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Assembly prestress center support system for steel structure

A central support system and prefabricated technology, which is applied in the direction of building structure and construction, can solve problems such as brittle failure of rigid beam-column joints, and achieve the effects of reducing construction period, increasing construction speed, and reducing project cost

Inactive Publication Date: 2013-07-10
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the earthquake experience shows that the rigid beam-column joints of buildings have different degrees of brittle failure.

Method used

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  • Assembly prestress center support system for steel structure
  • Assembly prestress center support system for steel structure
  • Assembly prestress center support system for steel structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0066] The present invention is described in detail below in conjunction with accompanying drawing:

[0067] as attached figure 1 As shown, the splicing position of the assembled truss plate of the present invention is set in the middle of the main girder, where the shear force and bending moment are relatively small. From the perspective of structural mechanics, the setting of the splicing position is reasonable.

[0068] as attached figure 2 As shown, in the prestressed central support system of the prefabricated steel structure of the present invention, the involved beams are truss beams composed of angle steel splicing, including upper and lower chords I (1) and webs I (2), wherein the upper and lower chords Rod I (1) and web I (2) are both made of angle steel, and are divided into single-angle steel beams and double-angle steel beams. The single-angle steel beams are provided with connecting holes at regular intervals, which is convenient for bolts to be used when splicin...

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Abstract

The invention discloses an assembly prestress center support system for a steel structure and belongs to the technical field of structural engineering. The assembly prestress center support system comprises assembly truss plates, assembly columns and prestress center support members. The assembly truss plates comprise lattice truss girders and floor plates, and the lattice truss girders are equipped with angle steel web members. The assembly truss plates are prefabricated in factories and spliced with girder column nodes of the assembly columns through beam-end sealing plates at construction sites. The prestress center support members serve as lateral load resistant members to be connected with truss girders of the assembly truss plates and the bottoms or tops of the assembly columns. The assembly truss plates, the assembly columns and the prestress center support members are prefabricated in factories and assembled at construction sites through bolts.

Description

technical field [0001] The invention relates to an assembled steel structure prestressed central support system, which belongs to the technical field of structural engineering. Background technique [0002] my country's annual urban and rural housing area is 2 billion square meters, of which more than 80% are high-energy buildings, and the energy consumption per unit building area in my country is more than twice that of developed countries. According to the statistics of the China Iron and Steel Association, in 2011, my country's steel output exceeded 700 million tons, ranking first in the world's steel output for 16 consecutive years. Our country is less than 4%. As the country with the largest construction scale and steel output in the world, China lags behind seriously in the development of steel structures for houses (including residences). [0003] At present, the systematic research on high-rise steel structure residences at home and abroad is in its infancy, and the...

Claims

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Application Information

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IPC IPC(8): E04B1/19
Inventor 张爱林赵越刘学春徐阿新马靖曹明
Owner BEIJING UNIV OF TECH
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