Hazard-consistent seismic losses and collapse capacities for light-frame wood buildings in California and Cascadia

Bulletin of Earthquake Engineering
By: , and 

Links

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
Google Analytic Metrics Metrics page
Additional publication details