Probabilistic Basis for 2000 SAC Federal Emergency Management Agency Steel Moment Frame Guidelines
Publication: Journal of Structural Engineering
Volume 128, Issue 4
Abstract
This paper presents a formal probabilistic framework for seismic design and assessment of structures and its application to steel moment-resisting frame buildings. This is the probabilistic basis for the 2000 SAC Federal Emergency Management Agency (FEMA) steel moment frame guidelines. The framework is based on realizing a performance objective expressed as the probability of exceeding a specified performance level. Performance levels are quantified as expressions relating generic structural variables “demand” and “capacity” that are described by nonlinear, dynamic displacements of the structure. Common probabilistic analysis tools are used to convolve both the randomness and uncertainty characteristics of ground motion intensity, structural “demand,” and structural system “capacity” in order to derive an expression for the probability of achieving the specified performance level. Stemming from this probabilistic framework, a safety-checking format of the conventional “load and resistance factor” kind is developed with load and resistance terms being replaced by the more generic terms “demand” and “capacity,” respectively. This framework also allows for a format based on quantitative confidence statements regarding the likelihood of the performance objective being met. This format has been adopted in the SAC/FEMA guidelines.
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References
AISC. (1994). Manual of steel construction load and resistance factor design, 2nd Ed., Chicago.
Benjamin, J. R., and Cornell, C. A. (1970). Probability, statistics, and decision for civil engineers, McGraw-Hill, New York.
DOE. (1994). “Natural phenomena hazards design and evaluation criteria for Department of Energy facilities.” DOE-STD-1020-94, Washington, D.C.
Federal Emergency Management Agency (FEMA). (2000). “Recommended seismic design criteria for new steel moment-frame buildings.” Rep. No. FEMA-350, SAC Joint Venture, Washington, D.C.
Jalayer, F., and Cornell, A. (1998). “Development of a probability-based demand and capacity factor design seismic format.” Internal Technical Memo, Dept. of Civil and Environmental Engineering, Stanford Univ., Stanford, Calif.
Jalayer, F., and Cornell, A. (2002). “A technical framework for probability-based demand and capacity factor (DCFD) seismic formats.” RMS Technical Rep. No. 43 to the PEER Center, Dept. of Civil and Environmental Engineering, Stanford Univ., Stanford, Calif.
Kennedy, R. P., and Short, S. A. (1994). “Basis for seismic provisions ofDOE-STD-1020.” Rep. No. UCRL-CR-111478, Lawrence Livermore National Laboratory, Livermore, Calif., and Rep. No. BNL-52418, Brookhaven National Laboratory, Upton, N.Y.
Luco, N., and Cornell, C. A. (1998). “Effects of random connection fractures on the demands and reliability for a 3-story pre-Northridge SMRF structure.” Proc., 6th U.S. National Conf. on Earthquake Engineering, Earthquake Engineering Research Institute, Oakland, Calif.
Luco, N., and Cornell, C. A.(2000). “Effects of connection fractures on SMRF seismic drift demands.” J. Struct. Eng., 126(1), 127–136.
Shome, Nilesh, and Cornell, C. Allin. (1998). “Normalization and scaling accelerograms for nonlinear structural analysis.” Proc., 6th U.S. National Conf. on Earthquake Engineering, Earthquake Engineering Research Institute, Oakland, Calif.
Shome, N., and Cornell, C. A. (1999). “Probabilistic seismic demandanalysis of nonlinear structures.” Rep. No. RMS-35, Dept. of Civil and Environmental Engineering, Stanford Univ., Stanford, Calif.
Shome, N., Cornell, C. A., Bazzurro, P., and Carballo, J. E.(1998). “Earthquakes, records and nonlinear responses.” Earthquake Spectra, 14(3), 469–500.
Vamvatsikos, D., and Cornell, C. A.(2002). “Incremental dynamic analysis.” Earthquake Eng. Struct. Dyn., 31(3), 491–514.
Yun, S. Y., and Foutch, D. A. (2000). “Performance prediction and evaluation of low ductility steel moment frames for seismic loads.” SAC Background Rep. No. SAC/BD-00/26, SAC Joint Venture, Richmond, Calif.
Yun, S.-Y., Hamburger, R. O., Cornell, C. A., and Foutch, D. A.(2002). “Seismic performance evaluation for steel moment frames.” J. Struct. Eng., 128(4), 534–545.
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Copyright © 2002 American Society of Civil Engineers.
History
Received: Dec 13, 2000
Accepted: Dec 4, 2001
Published online: Apr 1, 2002
Published in print: Apr 2002
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