Overall installation method of double-body separable combined beam

An installation method and technology of combining beams, which are applied in the directions of bridges, bridge construction, erection/assembly of bridges, etc., to achieve the effect of reducing relative deformation

Active Publication Date: 2013-06-05
CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] Aiming at the defects existing in the prior art, the object of the present invention is to provide a method for the entire installation of a double-width separated composite beam, which reduces the relative deformat...

Method used

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  • Overall installation method of double-body separable combined beam
  • Overall installation method of double-body separable combined beam
  • Overall installation method of double-body separable combined beam

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] In the method for installing the entire width of a double-width separated composite beam according to the present invention, a temporary connection system 200 is set between the left and right separated steel box girders at the rear end of the composite beam 100 section to be installed, and a temporary connection system 200 is provided between the left and right separated steel box girders. A matching connector 300 is provided at the web, so that the cross-sections of the beam section to be erected and the beam section already erected can be matched and docked. The temporary connecting system 200 is arranged horizontally, and the matching connector 300 is arranged longitudinally.

[0032] On the basis of the above technical solution, the temporary connection system 200 is set on the section of the common diaphragm (diaphragm) at the rear beam of the le...

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Abstract

The invention relates to an overall installation method of a double-body separable combined beam, a temporary connection system (200) is arranged between a left separable steel box beam and a right separable steel box beam at the rear end of a section of the combined beam (100) to be installed, and matched connectors (300) are arranged in the positions of webs of the left separable steel box beam and the right separable steel box beam, so that the cross sections of a beam section to be erected and an erected beam section are connected in a matched and abutting mode. In the installation process of the section of the combined beam (100) to be installed, a beam erection lifter (400) lifts the combined beam (100) to be installed to slowly approach the front end of an installed combined beam (100), alignment of a section to be erected and an erected section is carried out through the matched connectors (300) and bolts, and accurate positioning of end surfaces of the beam is achieved. The overall installation method of the double-body separable combined beam reduces the relative deformation of flanges at two sides of the double-body separable combined beam under a lifting state, and resolves the problem of the aligning of the cross sections of the beam section to be erected and the erected beam section.

Description

technical field [0001] The invention relates to the installation of double-width separated composite girders in bridge engineering, in particular to a whole-width installation method of double-width separated composite beams. Background technique [0002] The double-width separated composite girder consists of a left separated steel box girder and a right separated steel box girder. There is no precedent for the installation of the entire width at home and abroad. Since the girder erecting crane is located near the middle of the erected girder, conventional When the cantilever method is installed, the flanges on both sides of the left and right separated steel box girders will be relatively deformed, and the transverse deformation directions between the two ends of the double-width separated composite beam that has been erected and the beam end of the double-width separated composite beam to be erected are inconsistent, resulting in two-way deformation Uncoordinated, the con...

Claims

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Application Information

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IPC IPC(8): E01D21/00
Inventor 李军堂谭国顺陶建山马涛涂满明刘灿万成刚张瑞霞姚发海张克许佳平姚森方小林黄剑锋
Owner CHINA RAILWAY MAJOR BRIDGE ENG GRP CO LTD
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