Development of a seismic rehabilitation master plan for the Oregon State University campus Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/nc580r865

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  • The recent increase in awareness of the seismic hazards in Oregon has led to a concern regarding the safety of Oregon State University buildings. While the decision has been made to initiate the seismic rehabilitation of campus facilities, the question of which buildings pose the greatest hazards, and are therefore in greatest need of upgrade, has remained unanswered. This study addresses these questions by prioritizing 74 major buildings on the Oregon State University campus (58 of which are academic facilities, the remainder being student life) for seismic rehabilitation. This prioritization is based on relative hazard as measured by estimated loss of life in each building. Loss of life is estimated by multiplying assumed building occupancies by a derived casualty ratio for each building. Casualty ratios and building damage ratios are derived by adapting methodologies developed in ATC-13 and ATC-21. ATC-13 developed a loss estimate methodology for California by surveying a panel of engineering experts. ATC-21 developed a methodology to adjust these estimates for buildings outside of California. It also incorporates the effects of individual building features such as plan irregularities, which tend to increase risk of damage. A subsurface soil investigation was conducted to establish an estimated peak ground acceleration (EPA) of 0.22g as appropriate for a 500-year return period seismic event. Based on this level, the economic loss estimate is $219 million, which includes both structural and nonstructural damages. For a daytime earthquake (3:00 p.m.), 555 serious injuries and 273 fatalities are estimated. For a nighttime event (3:00 am), 441 serious injuries and 220 fatalities are estimated. A master plan for seismic rehabilitation is presented based on relative hazards as measured by estimated fatalities in each building. The two highest priority academic facilities are the Administration Building and the Valley (formerly Kerr) Library. The Valley Library is currently undergoing a seismic rehabilitation. The two highest priority student life facilities are Callahan Hall and Wilson Hall.
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  • description.provenance : Made available in DSpace on 2010-10-13T16:48:26Z (GMT). No. of bitstreams: 2 TrautweinStevenR1998.pdf: 2679540 bytes, checksum: c5df51f3a188212b254f3375a153eff9 (MD5) Trautwein, Steven R.zip: 266552 bytes, checksum: c72b691d23e034df46813d9599daebfb (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2010-10-13T16:47:05Z (GMT) No. of bitstreams: 2 TrautweinStevenR1998.pdf: 2679540 bytes, checksum: c5df51f3a188212b254f3375a153eff9 (MD5) Trautwein, Steven R.zip: 266552 bytes, checksum: c72b691d23e034df46813d9599daebfb (MD5)
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  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2010-10-13T16:48:26Z (GMT) No. of bitstreams: 2 TrautweinStevenR1998.pdf: 2679540 bytes, checksum: c5df51f3a188212b254f3375a153eff9 (MD5) Trautwein, Steven R.zip: 266552 bytes, checksum: c72b691d23e034df46813d9599daebfb (MD5)

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