T-shaped fabricated anti-buckling support members

Abstract

The invention provides a T-shaped assembly type buckling-restrained brace member, which is suitable for axis pressure members of buildings and structures. The T-shaped assembly type buckling-restrained brace member is characterized by comprising a T-shaped assembly type buckling-restrained brace inner core and a buckling-restrained outer coating restraint member, wherein the T-shaped assembly type buckling-restrained brace inner core is arranged in the buckling-restrained outer coating restraint member by inner core double angle steels clamping a straight steel plate. The restraint of a core area is characterized in that a core area top restraint cover plate, core area flange restraint cushion strips and the leg backs of core area restraint angle steels are connected by bolts; the leg tips of the two core area restraint angle steels, and core area web restraint cushion strips between the two core area restraint angle steels are connected by bolts; the leg tips of two transition area restraint angle steels, the straight steel plate and the inner core double angle steels are connected by bolts; the leg backs of the two transition area restraint angle steels, the straight steel plate, the inner core double angle steels and a transition area top restraint cover plate are connected by bolts. The T-shaped assembly type buckling-restrained brace member has the advantages that the production and the construction are simple and convenient, the production cost is low, the production cycle is short, the property is stable, and the like.

Description

technical field [0001] The invention relates to an all-steel anti-buckling support member, in particular, a T-shaped assembled anti-buckling support member, which is mainly used for axial stress in buildings and structures that can dissipate earthquake energy and significantly improve the structure's anti-seismic performance member. Background technique [0002] Due to the outstanding advantages of light weight and easy processing, the all-steel anti-buckling brace has been widely used in engineering, and most of them use straight and cross-section steel as the inner core. Since the cross-shaped inner core section is not produced on the market, it needs to be welded by three steel plates. The core area of ​​the straight section inner core and the variable section of the transition area often also need to be welded. This processing method has the following disadvantages : [0003] (1) Initial geometric defects of the inner core [0004] The cross-shaped inner core will pro...

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Problems solved by technology

[0010] The present invention solves the problems of the existing concrete-filled steel tube restraint buckling-resistant braces, which are likely to cause displacement of special soft material plates, local damage of unbonded materials, and long production cycle during the construction process of concrete in the existing concrete-filled steel tube restrained buckling-resistant braces. Due to the high processing cost caused by welding and the inability to ensure its reliable low-cycle fatigue performance, a T-shaped assembled anti-buckling support member was proposed.

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