All-steel buckling-preventing energy-consuming brace

Abstract

The invention relates to an all-steel buckling-preventing energy-consuming brace, which belongs to the technical field of structural engineering. The brace is characterized in that the buckling-preventing energy-consuming brace consists of four hot-rolled groove-shape section steels and a kernel linear steel plate; the four hot-rolled groove-shape section steels are connected through high-strength bolts to form a peripheral constraint component capable of forming a constraint mechanism to the kernel linear steel plate; and a certain gap is reserved between the kernel steel plate and the peripheral constraint component and is coated with unbonded material so as to guarantee the smooth slippage between the two and play a role in anticorrosive protection. The all-steel buckling-preventing energy-consuming brace provided by the invention can provide good effect of resisting lateral force for a plurality of high-rise steel structures, and can achieve total cross-section yielding under the action of large earthquakes so as to effectively consume energy. In addition, as the buckling-preventing energy-consuming brace is an all-assembled component, the brace has the advantages that the brace is easy to machine and install, capable of effectively reducing structural construction cost and excellent in performance.

Description

technical field [0001] The invention relates to a novel anti-buckling energy dissipation support of an all-steel structure, which belongs to the technical field of structural engineering. technical background [0002] As a new type of lateral force-resisting member of multi-story steel structures, buckling-resistant energy-dissipating braces are widely used in new structures and old houses after the Hanshin Earthquake in Japan and the Northridge Earthquake in the United States. The biggest advantage of anti-buckling energy-dissipating braces is that they serve as both lateral force-resistant members and energy-dissipating dual functions. Compared with existing steel frames, cross braces or eccentric braces cannot effectively dissipate energy after buckling under pressure. It is the product of research on anti-lateral force system and scientific and technological progress. [0003] Under the action of small, medium and large earthquakes, the anti-buckling energy-dissipating ...

AI Technical Summary

Problems solved by technology

[0004] However, the anti-buckling energy-dissipating support members commonly used in engineering at present are composed of peripheral steel pipes, built-in concrete and inner steel plates. The disadvantages are high dimensional accuracy control and high manufacturing costs.

In particular, there must be a certain gap between the built-in concrete and the inner core steel plate. The precision control of the gap is very strict when pouring concrete, which makes the construction extremely difficult.

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