Large-span steel-concrete composite bridge large-section steel truss girder erecting system and construction method

A technology of steel truss girders and composite bridges, which is applied in the erection system and construction field of large-segment steel truss girders of long-span steel-concrete composite bridges. , Ensure the effect of installation linearity and simple structure

Inactive Publication Date: 2020-05-22
湖北省路桥集团有限公司
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Problems solved by technology

Traditional steel truss girder construction usually uses the construction method of loading and pressing down to control the alignment, but the alignment control operation is cumbersome and the accuracy is difficult to control

Method used

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  • Large-span steel-concrete composite bridge large-section steel truss girder erecting system and construction method
  • Large-span steel-concrete composite bridge large-section steel truss girder erecting system and construction method
  • Large-span steel-concrete composite bridge large-section steel truss girder erecting system and construction method

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0045] Such as figure 1 and image 3 As shown, the auxiliary hole traction system 4 is set on the work platform 13 as the fixed control frame of the main cable 5, and its auxiliary hole is used as a traction frame for the translation of the steel truss 18, which is used to release the traction force when the steel truss 18 is connected, and the auxiliary steel trusses 18 are connected to each other. close together; and the pulley block 8 is set on the side near ...

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Abstract

The invention relates to a large-span steel-concrete composite bridge large-section steel truss girder erecting system which comprises a near-tower end girder erecting system and a steel truss girderassembling system. The near-tower end beam erecting system comprises a main tower gantry, an auxiliary hole traction system, a pulley block and a temporary sling. The steel truss girder assembling system is mainly composed of a cable crane walking mechanism, an auxiliary hole traction system and a connecting panel. The main tower gantry comprises stand columns and a gantry main truss. The auxiliary hole traction system is installed on an operation platform and connects and fixes the two ends of a main cable. The cable crane walking mechanism is installed on the main cable, and the top of the cable crane walking mechanism is suspended to the gantry main truss at the top of the main tower gantry through a steel wire rope. The system has the beneficial effects that an easy-to-disassemble anti-collision frame is arranged on the outer side of the auxiliary hole traction system, the traction system can be protected against collision during operation, and the anti-collision frame is simple instructure, low in manufacturing cost and convenient to assemble and disassemble.

Description

technical field [0001] The invention relates to the field of bridges, in particular to a large-segment steel truss erection system and construction method for a long-span steel-concrete composite bridge. Background technique [0002] In the construction of suspension bridges, the construction of steel trusses requires a lot of manpower and material resources. In order to ensure the erection efficiency of steel trusses, it is usually necessary to consider the lifting and transportation of steel trusses; Under the premise of moving efficiency of truss girders and controlling assembly accuracy, it is usually necessary to consider the alignment of steel truss girders after closing. The traditional steel truss girder construction usually uses the construction method of loading and pressing down to control the alignment, but the alignment control operation is cumbersome and the accuracy is difficult to control. [0003] In view of the above-mentioned common problems in the erecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D21/06E01D6/00E01D101/30
CPCE01D6/00E01D21/00E01D21/06E01D2101/30
Inventor 朱红明刘秉祥张金诚张帆朱志刚
Owner 湖北省路桥集团有限公司
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