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Construction method for bridge steel box basket arch

A construction method and bridge technology, applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as structure line shape, weld quality difficult to control, construction safety difficult to ensure, etc., to improve quality control ability, significantly Economic benefits and the effect of reducing construction costs

Active Publication Date: 2009-04-15
THE 5TH ENG MBEC +1
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The installation method of the conventional steel box basket arch generally adopts the construction scheme of cable crane and long-span gantry crane cable-stayed buckle cable. Welding, so that the structural line shape and weld quality are difficult to be controlled, and the construction safety is also difficult to be guaranteed.

Method used

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  • Construction method for bridge steel box basket arch
  • Construction method for bridge steel box basket arch
  • Construction method for bridge steel box basket arch

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Embodiment Construction

[0020] The present invention is described in further detail below in conjunction with embodiment.

[0021] A construction method for the steel box basket arch of a bridge is as follows:

[0022] A. First determine the structural type of the bridge, the rise-span ratio, the inclination angle of the arch rib, the arch axis type, and the section form of the arch rib. The structural type of the bridge is side arch 1 plus main arch 6 plus side arch 1, main arch 6, The rise-span ratio of arch 1 is 1 / 4, the main arch 6 and side arch 1 are inwardly inclined with an angle of 10.6°, the arch axis type is a quadratic parabola, the arch rib 10 adopts a rectangular steel box stiffened beam section, side arch 1, main arch 1 The arch 6 is connected at the arch foot 7 through the abutment 2, and is consolidated with the main pier 8. The steel box girder 14 is composed of a mid-span steel box girder 5 and a side-span steel box girder 9. The standard section of each steel box girder 14 15 mete...

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Abstract

The steel box and basket arch bridge constructing process with 500-ton crane boat and full framing includes the following steps: determining the structural shape, rise-to-span ratio, arch rib toe-in angle and arch rib section form; installing the steel box girder support and midspan steel box girder; hoisting side arch and sidespan steel box girder and finally hoisting arch center. During the process, a total station meter and water level gages are adopted for overall process measurement, and jacks in longitudinal, transverse and vertical directions are utilized to locate the arch ribs and the steel box girder precisely, so as to ensure correct structural form and construction safety. At the same time, ANSYS program for calculating the installation profile and sensors for structure and stress control are also utilized. The constructing process is simple and easy to control, and the steel box and basket arch bridge has high typhoon resistance and high efficiency.

Description

technical field [0001] The invention relates to a construction method of a bridge, in particular to a construction method of a steel box basket arch of a bridge using a 500-ton gondola and full supports. Background technique [0002] With the development of our country's economy, more and more long-span bridges need to be built, and the structural forms of bridges are becoming more and more novel. The installation method of the conventional steel box basket arch generally adopts the construction plan of the cable crane and the long-span gantry crane cable-stayed buckle. In this way, it is difficult to control the structural alignment and weld quality, and it is also difficult to guarantee construction safety. Contents of the invention [0003] The object of the present invention is to provide a bridge steel box basket arch construction method that can control the structural alignment and weld quality of the bridge so as to improve quality control ability, ensure construct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
Inventor 周外男高兴泽谢季军李述宝彭建萍张大成赵则锋聂锦雄连居宋伟俊
Owner THE 5TH ENG MBEC
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