Seminar Announcement

Dr. Murat Saatcioglu (University of Ottawa, Canada), our visiting professor within the ERASMUS faculty exchange program, will be holding two seminars open to all students and researchers. The seminar program is given below.

18.2.2020, 12:40, K1-106, Lessons Learned from Previous Earthquakes

*Abstract:* A large number of reconnaissance visits were conducted after major earthquakes around the world to investigate seismic performance of civil engineering infrastructure. These field investigations provide ample opportunities to enhance current knowledge on seismic vulnerability of structures and seismic risk mitigation strategies. Lessons learned from eight previous reconnaissance trips will be presented with emphasis on the seismic events of the past decade, including the 2017 Puebla-Morelos Earthquake in Mexico, 2013 Lushan City Earthquake in China and the 2010 Earthquake in Chile. Seismic deficiencies in non-ductile reinforced concrete and unreinforced masonry buildings, as well as the seismic behavior of bridge infrastructure will be discussed. The performance of retrofitted buildings during the earthquakes will be critically examined. It will be demonstrated that the lessons learned are mostly in the form of lessons re-learned after each earthquake because of the challenges associated with immediate remedial actions and the short-term memory of the regulatory authorities for reducing seismic risk worldwide.

21.2.2020, 13:40, K1-106, Blast Threat and Performance of Civilian Infrastructure Under Blast Loads

*Abstract:* Shock waves generated by accidental explosions or maliciously intended acts of terror can be a serious threat to the safety and security of civil engineering infrastructure. Blast-resistant design is not common for civilian buildings, and most building codes do not require explicit designs for blast loads. Therefore, buildings (as well as other physical assets) are vulnerable to blast threats, especially if the bomb size
(charge weight) is high, as in the case of car and truck bombs, and the proximity of explosion (standoff distance) is close. The most critical building components to blast overpressures are the elements of building envelop in the form of glass windows, curtain walls, reinforced concrete cladding and wall panels, as well as concrete block and brick masonry walls. Failure of these elements may result in fragmentation and glass shard that may fly into the building at supersonic velocities, posing a serious life-safety hazard to building occupants. Blast loads can also be critical for structural members. Lower-story columns are especially vulnerable to blast loads because of their proximity to surface explosions, and their role as elements responsible from overall strength and stability of the upper floors. Also, an interior explosion in an underground parking may cause significant damage to structural slabs.  The performance of structural and non-structural elements under blast-induced shock waves will be presented with examples of potential damage and associated risk to critical infrastructure.

*Dr. Murat Saatcioglu* is a Distinguished University Professor and University Research Chair in the Department of Civil Engineering of the University of Ottawa, Ottawa, Canada. He is the current Director of the Hazard Mitigation and Disaster Management Research Centre of the same university. His research interests include analysis, design and retrofit of structures subjected to extreme loads with a specific focus on earthquake and blast loads. He contributed significantly to building code and standard development in Canada and the US for design and retrofit of buildings against seismic and blast loads.  Professor Saatcioglu is the recipient of numerous national and international research and teaching awards and medals, including the 2015 A.B. Sanderson Award and 2014 Whitman Wright Award both from the Canadian Society for Civil Engineering, 2004 Wason Medal from the American Concrete Institute, the 2000 Raymond C. Reese Research Prize from the American Society of Civil Engineers, 2001 and 2004 Casimir Gzowski Medals from the Canadian Society for Civil Engineering, and the  1989 Charles Whitney Medal from the American Concrete Institute. He is a Fellow of the Canadian Academy of Engineers, a Fellow of the Engineering Institute of Canada, a Fellow of the American Concrete Institute, a Fellow of the Canadian Society for Civil Engineering. Dr. Saatcioglu is the editor and co-author of three books, author or co-author of 32 book chapters and over 220 technical papers. He holds two patents and he is a registered Professional Engineer in the Province of Ontario.