Behavior of High Rise Structures with Steel Plated Shear Walls

This paper focused on the behavior of steel plate shear walls (SPSW) in high-rise buildings. The influence of essential parameters including number of stories, stress angles and openings and investigated. Comparison with moment resistant frame and alternative method of modeling the shear walls with Strip elements is investigated. Using finite element method, a four story steel plated shear wall which has been tested before was modeled and the results obtained were compared with the test data. Comparison of the results approved the numerical modeling. Then the 20-story, 15-Story and 10-story steel plated shear walls were designed in accordance with AISC-Seismic Provisions to make results more practical. Comparing steel pated shear walls with different heights with each other, it is noticed that with lowering SPSWs, its initial stiffness improves and its ultimate strength decreases; but the overall ductile behavior was maintained. Also to make it useful and practical, moment resistant frames were modeled similar to SPSWs but without infilling panels. This research showed that with lowering the SPSW height, its behavior gets closer to moment resistant frames. Also behavior of SPSWs with openings was studied. Four openings in a same position, same width and different height were modeled to see the effect of openings on the overall SPSWbehavior. Generally, it was observed that an opening in infilling panels reduces SPSW initial stiffness and final strength.