TY - JOUR
T1 - Fragility relationships for torsionally-imbalanced buildings using three-dimensional damage characterization
AU - Jeong, Seong Hoon
AU - Elnashai, Amr S.
N1 - Funding Information:
The work presented above was undertaken as part of the Mid-America Earthquake (MAE) Center research project CM-4: Structural Retrofit Strategies, which is under the Consequence Minimization Thrust Area. The MAE Center is a National Science Foundation Engineering Research Center (ERC), funded through contract reference NSF Award No. EEC-9701785. This paper was supported by the Inha University.
PY - 2007/9
Y1 - 2007/9
N2 - In this paper, a methodology for the derivation of fragility relationships for three-dimensional (3D) structures with plan irregularities is developed. To illustrate the procedure, fragility curves are derived for an irregular reinforced concrete (RC) building under bi-directional earthquake loadings. In order to represent the damage state of irregular structures, a spatial (3D) damage index is employed as the salient response parameter. The feasibility of using a lognormal distribution for the bounded response variables, as in the case of structural fragility analysis, is investigated. Through the comparison between the fragility curves derived using the spatial and the previously-existing damage indices, it is shown that the proposed method provides realistic results and is therefore recommended for fragility analysis of buildings with significant torsional and bi-directional responses.
AB - In this paper, a methodology for the derivation of fragility relationships for three-dimensional (3D) structures with plan irregularities is developed. To illustrate the procedure, fragility curves are derived for an irregular reinforced concrete (RC) building under bi-directional earthquake loadings. In order to represent the damage state of irregular structures, a spatial (3D) damage index is employed as the salient response parameter. The feasibility of using a lognormal distribution for the bounded response variables, as in the case of structural fragility analysis, is investigated. Through the comparison between the fragility curves derived using the spatial and the previously-existing damage indices, it is shown that the proposed method provides realistic results and is therefore recommended for fragility analysis of buildings with significant torsional and bi-directional responses.
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U2 - 10.1016/j.engstruct.2006.11.010
DO - 10.1016/j.engstruct.2006.11.010
M3 - Article
AN - SCOPUS:34547536988
SN - 0141-0296
VL - 29
SP - 2172
EP - 2182
JO - Engineering Structures
JF - Engineering Structures
IS - 9
ER -