| Title | Rapid seismic risk assessment at urban scale |
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| Author | Nastev, M ;
Abo-El-Ezz, A; Smirnoff, A; Nollet, M -J; McGrath, H |
| Source | 16th European Conference on Earthquake Engineering, proceedings; 10658, 2018 p. 1-9  Open Access |
| Links | Online - En ligne
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| Image |  |
| Year | 2018 |
| Alt Series | Natural Resources Canada, Contribution Series 20200439 |
| Publisher | European Association of Earthquake Engineering |
| Meeting | 16th European Conference on Earthquake Engineering (16ECEE); Thessaloniki; GR; June 18-21, 2018 |
| Document | Web site |
| Lang. | English |
| Media | on-line; digital |
| File format | pdf |
| Province | Quebec |
| NTS | 31G/01; 31G/08; 31G/09; 31G/16; 31H/02; 31H/03; 31H/04; 31H/05; 31H/06; 31H/07; 31H/10; 31H/11; 31H/12; 31H/13; 31H/14; 31H/15; 31I/02; 31I/03; 31I/04; 31J/01 |
| Area | Montreal; St. Lawrence River |
| Lat/Long WENS | -74.5000 -72.7500 46.2500 45.0000 |
| Subjects | Science and Technology; Information and Communications; Health and Safety; seismic risk; earthquake risk; urban geology; models; software; ER2 (rapid risk evaluation); Methodology; Decision making;
Public safety; Buildings |
| Illustrations | location maps; geoscientific sketch maps; plots; screen captures; bar graphs |
| Program | Public Safety Geoscience
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| Released | 2018 06 01 |
| Abstract | The primary objective of the present study is to overcome the current communication barriers between seismic risk experts on one side and decision makers from the public safety community on the other. A
simplified methodology was developed for a first-hand assessment of the potential earthquake impacts as a combination of three major components: seismic hazard, inventory of buildings at risk and respective vulnerability models. Due to the similar
construction practices, the same structural parameters as proposed by the US FEMA were used for 128 building types. Central to the vulnerability analysis is the concept of fragility function, which correlates the probability of exceedance of a
specified damage state to the intensity of the seismic shaking. Fragility functions were developed based on the magnitude of the seismic scenario and the input spectral acceleration at a period of 0.3s (Sa0.3) and 1.0s (Sa1.0) as intensity measures
(IM) of the seismic shaking. To accelerate the damage assessment, the distance and the local site effects are implicitly considered by the spatial distribution of IMs. In this way, tedious iterations for determination of the performance point are
avoided and seismic scenarios for large urban centers can be run in a few minutes. The above approach was programmed into an easy to run web-application referred to as ER2 (rapid risk evaluation). Equipped with graphic user interface, ER2 allows
non-expert users to run otherwise complex seismic risk scenarios at a 'press of a button' through a simple intuitive selection process. |
| GEOSCAN ID | 327302 |
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