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Construction method for steel-concrete joint section of bridge

A technology of steel-concrete combination and construction method, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as difficult adjustment of steel towers, and achieve the effect of solving rough connections, small internal space occupation, and overcoming difficult adjustments

Inactive Publication Date: 2016-07-06
SHANGHAI ROAD & BRIDGE (GRP) CO LTD +1
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a construction method for the steel-concrete joint section of the bridge in order to overcome the defect that the steel tower is difficult to adjust during installation in the prior art

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  • Construction method for steel-concrete joint section of bridge
  • Construction method for steel-concrete joint section of bridge
  • Construction method for steel-concrete joint section of bridge

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Embodiment Construction

[0022] A preferred embodiment will be given below, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

[0023] A construction method for a steel-concrete joint section of a bridge, comprising the following steps:

[0024] Step 1, such as figure 1 As shown, the lower part of the inner support frame 10 is embedded in the top of the concrete section 20 of the bridge tower. When binding the steel bars (not shown in the figure) of the concrete section, the lower part of the inner support frame is buried in the concrete section; and then the concrete is poured on the top of the concrete section. In this way, the characteristics of the concrete structure can be fully utilized to transfer loads; materials are saved, and the economy is outstanding; the implementation is simple and convenient; the impact on the appearance of the structure is small, and the construction quality can be better guaranteed. The inner suppo...

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Abstract

The invention discloses a construction method for a steel-concrete joint section of a bridge. The construction method comprises the following steps: embedding the lower part of an inner support frame at the top end of a concrete section of a bridge tower; fixing a plurality of limiting blocks outside the inner support frame; arranging a plurality of three-way lifting jacks at the top end of the concrete section; mounting a steel tower on the inner support frame after being positioned by the limiting blocks, and allowing the top of each three-way lifting jack to pop up the bottom of the steel tower; adjusting the three-way lifting jacks, and adjusting the position of the steel tower; welding a plurality of inner limiting supporting parts between the steel tower and the inner support frame; removing the limiting blocks and the three-way lifting jacks; fixing a post-cast section wooden template between the top end of the concrete section and the steel tower. The method disclosed by the invention can realize adjustment of six degrees of freedom of the steel tower and is convenient and precise to adjust; according to the method, inner space occupancy of the steel tower is relatively small, the steel tower can be stabilized in the concrete pouring period, and linear smooth transition between the steel tower and a concrete tower is realized.

Description

technical field [0001] The invention relates to a construction method of a steel-concrete joint section of a bridge. Background technique [0002] The main bridge tower column of the bridge adopts a steel-concrete composite tower, that is, the steel tower is fixed on the concrete base, and the steel tower part is manufactured in sections by the factory and assembled on site. In the actual construction process, the concrete is usually poured directly to the bottom of the steel tower section, and the steel structure section is directly installed on the concrete foundation for adjustment. Due to the different construction precision requirements of the steel structure and the concrete structure, the construction deviation causes the dislocation of the joint, and only external adjustment can be performed, which has the problem of difficult adjustment. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a construction met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 张跃杨培俊严凯倪文全蒋海里盛志华程文庆王孟宝刘伟俊李琦成先伟李铭劼彭剑峰
Owner SHANGHAI ROAD & BRIDGE (GRP) CO LTD
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