Multi-yield point fracture-free buckling-proof brace and method

Abstract

The invention relates to a multi-yield point fracture-free buckling-proof brace and a bracing method. The brace comprises a primary yielding unit, a secondary yielding unit and a fracture-free unit, wherein the primary yielding unit and the secondary yielding unit respectively adopt two different yielding mechanisms to work in parallel; the secondary yielding unit in the buckling-proof brace is formed by yielding, clamping and restraining a web plate; in the primary yielding unit, a lead block is arranged between a joist steel wing edge and clamped steel pipes; and in the fracture-free unit, a plurality of groove-shaped bolt holes are formed on the clamped steel pipes on the two sides of joist steel. The brace has a simple structure, stable performance, low cost and a plurality of yielding points, is convenient to machine, is free of maintenance, can play a role in consuming energy under a low earthquake, can stably work under a strong earthquake, has a fracture-proof measurement under a super-strong earthquake at the same time, can relatively obviously reduce the damage of the earthquake, and can be widely applied to the reinforcement of a new building structure or an existing building so as to fulfill the aim of resisting earthquake and wind, improving the structural rigidity and controlling lateral migration.

Description

technical field [0001] The invention relates to a building component, in particular to a multi-yield point non-fracture anti-buckling support and a method thereof. Background technique [0002] Building structures in earthquake areas must consider the anti-seismic structure. In the prior art, the frame-supported structure has been widely used due to its flexible architectural function layout and good seismic performance. However, due to the steel support in the frame-supported structure system Buckling will occur, so it is often necessary to increase the section of the support to meet the design requirements, which will waste more materials and increase the seismic response, thereby reducing its economy. Even so, it is still not guaranteed to avoid In case of buckling, the use of buckling-resistant braces instead of ordinary steel braces in the frame support system can reduce structural stiffness and avoid support instability under large earthquakes. Therefore, buckling-resi...

AI Technical Summary

Problems solved by technology

[0007] 1. Most of the common anti-buckling braces in the prior art cannot work during small earthquakes

[0008] 2. Sudden loss of bearing capacity and stiffness is prone to occur during large or super earthquakes

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