Prestressing method for installing large-span double-layer latticed shell structure

A prestressed, long-span technology, applied in the direction of building structure, building materials processing, construction, etc., can solve the problems of reducing construction efficiency and increasing construction costs, so as to reduce construction costs, improve work efficiency and ensure construction safety Effect

Inactive Publication Date: 2010-09-22
宝厦建设(集团)股份有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional methods of installing large-span reticulated shell structures, such as strip or block installation, sliding method or comprehensive installation method, etc.

Method used

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  • Prestressing method for installing large-span double-layer latticed shell structure
  • Prestressing method for installing large-span double-layer latticed shell structure
  • Prestressing method for installing large-span double-layer latticed shell structure

Examples

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. The installation example is the dry coal shed project of a power plant in Suzhou City, Anhui Province; the total span of the project is 103m, the total depth is 80m, the arching height of the reticulated shell is 37M, and the projected area is about 8240m 2 . The lower chord is point-supported, and the square pyramid bolt ball net frame is placed upright, with a grid size of 4m. The specific installation steps are as follows:

[0015] 1. Reinforce the rotatable support at one end of the reticulated shell so that it can be rotated during the construction process, but it cannot be moved in any direction.

[0016] 2. Press figure 1 In the first step shown in (a), a section of reticulated shell is assembled on the ground, starting from the support at one end to a span of about 30 meters. Due to the short distance, the arching of the reticulated shell is no...

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PUM

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Abstract

The invention belongs to the technical field of building installation, in particular to a prestressing method for installing a large-span double-layer latticed shell structure, which comprises the following steps of: firstly, assembling one initial segment of a latticed shell on the ground, fixing one end of the initial segment on a support at one side through hinging, and hanging the other end with a crane; and assembling member bars by steps to extend till the support at the other side of a single latticed shell structure toward the other side of the support. The length of each extension segment equals to the length of 3-4 standard member bars. Whenever the latticed shell is extended by assembly, steel wire ropes are used for connecting the fixed hinge support and installed latticed shell tail nodes, and a prestressing force is applied so that the latticed shell and the steel wire ropes form a structure similar to a beam string structure. The installation method can avoid setting up a high altitude platform so as to increase working efficiency and reduce construction cost, and can also ensure construction safety.

Description

technical field [0001] The invention belongs to the technical field of building installation, and in particular relates to an installation method of a large-span double-layer reticulated shell structure. Background technique [0002] The traditional methods of installing large-span reticulated shell structures, such as strip or block installation, sliding method or comprehensive installation method, etc., always need to set up scaffolding or high-altitude installation platform during the installation process, which reduces the construction efficiency. Increased construction costs. The present invention can complete the installation of the large-span reticulated shell structure without setting up these high-altitude platforms by taking some appropriate mechanical measures. Contents of the invention [0003] The object of the present invention is to provide a method for installing a large-span double-layer reticulated shell structure with high construction efficiency and lo...

Claims

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Application Information

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IPC IPC(8): E04G21/14E04G21/12
Inventor 郁向盛肖平
Owner 宝厦建设(集团)股份有限公司
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