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Contact Information |
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Dr. Phan graduated from the Phu-Tho Polytechnic University of Saigon, Vietnam in 1980. He attended Washington University and received a Master of Science in Civil Engineering degree in 1983 and a Ph.D. in Civil Engineering degree in 1988. While working on his Ph.D., Dr. Phan joined the Structures Division of the National Institute of Standards and Technology (NIST) as a Research Structural Engineer in 1984. Upon joining NIST, Dr. Phan conducted experimental and analytical research on the punching shear failure of thick, lightweight aggregate, high-strength concrete structures typical of Arctic offshore ice walls. The study, which was sponsored by the Minerals Management Services and five major oil companies, investigated the potential for localized punching shear failure of Arctic offshore concrete ice walls and developed design details for improved punching shear resistance to impact by floating ice floes. Following the Loma Prieta earthquake in 1989, Dr. Phan conducted research in the area of field measurements of structural responses to ambient (wind) and strong motion (earthquake) vibrations. The aim was to develop a standard, in-situ test method for determining building dynamic properties, such as fundamental frequencies and associated damping ratios. In this project, digital signals generated by structural vibrations of five high-rise buildings in the San Francisco Bay area were extracted from strong motion accelerometers, deployed prior to the Loma Prieta earthquake as part of the U.S.G.S. strong motion instrumentation program. The structural response signals were processed using digital signal processing techniques to obtain building dynamic properties. Building response properties obtained from ambient vibration were then compared with those obtained from earthquakes to establish a relationship between the ambient and strong motion responses. Presently, Dr. Phan is conducting experimental and analytical research in the areas of fire performance of high-strength concrete and fire safety design and retrofit of structures. Dr. Phan participated in many failure investigations, including the partial collapse of the Pentagon following the 9/11 attack; the structural damage caused by the Kocaeli, Turkey earthquake (1999) and the Northridge, CA earthquake (1994); and the structural damage caused by tornadoes (the May 1997 Jarrel, Texas; February 1998, Orlando, Florida; April 1998, Alabama; and June 1998, Spencer, South Dakota tornadoes). He is a coauthor of The Pentagon Building Performance Report, published by the American Society of Civil Engineers (ASCE) in January 2003. Dr. Phan was awarded the U.S. Department of Commerce Bronze Medal in 1990, the U.S. Army Corps of Engineer/EDRC Outstanding Team Effort Award in 2002 for valuable contribution to the Pentagon Rebuilt Retrofit Program Study, and the American Concrete Institute (ACI)’s Leonard C. Wason Medal for Materials Research in 2004. He is a Registered Professional Engineer (P.E.) in the State of Virginia. He is a Senior Member of committee 129-MHT of the International Union of Testing and Research Laboratories for Materials and Structures (RILEM). Dr. Phan also is a member of ACI and currently serving as chairman of ACI Technical Committee 216 - Fire Resistance and Fire Protection of Concrete and Masonry Structures. He is also a member of ASCE’s Standards Committee 29 – Structural Design for Fire Conditions. |
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Long T. PhanEducationPhu-Tho Polytechnic University of Saigon, B.S., Civil Engineering, 1980Washington University, M.S., Civil Engineering, 1983 Washington University, Ph.D., Civil Engineering, 1988 PositionResearch Structural EngineerStructures Group Materials and Construction Research Division Building and Fire Research Laboratory |
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Information Last updated: 2/6/2008