To study the bending capacity and seismic performance of partially encased steel-concrete composite shear walls,five short-leg shear walls were designed.The influence of the axial compression ratios,flange plate thickness,concrete and section steel strength on the failure modes,hysteretic performance,bending capacity,deformation capacity,stiffness degradation and energy dissipation capacity of the specimens were studied by quasi-static tests.The results show that the short-leg shear wall showed typical compression-bending failure.When the axial compression ratio increases from 0.4 to 0.6,the bearing capacity and ductility are all reduced.The change of flange plate thickness has little effect on the bearing capacity and ductility.With the increase of the strength of concrete and section steel,the bearing capacity of the specimen increases accordingly.Under rare earthquakes,the specimen shows good seismic performance.Caculation formulas for the bending capacity of the partially encased steel-concrete composite shear walls were suggested,and the calculation results agree well with the test results.
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