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Long-span deformed steel truss and floor steel structure installation and construction method

A floor-to-ceiling steel structure and special-shaped steel technology, which is applied in the direction of building structure, construction, and building material processing, can solve the problems of complex building layout and difficult travel of large-tonnage cranes, and achieve easy assembly on site and increase spatial stability. , the effect of high product quality

Active Publication Date: 2016-03-30
CHINA CONSTR SIXTH ENG BUREAU CIVILENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the layout of the lower part of the grid structure is complicated, and it is difficult for a large-tonnage crane to travel on site

Method used

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  • Long-span deformed steel truss and floor steel structure installation and construction method
  • Long-span deformed steel truss and floor steel structure installation and construction method
  • Long-span deformed steel truss and floor steel structure installation and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] (1) Build a plurality of lifting frame foundations 12 at intervals along the inner sides of the ladder stands 7 on the left and right sides of the gymnasium that are symmetrically arranged and along the direction parallel to the ladder stands 7, and then install steel on each of the lifting frame foundations 12. Structure lifting frame 13, then on described steel structure lifting frame 13, lifting frame platform 4 is installed;

[0057] (2) lifter 5 is installed on described lifting frame platform 4, and steel strand 3 is connected at the lower end of described lifter 5;

[0058] (3) Temporary towers 14 are installed on the ground of the first lifting block unit 1 between the ladder stands 7 on both sides, and the first lifting block unit 1 of the main frame is assembled on the temporary towers. The distance between the left and right ends of the lifting block unit 1 is less than the distance between the inner sides of the stepped stands 7 on both sides, and the distan...

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Abstract

The invention discloses a long-span deformed steel truss and floor steel structure installation and construction method. The method includes the steps that firstly, a steel structure lifting frame and a lifting frame platform are installed on a lifting frame foundation; secondly, a lifter is installed on the lifting frame platform, and a steel strand is connected to the lower end of the lifter; thirdly, a first lifting partitioning unit of a main truss is spliced on a temporary tower between terraces on two sides; fourthly, the first lifting partitioning unit is hoisted by means of a temporary sling installed on the steel strand, then the left end and the right end of the first lifting partitioning unit extend to the terrace sides, and second lifting partitioning units are spliced; fifthly, the fourth step is repeated till the main truss of a gymnasium ceiling is spliced; seventhly, a front lifting partitioning unit, a left corner truss, a right corner truss, a front end truss and a rear end truss which are connected with the main truss are installed; eighthly, floor steel structures are installed along the outer facades of the outer side and the inner side of a gymnasium respectively. By the adoption of the method, loads can be effectively borne.

Description

technical field [0001] The invention relates to a grid frame and a construction method for a steel structure, in particular to a construction method for installing a special-shaped grid frame and a steel structure. Background technique [0002] The complex special-shaped long-span structural steel grid installation requires too many single components, large welding volume, and high welding quality and precision requirements. The site requirements and high-altitude space rigidity, stability, and safety factor are relatively high, so it is necessary to select an appropriate construction method for installation to ensure safety and stability requirements. In addition, the layout of the lower part of the network frame is complicated, and it is difficult for a large-tonnage crane to travel on site. The grid installation should ensure the stability coefficient and space rigidity, can effectively bear asymmetric load, concentrated load and dynamic load, and has good seismic perfor...

Claims

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Application Information

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IPC IPC(8): E04G21/14E04B1/342
CPCE04B1/342E04G21/14
Inventor 袁银书王丽梅王安鑫刘勇岳辉
Owner CHINA CONSTR SIXTH ENG BUREAU CIVILENG
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