Speaker:
Richard Sause
Professor and ATLSS Center Director Department of Civil and Environmental Engineering, Lehigh University, Bethlehem, PA, USA
 

Time:2014/12/11/ 10:00-11:30 Venue: Civil Engineering B504
 Chair: xilin lu, Associate Professor

Outline):
Unlike conventional structural systems, damage-free self-centering (SC) systems are designed to suffer no significant structural damage under the design basis earthquake (DBE), enabling the building to be functional after the DBE. Similar to conventional structural systems, these SC systems are designed to avoid collapse under the maximum considered earthquake (MCE). SC systems have several features: the lateral force-drift behavior softens without inelastic deformation of the structural members; this softening behavior is created by gap opening at selected post-tensioned connections; and energy dissipation under seismic loading is not from damage to main structural members, but from energy dissipation elements that are specified in the design process. The presentation will show results of large-scale hybrid earthquake simulations on SC-MRF and SC-CBF laboratory specimens.
(About the Speaker :
Richard Sause is Joseph T. Stuart Professor of Structural Engineering at Lehigh University. His research interests include innovative self-centering earthquake-resistant systems; seismic performance of precast concrete, reinforced concrete, and steel structures; seismic performance of structures with supplemental dampers. He has won the following awards: the Leslie D. Martin Award for Merit (PCI, 2014); the Raymond C. Reese Research Prize (ASCE, 2009); the J. James R. Croes Medal (ASCE, 2007); the Charles C. Zollman Award (PCI, 2006); and the Raymond C. Reese Structural Research Award (ACI, 1987).