The seismic performance of typical wood-frame structures in south-western British Columbia is analytically investigated through incremental dynamic analysis by utilizing available UBC-SAWS models. To reflect complex seismic hazard contributions from different earthquake sources (i.e., crustal, interface, and inslab events), we construct conditional mean spectra for three earthquake types, and use them to select adequate sets of ground motion records for scaling. The results indicate that the record selection procedures have significant influence on the probabilistic relationship between spectral acceleration at the fundamental vibration period and maximum inter-story drift ratio, highlighting the importance of response spectral shapes in selecting and scaling ground motion records. Subjected to 2%-in-50-years ground motions, House 1 is expected to experience very limited damage; Houses 2 and 3 may be disturbed by minor damage; whereas House 4 may suffer from major damage occasionally.
|Translated title of the contribution||Seismic vulnerability of wood-frame houses in southwestern British Columbia|
|Pages||183-1 - 183-8|
|Number of pages||8|
|Publication status||Published - Sep 2010|