5に示すように、前記横梁初回現場打設セグメント1の横方向両端の端面に露出した鉄筋円筒8が予め埋め込まれ、前記鉄筋円筒8は横梁初回現場打設セグメント1の端面に対して垂直であり横方向に設けられる。前記横梁初回現場打設セグメント1の底部にコルゲートパイプ9が予め埋め込まれ、前記コルゲートパイプ9は横梁初回現場打設セグメント1の端面に対して垂直であり横方向に設けられ、前記コルゲートパイプ9は横梁初回現場打設セグメント1を貫通して設けられ、両端が前記横梁初回現場打設セグメント1の横方向両端の端面から露出する。横梁初回現場打設セグメント1が設置位置まで移動すると、横梁初回現場打設セグメント1の両端に横梁二回湿式接合セグメント3を構築し、横梁二回湿式接合セグメント3が鉄筋円筒8とコルゲートパイプ9とともに一体に鋳造され得る。鉄筋円筒8は接続鉄筋を設置するために使用され、コルゲートパイプ9はプレストレスト鋼製束を貫通する。橋脚柱11、横梁二回湿式接合セグメント3、横梁初回現場打設セグメント1内の鉄筋が互いに接続され、鉄筋とプレストレスト鋼製束とともに一体に鋳造される。 As shown in FIGS. 3 and 5, exposed reinforcing bar cylinders 8 are embedded in advance in the end faces of the horizontal both ends of the horizontal beam initial casting-in-place segment 1, and the reinforcing bar cylinders 8 are embedded in the end faces of the horizontal beam initial casting-in-place segment 1. provided perpendicular to and transverse to. A corrugated pipe 9 is pre-embedded in the bottom of the cross beam initial cast-in-place segment 1, and the corrugated pipe 9 is perpendicular and transverse to the end face of the cross-beam first cast-in-place segment 1, and the corrugated pipe 9 is It is provided through the cross beam first-time casting-in-place segment 1, and both ends are exposed from the end faces of both lateral ends of said cross-beam first-time casting-in-place segment 1. When the cross beam initial cast-in-place segment 1 is moved to the installation position, the cross beam double wet-bonded segment 3 is constructed at both ends of the cross beam initial cast-in-place segment 1, and the cross beam double wet-bonded segment 3 is connected to the reinforcing bar cylinder 8 and the corrugated pipe 9. can be integrally cast with Rebar cylinders 8 are used to install connecting rebars and corrugated pipes 9 pass through the prestressed steel bundles. The rebars in the pier column 11, crossbeam double wet-joint segment 3, crossbeam first cast-in-place segment 1 are connected to each other and integrally cast with the rebar and prestressed steel bundle.

鉄筋円筒8とコルゲートパイプ9の設置により、横梁初回現場打設セグメント1と横梁二回湿式接合セグメント3の効果的な接続が実現され、横梁初回現場打設セグメント1が下方のシュート7に垂直方向の圧力を掛けなくなり、力体系が全体として門型構造に転換され得る。横梁初回現場打設セグメントと横梁二回湿式接合セグメントの境界断面2に、橋脚柱11、横梁二回湿式接合セグメント3、横梁初回現場打設セグメント1の鉄筋が互いに接続され、横梁二回湿式接合セグメント3と横梁初回現場打設セグメント1が予め埋め込まれたコルゲートパイプを介してプレストレスト鋼製束を貫通して一体に鋳造され、横梁がコンクリート構造からプレストレストコンクリート構造への転換、および横梁が単純支持構造から連続剛性フレーム体系への円滑な転換が達成される。 The installation of rebar cylinders 8 and corrugated pipes 9 provides an effective connection between the cross beam first-in-place pouring segment 1 and the cross-beam double wet-joint segment 3 so that the cross-beam first-in-place pouring segment 1 is perpendicular to the chute 7 below. pressure is no longer applied, and the force system can be converted into a portal structure as a whole. At the boundary section 2 between the cross beam first-time cast-in-place segment and the cross-beam two-time wet-joint segment, the reinforcing bars of the pier column 11, the cross-beam two-time wet-joint segment 3, and the cross-beam first-time wet-joint segment 1 are connected to each other, and the cross-beam two-time wet-joint Segment 3 and crossbeam first cast-in-place segment 1 are integrally cast through prestressed steel bundles via pre-embedded corrugated pipes, crossbeam conversion from concrete structure to prestressed concrete structure, and crossbeam simply supported A smooth transition from structure to continuous rigid frame system is achieved.

