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Construction method of integrally rotating, drawing up and slipping large steel arch structure

A construction method and giant technology, applied to building components, building structures, roofs, etc., can solve the problems of unfavorable stress state and large influence degree of the structure, so as to achieve clear force magnitude, safety guarantee, and avoid uncertainty Effect

Inactive Publication Date: 2010-06-09
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a giant steel arch structure whose self-weight accounts for a large proportion of the total load it bears, the use of the above method has a great influence on the final internal force state of the structure, which may put the structure in an extremely unfavorable stress state

Method used

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  • Construction method of integrally rotating, drawing up and slipping large steel arch structure
  • Construction method of integrally rotating, drawing up and slipping large steel arch structure
  • Construction method of integrally rotating, drawing up and slipping large steel arch structure

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Embodiment approach

[0053] Step (1): Set up the construction environment required by the overall rotation-lifting-sliding method; figure 2 As shown, when the giant steel arch is at the construction target position, the line connecting the two arch feet is recorded as the axis (AB); specifically follow steps (1.1) to (1.4);

[0054] Step (1.1): Assemble the giant steel arch 1: At a distance L parallel to the axis (AB) 1 Assemble a giant steel arch at a distance of L 1 The giant steel arch does not collide with the roof structure during the lifting process; the giant steel arch is assembled on the ground; the arch foot 2 is hinged to the foundation; the connection between the two arch feet of the giant steel arch in the completed state of assembly is the axis (CD);

[0055] Step (1.2): erect the A-shaped support frame 3, install the lifting rope 4, the back cable 5, and the through-heart tension jack 7, and proceed according to steps (1.2.1) to (1.2.3):

[0056] Step (1.2.1): At a distance L pa...

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Abstract

The invention relates to a construction method of integrally rotating, drawing up and slipping a large steel arch structure, belonging to the technical field of construction. The method is realized in a construction environment formed by large steel arches and a series of construction auxiliary equipment according to some steps. The large steel arches are assembled on the ground after parallel movement having a certain distance with a design position, and then rotate and carry out drawing up around two skewback connecting lines; rotation and drawing up of each large steel arch are realized by depending on pulling up a sling by a cross-core jack arranged at the top part of an A-shaped support frame; controlling each large steel arch to slip after rotating and drawing up each large steel arch to a state of a little inclining with a vertical surface so as to boost the jack to force the push force on skewbacks and enable each large steel arch to slowly slip in a grading way by making use of the forward push force of the skewbacks under the deadweight action; at each grading target state position, the slippage of each steel arch is paused so as to carry out regulation of large steel arch height once; and after the skewbacks slip to the design position, the height of each large steel arch is regulated for the last time so as to enable each large steel arch to achieve a design configuration and fix the skewbacks according to the design requirements finally.

Description

technical field [0001] The invention relates to an installation method of a giant steel arch structure, belonging to the technical field of construction. Background technique [0002] With the progress of society and the rapid development of economy and science and technology, it is the general trend to adopt more novel structural forms in large public building structures. At present, in a large number of space structure projects represented by large stadiums and exhibition centers, a new type of giant steel arch cable-stayed roof structure is adopted for the long-span roof structure, that is, the giant steel arch suspends the space roof structure. Hanging up can avoid setting more supporting columns inside the roof, so as to meet the requirements of building use for indoor clearance. This structural form not only meets the requirement of a large indoor clear span, but also greatly improves the efficiency of the structure's bearing capacity. Due to the lifting effect of th...

Claims

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Application Information

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IPC IPC(8): E04B1/342E04B7/08E04G21/14
Inventor 郭彦林王小安
Owner TSINGHUA UNIV
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