Construction method of large-span through type rigid tied bar steel arch bridge

A construction method and technology for steel arch bridges, which are applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of long construction period, complex procedures, and large welding workload, simplify the transportation environment and equipment requirements, and speed up construction. progress, the effect of reducing workload

Inactive Publication Date: 2018-04-13
CHINA SINOCONST HEAVY IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcomings are: there are many arch rib joints, the welding workload is large, and the construction period is long; the requirements for the terrain and foundation under the bridge are relatively high
Engineering practice shows that the above-mentioned installation method has complex procedures, requires the erection of temporary auxiliary facilities, and has a long construction period, which has a great impact on the waterway

Method used

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  • Construction method of large-span through type rigid tied bar steel arch bridge
  • Construction method of large-span through type rigid tied bar steel arch bridge
  • Construction method of large-span through type rigid tied bar steel arch bridge

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Embodiment Construction

[0062] In order to facilitate a better understanding of the purpose, structure, features, and effects of the present invention, the present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0063] like Figure 13 and Figure 14 As shown, the steel arch bridge in the present invention comprises a bridge superstructure 1, a bridge substructure 2 and a bridge support 3 located between the bridge superstructure 1 and the bridge substructure 2, and the bridge superstructure 1 is a down-loaded rigid tie rod arch , the bridge substructure 2 is located on both banks of the narrow channel 4 , and the bridge superstructure 1 is erected on the narrow channel 4 .

[0064] The construction method includes the following steps:

[0065] Step 1: Complete the construction of the bridge substructure 2 at the bridge site. The bridge substructure 2 includes pile foundations 22 and bridge piers 21. During construction, construction ...

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Abstract

The invention discloses a construction method of a large-span through type rigid tied bar steel arch bridge. The steel arch bridge comprises a bridge superstructure, a bridge substructure and a bridgebearing. The construction method comprises the following steps that construction of the bridge substructure is conducted; sectional prefabrication of the bridge superstructure is conducted; integralassembling of the bridge superstructure is conducted; the bridge superstructure is overall hoisted through a floating crane; tugboats abreast tow the floating crane to sail in a main channel; the floating crane is subjected to load movement in a narrow river channel; and the bridge superstructure is overall mounted through position adjusting. According to the construction method, segmented-transporting of the bridge superstructure to a bridge site for overall assembling is not required, overall assembling of the overall assembling is completed in an overall assembling site of a wharf, and thenone floating crane is adopted to overall hoist the bridge superstructure to the bridge site for overall hoisting; and the scheme does not require building of a temporary support, the requirement of conditions of a construction site is low, impact on the surrounding environment is low, and the construction period is short.

Description

technical field [0001] The invention relates to a construction method of a large-span bottom-bearing rigid tied steel arch bridge, which belongs to the technical field of bridge construction. Background technique [0002] The construction of the arch bridge can adopt different construction methods according to different construction conditions, mainly including the bracket construction method, the cable hoisting method, the swivel construction method, the cantilever assembly method, and the overall lifting method of the arch rib. [0003] The bracket construction method is to assemble the scaffold according to the design line and pre-camber value of the arch rib at the bridge position, and then assemble it in place on the scaffold. The scaffold can be full or separate, or a combination of the two. The construction method with brackets is usually adopted when the arch rib is not high from the ground, there is no water under the bridge or the water level is not deep, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 杨亮琚亮高轩张涛方圆唐录兵
Owner CHINA SINOCONST HEAVY IND
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