Roof with rectangular plane, super-long span and prestressed space tube truss structure and manufacturing method

A tube truss, rectangular technology, applied in the field of super-span prestressed steel structure roof, to achieve the effect of low space height, length reduction, and steel consumption

Inactive Publication Date: 2011-01-12
GUIZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when used in super-long-span building structures, these two technical solutions still have the disadvantages similar to the general space tube truss structure

Method used

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  • Roof with rectangular plane, super-long span and prestressed space tube truss structure and manufacturing method
  • Roof with rectangular plane, super-long span and prestressed space tube truss structure and manufacturing method
  • Roof with rectangular plane, super-long span and prestressed space tube truss structure and manufacturing method

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Embodiment Construction

[0025] Embodiment of the present invention: make roof plane be the rectangle plane of rectangle and its long side L 1 with short side L 2 The ratio is L 1 / L 2 ≥1.5 and L 2 is the span of the roof and is 90 meters ≤ L 2 When the roof is less than or equal to 150 meters, a rectangular plane super-large-span prestressed space tube truss roof manufacturing method of the present invention is used to make it, that is, the super-large-span support strut type cable-stayed self-balancing space tube truss is used as the roof. The super-large-span support rod-type cable-stayed self-balancing space tube truss is based on the structure of the conventional shuttle-shaped space tube truss, and is set on the supports at both ends of each shuttle-shaped space tube truss. Based on the support rods supporting the steel cables, the structural height h in the center of the shuttle-shaped space tube truss is made as L 2 / 18≤h≤L 2 / 16, and (1 / 4~1 / 3)L from the center line of the support at bot...

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Abstract

The invention discloses a roof with rectangular plane, super-long span and prestressed space tube truss structure and a manufacturing method. In the invention, the structures of the conventional shuttle shape space tube trusses are taken as the basic frames; support bars for supporting steel cables are respectively fixed at the two ends of each shuttle shape space tube truss; the structure height in the center of each shuttle shape space tube truss is set to be 1/18-1/16 of the span length of the shuttle shape space tube truss; two steel cable turning supports are symmetrically fixed on the shuttle shape space tube truss, close to a lower chord of the shuttle shape space tube truss; the steel cables are respectively supported on the two support bars after passing through the two steel cable turning supports, so that the steel cables between the support bars and the steel cable turning supports are formed into oblique-pulling steel cables and prestressed steel cables with tension, thus ensuring the two steel cable turning support points to generate two elastic reacting forces which act down and up and are opposite to the load action directions so as to compensate insufficient rigidity caused by reduction of the structure height. The invention is suitable for the roof with the ratio of building long side to short side (L1/L2) being not less than1.5 and span length L2 being not less than 90m and not more than 150m. The invention has the characteristics of low structure height, smaller internal force, less steel consumption, low engineering cost, etc.

Description

technical field [0001] The invention relates to a rectangular plane super-long-span prestressed space pipe truss roof and a manufacturing method thereof, and belongs to the technical field of super-long-span prestressed steel structure roofs with a span greater than or equal to 90 meters and less than or equal to 150 meters. Background technique [0002] With economic construction and social development, the steel structure roofs of large public buildings such as convention and exhibition centers, high-speed railway waiting halls, terminal buildings and aircraft hangars in industrial buildings, and dry coal sheds in thermal power plants require span requirements. It is getting bigger and bigger. The span of the steel grid structure (grid frame and reticulated shell) is equal to 60 meters. It is a large span. When the span exceeds this limit and reaches a span of 90 meters to 150 meters, it is a super large span. For the span of 60 meters For the buildings of left and right s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/11E04C3/10E04B1/36
Inventor 马克俭周观根卢亚琴张华刚何挺肖建春李莉洪芳刘飞田子东
Owner GUIZHOU UNIV
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