QuakeCoRE Seminar: Brief Recommendations Addressing Reinforced Concrete Buildings (2023)

QuakeCoRE Seminar Series: Brief Recommendations Addressing Reinforced Concrete Buildings Affected by Earthquakes - Santiago Pujol (2023)

Presenter: Santiago Pujol (University of Canterbury)

Abstract:
Field evidence and previous research by Cecen (1979), FEMA 307 (1998), Shah (2021), Monical (2021) ,and ATC (2021) have shown that well-detailed reinforced concrete buildings can survive repeated earthquakes without negative changes in performance as long as the effects of the initial motion(s) are limited to flexural cracking, shear cracking controlled by transverse reinforcement, and flexural yielding. These phenomena a) tend not to cause reductions in structural resistance and, consequently, b) tend not to cause increases in earthquake deformation demands either. Nevertheless, after every strong earthquake, scores of reinforced concrete buildings are questioned throughout the world, even in the absence of critical structural damage. At the same time, too many reinforced concrete buildings around the world end up being demolished because of earthquake damage to facades, partitions, finishes, and other non-structural building components.

In this Seminar, the mentioned evidence is reviewed, and recommendations are presented to address both of these problems. The recommendations include building interventions of different nature and extent to address both brittle and ductile existing buildings, and consider implications of initial damage on the future performance of both the structure and non-structural components.

Bio:
Santiago Pujol is Professor of Civil Engineering at the University of Canterbury. Prior to moving to New Zealand, he was Professor of Civil Engineering at the Lyles School of Civil Engineering, Purdue University. His experience includes: earthquake engineering, evaluation and strengthening of existing structures, response of reinforced concrete to impulsive loads and earthquake demands, instrumentation and testing of structures, and failure investigations. He is a Fellow of the American Concrete Institute (ACI), and member of ACI committees 445 (Torsion and Shear), 314 (Simplified Design), 133 (Disaster Reconnaissance), and 318R (High-Strength Reinforcement). He is also member of the Earthquake Engineering Research Institute (EERI), associate editor of Earthquake Spectra, and founder of datacenterhub.org (a site funded by the U.S. National Science Foundation and dedicated to the systematic collection of research data). He received the Chester Paul Siess Award for Excellence in Structural Research from ACI, the Educational Award from Architectural Institute of Japan, and the Walter L. Huber Civil Engineering Research Prize from ASCE.

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