Segmented hoisting construction method for large-span spherical crown-shaped net rack structure

A grid structure, segmented hoisting technology, applied in the direction of hoisting device, transportation and packaging, building construction, etc., can solve the problems of low work efficiency and high risk coefficient, improve the use efficiency, reduce safety risks, construction methods Convenient and fast effects

Inactive Publication Date: 2020-06-26
MCC5 GROUP CORP SHANGHAI
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a segmental hoisting construction method for a large-span spherical crown-shaped grid structure, which solves the problem of low work efficiency and high risk factor caused by downward deflection when the spherical crown-shaped grid structure is hoisted in segments in the prior art The problem

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  • Segmented hoisting construction method for large-span spherical crown-shaped net rack structure
  • Segmented hoisting construction method for large-span spherical crown-shaped net rack structure
  • Segmented hoisting construction method for large-span spherical crown-shaped net rack structure

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Embodiment Construction

[0028] Below in conjunction with accompanying drawing, structure and working process of the present invention will be further described.

[0029] The segmental hoisting construction method of the large-span spherical crown-shaped grid structure adopts the layered and segmented hoisting method to install the spherical crown-shaped grid. After the first section of the grid assembly unit of each layer is hoisted,

[0030] First, set two back-pull wind ropes on the first section of grid assembly unit, and the distance between the two wind ropes is one end;

[0031] Secondly, hoist from the next section of grid assembly unit in turn, and after each section of grid assembly unit is hoisted, a back-pull type cable wind rope is installed on the section of grid assembly unit;

[0032] Then, remove the cable wind rope in the middle position until the grid assembly unit of this layer forms an arc, and then remove all the cable wind ropes;

[0033] Finally, continue to hoist the subseque...

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Abstract

The invention discloses a segmented hoisting construction method for a large-span spherical crown-shaped net rack structure. A spherical crown-shaped net rack is installed by adopting a layered and segmented hoisting method, and after a first segment of net rack assembly unit of each layer is hoisted, firstly, two back-pulling type cable ropes are arranged on the first segment of net rack assemblyunit, and the two cable ropes are spaced by a certain distance; secondly, hoisting is sequentially carried out from the next segment of net rack assembly unit, and after each segment of net rack assembly unit is hoisted, one back-pulling type cable rope is arranged on the segment of net rack assembly unit; and then, the cable rope in the middle position is removed until the segment of net rack assembly unit forms a section of radian, and all the cable ropes are removed; and finally, the subsequent net rack assembly unit is continuously hoisted until the layer of net rack is assembled. The method is mainly used for preventing the segmented net rack from being warped downwards, and the construction method is convenient, fast, safe and efficient. The aerial operation time is shortened, and the safety risk is reduced. The use efficiency of large hoisting equipment is improved, and the method is more economical than conventional installation.

Description

technical field [0001] The invention belongs to the field of construction methods of a spherical crown-shaped grid structure, and in particular relates to a segmental hoisting construction method of a large-span spherical crown-shaped grid structure. Background technique [0002] During the layered and segmented hoisting of the spherical crown grid structure, before the segmented spherical crown grid structure forms a longer arc and the overall rigidity is not formed, the grid structure will cause downward deflection due to its own weight and inclination angle, which will affect the subsequent segmental grid. The hoisting of the rack will reduce the utilization rate of hoisting equipment, prolong the time of personnel working at heights, and even cause quality and safety accidents in severe cases. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a segmental hoisting construction method for a large-span spherical c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/14E04G21/16B66C1/10B66D3/12
CPCB66C1/10B66D3/12E04G21/14E04G21/142E04G21/161E04G21/162
Inventor 毕亚魁祁迹王冬平舒真理
Owner MCC5 GROUP CORP SHANGHAI
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