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A new type of post-earthquake easy-to-repair steel special-shaped column-prestressed central support frame

A steel special-shaped column and center support technology is applied in the field of earthquake resistance and disaster reduction, which can solve the problem of not showing ductility, and achieve the effects of reducing construction waste, reducing residual deformation, and avoiding environmental pollution.

Active Publication Date: 2016-03-02
南通新丰威机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of joint form does not show proper ductility in earthquakes, but brittle fracture occurs prematurely, and the crack usually originates from the weld of beam-column joints

Method used

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  • A new type of post-earthquake easy-to-repair steel special-shaped column-prestressed central support frame
  • A new type of post-earthquake easy-to-repair steel special-shaped column-prestressed central support frame
  • A new type of post-earthquake easy-to-repair steel special-shaped column-prestressed central support frame

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Embodiment Construction

[0049] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0050] Such as Figure 1-24 As shown, the post-earthquake easy-to-repair steel special-shaped column-prestressed central support frame of the present invention includes double-channel steel beam 1, equal limb angle steel 2, beam-column connecting plate 3, beam end web 4, single channel steel 5, steel Cable 6, L-shaped special-shaped column 7, T-shaped special-shaped column 8, cross-shaped special-shaped column 9, cover plate 10, anti-buckling plate 11, reinforcement plate 12, shear plate 13, stiffener 14, fixed angle steel 15, connecting plate 16. Ear plate I17, ear plate II18, prestressed cable 19.

[0051] as attached figure 1 As shown, the beam involved in the present invention is a double-channel steel beam 1 made of section steel, and the double-channel steel beam 1 is formed by splicing channel steel with a beam end web 4 at the beam end.

[0052] as attache...

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Abstract

The invention discloses a special-shaped steel column-prestress central supporting frame easy to restore after an earthquake. The special-shaped steel column-prestress central supporting frame easy to restore after the earthquake is characterized in that a double-groove steel beam is connected with a special-shaped column through a beam-end sealing plate, so that a welding-line-free full-bolt connecting form is formed; a prestress steel cable is applied to a welding-line-free full-bolt joint, so that a prestress self-reset joint is formed; a self-reset column base and a prestress column base are used for optimizing the axial mechanical performance and the horizontal mechanical performance of the bottom of the column through a reinforcing plate, a bend-preventing steel plate is mainly used for dissipating energy of the earthquake, and a shear plate is used for preventing local deformation, caused by excessive shearing force, of the bottom of the column; the key component of the prestress column base is a prestress pull rod, the pull rod is used for providing precompression for the column so that the column can be tightly connected with the beam, as a result, approximate rigid connection can be achieved when the prestress column base bears small bending moment, and the self-reset capacity of the prestress column base after the earthquake is achieved; better lateral resistance of the structure is achieved through prestress central supporting.

Description

technical field [0001] The invention relates to an easily repairable steel special-shaped column-prestressed central support frame, which belongs to the technical field of earthquake resistance and disaster reduction, in particular to an easy-to-repair steel special-shaped column-prestressed central support frame after an earthquake. Background technique [0002] The collapse of buildings in earthquakes is the main reason that threatens people's lives and causes property losses. The earthquakes in Wenchuan and Ya’an showed that the seismic performance of concrete structures is not good. At present, my country’s steel structures are developing rapidly, especially the prestressed steel structure technology is at the international advanced level. The world record for the largest structural span leads the development of prestressed steel structures. Making full use of the advantages of prestressing technology and applying it to the steel frame joints will improve the seismic per...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/24E04B1/58E04B1/98
Inventor 王威高娇娇苏经宇马东辉桑兆龙杨夏
Owner 南通新丰威机械科技有限公司
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