Axial-rib corrugated web steel-concrete composite coupling beam

Abstract

The invention provides an axial-rib corrugated web steel-concrete composite coupling beam which at least comprises a plurality of steel flanges, steel corrugated webs, high-damping concrete, butt welds and stiffening plates. According to the axial-rib corrugated web steel-concrete composite coupling beam, after the steel flanges and the corrugated steel webs are assembled in a factory into a coupling beam steel box, the high-damping concrete is poured on site with the coupling beam steel box as a formwork; the corrugated steel webs have large out-of-plane stiffness, and thus out-of-plane deformation of the composite coupling beam wrapped with a steel plate can be effectively restrained; the steel flanges and the steel corrugated webs are connected through the butt welds, and thus the connecting strength is ensured; the high-damping concrete is used, and thus the obvious advantages in the bearing capacity, energy dissipation capacity and stiffness are achieved; and compared with a flatweb composite coupling beam, the structure of the axial-rib corrugated web has the more excellent anti-seismic performance. The axial-rib corrugated web steel-concrete composite coupling beam is suitable for connecting of steel-concrete composite shear walls in a high-rise hybrid structure system; compared with a reinforced concrete connecting beam, the axial-rib corrugated web steel-concrete composite coupling beam can better meet the demands of the overall structure for deformation and energy dissipation of the connecting beam and has good construction convenience, and the engineering construction cost is saved while the construction progress is accelerated.

Description

technical field [0001] The invention relates to the technical field of super high-rise hybrid structures, belongs to the category of steel-concrete composite structures, and specifically relates to a steel-concrete composite connecting beam, which can match the outer-wrapped steel plate-concrete composite wall in terms of rigidity, bearing capacity and deformation capacity. Improve the mechanical performance of the combined shear wall and reduce the damage of the main structural components under the earthquake. Background technique [0002] In the high-rise composite structure system, the shear wall or the cylinder composed of the shear wall is the main lateral force-resisting member. With the development of society and economy, the function of buildings has been continuously improved, and the height of buildings has been continuously increased, so the performance of shear walls in high-rise structures has been put forward higher requirements. So the steel-concrete composit...

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Problems solved by technology

Among the existing coupling beam forms, the bearing capacity and deformation capacity of reinforced concrete coupling beams are low, and it is difficult to match with the wall pier; the structural form of the built-in steel plate-concrete coupling beam is quite different from that of the composite wall pier. It is difficult to realize the connection with the wall; the cost of the steel connecting beam is relatively high

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