@article { author = {Manie, Salar and Moghadam, Abdolreza and Ghafory-Ashtiany, Mohsen}, title = {Vector-valued Probabilistic Seismic Demand Assessment of Structures under Two-Component Ground Motions}, journal = {Journal of Seismology and Earthquake Engineering}, volume = {16}, number = {4}, pages = {247-260}, year = {2014}, publisher = {International Institute of Earthquake Engineering and Seismology}, issn = {1735-1669}, eissn = {2821-2541}, doi = {}, abstract = {The present paper is an attempt to quantify probabilistic seismic demand of three-dimensional structures under two-component (vector-valued) ground motions, focusing on the collapse region of nonlinear response. While utilizing results of de-aggregated vector-valued probabilistic seismic hazard analysis (V-PSHA) as the seismic demand input, the assessment procedure is essentially based on results of nonlinear incremental dynamic analysis (IDA) of the three-dimensional (3D) model of the structure. Response of the structure is formulated based on the SRSS combination of the structure maximum inter-story drifts in plan orthogonal directions assuming log-normal distribution of the demands. The efficiency of the proposed procedure is demonstrated via a detailed step-by-step example with different period of vibrations and structural properties in orthogonal directions, which proves the adequacy of the method for practical vector-valued probabilistic seismic evaluation of regular and irregular structures.}, keywords = {Vector-valued seismic demand assessment,Probabilistic,Performance-based design,Collapse,Intensity measure,IDA}, url = {http://www.jsee.ir/article_240699.html}, eprint = {http://www.jsee.ir/article_240699_b7be8edb9f29a4f8b4e7715f2254b6bd.pdf} }