Fiberglass-reinforced plastics (FRP) section bar buckling-resisting supporting structure

Abstract

The invention belongs to the technical field of civil engineering structural damping, and particularly relates to a fiberglass-reinforced plastic (FRP) section bar buckling-resisting supporting structure of rapid industrialization production. A core energy-consumption element is a line-type steel plate, and sectional faces of two end portions of the core energy-consumption element are expanded in the width direction. A steel plate is perpendicularly welded with the two end portions of the line-type steel plate to form a cross-shaped structure which can be connected with a structural member conveniently. Two FRP hollow ribbed bars are respectively clamped at two sides of the line-type steel plate, FRP cloth materials are wound on the outer rings of the FRP hollow ribbed bars, and multi-hole foam materials are filled between the line-type steel plate, the FRP hollow ribbed bars and the FRP cloth materials. Connecting structures used for being connected with structures are arranged on two ends of the line-type steel plate and the steel plate. The FRP section bar buckling-resisting supporting structure achieves energy consumption by utilizing rolled steel good in plastic deforming capability, especially mild steel, and achieves hysteretic energy consumption by utilizing axial deformation of the rolled steel. The FRP section bar buckling-resisting supporting structure is novel and reasonable in structure, easy to process, convenient and flexible to use, strong in adaptability, capable of effectively improving seismic performance of building structures, and wide in marketing popularization and application prospect.

Description

technical field [0001] The invention belongs to the technical field of shock absorption of civil engineering structures, and in particular relates to an anti-buckling support structure of FRP profiles produced in rapid industrialization. Background technique [0002] Frame structures include reinforced concrete frame structures and steel frame structures, which are the most commonly used structural forms in the world today. They have significant advantages such as strong designability, light weight, and good economy. However, when encountering lateral effects such as earthquakes, It is prone to the phenomenon that the interlayer displacement is too large, which will affect the later use or even be damaged and collapsed due to insufficient strength. In order to make the building structure have a strong ability to resist external damage such as earthquakes, it is often necessary to add energy-dissipating components to the frame structure. [0003] Common energy-dissipating co...

AI Technical Summary

Problems solved by technology

The anti-buckling brace in the form of concrete filled steel pipe has better restraint effects, but it has disadvantages such as slow construction and high self-weight. The reinforced concrete anti-buckling brace has problems such as a decrease in stiffness due to concrete cracking and a large self-weight. Pure steel anti-buckling Although the support is light in weight, there are economic problems

The shortcomings of the above buckling-resistant braces limit the popularization and application of buckling-resistant braces to some extent

Images