Evaluation of seismic behavior of steel shear wall by time history analysis

Abstract

Reducing the vulnerability of buildings against earthquakes is one of the most important issues for engineers and public concern in the last decade. For designers, choosing the best option among the different lateral bracing systems that exist in terms of functional and economic is one of the most important issues in the development and or retrofitting of structures. In recent years, the steel shear wall has gradually acquired its place in the construction industry. However, much research has been done by researchers on this system; but so far, less has been done to analyze seismic behavior of this lateral bracing system At different heights. In this study, seismic behavior of steel shear wall in 3, 6 and 12-story steel structures was investigated by time history analysis method under 3 earthquake records including Northridge 1994, loma prieta 1989 and Imperial valley 1979. The results of this study indicate that the structures with steel shear wall At different heights has shown the desired performance in terms of seismic behavior including input energy, story drift, base shear and Roof center of mass displacement. The results in the 12-story structure were much better than 3 and 6-story structures.