実施例2:
本実施例は上記施工構造の具体的な施工方法に関し、最終的に分割式横梁門型橋脚を構築でき、具体的には以下のとおりである。
ステップ1:既設鉄道線路の両側に橋脚柱11を構築する。
ステップ2:左側橋脚柱11の外側に現場打設横梁ブラケット4を構築し、現場打設横梁ブラケット4の立柱と鋼トラス間に砂箱10を設置し、現場打設横梁ブラケット4の前後両側に横方向のシュート7およびそのシュートサポート12を設置する。
ステップ3:現場打設横梁ブラケット4の鋼トラスに横梁初回現場打設セグメント1を構築し、コルベル5を予め埋め込み、コルベル5の表面に摺動板6を設置し、横梁初回現場打設セグメント1の両端端面に鉄筋円筒8を予め設置して接続鉄筋を設け、横梁初回現場打設セグメント1の底部にプレストレスト鋼製束を通すためのコルゲートパイプ9を予め埋め込む。
ステップ4:ジャッキで横梁初回現場打設セグメント1を設計位置に横方向に押す。
ステップ5:橋脚柱11の上部に横梁二回湿式接合セグメント3の鉄筋、立模および鋼製束を結束し、横梁初回現場打設セグメント1の鉄筋に接続させ、鋼製束を引っ張り、コンクリートを流し込んで横梁二回湿式接合セグメント3を構築し、横梁初回現場打設セグメント1の鉄筋円筒8とコルゲートパイプ9が横梁二回湿式接合セグメント3を介して橋脚柱11の予備鉄筋と一体に連結され、横梁の力体系の転換を完了させる。
ステップ6:支持構造および押上構造を取り外す。
Example 2:
This embodiment relates to the specific construction method of the above-mentioned construction structure, which can finally construct a split cross-beam gate type bridge pier, specifically as follows.
Step 1: Build piers 11 on both sides of the existing railroad track.
Step 2: Construct a cast-in-place cross beam bracket 4 on the outside of the left pier column 11 , install a sand box 10 between the vertical column of the cast-in-place cross beam bracket 4 and the steel truss, and place the cast-in-place cross beam bracket 4 on both front and rear sides A lateral chute 7 and its chute support 12 are installed.
Step 3: Construct a cross beam initial cast-in-place segment 1 on the steel truss of the cast-in-place cross beam bracket 4, pre-embed the corbel 5, install the sliding plate 6 on the surface of the corbel 5, and cross-beam first cast-in-place segment 1 A reinforcing bar cylinder 8 is installed in advance on both end faces of the cross beam to provide a connection reinforcing bar, and a corrugated pipe 9 for passing a prestressed steel bundle is embedded in the bottom of the horizontal beam initial field casting segment 1 in advance.
Step 4: Jack laterally push crossbeam first cast-in-place segment 1 into design position.
Step 5: Bind the rebar, vertical model and steel bundle of cross beam double wet joint segment 3 to the upper part of pier column 11, connect to the rebar of cross beam initial cast-in-place segment 1, pull the steel bundle, and pour concrete. The cross beam two-time wet-joint segment 3 is constructed by pouring, and the rebar cylinder 8 and the corrugated pipe 9 of the cross-beam initial on-site casting segment 1 are connected integrally with the spare reinforcing bar of the pier column 11 via the cross-beam two-time wet-joint segment 3. , to complete the transformation of the transverse beam force system.
Step 6: Remove the support structure and push-up structure.

