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Large-span integral lifting method for roof frame

An overall lifting and long-span technology, applied in the direction of construction, building structure, and building material processing, can solve problems such as restrictions, large labor force, and long time, so as to solve the constraints of installation conditions, improve safety and efficiency, and ensure safety and quality effects

Active Publication Date: 2012-12-05
SHANGHAI GENERAL METAL STRUCTURE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this traditional method consumes a long time and requires a lot of labor. The cross-sectional geometric dimensions, verticality, bending height, camber, and welding quality of the joints of the components are more difficult to control than those assembled on the ground.
[0003] Long-span roof truss structures usually have super-long spans and heavy weights. At the same time, due to the limitations of on-site construction conditions, ordinary large-scale cranes cannot be used for hoisting operations.

Method used

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  • Large-span integral lifting method for roof frame
  • Large-span integral lifting method for roof frame

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Embodiment Construction

[0016] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] refer to figure 1 , the overall lifting method of the large-span roof truss of the present invention mainly includes the following four steps:

[0018] S11: dividing the entire roof truss into multiple support areas;

[0019] S12: find out the center of gravity of each support area;

[0020] S13: setting a support member at the center of gravity of each support area;

[0021] S14: Stress and travel speed of synchronous supports.

[0022] The specific implementation steps of the present invention will be described below for each step.

[0023] First, divide the entire roof truss into support areas. For example, for the usual large-scale roof trusses, it is generally necessary to divide 6 to 7 support areas per 100 square meters. Of course, for roof trusses with irregular shapes, there may be more detailed divisions....

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Abstract

The invention discloses a large-span integral lifting method for a roof frame. The large-span integral lifting method comprises the following steps: 1, dividing the whole roof frame into multiple supporting regions; 2, finding out the gravity of each supporting region; 3, configuring a supporting part for the gravity of each supporting region; and 4, synchronizing the stresses and the traveling speeds of the supporting parts. Due to the adoption of the technical scheme, the problem of mounting condition limitation is effectively solved, the operation is simple, convenient, safe and reliable, and the safety and the quality of mounting construction are guaranteed. Compared with the general large crane lifting process, the mounting process is safer, convenient, economic and efficient, and the safety and the efficiency of mounting construction are improved.

Description

technical field [0001] The present invention relates to a hoisting construction method, more specifically, to a method for overall lifting of a large-span roof truss Background technique [0002] The common method of installing long-span steel roof trusses is to use a crane to directly hoist them in place. When the steel roof truss is installed outside the working radius of the crane or cannot be hoisted directly by the crane due to site conditions, the traditional method is to build a full house of scaffolding and assemble the rods on the scaffold. However, this traditional method consumes a long time and requires a lot of labor. The cross-sectional geometric dimensions, verticality, bending height, camber, and welding quality of the joints of the components are more difficult to control than those assembled on the ground. [0003] Long-span roof truss structures usually have super long spans and heavy weights. At the same time, due to the limitations of on-site constructi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/14
Inventor 朱若兰毕辉杨凡
Owner SHANGHAI GENERAL METAL STRUCTURE ENG
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