Reinforced concrete arch bridge construction method

A technology of reinforced concrete and construction method, applied in arch bridges, bridges, bridge forms, etc., can solve the problems of soft soil and weak support structure, and achieve the effects of saving materials, convenient disassembly, and preventing deformation.

Active Publication Date: 2012-06-13
浙江大东吴集团建设有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the construction of a reinforced concrete arch bridge, the pouring of the reinforced arch concrete circle requires erection of supports, such as figure 1 As shown, the construction bracket of the reinforced arch concrete circle in the prior art is formed by erecti...

Method used

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  • Reinforced concrete arch bridge construction method
  • Reinforced concrete arch bridge construction method
  • Reinforced concrete arch bridge construction method

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Embodiment Construction

[0034] combine figure 2 and image 3 The embodiment of the present invention is described in detail,

[0035] Such as figure 2 As shown, the arch ring support used in the construction process of the reinforced concrete arch bridge includes the arch truss 4, the bottom of both sides of the arch truss is supported on the consolidation support 2, and the construction formwork 7 is laid on the upper plane of the arch truss for the reinforced arch Concrete ring 1 pouring. There are also longitudinal steel bars 6 and building steel pipes 5 between the upper plane of the arched truss and the building formwork, wherein the building steel tubes are arranged horizontally at the nodes of the upper plane of the arched truss, and the vertical steel bars and the building steel tubes are vertically crossed and tiled in one layer as Building formwork support. The arched truss is HRB400 steel bar truss. The longitudinal reinforcement is threaded reinforcement. The two consolidation sup...

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Abstract

The invention discloses a reinforced concrete arch bridge construction method, which comprises the following steps of: 1, constructing a pile foundation, a pile cap, a bridge abutment body side wall and a bridge pier body; 2, erecting arch ring supports from the fourth hole to the eighth hole and from the thirteenth hole to the seventeenth hole on two sides of an arch bridge, arranging a locking system, and finally pouring concrete to arch rings of the eight holes; 3, detaching the arch ring supports in the step 2, erecting arch ring supports from the zero hole to the fourth hole and from theseventeenth hole to the twenty-first hole on the bridge abutment side, arranging a locking system and finally pouring concrete to arch rings of the eight holes; and 4, detaching the arch ring supports erected in the step 3, erecting arch ring supports from the eighth hole to the thirteenth hole in the span, arranging a locking system, pouring concrete to arch rings of the five holes, and folding the whole bridge. Main bodies of the arch ring supports have arch truss structures, a characteristic that steel bars are tensioned is utilized, the structures are firm, the middles of the structures are not required to be supported, materials are saved, the arch ring supports are convenient to detach, and constriction time is saved.

Description

technical field [0001] The present invention relates to bridge construction methods. Background technique [0002] During the construction of a reinforced concrete arch bridge, the pouring of the reinforced arch concrete circle requires erection of supports, such as figure 1 As shown, the construction bracket of the reinforced arch concrete ring in the prior art is formed by erecting the steel pipe 3 and then laying the building formwork 7. The two sides of the bracket can be supported on the abutment abutment 2 of the reinforced arch concrete ring. Part of the soil between the consolidation supports of the ring is soft, resulting in weak support structures. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a construction method for a reinforced concrete arch bridge. The arch ring support structure is simple and firm, saves materials, and at the same time, the construction method is scientific and the construction...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D4/00
Inventor 孙和生
Owner 浙江大东吴集团建设有限公司
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