もちろん、本考案にかかる施工構造は鉄道交通の分野に加えて、高速道路、市営交通の分野にも適用可能であり、施工過程中既設ラインを架設する施工時間とライン閉鎖の申請回数を大幅に削減でき、橋梁下の既設ラインの運転への干渉が少なく、安全上のリスクも大幅に低減される。 Of course, the construction structure according to the present invention can be applied not only to the field of railway traffic, but also to the field of expressways and municipal transportation, and during the construction process, the construction time for erecting existing lines and the number of applications for line closure can be greatly reduced. It can reduce the number of lines, interfere less with the operation of existing lines under the bridge, and greatly reduce safety risks.

以上、具体例を用いて本考案を説明したが、これは本考案を容易に理解するためのものに過ぎ、本考案を限定するものではない。当業者であれば、本考案の思想に基づいて、いくつかの簡単な推論、変形または置換を行うことができる。 Although the present invention has been described above using specific examples, this is merely for the purpose of facilitating understanding of the present invention, and does not limit the present invention. Those skilled in the art can make some simple inferences, modifications or replacements based on the idea of the present invention.

Claims (7)

支持構造および押上構造を含み、
前記支持構造は現場打設横梁ブラケット(4)と砂箱(10)を含み、前記現場打設横梁ブラケット(4)は既設鉄道線路の左側に設けられ、下部立柱と上部鋼トラスを含み、前記砂箱(10)は前記立柱の上部と前記鋼トラスの底部間に設けられ、
前記押上構造はシュート(7)とシュートサポート(12)を含み、2つの前記シュート(7)は現場打設横梁ブラケット(4)の前後両側に横方向に設けられ、前記シュート(7)は前記現場打設横梁ブラケット(4)の左端から2つの橋脚柱(11)間に延伸し、前記シュートサポート(12)は前記シュート(7)の下方に位置する、ことを特徴とする既設鉄道線路の門型橋脚に架設された分割式横梁施工構造。
including support and lift structures,
Said support structure comprises a cast-in-place crossbeam bracket (4) and a sandbox (10), said cast-in-place crossbeam bracket (4) is installed on the left side of the existing railroad track and comprises a lower standing column and an upper steel truss, said A sand box (10) is provided between the top of the standing pillar and the bottom of the steel truss,
Said uplift structure comprises a chute (7) and a chute support (12), two said chutes (7) are laterally provided on both front and rear sides of a cast-in-place crossbeam bracket (4), said chute (7) being said Extending from the left end of a cast-in-place cross beam bracket (4) between two pier posts (11), said chute support (12) is located below said chute (7). A split-type horizontal beam construction structure erected on a gate-type pier.
前記施工構造は、横梁初回現場打設セグメント(1)をさらに含み、前記横梁初回現場打設セグメント(1)は前記現場打設横梁ブラケット(4)の鋼トラスの上部に位置し、
前記横梁初回現場打設セグメント(1)の両端に前記シュート(7)に垂直なI形鋼が予め埋め込まれ、前記I形鋼は前記横梁初回現場打設セグメント(1)の前後両側にコルベル(5)を形成し、前記シュート(7)が前記コルベル(5)の下方に位置し、前記コルベル(5)の底面が前記シュート(7)の頂面よりも高い、ことを特徴とする請求項1に記載の既設鉄道線路の門型橋脚に架設された分割式横梁施工構造。
said constructed structure further comprising a cross beam first cast-in-place segment (1), said cross beam first-in-place cast-in-place segment (1) located on top of the steel truss of said cast-in-place cross beam bracket (4);
An I-beam perpendicular to the chute (7) is pre-embedded at both ends of the cross beam initial cast-in-place segment (1), and the I-beam is corbel ( 5), characterized in that the chute (7) is located below the corbel (5) and the bottom surface of the corbel (5) is higher than the top surface of the chute (7). 2. A split-type horizontal beam construction structure erected on a gate-type bridge pier of an existing railway line according to 1.
