Research on the Stiffness Optimization of the Reinforced Concrete's Shear Wall Structure Based on the Earthquake Response Spectrum

摘要

Optimization design is the significant development in the structure design which could adopt the better from several plans in the same task. This paper build the finite element model of sixteen-floors shear wall structures, which control the deformation as the restraint condition, to make the thickness of shear wall as the design variable and to take the light structure as the objective function in order to execute the optimization. After the optimization, the bottom and internal stress become higher, whereas the centralized stress will occur in the corner and the middle of the rooftop and the opening of the shear wall. The horizontal earthquake of the various floors presents the curve like S with the increasing of the floors. And the floor which occur earthquake effect and the biggest displacement angle is in the middle of the structure and the whip tip effect will emerge in the top of the structure.