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Construction method of steel truss girder bridge with horizontal rotation

A construction method and steel truss technology, applied in truss bridges, erection/assembly bridges, bridges, etc., can solve the problem of large transverse spans of highway bridges, difficult handling of orthotropic plate steel deck pavement, and limited promotion of bridge types, etc. question

Active Publication Date: 2016-08-24
NANTONG ROAD & BRIDGE ENG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, among road bridges, steel truss bridges were not used much in the past. The main reason is that road bridges have large transverse spans, and the orthotropic plate steel deck pavement is difficult to deal with. damage, which greatly limits the promotion of this type of bridge

Method used

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  • Construction method of steel truss girder bridge with horizontal rotation
  • Construction method of steel truss girder bridge with horizontal rotation
  • Construction method of steel truss girder bridge with horizontal rotation

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Experimental program
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Embodiment Construction

[0092] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0093] 1. Process principle

[0094]The fixed lower turntable support system consists of the main pier pile foundation, the lower cap (the main pier cap is divided into upper and lower parts), the slideway pile foundation and the slideway cap, the slideway and the lower spherical hinge of the rotating spherical hinge. The upper cap of the pier, the main pier, the cover beam, the permanent support, the steel beam (upper structure), the upper spherical hinge of the rotating spherical hinge and the legs of the upper cap slideway constitute a stable structure that can rotate around the lower spherical hinge. The upper turntable system that slides on the slide is temporarily locked and consolidated by the pier beam, so that when the upper cap, the main pier, and the cover beam rotate, it can drive the upper structure to rotate synchronously without relative ...

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Abstract

The invention discloses a horizontal rotating construction method for a steel truss beam bridge. The horizontal rotating construction method comprises the following steps: constructing a reinforced concrete pile foundation, a cushion cap, a slideway, a main pier and a cap beam in a rotating system by using a conventional construction technology, and mounting a rotating spherical hinge as a core part for rotating; mounting an upper rotating plate on the slideway for construction; constructing the main pier and the cap beam; mounting a permanent support saddle of the main pier; preparing safety measures before rotating; determining a weight scheme before rotating; preparing a jack; rechecking before rotating; performing rotating construction operation. Compared with other processes, the horizontal rotating construction method for the steel truss beam bridge, provided by the invention, has the advantages of high construction speed and low construction cost. The construction of a lower structure can be synchronously finished in the manufacturing process of a steel beam in a factory; the hoisting operation of symmetrical cantilevers can be performed when a spliced site is hardened to reach the traveling strength of cranes like crawler crane; main expenses are rental expenses of the cranes, so the cost is reduced.

Description

technical field [0001] The invention relates to a bridge construction technology, in particular to a horizontal swivel construction method of a steel truss girder bridge. Background technique [0002] Steel truss bridge is one of the most competitive bridges among various types of bridges. It has many advantages such as large spanning capacity, fast construction speed, and convenient industrial manufacturing. Steel truss bridges are more and more favored by bridge designers. Steel truss bridges are widely used in railway engineering, and the technology has matured. However, among road bridges, steel truss bridges were not used much in the past. The main reason is that road bridges have large transverse spans, and the orthotropic plate steel deck pavement is difficult to deal with. Damage greatly limits the promotion of this type of bridge. With the rapid development of steel bridge deck pavement technology in recent years, this technical bottleneck has been basically solv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/08
CPCE01D6/00E01D21/08
Inventor 高秀美成军邢忠锋陈红群顾华季海萍黄坤坤
Owner NANTONG ROAD & BRIDGE ENG CO LTD
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