Response study of a tall San Diego, California building inferred from the M7.1 July 5, 2019 Ridgecrest, California earthquake motions
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Abstract
The shaking of a new 24-story tall building in San Diego, California, was recorded by its seismic monitoring array during the M7.1 Ridgecrest, California earthquake of July 5, 2019. The building is located ~340 km from the epicenter of the event. The building is a special moment framed (SMF) steel structure with reduced beam sections (RBS) and viscous damper systems (DS). Peak accelerations recorded by the array indicate 0.007 g at the basement level and 0.044 g at the roof level. Spectral analyses and system identification methods indicate coupled NS, EW, and torsinal fundamental modes at ~ 0.30 Hz frequency and critical damping percentages < 5%. For the EW and fundamental torsional modes, critical damping percentages are < 2.5%. At the low-level shaking, the computed largest average drift ratio is ~ 0.065%, less than 0.5% of the value considered to be the starting threshold of nonlinear behavior or damage.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Response study of a tall San Diego, California building inferred from the M7.1 July 5, 2019 Ridgecrest, California earthquake motions |
| Series title | The Open Construction & Building Technology Journal |
| DOI | 10.2174/18748368-v16-e2108040 |
| Volume | 16 |
| Issue | Suppl 1 |
| Year Published | 2022 |
| Language | English |
| Publisher | Bentham Open |
| Contributing office(s) | Earthquake Science Center |
| Description | e187483682108040, 14 p. |
| Country | United States |
| State | California |
| City | San Diego |
| Google Analytic Metrics | Metrics page |