Large-deformation energy-dissipation restorable easy-to-repair outrigger truss system

Abstract

The invention discloses a large-deformation energy-dissipation restorable easy-to-repair outrigger truss system. The outrigger truss system comprises a shear wall, a framework column, an outrigger truss and two auto-restoration energy-dissipation type supporting sections, wherein the outrigger truss is arranged between the shear wall and the framework column. The outrigger truss comprises an upperchord member and a lower chord member, the lower chord member and the upper chord member are parallel to each other and spaced, and the lower chord member is located under the upper chord member; theupper ends of the auto-restoration energy-dissipation type supporting sections are arranged towards each other and connected with the upper chord member, and the lower ends of the two auto-restoration energy-dissipation type supporting sections are away from each other and are connected with the lower chord member. The upper chord member and the lower chord member are chords and each comprises aplurality of sections. The outrigger truss system further comprises buckling-restrained section weakening energy dissipation connection sections which are connected between the two horizontally adjacent sections of the chord members. The large-deformation energy-dissipation restorable easy-to-repair outrigger truss system has sufficient ductile deformation capacity and residual deformation controlcapacity, post-earthquake restoration is easy, and the functional restorability of the structure can be improved.

Description

technical field [0001] The invention relates to the technical field of construction, and more specifically, to a large-deformation energy-consuming repositionable and easy-to-repair outrigger truss system. Background technique [0002] In the energy-dissipating outrigger truss in the related art, under the action of earthquake, the web members will produce a large irreversible residual deformation after sufficient energy dissipation, which will lead to a large residual deformation of the overall structure, which cannot meet the requirements of super high-rise structures. The function can be restored; under the earthquake, the chord is subjected to the coupling effect of compression-bending-shear, and the weakened section will buckle and lose stability, which seriously affects the deformation capacity of the chord, so that the web cannot fully exert its energy dissipation capacity. In addition, after the buckling of the weakened section, the outrigger truss will produce resid...

AI Technical Summary

Problems solved by technology

[0002] For energy-dissipating outrigger trusses in the related art, under earthquake action, the web members will produce large irreversible residual deformation after sufficient energy dissipation, which will lead to large residual deformation of the overall structure, which cannot meet the requirements of super high-rise structures. The function can be restored; under the action of an earthquake, the chord is subjected to the coupling effect of compression-bending-shear, and the weakened section will buckle and become unstable, which seriously affects the deformation capacity of the chord, so that the web cannot fully exert its energy dissipation capacity

Images