Study on the Seismic Performance of Shear Wall Structure with Unidirectional Wall Frames Based on Pushover Analysis

Abstract

In the paper, the equation of stiff characteristic coefficient of shear wall structure with unidirectional wall frames was derived, the deformation characteristics of structure with different wall frames ratio and height were analyzed. Through pushover analysis, the seismic performance of structures were evaluated by interlayer displacement angle and plastic hinge development process. Under earthquake action, increase of wall frames ratio will make plastic deformation increase and maximum interlayer displacement floor move down.The bottom of structure is the weak region, the short wall limbs of wall frames are the weak structural vertical members. The research results show that the wall frames bring adverse effects on the structural seismic performance, so the different design meathods should be carried out according to the overturning moment proportion of wall frames.

Hysteretic performance of reinforced concrete cavity shear walls

“…that the vertical silt changes the squat shear wall into several slender shear walls and the seismic behavior is improved evidently, but the strength and stiffness are reduced slightly. The frictional dissipaters or viscoelastic materials 10 or metal dampers 11 were installed in the slit to improve the energy dissipation of slit shear wall. Hollow shear wall was proposed by Jin and Xu 12 and a series of tests were conducted by Wang et al 13 The results shows that the hollow can improve the ductility and energy dispassion of the shear wall to a certain extent.…”