TY - JOUR PY - 2017// TI - Impact of earthquake types and aftershocks on loss assessment of non-code-conforming buildings: case study with Victoria, British Columbia JO - Earthquake spectra A1 - Tesfamariam, Solomon A1 - Goda, Katsuichiro SP - 551 EP - 579 VL - 33 IS - 2 N2 - This paper presents a study on the impact of earthquake types (shallow crustal, deep inslab, and megathrust Cascadia interface earthquakes) and aftershocks on loss assessment of non-code-conforming reinforced concrete (RC) buildings. The loss assessment is formulated within the performance-based earthquake engineering framework. The dependency between the maximum and residual inter-story drift ratios are captured using copulas. Finite-element models that take into account key hysteretic characteristics of non-ductile RC frames were adopted and incremental dynamic analysis is utilized to compute collapse risk. The proposed procedure is applied to a set of 2-, 4-, 8-, and 12-story non-ductile reinforced concrete frames located in Victoria, British Columbia, Canada. From the results, the aftershock showed marked difference for the 2-story building. At annual probability of 10−2-10−3, crustal and inslab events with Mw6.5 to Mw7.5 contributed the most to the loss as these events occur more frequently. At rarer annual probability of 10−3-10−4, the Cascadia event having Mw8.5 to Mw9.0 is predominant and contributed the most to the loss.
Language: en
LA - en SN - 8755-2930 UR - http://dx.doi.org/10.1193/011416EQS013M ID - ref1 ER -