摘 要 21世纪人们的生活水准不断提高和科学技术日新月异促使住房质量飞跃式的提升,促使新材料和新工艺不断涌现，出现许多新型结构，如型钢混凝土短肢剪力墙，其广泛应用于高层住宅中。在国内对十字形截面型钢混凝土短肢剪力墙受力性能的研究少之又少，因此研究十字形短肢剪力墙的受力性能和抗震性能对指导工程实践及充实理论具有重要的意义。 本文利用大型通用软件ANSYS对十字形型钢混凝土短肢剪力墙采用实体建模的方法进行有限元非线性分析，考虑混凝土强度等级、轴压比、墙肢长宽比和型钢配钢率对构件受力性能的影响，建立了13个有限元模型试件，系统分析了型钢混凝土十字形截面短肢剪力墙在循环荷载作用下的滞回性能、骨架曲线、刚度退化特征、型钢和混凝土的应力分布等。阐述了结构在循环荷载作用下，型钢混凝土十字形截面短肢剪力墙的承载能力、变形能力和耗能能力的变化规律、结构的破坏机理等。研究结果表明：混凝土强度等级对结构的受力性能影响很大，混凝土强度等级越高，结构的承载力越大，单调荷载作用下混凝土强度为C40时试件延性最好。循环荷载作用下，混凝土强度为C40时试件耗能能力最大，故建议混凝土强度一般宜选用C40左右；型钢混凝土十字形短肢剪力墙随着墙肢截面长宽比的增大其承载能力和延性呈现先增后减的趋势。循环荷载作用下，截面长宽比较小的构件其滞回性能较差，故建议该比值取值范围为6-7。不同轴压比的型钢混凝土剪力墙在单调荷载作用下压比型钢受力性能较为相似，但循环荷载作用下，轴压比为0.05和0.7的试件滞回性能较差，建议轴压比取值范围为0.25-0.5之间；型钢配钢率较小的构件其滞回性能优于配钢率较大的构件，但承载力相对有所减小,因此选定型钢配钢率时应综合考虑结构滞回性能和承载力。 本文通过对型钢混凝土十字形短肢剪力墙在低周反复荷载作用下受力性能的分析，揭示了在地震作用下型钢混凝土十字形短肢剪力墙的抗震性能及工作性能，得出了对型钢混凝土短肢剪力墙的理论研究具有参考价值的结论。

ABSTRACT In the 21st century, people's living standards continue to improve science and technology changes with each passing day lead to an leap improvement in housing quality ,Prompted new materials and new technology constantly emerging, appeared many new structures, such as steel reinforced concrete short shear wall, which is widely used in high-rise residential.In the domestic cross section steel reinforced concrete short shear wall stress performance study of rare, so the cross short limb shear wall seismic performance and mechanical and enrich the theory to guide the engineering practice has the vital significance. This paper, by using the large general software ANSYS cross-shaped steel reinforced concrete short shear wall adopted entity modeling method for nonlinear finite element analysis,considering concrete strength grade, axial compression ratio, wall limb length-width ratio and section steel ratio on the properties of component force influence,finite element model is established for 13 specimens, the system analysis of the steel reinforced concrete cross-shaped section of short limb shear wall under cyclic loading is hysteretic performance, skeleton curve, stiffness degradation characteristics and the stress distribution of steel and concrete, etc.This paper expounds the structure under the effect of cyclic loading, the steel reinforced concrete cross-shaped section of short shear wall bearing capacity, deformation capacity and energy dissipation capacity, the change rule of structural damage mechanism, etc.The results show that the great influence on the mechanical properties of structure concrete strength grade, the higher the concrete strength grade, the bearing capacity of the structure, the greater the strength of concrete under monotonic loading for C40 specimen ductility is best.Under cyclic loading, the strength of C40 concrete specimens energy dissipation, the biggest reason suggests about general appropriate chooses C40 concrete strength;Pattern of steel reinforced concrete short shear wall with wall limb section increase its bearing capacity and ductility of the aspect ratio showed a trend of increase after decreases first.Under cyclic loading, the cross section width smaller components the hysteretic performance is poorer, therefore suggested that the ratio value range is 6 to 7.different axial compression ratio of steel reinforced concrete shear walls in the monotonic load down than steel mechanical performance is relatively similar,but under cyclic loading, axial compression ratio of 0.05 and 0.7 specimen hysteretic performance is poorer, suggested that axial compression ratio values range between 0.25 0.5;Steel steel ratio smaller artifacts the hysteretic performance is superior to the steel ratio larger artifacts, but relatively less bearing capacity, so the selected steel structure steel ratio should be considered when hysteretic performance and bearing capacity. This article through to the pattern of steel reinforced concrete short shear wall under low reversed cyclic load bearing performance analysis,revealed in the earthquake under the action of steel reinforced concrete cross-shaped short limb shear wall seismic performance and working performance, obtained the theoretical research of steel reinforced concrete short shear wall has the reference value of the conclusion.