Construction method for laying suspension bridge catwalk

A construction method and technology of suspension bridges, applied in bridge construction, bridge, erection/assembly of bridges, etc., to achieve the effect of simple process and reducing the risk of high-altitude operations

Active Publication Date: 2015-12-16
JIANGSU FASTEN STEEL CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a construction method for laying catwalks of suspension bridges in view of the above-mentioned prior art, which is safe and reliable, has simple procedures, reduces the risk of high-altitude operations, and does not have the problems of cross-operation phenomenon and regional space limitations

Method used

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  • Construction method for laying suspension bridge catwalk
  • Construction method for laying suspension bridge catwalk
  • Construction method for laying suspension bridge catwalk

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0039] Such as figure 1 — image 3 As shown, a construction method for laying a suspension bridge catwalk in this embodiment, this construction method has changed the traditional slide-down laying method from a high place to a low place, and adopts a pull-up laying method from a low place to a high place , the method mainly includes the following steps:

[0040] Step 1. Erection of catwalk load-bearing cables

[0041] The catwalk load-bearing cables are erected between the cable towers of the suspension bridge, and the verticality of the load-bearing cables is adjusted according to the actual situation to facilitate the subsequent laying of the catwalk surface.

[0042] Step 2. Install the operating platform and power equipment

[0043] Use the bracket to install the hanging basket at the lowest point where the load-bearing cable is away f...

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Abstract

The invention relates to a construction method for laying a suspension bridge catwalk. After erecting and sag adjusting of catwalk load-bearing cables and catwalk portal load-bearing cables are completed, the process of laying a catwalk surface layer is carried out, a basket is installed at the portions, closest to a bridge, of the load-bearing cables through a support, and steel wire gauze slices, anti-skidding planks and other needed facilities are lifted and placed in the basket through a lifting device. The basket serves as a stacking platform and also serves as an operating platform used for installing the steel wire gauze slices and the anti-skidding planks. A winch is installed on a tower, the steel wire gauze slices installed by workers are sequentially lifted in the mode that the winch winds steel wire ropes, and every time the steel wire ropes move by the distance of one steel wire gauze slice, the workers install one new slice and connect the new slice with the former slice, so that laying of the catwalk gauze face from the lower end to the upper end is completed. Similarly, laying of the other side is completed with the method.

Description

technical field [0001] The invention relates to the construction field of suspension bridges, in particular to a construction method for laying catwalks of suspension bridges. Background technique [0002] The catwalk is a necessary temporary structure for the construction of suspension bridges. It provides construction operation platforms, material and tool transportation channels for main cable erection, cable clamp and sling installation, steel box girder hoisting, and main cable protection. It is used from the beginning to the end. During the installation and construction process of the entire suspension bridge superstructure, the surface layer of the catwalk is composed of load-bearing nets, walking nets and non-slip square timber. [0003] Laying of traditional catwalk surface [0004] After the catwalk load-bearing cables and catwalk gantry load-bearing cables are erected and the sag adjustment is completed, the catwalk surface layer is laid. The catwalk surface ado...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
Inventor 赵军官幼平匡建国姚永峰周强生江华顾宏勤
Owner JIANGSU FASTEN STEEL CABLE CO LTD
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