Abstract
The composite shear wall is the core component of the thermal insulation integrated structure, which is a load-bearing shear wall with good thermal insulation, sound insulation, and seismic resistance. To improve the applicable height of the composite shear wall structure, a cohesive sandwich heat-insulation composite shear wall with door frame inclined tendon and diamond-shaped inclined tendon is proposed, and the quasistatic force of four 1/2-scale shear wall test specimens is carried out. Different specimens are analyzed, including failure modes, hysteresis curves, skeleton curves, stiffness degradation, ductility performance, and energy dissipation capacity. The following conclusions are drawn: the failure modes of the specimens are bending and shear failure; the ultimate strength and deformation performance of the composite wall close to the solid wall; the composite wall with the door frame inclined tendon can effectively delay the wall cracking and improve the bearing capacity and energy consumption capacity of the composite wall; the configuration of the diamond-shaped inclined tendon improves the ductility and energy dissipation capacity of the composite wall.
Highlights
It can be seen that W03 can effectively slow down the development of shear wall cracks, improve the comprehensive mechanical performance of shear wall, and improve the failure mode of composite wall, which is a good configuration form of inclined steel tendons
Introduction e composite wall is formed by two layers of wire mesh frame connected by horizontal inclined tendons, which are the thermal insulating material in the middle, and concrete is poured on both sides. e integration and thermal insulation of the building structure is realized, which has the advantages of extending the life of the thermal insulation layer, avoiding later maintenance work and reducing construction waste [1]. e researches on the existing composite shear wall at home and abroad show that the composite wall connected by inclined tendons has good working ability and its stress performance is close to or better than that of the ordinary solid shear wall [2,3,4,5,6]
It can be seen that W03 can effectively slow down the development of shear wall cracks, improve the comprehensive mechanical performance of shear wall, and improve the failure mode of composite wall, which is a good configuration form of inclined steel tendons. e configuration of diamond-shaped inclined tendons plays a certain role in limiting crack development
Summary
It can be seen that W03 can effectively slow down the development of shear wall cracks, improve the comprehensive mechanical performance of shear wall, and improve the failure mode of composite wall, which is a good configuration form of inclined steel tendons. Compared with W02, W03, and W04, after reaching the ultimate load, with the increasing displacement, W03 is more stable to maintain the horizontal force slowly decreased; the wall stress performance is more stable, the hysteresis loop is relatively full.
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