Bracing steel sleeve flection restriction support component

Abstract

The invention relates to an improved flection-restraining support member which includes: a core part, an inner sleeve part, an outer sleeve; wherein, the core part consists of a core board and a ribbed stiffener for the core board; the inner sleeve part consists of an inner sleeve wallboard, an inner sleeve ribbed stiffener and a core board restraining board, the outermost layer is the outer sleeve; no clearance is left between the core board restraining board and the core board. The invention also provides a method for manufacturing the improved flection-restraining support member. The flection-restraining support has good returning-delaying characteristics and energy-consuming performance and is an effective energy-consuming member, which can reach 1/70 deformation amount, meet the 1/50 floor displacement distortion requirement of building under rarely-happen earthquake and can greatly improve the earthquake resistance of the building structure; furthermore, the material and manufacture are all realized in China, which greatly reduces the cost of the support and lays a foundation for generalization and application.

Description

technical field [0001] The invention belongs to the field of construction, and in particular relates to a buckling constrained support member. Background technique [0002] In recent years, due to the advantages of no buckling under axial pressure, equivalent tensile and compressive bearing capacity, full hysteresis curve, good energy dissipation capacity and low cycle fatigue performance, buckling-restrained braces have been widely used in the United States, Japan, It is very popular in high-rise buildings in Taiwan and other regions of my country. After the Northridge earthquake in 1994, the United States began to conduct research on buckling-constrained braced steel structure systems. In 2000, the first building in the United States that used buckling-constrained braces as a lateral force-resistant member was built. The buckling-constrained braces that have been built or are currently being built use buckling-constrained braces. There are more than 30 structures in Japan;...

AI Technical Summary

Problems solved by technology

[0003]The core materials of the buckling-restrained support structures used in the United States and Japan are all made of low-yield steel, which requires batches of high-quality low-yield point steel, which requires high technical requirements. Q235 and its The above carbon steel and low alloy steel with higher strength, and Q195 steel are not applicable

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