000019901 001__ 19901
000019901 005__ 20170118182342.0
000019901 04107 $$aeng
000019901 046__ $$k2017-01-09
000019901 100__ $$aDu, Wenqi
000019901 24500 $$aSeismic Loss Estimate of Singapore Under a Deterministic Sumatran Earthquake Scenario

000019901 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019901 260__ $$b
000019901 506__ $$arestricted
000019901 520__ $$2eng$$aEvaluation of seismic risk for large cities has become increasingly important due to the concentration of exposures resulting from their dense population and rapid economic growth. Singapore is a modern city located in a low-to-moderate seismicity zone. It has frequently felt shakings by long-distance major earthquakes originated from the Sumatra region. In this study, the seismic loss estimates are conducted for Singapore considering a deterministic earthquake scenario. A set of ground motions is simulated for a Sumatran strike-slip Mw 7.7 earthquake scenario. To quantify the site amplification effects of Singapore, 555 soil profiles which include shear-wave velocity and unit weight profiles are used. The collected boreholes can be grouped as ground types B, C and D, respectively. One-dimensional equivalent-linear analysis is performed using the SHAKE program. The main Singapore terrain is uniformly gridded in 200 m x 200 m squares, which result in 19,276 cells in total. Kriging techniques are then utilized to estimate surface ground motion intensity values at each cell. The building inventory data consist of about 123,000 buildings of 1 to 15 stories. For each building category, the structural losses can be estimated based on the capacity spectrum and fragility procedures in HAZUS-MH. The estimated structural losses of Singapore are about 0.5% of the total exposure. Since most Singapore buildings have been designed according to the BS code with the requirement of notional horizontal load, it is important to understand the seismic performance of buildings under the postulated scenarios of major long-distance earthquakes. This approach can also be applied to other major urban centers with significant exposures in a low to moderate seismicity region.

000019901 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019901 653__ $$aUrban loss estimation; Ground motion simulation; Site response analysis; Singapore.

000019901 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019901 720__ $$aDu, Wenqi$$iPan, Tso-Chien$$iWalling, Meya
000019901 8560_ $$ffischerc@itam.cas.cz
000019901 8564_ $$s2426222$$uhttps://invenio.itam.cas.cz/record/19901/files/4638.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4638.
000019901 962__ $$r16048
000019901 980__ $$aPAPER