TY - JOUR
T1 - The effect of material and ground motion uncertainty on the seismic vulnerability curves of RC structure
AU - Kwon, Oh Sung
AU - Elnashai, Amr
N1 - Funding Information:
The paper is an outcome of the Mid-America Earthquake Center project DS-3: Advanced Simulation Tools. The Mid-America Earthquake Center is an Engineering Research Center funded by the National Science Foundation under cooperative agreement reference EEC-9701785. The authors are grateful to Drs. Tom Prudhomme and Cristina Beldica for their help in having access to the parallel processing facilities at the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2006/1
Y1 - 2006/1
N2 - Starting from the premise that vulnerability curves are an indispensable ingredient of earthquake loss assessment, this paper focuses on establishing the relative effect of strong-motion variability and random structural parameters on the ensuing vulnerability curves. Moreover, the effect of the selection of statistical models used to present simulation results is studied. A three story ordinary moment resisting reinforced concrete frame, previously shake-table tested, is used as a basis for the fragility analysis. The analytical environment and the structural model are verified through comparison with shaking-table test results. The selection of ground motion sets, definition of limit states, statistical manipulation of simulation results, and the effect of material variability are investigated. No approximations are used to reduce the sample size or minimize the analytical effort, in order that attention is focused on the parameters under investigation. Notwithstanding the limited scope of the study, the results presented indicate that the effect of randomness in material response parameters is far less significant than the effect of strong-motion characteristics. Therefore, the importance of scrupulous selection and scaling of strong-motion and use of appropriate limit states and statistical models is emphasized.
AB - Starting from the premise that vulnerability curves are an indispensable ingredient of earthquake loss assessment, this paper focuses on establishing the relative effect of strong-motion variability and random structural parameters on the ensuing vulnerability curves. Moreover, the effect of the selection of statistical models used to present simulation results is studied. A three story ordinary moment resisting reinforced concrete frame, previously shake-table tested, is used as a basis for the fragility analysis. The analytical environment and the structural model are verified through comparison with shaking-table test results. The selection of ground motion sets, definition of limit states, statistical manipulation of simulation results, and the effect of material variability are investigated. No approximations are used to reduce the sample size or minimize the analytical effort, in order that attention is focused on the parameters under investigation. Notwithstanding the limited scope of the study, the results presented indicate that the effect of randomness in material response parameters is far less significant than the effect of strong-motion characteristics. Therefore, the importance of scrupulous selection and scaling of strong-motion and use of appropriate limit states and statistical models is emphasized.
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U2 - 10.1016/j.engstruct.2005.07.010
DO - 10.1016/j.engstruct.2005.07.010
M3 - Article
AN - SCOPUS:28444465483
SN - 0141-0296
VL - 28
SP - 289
EP - 303
JO - Engineering Structures
JF - Engineering Structures
IS - 2
ER -