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Construction method for bridge with few brackets and bridge

A construction method and technology for bridges, applied in the directions of bridges, bridge materials, bridge construction, etc., can solve the problems of long support construction time, high support erection difficulty and high support cost, and achieve the effect of improving construction efficiency, convenient construction and reducing erection.

Active Publication Date: 2016-11-16
江苏燕宁工程科技集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the existing construction method is that it is difficult to erect the support when the box girder is cast in place on the high pier, the cost of the support is high and the construction time of the support is long

Method used

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  • Construction method for bridge with few brackets and bridge
  • Construction method for bridge with few brackets and bridge
  • Construction method for bridge with few brackets and bridge

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no. 1 example

[0038] Please refer to figure 1 , image 3 and Figure 4 , the present embodiment provides a construction method for bridges with few supports, and the construction method for bridges with few supports of the present invention includes a double hoop construction step 100 and a pre-embedded corbel construction step.

[0039]The hoop method is to use two sections of semicircular steel strips to be clamped on the lower pier column during the construction of the box girder. The upper load passed down by the supporting beam - the self-weight of the box girder, the self-weight of the formwork, the construction load, etc. The double hoop bracket 400 adopted in the double hoop construction step 100 of the present invention includes a double hoop 500, a spacer 530, a pole beam 540, an unloading device 550, a transverse load beam 560, a longitudinal load beam 570, a distribution beam 580 and Floor trusses 590 . Double hoop construction step 100 comprises the following steps:

[004...

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Abstract

The invention relates to a construction method for a bridge with few brackets. The construction method comprises a dual-hoop construction step. The dual-hoop construction step comprises the following steps of mounting dual hoops on the same pier column, wherein the dual hoops comprise a first hoop and a second hoop of which the structures are the same, the first hoop is provided with a first supporting piece, the second hoop is provided with a second supporting piece, and the first supporting piece and the second supporting piece are staggered in the radial direction of each of the pier columns; and mounting first cushion blocks on the dual hoops, wherein the top surfaces of the first cushion blocks and the top surfaces of the second supporting pieces are on the same level surface. The invention also relates to a bridge. The bridge comprises bridge piers and a cast-in-situ box beam constructed by the dual hoops which are erected by the method disclosed by the invention. An upper part structure is directly mounted to the first cushion blocks and the second supporting piece, so that the erection of the bracket is reduced, and the construction is convenient and fast; no-damage construction is performed on the pier columns, so that the construction efficiency is improved; and each of the hoops on the high pier columns adopts a corresponding dual-semicircle shaping steel die, so that the situation that the contact surface of the hoops and the contact surface of the pier columns are matched is guaranteed, and the hoops can be recycled.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a bridge construction method with few supports and a bridge. Background technique [0002] The foundation of the bridge bears the full weight of the piers, span structure, and variable loads on the bridge. Bridge foundations are often built in the flowing water of rivers and are subject to the erosion of water flow. Therefore, the bridge foundation is generally larger than the house foundation, and there are many problems to be considered, and the construction conditions are also difficult. [0003] The on-site construction method of the box girder is mainly the selection of the formwork support. In order to achieve the goals of speed, safety and economy, it is necessary to carefully compare the support schemes before construction. Commonly used construction methods for cast-in-place box girders include: full-wall support method, hoop-shaped steel Bailey combination support m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D2/04E01D101/26E01D101/30
CPCE01D2/04E01D21/00E01D2101/26E01D2101/30
Inventor 熊化波顾吉祥谢睿杰袁海天雷志刚周加思王宏斌
Owner 江苏燕宁工程科技集团有限公司
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