Conferencia Magistral 2
Dr. Alfredo H-S Ang
"Optimal Reliability-Based Aseismic System Design of High-Rise Buildings"
The reliability-based design of structural components has been well established based on calibration. However, the reliability-based design of structures as a system remains an issue that has not been addressed. This issue requires the assessment of the system reliability of a complete structure, considering the effects of both the aleatory and epistemic types of uncertainty. This can be addressed effectively using the PDEM (probability density evolution method) for the effects of the aleatory uncertainty, resulting in the PDF of the critical state of a system. The effects of the epistemic uncertainty may be included as the error of the mean-value of the critical state of the system. The method is applied to the minimum life-cycle cost aseismic design of a high-rise building in Mexico.
Alfredo H-S. Ang, Research Professor, University of California, Irvine, CA: Dr. Ang is currently Research Professor and Professor Emeritus at the University of California in Irvine, California, USA. He is also Professor Emeritus at the University of Illinois at Urbana-Champaign since 1988 where he received his Ph.D. in 1959 and was on the faculty of Civil Engineering from 1959 through 1988. His main area of research is on the application of probability and reliability in civil and structural engineering, with emphasis on safety of engineering systems, including seismic risk and earthquake engineering, quantitative risk assessment (QRA), life-cycle cost and performance, sustainability of green buildings and infrastructure. He has published about 400 papers and articles, and also a two-volume textbook on probability concepts in engineering, which have been translated into several languages; the 2nd edition of Vol I was published in February 2007. During his academic career, he has directed 55 Ph.D. students and countless post-doctoral researchers from many parts of the world. He has given invited keynote papers and lectures in numerous major national and international conferences, including the 2009 Freudenthal Keynote Lecture at the ICOSSAR’09 in Osaka, Japan and the 2010 Kwang-Hwa keynote at the ISRERM2010 in Shanghai, China. During his career, he has been serving as consultant and technical adviser to government and industry on technological risk and reliability issues, both in the U.S. and abroad. He is a member of the prestigious US National Academy of Engineering (elected in 1976) and has received a large number of prestigious awards from the ASCE and other societies, including Honorary Membership in the ASCE.