A rapid construction method of steel box girder with low slippage
A construction method and technology of steel box girders, applied to bridges, bridge construction, erection/assembly of bridges, etc., to achieve good social and economic benefits, and high construction safety factors
Active Publication Date: 2017-08-11
中铁建大桥工程局集团靖江重工有限公司
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Problems solved by technology
[0003] The purpose of the patent of the present invention is to provide a low-level sliding and fast construction method of steel box girder, which can solve the problem of installing the main girder of steel box girder of long-span self-anchored suspension bridge, and has fast construction speed, simple structure and clear force
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[0026] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0027] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...
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The invention provides a low-position sliding fast construction method for a steel box girder. The method comprises the following steps that 1, a main tower lower cross beam is constructed; 2, a sliding support is mounted within the main tower side span range, and arranged along the center line of a main bridge, and a side span steel box girder section and a middle span steel box girder section are stored through the sliding support; 3, a main tower middle cross beam is constructed; 4, a middle cross beam bracket is mounted on the main tower middle cross beam, at least two steel box girder sections are hoisted to the middle cross beam bracket, and after the positions and linearity of the steel box girder sections are adjusted, the steel box girder sections are spliced to form a supporting body. According to the low-position sliding fast construction method for the steel box girder, a low-position sliding platform is erected on the side span side of a bridge span and is constructed synchronous to a main tower, a support is low, and only 1,300 t of steel is needed in the project amount of the support. According to the construction method, great significance is achieved on construction of the steel box girder of a large-span self-anchored type suspension bridge spanning rivers, lakes and seas, the construction safety coefficient is high, and good social benefits and economic benefits are achieved.
Description
technical field [0001] The patent of the present invention relates to bridge construction equipment, in particular to a low-level sliding rapid construction method for steel box girders. Background technique [0002] The extensive use of steel has made steel box girders widely used in various bridges. Whether it is an urban bridge or a railway bridge, many bridges use steel box girders as the main girder body. This is not only a manifestation of the mature application of steel box girders, but also brings the possibility of diversified construction of steel box girders. The long-span self-anchored suspension bridge to be mentioned in the present invention is generally built on deep water, and the main girder section often uses a steel box girder section. However, due to the limitation of hydrogeological conditions, the construction will also have corresponding limitations. The installation scheme of the main girder of a long-span self-anchored steel box girder suspension b...
Claims
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IPC IPC(8): E01D21/06
CPCE01D21/06
Inventor 宋伟俊陈宁贤龚国锋曲江峰刘长海高学文刘志常洁章耀林邢如祥岳超杰汤和达裴野王森
Owner 中铁建大桥工程局集团靖江重工有限公司