Study On Earthquake Resistance Performance Of The Ceramsite Concrete Short Pier Shear Wall

The ceramsite concrete which may reduce the structure dead weight effectively obtainsproperties such as high intensity, energy saving and environmental protection, good earthquakeresistance performance, fire protection and so on. It is a new type of concrete which has a greatfuture in the structure of the high-rise building. The short pier shear wall comes by the generalshear wall. It is a new type of structure which has been developing independently these years inchina. The short pier shear wall which makes the large room and flexible room layout may replacethe unsightly structural member such as the column, beam and so on. It is suitable for theresidential building and easy to satisfy each kind of building plane request. Moreover, it has thelighter weight, the fewer material and smaller earthquake function contrast to the general shear wall.In recent years, the massive scholars in china have conducted the research to the plain concreteshort shear wall structure performance. However, the research to the ceramsite concrete short piershear wall is few.In this paper, through the low cycle reciprocate loading test of two same parameter ceramsiteconcrete short pier shear wall under different axial compression ratios, their bearing capacity,stiffness degradation, hysteretic curve, ductility coefficient, energy dissipation capacity, destructioncharacter and so on have been compared to study its earthquake resistance performance. Theresults show that the axial compression ratio has an obvious effect on the earthquake resistanceperformance of the ceramsite concrete short pier shear wall. The earthquake resistanceperformance of the specimens with lower axial compression ratio is better. The model underdifferent axial compression ratios is established by the finite element software. It can be shown thatthe calculated results are in good agreement with the test through comparison. As the factor of theconcealed column longitudinal rebar ratios and the concrete intensity is not considered in the test,the model with different concealed column longitudinal rebar ratios or the different concreteintensity is established by the finite element software to study their effect on the earthquakeresistance performance.