Assembly type steel-wood buckling restrained brace with vertically embedded FRP reinforcement

Abstract

The invention discloses an assembly type steel-wood buckling restrained brace with vertically embedded FRP reinforcement, including a core material, a peripheral restraint, an unbonded material or an air layer, wherein the core material includes connecting sections, transition sections, a core work section, a stop clamp and a reinforcing plate, two ends of the core work section are connected with the connecting section by the transition sections, the stop clamp is arranged at the middle of the core work section, the transition sections are arc-shaped, connection bolt holes are formed in the connecting sections, the peripheral restraint includes two pieces of core material up-down laminated wood and two pieces of core material dual-side laminated wood, the two pieces of core material up-down laminated wood are transverse in wood grain direction and the two pieces of core material dual-side laminated wood are transverse in wood grain direction, and a vertically embedded carbon fiber plate is arranged between the core material up-down laminated wood and the core material dual-side laminated wood. The assembly type steel-wood buckling restrained brace with vertically embedded FRP reinforcement can be used in earthquake regions, and is convenient to repair after the earthquake and reduce earthquake damages. The assembly type steel-wood buckling restrained brace with vertically embedded FRP reinforcement has wide application prospect in middle-high wood structure buildings.

Description

technical field [0001] The invention belongs to the field of civil engineering and relates to a buckling constrained support for reducing the impact of earthquake disasters on engineering structures. Background technique [0002] In the field of middle and high-rise wooden structure building design, there is a big gap between my country and developed countries such as Europe and the United States. Therefore, it is necessary to carry out relevant research in the field of mid-rise timber structure design. The frame-bracing structure system of timber structures is one of the lateral force-resisting systems of mid-rise timber structures, and the development of new energy-dissipating braces is a key technical issue in the practical application of the above problems. Research on new energy-dissipating supports can promote the application of modern wood structures in mid- and high-rise building construction, and ensure their safety and stability during use. [0003] At present, m...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the buckling-restrained braces commonly used in engineering in my country are composed of peripheral filled concrete steel pipe restraint components and core components under axial force. This kind of buckling-restrained brace is not only self-heavy, but also takes a long time for concrete pouring and curing, which will seriously affect buckling Production efficiency of constrained supports

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