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Jacking construction method for welding large-span spherical cylindrical reticulated shell

A technology of cylindrical reticulated shells and construction methods, which is applied in the direction of lifting devices, buildings, building structures, etc., can solve problems such as many uncontrollable factors, dangerous operations, and long hours of high-altitude operations, so as to achieve reliable safety risks and safety risk control Effect

Inactive Publication Date: 2020-04-21
徐州中煤(宁夏)钢结构建设有限公司 +3
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Problems solved by technology

[0004] The purpose of the present invention is to invent a large-span welded ball column that changes aerial work into ground work in view of the long time of high-altitude operation, dangerous operation, and too many uncontrollable factors in the existing construction method of welded spherical reticulated shells. Jacking construction method of reticulated shell

Method used

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  • Jacking construction method for welding large-span spherical cylindrical reticulated shell
  • Jacking construction method for welding large-span spherical cylindrical reticulated shell
  • Jacking construction method for welding large-span spherical cylindrical reticulated shell

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Such as Figure 1-8 shown.

[0030] A sort of figure 1 The specific steps of the jacking construction method for the large-span welded spherical reticulated shell shown are as follows:

[0031] 1. Basic review;

[0032] First, according to the design drawings, the chief supervisory engineer organizes the design and construction units to check the axis size, position, levelness, elevation and support anchor bolt position and other parameters of the foundation cross line popped up by the civil engineering unit, and review according to the requirements of the design and construction specifications , to rectify the parameters that do not meet the requirements of the design and construction specifications, and to review the rectified basis and then go through the intermediate handover procedures. The position, elevation, levelness of the top plate...

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Abstract

The invention relates to a jacking construction method for welding a large-span spherical cylindrical reticulated shell. The method is characterized in that the reticulated shell is assembled from oneend support of the cylindrical reticulated shell one by one grid along the radian of the cylindrical reticulated shell, a temporary support needs to be added along with the increase of the arc lengthin the assembly process so as to continue the assembly, in order to reduce the change frequency of the positions of the temporary support, jacking frames are used for gradually lifting the height ofan assembly node so as to meet the continuous assembly of the reticulated shell, and due to the limitation of the overhanging length of the assembled end of the reticulated shell, the jacking frames need to move in the assembling direction. In order to ensure the safety of the jacking process and the overall size of the reticulated shell, a tensioning steel wire rope is adopted for horizontal displacement control in the continuous assembling process of the reticulated shell. A space structure is placed on the ground for construction, and the design size, the construction speed, the construction quality and the safety risk can be reliably controlled.

Description

technical field [0001] The invention relates to a steel structure technology, especially a cylindrical reticulated shell with a span of less than 120m along the span direction, using jacking equipment from one end support to lift the reticulated shell to meet the assembly of the next node, and then stop the jacking. Lifting, extending outward to assemble the reticulated shell, during the extension and assembling process, immediately install the jacking equipment at the corresponding position, continue to assemble and weld while lifting, until the reticulated shell is completely installed, specifically a reticulated shell construction method A construction method for a cylindrical shell of a long-span steel structure. Background technique [0002] At present, cylindrical reticulated shells are widely used in coal, electric power, cement, steel, chemical and other industries. They are specially constructed to protect materials such as stackers and reclaimers and coal stored in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/14B66F3/46B66F3/24
CPCB66F3/24B66F3/46E04G21/14
Inventor 李立武周文德刘剑张新华
Owner 徐州中煤(宁夏)钢结构建设有限公司
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