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Mounting method for steel anchor beam of cable-stayed bridge and assembly jig and cable bent tower mounting platform used in method

A cable-stayed bridge steel and installation platform technology, applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of high operation difficulty, high risk, complicated procedures, etc., so as to reduce construction costs, save construction time, improve The effect of installation accuracy

Active Publication Date: 2013-08-14
ROAD & BRIDGE SOUTH CHINA EINGINEERING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the on-site installation of the steel anchor beam is affected by factors such as the layout of the construction site and the hoisting capacity. At present, there are mainly the following two construction schemes: one is to hoist the steel anchor beam and two steel corbels three times, and assemble them on the tower. Assembling, fine-tuning, and positioning, the disadvantages of this scheme are slow installation speed, complex process, high difficulty and high risk; second, steel anchor beams and steel corbels are first assembled on the ground to form a whole, and then hoisted as a whole to Fine adjustment and positioning are carried out on the tower. Due to the heavy overall weight of the steel anchor beam, the disadvantage of this solution is that it needs to be equipped with lifting equipment with strong lifting capacity.

Method used

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  • Mounting method for steel anchor beam of cable-stayed bridge and assembly jig and cable bent tower mounting platform used in method
  • Mounting method for steel anchor beam of cable-stayed bridge and assembly jig and cable bent tower mounting platform used in method
  • Mounting method for steel anchor beam of cable-stayed bridge and assembly jig and cable bent tower mounting platform used in method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Please refer to Figure 1-3 , is a schematic structural view of the cable-stayed bridge steel anchor beam assembled tire frame 1 in the present invention, and the assembled tire frame 1 includes a load-bearing structure 11 and a positioning structure 12 .

[0053]The load-bearing structure 11 includes a steel pipe column assembly 111 and is used to support the assembled components (that is, the steel corbel 3 and the steel anchor beam 4, see Figure 5A and Figure 5B ) of the load-bearing beam 112 .

[0054] The steel pipe upright assembly 111 includes four middle steel pipe uprights 111a arranged in the middle of the tire frame 1 and distributed in a rectangular shape and four side steel pipe uprights 111b arranged on both sides of the tire frame 1 . Four middle steel pipe columns 111a and four side steel pipe columns 111b jointly constitute the rectangular frame structure of the tire frame 1, wherein, the middle steel pipe columns 111a are higher than the side steel...

Embodiment 2

[0058] Please refer to Figure 4 , Figure 7A , Figure 7B and Figure 7C , is the schematic structural view of the cable-stayed bridge steel anchor beam tower installation platform 2 in the present invention, the installation platform 2 includes two H-shaped brackets connected front and rear, which are respectively the front H-shaped bracket 2a and the rear H-shaped bracket 2b, so that Both the front H-shaped bracket 2a and the rear H-shaped bracket 2b include two parallel columns 21 and a beam 22 connected between the columns; further, the front H-shaped bracket 2a also includes The distribution beam 23, three jacking brackets 24 evenly arranged between the distribution beam 23 and the cross beam 22 and the jack 25 arranged on the upper end of the column 21 and directed to the axis of symmetry of the front H-shaped bracket.

[0059] Described installation platform 2 is usually used in pairs, is arranged on the two ends of installed steel corbel 31, is positioned for next ...

Embodiment 3

[0061] Below the installation method of the cable-stayed bridge steel anchor beam that utilizes above-mentioned steel anchor beam to assemble tire frame 1 and the steel anchor beam cable tower installation platform 2 of the present invention to be further described, its steps are as follows:

[0062] (1) Set up the steel anchor beam assembly tire frame 1 as described in Embodiment 1;

[0063] (2) Lift the steel anchor beam 4 to the first load-bearing beam 112a of the tire frame 1 for positioning, such as Figure 6A shown;

[0064] (3) hoisting the steel corbel 3 onto the fourth positioning beam 122d on the tire frame 3, and positioning it with the steel anchor beam 4 in the step (2), so that the steel corbel 3 is supported on the steel anchor beam 4, use the jack 113 to adjust the elevation and level of the steel corbel 3, and then use the connecting bolt 5 between the steel anchor beam 4 and the steel corbel 3 to fix the two screws, and repeat Measure the elevation and leve...

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Abstract

The invention discloses a mounting method for a steel anchor beam of a cable-stayed bridge and an assembly jig and a cable bent tower mounting platform used in the method. The steel anchor beam and steel corbels are preassembled on the steel anchor beam assembly jig, a hoist is used for replacing the steel anchor beam to hoist the steel corbels and the assembly jig integrally, the steel corbels are positioned and mounted through the steel anchor beam cable bent tower mounting platform on a cable bent tower, and the steel anchor beam is assembled. According to the mounting method for the steel anchor beam of the cable-stayed bridge and the assembly jig and the cable bent tower mounting platform used in the method, construction costs are saved, construction processes are simple and convenient, and accurate adjustment and positioning is facilitated.

Description

technical field [0001] The invention relates to a road and bridge construction technology, in particular to a method for installing a steel anchor beam of a cable-stayed bridge and the used assembled tire frame and cable tower installation platform. Background technique [0002] A cable-stayed bridge is a bridge whose deck system is under compression and its support system is under tension. The deck system is composed of stiffened beams, and its support system is composed of steel cables. Since the Stromsun Bridge in Sweden opened the prelude to the construction of modern cable-stayed bridges in 1956, with the development of material science and computer science, a large number of cable-stayed bridges have been built at home and abroad, and their spans are gradually increasing. Cable-stayed bridges develop rapidly due to their large spanning capacity, good structural performance, simple construction, easy maintenance, low cost and light and beautiful appearance. The main fe...

Claims

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Application Information

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IPC IPC(8): E01D21/00
Inventor 肖向荣李鸿文庄值政何志强张敬弦刘怀刚
Owner ROAD & BRIDGE SOUTH CHINA EINGINEERING CO LTD
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