Buckling restrained energy-consuming support structure restrained by adopting GFRP angle steel

Abstract

The invention belongs to the technical field of shock absorption and wind resistance of civil engineering and provides a buckling restrained energy-consuming support structure restrained by adopting GFRP angle steel. The buckling restrained energy-consuming support structure takes a core plate with narrow middle and two wide ends as a mainbody structure, and two stiffening ribs are respectively symmetrically arranged at the widened areas of two ends of the core plate, so as to form a structure with crossed end part; the extending parts of two ends of the core plate are crossed mounting gusset plates, bolts holes are formed in the mounting gusset plates, and the support structure is connected with a frame structure by GFRP high-strength bolts and the mounting gusset plates; and four GFRP angle steels are respectively arranged at the periphery of the core plate to form a cross shape and then are fixed together by using the GFRP high-strength bolts and the core plate. The GFRP angle steel is adopted at the restraint part which is light in self weight and high in strength, namely generally said light mass and high strength. In addition, the support structure is good in corrosion resistance and fatigue resistance, and can be used for a long time in acid, alkali, chloride and damp environments, and therefore, the service life of the structure can be prolonged.

Description

technical field [0001] The invention belongs to the technical field of shock absorption and wind resistance of civil engineering structures, and relates to a buckling-resistant energy-consuming support structure constrained by GFRP angle steel. Background technique [0002] In the design process of modern building structures, the seismic performance of building structures must be considered, especially those located in high-earthquake areas. In addition to the need to prevent earthquake damage, the design of many building structures also needs to consider their wind resistance. [0003] Compared with the traditional anti-seismic structural system, the energy-dissipating and shock-absorbing structural system is superior in terms of safety, economy and technical rationality. The basic principle of traditional seismic structures is to resist earthquakes by enhancing the seismic performance (strength, stiffness) of the structure itself, that is, relying on the damage of the str...

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Problems solved by technology

[0007] The purpose of the present invention is to solve the following two problems in the existing anti-buckling supports: (1) the existing grouting type and pure steel anti-buckling supports have the problems of self-heavyness and difficulty in installation; The anti-buckling support has the problem of causing damage to the constrained parts, and once the welding is completed, the constrained parts are not easy to separate, and the constrained parts will be damaged when they are separated.

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