Estimating site-specific strong earthquake motions
| Autor: | Pengcheng Liu, Zhaohui Yang, F. Bonilla, Matthew S. Hoehler, S. Gonzales, B. Minster, David D. Oglesby, J. Wagoner, B. Lawrence, Leo Matešić, S. Park, Steven M. Day, T. Lai, A. Martin, Jamison H. Steidl, Frank L. Vernon, M. Doroudian, Michael F. Riemer, Mladen Vucetic, Ahmed Elgamal, Daniel Lavallée, F.E. Heuze, Robert J. Mellors, Ralph J. Archuleta |
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| Rok vydání: | 2004 |
| Předmět: |
Ground motion
Engineering Earthquake engineering business.industry Soil Science Geotechnical Engineering and Engineering Geology Civil engineering Risk evaluation Seismic analysis Transport engineering earthquakes strong motions vertical seismic arrays seismic syntheses empirical Green’s functions theoretical Green’s functions nonlinear Probabilistic seismic hazard analysis Critical assessment Seismic risk business National laboratory Civil and Structural Engineering |
| Zdroj: | Soil Dynamics and Earthquake Engineering. 24:199-223 |
| ISSN: | 0267-7261 |
| Popis: | The Campus Earthquake Program (CEP) of the University of California (UC) started in March 1996, and involved a partnership among seven campuses of the UC—Berkeley, Davis, Los Angeles, Riverside, San Diego, Santa Barbara, Santa Cruz—and the Lawrence Livermore National Laboratory (LLNL). The aim of the CEP was to provide University campuses with site-specific assessments of their earthquake strong motion exposure, to complement estimates they obtain from consultants according to the state-of-the-practice (SOP), i.e. Building Codes (UBC 97, IBC 2000), and Probabilistic Seismic Hazard Analysis (PSHA). The Building Codes are highly simplified tools, while the more sophisticated PSHA is still somewhat generic in its approach because it usually draws from many earthquakes not necessarily related to the faults threatening the site under study. Between 1996 and 2001, the site-specific studies focused on three campuses: Riverside, San Diego, and Santa Barbara. Each campus selected 1–3 sites to demonstrate the methods and procedures used by the CEP: Rivera Library and Parking Lots (PL) 13 and 16 at UCR, Thornton Hospital, the Cancer Center, and PL 601 at UCSD, and Engineering I building at UCSB. The project provided an estimate of strong ground motions at each selected site, for selected earthquake scenarios. These estimates were obtained by using an integrated geological, seismological, geophysical, and geotechnical approach, that brings together the capabilities of campus and laboratory personnel. Most of the site-specific results are also applicable to risk evaluation of other sites on the respective campuses. The CEP studies have provided a critical assessment of whether existing campus seismic design bases are appropriate. Generally speaking, the current assumptions are not acknowledging the severity of the majority of expected motions. Eventually, both the results from the SOP and from the CEP should be analyzed, to arrive at decisions concerning the design-basis for buildings on UC campuses. Published by Elsevier Ltd. |
| Databáze: | OpenAIRE |
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