Novel post-earthquake easy-to-repair steel irregular column framework

A technology of steel special-shaped columns and special-shaped columns, which is applied in the direction of earthquake resistance, building components, building structures, etc., can solve the problems of not showing ductility, etc., and achieve the effects of reducing construction waste, ensuring construction quality, and efficient recycling

Inactive Publication Date: 2014-04-02
BEIJING UNIV OF TECH
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  • Summary
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  • 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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  • Novel post-earthquake easy-to-repair steel irregular column framework
  • Novel post-earthquake easy-to-repair steel irregular column framework
  • Novel post-earthquake easy-to-repair steel irregular column framework

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Experimental program
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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings.

[0038] like figure 1 Shown is a schematic diagram of splitting of prestressed self-resetting nodes, figure 2 It is a schematic diagram of an L-shaped special-shaped column, image 3 It is a schematic diagram of a T-shaped special-shaped column, Figure 4 It is a schematic diagram of a cross-shaped special-shaped column, Figure 5 It is a schematic diagram of dismantling the self-resetting column feet. The new type of post-earthquake easy-to-repair steel special-shaped column frame includes double-channel steel beams 1, equal-leg angle steel 2, beam-column connecting plates 3, beam end webs 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 and prestress Ti...

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Abstract

Provided is a novel post-earthquake easy-to-repair steel irregular column framework. Double-channel steel beams of the framework are connected with irregular columns through beam end sealing plates to form a welding-gap-free full-bolt connection mode. Prestress steel cables are applied to welding-gap-free full-bolt nodes to form prestress self-resetting nodes. Axial and horizontal stress performance of the bottoms of the columns are optimized through reinforcing plates by self-resetting column legs and prestress column legs, bending-proof steel plates are mainly used for dissipating earthquake energy, and shearing plates are used for preventing shearing force from being too large and leading to local bending of the bottoms of the columns. Key members of the prestress column legs are prestress pull rods which are used for providing prestress for the columns to enable the columns to be closely connected with the beams, the column legs can be in rigid connection similarly when the torque borne by the column legs is small, and a post-earthquake self-resetting capability is achieved.

Description

technical field [0001] The invention relates to an easily repairable steel special-shaped column frame, which belongs to the technical field of earthquake resistance and disaster reduction, in particular to a novel post-earthquake easily repairable steel special-shaped column frame. 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 technology of prestressed steel structures is at the international advanced level. The world record for the largest span of similar structures leads the development of prestressed steel structures. Making full use of the advantages of prestressing technology and applying it to steel frame joints will improve the seismic performance and self-resetting ability of jo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04B1/58E04B1/19
Inventor 高娇娇王威苏经宇李波刘晓然侯亚坤
Owner BEIJING UNIV OF TECH
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