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Span-division erection construction method of construction catwalk of multi-tower suspension bridge

A construction method and technology for suspension bridges, which are applied in the directions of suspension bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of low construction efficiency and inability to meet the construction requirements of erection.

Inactive Publication Date: 2012-03-28
CCCC SHEC SECOND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For catwalks of multi-tower and multi-span suspension bridges (the catwalk has four spans and above), the traditional erection method is adopted, the construction efficiency is relatively low, and it cannot meet the construction requirements of the catwalk load-bearing cables for the catwalk construction of multi-tower suspension bridges

Method used

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  • Span-division erection construction method of construction catwalk of multi-tower suspension bridge
  • Span-division erection construction method of construction catwalk of multi-tower suspension bridge
  • Span-division erection construction method of construction catwalk of multi-tower suspension bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The catwalk construction method of the multi-tower suspension bridge is to divide the multi-span construction catwalk into spans, and every two spans are divided into a construction section, and each construction section is equipped with a corresponding single-line reciprocating traction system, such as figure 1 , figure 2 As shown, the present embodiment is a three-tower suspension bridge, the construction catwalk is a four-span catwalk, and two sets of single-line reciprocating traction systems are set with the second cable tower 3 as a boundary, and each single-line reciprocating traction system independently erects catwalk load-bearing cables, and finally After the section erection is completed, the load-bearing cables of the catwalk are fixed at the section.

[0031] Because the present invention is a set of independent traction system to undertake the erection of a construction catwalk in one section, the sequential operation of erecting the catwalk is multi-poin...

Embodiment 2

[0033] Such as image 3 , 4 , 5, wherein one set of single-line reciprocating traction system in the above embodiment is composed of the first traction system hoist 1-1, the first traction cable guide wheel 1-2, the first tower top traction cable guide wheel group 1-3 1. The first traction cable 1-4, the first puller 1-5, the second traction cable 1-6, the second traction cable guide wheel 1-7, and the second traction system winch 1-8.

[0034] The first traction system winch 1-1 and the first traction cable guide wheel 1-2 are fixed at the first anchorage 1, and the first tower top traction cable guide wheel set 1-3 is fixed at the top of the first cable tower 2 , the tower top of the second cable tower 3 is fixed with a second traction cable guide wheel 1-7, and the tower bottom of the second cable tower 3 is fixed with a second traction system hoist 1-8; the first traction system hoist 1-1 The first traction cable 1-4 is connected to the first puller 1-5 through the first...

Embodiment 3

[0040] Such as Figure 6 , 7 , 8, in the two sets of single-wire reciprocating traction systems of embodiment 1, another set of single-wire reciprocating traction systems matched with embodiment 2 is composed of the third traction system hoist 2-1, the third traction cable guide wheel 2-2 , the second tower top traction cable guide wheel group 2-3, the third traction cable 2-4, the second puller 2-5, the fourth traction cable 2-6, the fourth traction cable guide wheel 2-7, the The four traction system consists of 2-8 hoists.

[0041] The third traction system hoist 2-1 and the third traction cable guide wheel 2-2 are fixed at the second anchorage 5, and the second tower top traction cable guide wheel group 2-3 is fixed at the top of the third cable tower 4 , the tower top of the second cable tower 3 is fixed with the fourth traction cable guide wheel 2-7, the tower bottom of the second cable tower 3 is fixed with the fourth traction system hoist 2-8; the third traction syste...

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Abstract

The invention relates to the field of construction of multi-tower suspension bridges, and particularly relates to a span-division erection construction method of a construction catwalk of a multi-tower suspension bridge. The construction method is characterized in that: a multi-span construction catwalk is divided into different spans, every two spans of the construction catwalk are taken as a construction segment, each construction segment is provided with a corresponding single-line reciprocating traction system, a catwalk bearing rope is independently erected for each single-line reciprocating traction system and finally, the catwalk bearing ropes which are erected segment by segment are fixed at the segment positions. In the invention, the span-division erection construction method of the construction catwalk of the multi-tower suspension bridge is provided, thus the erection efficiency of the catwalk bearing ropes of the construction catwalk of the multi-tower suspension bridge is improved.

Description

technical field [0001] The invention relates to the construction field of a multi-tower suspension bridge, in particular to a method for constructing a multi-tower suspension bridge with divided spans for catwalk construction. Background technique [0002] In my country's highway traffic and other infrastructure construction, as the suspension bridge with the strongest spanning ability, it is always the preferred bridge type for crossing rivers and seas. In recent years, in order to solve the traffic engineering construction requirements of large rivers and straits with wide water surface, three-tower (multi-tower) suspension bridges have gradually appeared in consideration of factors such as the spanning capacity of the traditional two-tower suspension bridge and the economic decline of the main span beyond a certain limit. Among them, the Taizhou Yangtze River Highway Bridge and the Ma'anshan Yangtze River Highway Bridge both adopt a three-tower two-span suspension bridge ...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D11/02
Inventor 沈良成先正权吉林冯兆祥金仓陈策杜洪池杨宁陈兵华孙存良周畅刘苗林海峰
Owner CCCC SHEC SECOND ENG
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