Ph.D., P.E., Professor, Dept. of Civil and Env. Engineering, Univ. of California, Berkeley has over 48 years of experience in design, research and teaching courses in structural and earthquake engineering and design of buildings, bridges, and other structures as well as blast protection of structures. He has testified as an expert before the policy making and judicial bodies, and has completed more than 50 major research projects and has published more than 300 technical publications. His two most important projects are the field investigation and analysis of the tragic collapse of the World Trade Center and studies of major long-span bridges in the world including the San Francisco-Oakland Bay Bridge, Golden Gate Bridge, Albion River Bridge and the Akashi Kaikyo Bridge, the longest span bridge in the world. He can be reached at This email address is being protected from spambots. You need JavaScript enabled to view it. His website is: www.ce.berkeley.edu/~astaneh