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Manufacturing, installation and pre-deformation method for large-span spatial special-shaped steel structure

A pre-deformed, special-shaped steel technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as difficulty and installation accuracy, and achieve easy installation, ensure structural safety, and reduce initial defects. Effect

Active Publication Date: 2014-07-23
ZHEJIANG JINGGONG STEEL BUILDING GRP
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

In the past, most of the pre-deformation of steel structures was adjusted through the setting position of the tire frame assembled on the construction site. This method generally only considers one-dimensional linear arching, and it is realized by elongating or shortening the components during fabrication. The adjustment of pre-deformation in three directions of the structure is extremely difficult to implement on site
Therefore, this method is limited by the construction technical ability of the site, and the installation accuracy is difficult to guarantee

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] A preferred example of the present invention is a large-scale commercial complex sky curtain steel structure, its structural system is a space single-layer reticulated shell structure, the architectural shape is relatively irregular, and its shape resembles a fish. The lengthwise dimension is 174m, and the widthwise dimension is 78m. The highest point of the reticulated shell is 27.2m above the outdoor floor level. The whole structure is composed of two parts: the vertical support member and the roof reticulated shell. The cross-section of the members used are round tubes, and the material of all members is Q345B. The project adopts the method of erecting a full house of scaffolding for construction.

[0021] The specific steps of the pre-deformation of the canopy steel structure of the large commercial complex are as follows:

[0022] In the first step, a preliminary calculation model is formed using the node coordinates and member specifications provided by the steel...

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Abstract

The invention belongs to the technical field of construction of steel structures, and particularly relates to a manufacturing, installation and pre-deformation method for a large-span spatial special-shaped steel structure. The manufacturing, installation and pre-deformation method particularly comprises the following steps that a calculation model is built; pre-deformation load conditions are determined; three-dimensional deformation values of all nodes are obtained; a three-dimensional model after first-time pre-deformation is built; deformation difference values of the nodes are extracted, and comparison and analysis are conducted; according to the range of the difference values, a pre-deformation adjustment value is further determined; finally, the structure is installed. The manufacturing, installation and pre-deformation method is simple, convenient to implement and effective for manufacturing and installation of the spatial special-shaped steel structure, so that the appearance of the spatial special-shaped steel structure is the same as an initial target appearance set by the design is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of building steel structures, and in particular relates to a pre-deformation method for manufacturing and installing a special-shaped steel structure with a large span in space. Background technique [0002] In recent years, with the advancement of science and technology and the development of local economy, in order to cater to the atmosphere and development trend of local regional culture, there are more and more space-shaped buildings. Due to its unique appearance, lightness and beauty, the special-shaped steel structure in space often becomes a local landmark building, which improves the grade of the city and drives the local economic development and cultural prosperity. Not only that, the spatial long-span steel structure is different from the previous traditional structural forms. Because the strength-to-weight ratio of steel has obvious advantages compared with other materials, its vertical support sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 陈君邢遵胜刘中华王留成贾尚瑞茹兴良邹航周国军叶翔豆德胜
Owner ZHEJIANG JINGGONG STEEL BUILDING GRP
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