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Lifting process of large-span net rack and truss combined roof

A large-span and truss technology, which is applied in the processing of building materials, construction, building construction, etc., can solve the problems of different heights between grids and trusses, and the inability to directly adopt the overall lifting method, etc.

Pending Publication Date: 2021-09-07
ZHEJIANG YIJIAN CONSTR GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the overall hoisting method and the overall jacking method, the overall lifting method is more suitable for the construction of large-span structures, and the lifting equipment is simple. holistic approach

Method used

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  • Lifting process of large-span net rack and truss combined roof
  • Lifting process of large-span net rack and truss combined roof
  • Lifting process of large-span net rack and truss combined roof

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] A lifting process for a large-span grid and truss composite roof, comprising the following steps:

[0046] Step (1), lifting lifting point arrangement. According to the floor plan of the roof and the floor plan of the roof support, and comprehensively considering the coverage of the first lifting, the coverage of the second lifting, the type and power of the commonly used hydraulic lifter, estimate the number of lifting points required , When arranging the hoisting points, use the roof support as much as possible, and make each hydraulic lifter evenly loaded. After comprehensive consideration, a total of 12 sets of lifting points are set up, of which 10 sets of lifting points are set on the roof support, and the other 2 sets of lifting points are set on the temporary lifting point support frame during the first lift, and moved forward to the truss during the se...

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PUM

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Abstract

The invention discloses a lifting process for a large-span net rack and truss combined roof comprises the following steps that arranging lifting points; selecting a hydraulic lifter; selecting a steel strand; selecting a hydraulic system; selecting a hydraulic synchronous lifting system; designing a lifting platform; designing a temporary lifting point support frame; performing finite element analysis on the lifting platform and the roof; assembling net rack structures on the ground to form an integral lifting unit; erecting the lifting platform, and installing the hydraulic lifter; installing a guide frame used for being matched with the hydraulic lifter; arranging an auxiliary lifting appliance used for lifting; mounting the steel strands; connecting a hydraulic pipeline; connecting a control system and a power line; checking work before debugging; system debugging before lifting; carrying out graded loading and trial lifting; formal lifting for the first time; assembling the net rack which is lifted for the first time and the truss which is not lifted; lifting lifting point conversion; preparation before secondary lifting; lifting for the second time; and dismantling equipment and facilities. The lifting problem that in the roof lifting process, the height of the net rack is not consistent with that of a truss roof is solved.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a lifting process for a combined roof of a large-span grid frame and truss. Background technique [0002] At present, the commonly used construction and installation methods for large-scale steel structure roofs mainly include: 1. Directly assemble at the design installation position at high altitude or slide to the design position after high-altitude assembly, such as high-altitude bulk method, high-altitude sliding method, etc.; 2. On the ground first. After assembly, install it to the design position, such as the overall hoisting method, the overall lifting method, the overall jacking method, etc. Compared with the high-altitude bulk method and high-altitude sliding method, the overall lifting method has the following advantages: because the main assembly, welding, and painting are carried out on the ground, the construction efficiency is high, and...

Claims

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Application Information

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IPC IPC(8): E04G21/14E04G21/16E04G21/18
CPCE04G21/14E04G21/16E04G21/18E04G21/142E04G21/162E04G21/1841
Inventor 朱珉钟逸晨于康张报成李萍胡静静卢遥孙波
Owner ZHEJIANG YIJIAN CONSTR GROUP