前記コルベル(5)の底面に摺動板(6)が設けられる、ことを特徴とする請求項2に記載の既設鉄道線路の門型橋脚に架設された分割式横梁施工構造。 3. The split-type cross-beam construction structure erected on the gate-type bridge pier of the existing railway track according to claim 2, characterized in that a sliding plate (6) is provided on the bottom surface of the corbel (5). 前記横梁初回現場打設セグメント(1)の横方向両端の端面に露出した鉄筋円筒(8)が予め埋め込まれ、前記鉄筋円筒(8)は横梁初回現場打設セグメント(1)の端面に対して垂直であり横方向に設けられる、ことを特徴とする請求項3に記載の既設鉄道線路の門型橋脚に架設された分割式横梁施工構造。 Exposed reinforcing bar cylinders (8) are preliminarily embedded in the end faces of both lateral ends of the horizontal beam initial casting-in-place segment (1), and the reinforcing-bar cylinders (8) are placed against the end faces of the horizontal beam initial casting-in-place segment (1). 4. The split-type cross-beam construction structure erected on the gate-type bridge pier of the existing railroad track according to claim 3, characterized in that it is provided vertically and horizontally. 前記横梁初回現場打設セグメント(1)の底部にコルゲートパイプ(9)が予め埋め込まれ、前記コルゲートパイプ(9)は横梁初回現場打設セグメント(1)の端面に対して垂直であり横方向に設けられ、
前記コルゲートパイプ(9)は横梁初回現場打設セグメント(1)を貫通して設けられ、両端が前記横梁初回現場打設セグメント(1)の横方向両端の端面から露出する、ことを特徴とする請求項4に記載の既設鉄道線路の門型橋脚に架設された分割式横梁施工構造。
A corrugated pipe (9) is pre-embedded in the bottom of said transverse beam initial pour-in-place segment (1), said corrugated pipe (9) being perpendicular to the end face of the transverse beam initial-in-place pouring segment (1) and laterally provided,
The corrugated pipe (9) is provided through the cross beam initial cast-in-place segment (1), and both ends are exposed from the end faces of both lateral ends of the cross-beam first cast-in-place segment (1). 5. A split-type horizontal beam construction structure erected on a gate-type bridge pier of an existing railroad track according to claim 4.
前記砂箱(10)内に砂が充填され、前記砂箱(10)内に収容される砂の量を減少することにより前記鋼トラスの高さを低減して、前記コルベル(5)を落下させて前記シュート(7)に支持させることができる、ことを特徴とする請求項5に記載の既設鉄道線路の門型橋脚に架設された分割式横梁施工構造。 Sand is filled in the sand box (10) to reduce the height of the steel truss by reducing the amount of sand contained in the sand box (10) to drop the corbel (5). The split-type cross-beam construction structure erected on the gate-type bridge pier of the existing railroad track according to claim 5, characterized in that the cross-beam construction structure is supported by the chute (7). 前記施工構造は横梁二回湿式接合セグメント(3)をさらに含み、前記横梁二回湿式接合セグメント(3)は前記横梁初回現場打設セグメント(1)の両側に位置し、横梁初回現場打設セグメント(1)の端面に接続され、前記鉄筋円筒(8)と前記コルゲートパイプ(9)ともに一体に鋳造される、ことを特徴とする請求項6に記載の既設鉄道線路の門型橋脚に架設された分割式横梁施工構造。 Said construction structure further comprises cross beam double wet-bonded segments (3), said cross beam double wet-bonded segments (3) are located on both sides of said cross beam first cast-in-place segment (1), said cross beam first-in-place cast-in-place segment (1), and the reinforcing steel cylinder (8) and the corrugated pipe (9) are integrally cast together. Split-type horizontal beam construction structure.
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CN117005305B (en) * 2023-07-05 2024-06-18 中国铁建港航局集团有限公司 Construction method for constructing upper capping beam in prestressed concrete common pier section
CN117051700B (en) * 2023-07-05 2024-06-11 中国铁建港航局集团有限公司 Construction method of prestress system of pier stud reserved post-pouring capping beam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110117932A (en) * 2019-05-15 2019-08-13 长江勘测规划设计研究有限责任公司 A kind of bridge builds the reserved overhead station structure of separation and construction method

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