Inner sleeve constraint folding steel plate energy dissipation support

Abstract

The invention discloses an inner sleeve constraint folding steel plate energy dissipation support. The energy dissipation support comprises a core cylinder, an inner sleeve arranged in the core cylinder, end load bearing plates arranged at cylinder openings in the two sides of the core cylinder, a crossed fixed plate arranged in the inner sleeve and connected with the inner sides of the end load bearing plates and a crossed gusset plate connected to the outer sides of the end load bearing plates. The core cylinder is formed by sequentially connecting multiple energy consumption units. Each energy consumption unit consists of 4n triangles with different surfaces. The energy dissipation support produces pre-folding traces through folding steel plates and can produce plastic hinge lines at the folding traces when bearing a load, and the energy consumption capacity of the support is enhanced through the plastic hinge lines; meanwhile, the sleeve is arranged in the core cylinder to improve annular constraint to the core cylinder, and therefore the rigidity and ultimate bearing capacity of the support can be improved conveniently.

Description

technical field [0001] The invention belongs to the field of building structure energy-dissipating supports, and relates to an energy-dissipating support of folded steel plates constrained by inner casings. Background technique [0002] An earthquake is a strong natural disaster, and the energy released during an earthquake can cause fatal damage to buildings. In order to absorb the energy released during an earthquake to protect buildings, avoid damage to buildings caused by excessive energy input, and protect people's lives and property, buckling restraint support devices are widely used. [0003] The buckling restrained brace is mainly composed of core plate, outer casing, unbonded material and other parts. In this technology, the core plate is the main force-bearing unit, and the core plate deforms under the action of an earthquake to consume the energy input by the earthquake, so as to achieve the purpose of protecting the main frame. The inner casing prevents the lat...

AI Technical Summary

Problems solved by technology

[0004] However, there are few plastic hinges in the current buckling-constrained energy-dissipating supports, which cannot exert the energy-dissipating capacity of the entire core plate, cannot control the yield point position of the core plate, and cannot control the number of plastic hinges, which makes the energy consumption of the entire support The performance cannot be precisely controlled to achieve the desired effect

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