A Comparative Seismic Performance of Various Steel Standards

The present study investigates the seismic potentialities of steel frame structure designed by different standards namely BS EN 1998-1-2004, IS 800-1984 and the latest IS 800-2007 through Pushover analysis and Time history analysis. For this, first of all an overview of reasons of failure and seismic design provisions in European standards and in Indian standards is presented. A typical frame structure is designed with above mentioned standards and subjecting each codified frame to Pushover analysis (nonlinear static analysis) and nonlinear Time history analysis individual and comparison of performance is provided. Finally the results are reviewed with respect to latest Indian standards. It seems that latest Indian standards (IS 800-2007) caters for identified seismic design factors effectively and is more explicit for failure hierarchy, connection details and panel zone buckling thus offering superior performance in ductility criteria but a middling performance in strength criteria.