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Construction method for lifting whole steel structural roof with large span and complicated design

A technology of overall improvement and construction method, applied in building structure, construction, building material processing and other directions, can solve problems such as high cost, long time, and large safety hazards, avoid high-altitude operations, shorten construction period, and accurately locate handy effect

Inactive Publication Date: 2009-09-02
青建集团股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this kind of grid structure, most of them adopt the traditional construction method of erecting a full house of scaffolding and high-altitude assembly. This construction method takes a long time to build a full house of scaffolding, the cost is high, and other processes cannot be interspersed with construction. The positioning of the high-altitude assembled grid ball is difficult and safe. Hidden danger

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0007] Taking a swimming competition hall as an example, a construction method for the overall lifting of a large-span complex-shaped steel structure roof is completed in the following steps:

[0008] 1) It is divided into 3 lifting units of the competition pool, the diving pool and the warm-up pool, and the grid frames are assembled separately and independently lifted to ±0.0m;

[0009] 2) At the elevation of ±0.0m, assemble the net frame of the competition pool and the diving pool into a unit, raise the unit and the net frame of the warm-up pool to an elevation of 8.4m respectively, expand and assemble them into a whole, and then proceed sequentially Expansion assembly and lifting at different levels until the design level of the grid;

[0010] 3) While the indoor grid is being assembled and lifted, the outdoor grid is assembled in 5 units, and then connected to the indoor grid respectively.

[0011] 4) After the indoor and outdoor grids are docked to form a whole, the unlo...

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Abstract

The invention discloses a construction method for lifting whole steel structural roof with large span and complicated design. The method comprises the following steps: (1) dividing the roof into a plurality of lifting units according to the construction requirements and lifting the units independently; (2) completing the preliminary assembly of the lifting units, lifting the units respectively once again to the height near the designed elevation, and then carrying out expanded assembly and lifting at different elevations to the designed elevation of a rack after expanding and assembling all the lifting units into a whole; (3) assembling outdoor racks by units while assembling and lifting indoor racks, and then butting the outdoor racks with the indoor racks respectively; and (4) unloading the racks step by step after butting the indoor racks and the outdoor racks into a whole. The construction method for racks is to carry out assembling and welding on the ground entirely, thereby avoiding aloft work. The method has the advantages of more accurate and convenient positioning, reduction of the cost for erecting the racks and great shortening of total construction period.

Description

technical field [0001] The invention belongs to the technical field of construction, and in particular relates to a construction method for overall lifting of a steel structure network frame. Background technique [0002] With the rapid development of my country's economy and the continuous improvement of people's living standards, in order to meet people's growing needs for material and cultural activities, many large-scale public buildings have been built successively across the country, such as airports, convention centers, gymnasiums, etc. These large-scale Most of the space public buildings adopt the grid structure with large span and complex shape. For this kind of grid structure, most of them adopt the traditional construction method of erecting a full house of scaffolding and high-altitude assembly. This construction method takes a long time to build a full house of scaffolding, the cost is high, and other processes cannot be interspersed with construction. The positi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/14
Inventor 张同波王辉张纪刚
Owner 青建集团股份公司
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