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Large-volume steel net rack integral lifting device and construction method

A technology of overall lifting and construction method, applied in the direction of lifting equipment braking device, hoisting device, transportation and packaging, etc., can solve the problems of reduced overall stability of the grid frame, difficult disassembly of the lifting bracket, and increased installation space. The effect of reducing the lifting control factor, reducing the reserved installation space, and high disassembly efficiency

Pending Publication Date: 2021-03-30
CHANGJIANG & JINGGONG STEEL STRUCTURE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the method overcomes the defects of the prior art, a plurality of lifting brackets are set in the method, and the installation space positions of the lifting brackets and the support structure columns of the grid frame are set in the grid frame, thereby causing an increase in the installation space positions, and the grid frame as a whole The stability is reduced, which is not conducive to the overall improvement; during the installation process, the lifting chain, manual restraint chain and wind rope cooperate with each other to install the grid frame at the design position. In actual use, multiple factors need to be controlled. The adjustment is more troublesome, which reduces the construction efficiency; after the installation of the network frame, due to the existence of the support structure column of the network frame, the lifting bracket is not easy to disassemble, the disassembly is difficult, and the disassembly efficiency is low

Method used

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  • Large-volume steel net rack integral lifting device and construction method
  • Large-volume steel net rack integral lifting device and construction method
  • Large-volume steel net rack integral lifting device and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Such as Figure 1-3 As shown, a large-volume steel grid overall lifting device, including the side support structure column 1 established on the ground surface, the middle support structure column 2 and the grid frame 3 to be lifted spliced ​​on the ground, the grid frame 3 is reserved with edge The installation space of the support structure column 1 and the middle support structure column 2, the outer side of the side support structure column 1 is provided with a lifting support column 4, and a lifting beam frame 5 is supported and installed between the mutually symmetrical side lifting support columns 4, A hydraulic lifter 6 is installed on the lifting beam frame 5, and one end of the hydraulic lifter 6 is connected to a steel strand 7 and the steel strand 7 is connected to a preset lifting point provided at the lower chord of the grid frame 3, and the lifting support column 4 A chain hoist 8 is installed close to one side of the grid 3 , and the chain hoist 8 is con...

Embodiment 2

[0036] A construction method for the overall lifting of a large-volume steel grid structure, comprising the following steps:

[0037] 1) According to the design requirements, determine the positions of the side support structure column 1 and the middle support structure column 2 and install them on the ground. splicing and assembling into a whole, the grid 3 reserves space at the positions of the side support structure column 1 and the middle support structure column 2, and determines the initial offset of the X-axis and the Y-axis;

[0038] 2) According to the design position, the lifting support column 4 is installed on the outside of the side support structure column 1, and the lifting beam frame 5 is supported and installed on the top of the two symmetrical lifting support columns 4;

[0039] 3) Load-bearing frame 9 is installed on the top of middle support structure column 2, and the bottom of load-bearing frame 9 and lifting beam frame 5 is supported and installed;

[0...

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Abstract

The invention discloses a large-volume steel net rack integral lifting device. Lifting supporting columns are arranged outside side supporting structure columns; a lifting beam frame is installed between side lifting supporting columns in a supporting mode; the lifting beam frame is connected with a net rack lower chord preset lifting point through a hydraulic lifter; and the lifting supporting columns are connected with a net rack outer side lower chord preset lifting point through a chain block. A construction method includes the steps of determining initial offsets of an X axis and a Y axis; mounting the lifting support columns and the lifting beam frame; installing the hydraulic lifter and the chain block, and connecting the hydraulic lifter and the chain block with the net rack presetlifting point; and after lifting and adjusting, positioning and fixing a net rack. According to the large-volume steel net rack integral lifting device, the lifting supporting columns and the liftingbeam frame are arranged at the outer sides of the side supporting structure columns, so that a reserved mounting space is reduced, and the overall stability of the net rack is improved; the hydrauliclifter and the chain block are matched to lift the net rack, so that lifting control factors are reduced, adjustment is convenient, and the construction efficiency is improved; and the lifting supporting columns and the lifting beam frame are arranged on the outer side face of the net rack, so that dismounting is convenient, and the dismounting efficiency is high.

Description

technical field [0001] The invention relates to the technical field of building structure installation, in particular to an overall lifting device and construction method for a large-volume steel grid frame. Background technique [0002] In recent years, with the development of my country's industry, especially key construction projects, the construction of large-scale and long-span industrial plants is also increasing. Among them, the steel grid frame has the advantages of light weight, large span and fast construction due to its superior mechanical performance. , Widely used in industrial and civil buildings. [0003] At present, there are mainly the following three feasible hoisting and lifting methods for the steel grid structure: first, erecting a full house scaffold, or using a combination of partial sliding scaffolding and full house scaffolding, and assembling at high altitude; Lifting; third, the overall lifting after ground assembly, and the third method has the hi...

Claims

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Application Information

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IPC IPC(8): E04G21/14E04G21/16B66C5/02
CPCE04G21/14E04G21/162B66C5/02
Inventor 夏华谢贻军胡其飞管井兵潘华祥李振
Owner CHANGJIANG & JINGGONG STEEL STRUCTURE GRP CO LTD