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Cable-stayed bridge construction method

A construction method and technology for cable-stayed bridges, which are applied in the directions of cable-stayed bridges, bridges, bridge construction, etc., can solve the problem of destroying the integrity and continuity of cable-stayed bridges, changing the force of cable-stayed cables and difficult to remedy, and reducing the bearing capacity of cable-stayed bridges. It can achieve the effect of good economic benefits, large bearing capacity, and improved force balance.

Pending Publication Date: 2022-08-02
THE THIRD ENG OF CHINA RAILWAY 12TH BUREAU GROUP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The separate pouring of the main girder and bridge tower destroys the integrity and continuity of the cable-stayed bridge and reduces the bearing capacity of the cable-stayed bridge; after the cable is hung, the cable force is adjusted to the design value at one time. Changed conditions are not easily remedied

Method used

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  • Cable-stayed bridge construction method
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  • Cable-stayed bridge construction method

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Embodiment Construction

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] This embodiment provides a cable-stayed bridge construction method, which includes the following steps.

[0044] S1, construction of the substructure, including leveling the site (rough leveling), measuring the pile position (GPS measurement), burying the casing and taking safety measures, drilling holes with a rotary drilling rig, lowering the reinforcement cage, pouring concrete, pier columns or tie beams Vertical formwork, binding steel bars, pouring concrete, curing and forming, inspection ...

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Abstract

The invention provides a construction method of a cable-stayed bridge, belongs to the technical field of bridge construction, realizes integral pouring of a main beam and a bridge tower, is good in integrity and larger in bearing capacity, slowly and intermittently tensions stay cables to generate memorability, avoids stress change of the stay cables in the later period, and improves the construction quality of the cable-stayed bridge. When the stay cables are symmetrically tensioned, secondary dead load and any construction load cannot be acted on the main beam, the stress balance is improved, fine construction steps determine high-quality engineering, the safety performance of the bridge is improved, the service life is longer, and good economic benefits are brought to enterprises and the society.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and specifically discloses a cable-stayed bridge construction method. Background technique [0002] Cable-stayed bridge, also known as cable-stayed bridge, is a kind of bridge in which the main beam is directly pulled on the bridge tower with many cables. structural system. It can be regarded as a multi-span elastic supporting continuous beam with stay cables instead of buttresses. It can reduce the bending moment in the beam body, reduce the building height, reduce the structural weight and save materials. Cable-stayed bridges are mainly composed of pylons, main beams and stay cables. Cable tower types include A type, inverted Y type, H type, single column, and the materials are steel and concrete. The stay cables are arranged with single cable plane, parallel double cable plane, oblique cable plane and so on. [0003] CN202010721983.3 discloses a cable-stayed bridge constructio...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D11/04E02D5/38E02D27/12E02D27/14
CPCE01D21/00E01D11/04E02D5/38E02D27/12E02D27/14Y02E10/72
Inventor 徐佳李鹏云刘新华王欣文李高马占凯马伟平朱智卓
Owner THE THIRD ENG OF CHINA RAILWAY 12TH BUREAU GROUP
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