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Construction method of single main cable inclined-suspender earth anchored suspension bridge

A construction method and technology of inclined suspension rods are applied in the directions of suspension bridges, bridges, bridge forms, etc., to achieve the effect of reasonable construction method, guarantee of project progress, and safe and reliable construction process.

Inactive Publication Date: 2010-12-15
CHINA TIESIJU CIVIL ENG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For this brand-new bridge body form, there is no public report on a complete set of suitable construction methods.

Method used

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  • Construction method of single main cable inclined-suspender earth anchored suspension bridge
  • Construction method of single main cable inclined-suspender earth anchored suspension bridge
  • Construction method of single main cable inclined-suspender earth anchored suspension bridge

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Embodiment

[0053] Liuzhou Shuangyong Bridge is a ground-anchored suspension bridge with a single main cable inclined suspender. A gravity anchorage and main tower are installed on the north and south banks respectively. The anchorage height is 31m. The anchor body, 9m of which is exposed to the ground; the main tower is an A-shaped structure with a height of 104.811m. It adopts an all-steel box structure and is composed of tower columns and beams. The tower columns adopt a three-dimensional variable section, and the section gradually becomes smaller from bottom to top. The saddle beam is set on the top of the main tower, the main cable saddle is installed on the beam, and the tower crown is placed on the saddle beam. The main bridge adopts flat and streamlined steel box girder. The main bridge has a total length of 510m, a bridge deck width of 38m, and a steel box girder height of 3.5m. The bridge adopts a single main cable, and the main tower is anchored to the anchorages on both sides ...

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Abstract

The invention discloses a construction method of a single main cable inclined-suspender earth anchored suspension bridge, which is characterized by comprising the following steps of: respectively completing anchoring construction, main tower construction, steel box girder construction, main cable construction and suspender construction, then drawing a front anchor head of a suspender by adopting a jack, and fixing on a steel box girder; regulating the tensile force of the suspender till the tensile force of the suspender and the line shape of a main cable meet the requirements; disassembling all temporary supporting seats, and lowering the steel box girder to a main tower beam as a permanent supporting seat so as to complete the construction. The whole construction process has safety and reliability so as to provide a necessary precondition for ensuring project quality. The construction method has reasonability, high efficiency and concision, can not only ensure the project progress, but also effectively reduce the construction cost.

Description

technical field [0001] The invention relates to a bridge construction method, more specifically to a suspension bridge construction method. Background technique [0002] With the continuous progress of society, bridges have become an indispensable part of highways, railways and urban roads. Bridges can effectively shorten the length of lines and save engineering costs. In urban road networks, most bridges are also used as urban landscapes or signs Sexual buildings to beautify the city. The ground-anchored suspension cable with single main cable inclined suspender is a new form of suspension bridge, such as Figure 1a , Figure 1b and Figure 1c As shown, its structural form is that a gravity anchorage 100 and a main tower 200 are respectively arranged at both ends of the bridge. The main tower 200 is A-shaped, and the A-shaped main tower adopts an all-steel box structure. The tower column 201 is composed of the main tower beam 202 connected between two inclined main tower...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D11/02E02D19/04
Inventor 唐俊姚松柏李飞周新亚王玉林周运志杨慧丰李光均夏亚飞冯海珍彭涤飞
Owner CHINA TIESIJU CIVIL ENG GRP CO LTD
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