| Due to population growth and land loss,building energy-saving and land-saving residential has become a goal pursued by the construction industry.In this paper,a new type of composite concrete shear wall structure system is proposed based on the composite concrete wall slab in Germany.The seismic performance of the composite shear wall panels is studied by low-cycle repeated tests,and the theoretical analysis is carried out to observe the similarities and differences between the composite shear wall panels with one side and the traditional composite shear wall panels with two sides and the cast-in-place shear wall panels.The load-displacement curves and skeleton curves of the specimens are studied by low-cycle repeated loading tests.The failure modes are analyzed by crack distribution.The seismic performance of the structure is analyzed by ductility coefficient and power ratio index.The details of this study are as follows:1.The experimental study on the single-sided composite shear wall panel model is carried out to analyze whether the failure characteristics of single-sided composite shear wall panel,traditional double-sided composite shear wall panel and cast-in-situ shear wall panel are different,and to observe whether the crack distribution trend is the same.To understand the overall performance of single-sided composite structure,the characteristics of bond failure at joints and overlapping surfaces,and the differences between doublesided composite shear wall panels and cast-in-situ shear wall panels.2.The bearing capacity,ductility,deformation capacity and energy dissipation capacity of single-sided composite shear wall panels are studied by testing the load-strain relationship curve and load-one-displacement hysteresis curve of the panels.3.Theoretical analysis of the seismic performance of the specimens,analysis of the specimens under load under the theoretical bearing capacity,failure mode and actual bearing capacity,failure mode of the coincidence. |
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