1. Helmut‐Schmidt‐Universität/Universität der Bundeswehr Hamburg Holstenhofweg 85 22043 Hamburg
2. School of Civil and Environmental EngineeringGeorgia Institute of Technology 790 Atlantic Drive Atlanta Georgia 30332‐0355 USA
3. University of South FloridaDept. of Civil and Environmental Engineering 4202 E. Fowler Avenue Tampa Florida 33620‐5350 USA