Hazard-consistent seismic losses and collapse capacities for light-frame wood buildings in California and Cascadia
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Abstract
We evaluate the seismic performance of modern seismically designed wood light-frame (WLF) buildings, considering regional seismic hazard characteristics that influence ground motion duration and frequency content and, thus, seismic risk. Results show that WLF building response correlates strongly with ground motion spectral shape but weakly with duration. Due to the flatter spectral shape of ground motions from subduction events, WLF buildings at sites affected by these earthquakes may experience double the economic losses for a given intensity of shaking, and collapse capacities may be reduced by up to 50%, compared to those at sites affected by crustal earthquakes. These differences could motivate significant increases in design values at sites affected by subduction earthquakes to achieve the uniform risk targets of the American Society of Civil Engineers (ASCE) 7 standard.
Study Area
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Hazard-consistent seismic losses and collapse capacities for light-frame wood buildings in California and Cascadia |
Series title | Bulletin of Earthquake Engineering |
DOI | 10.1007/s10518-021-01258-y |
Volume | 19 |
Year Published | 2021 |
Language | English |
Publisher | Springer |
Contributing office(s) | Geologic Hazards Science Center |
Description | 25 p. |
First page | 6615 |
Last page | 6639 |
Country | United States |
State | Alaska, California, Oregon Washington |
City | Anchorage, Eugene, Los Angeles, Portland, San Francisco, Seattle |
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