Parametric Seismic Performance Evaluation of Tall Steel Moment Resisting Frames With Shear Walls

In this paper, parametric seismic performance evaluation of tall steel moment resisting frames with shear walls is presented. The performance point of each frame is determined by principals of capacity and demand curves. The evaluated frames are of 15, 20 and 25 storey. Effective damping of each frame is calculated using ATC-40 method. Effect of parameters such as shear to wall stiffness ratio, total structure stiffness to frame stiffness ratio, wall width to structure height, number and width of bays, and height of the frames to seismic performance are considered and results are evaluated for immediate occupancy performance level.