Executive SummaryIn the 20 years since the UC Regents Policy on Seismic Safety was adopted to guide the campus in assessing the safety of its structures and the campus inaugurated its seismic corrections program, several major earthquakes have occurred in urban areas. The Loma Prieta in the Bay Area, Northridge in Southern California, and Japans Kobe earthquake have together provided a wealth of insight into seismicity and building behavior. With this new information, and in consideration of the age of campus buildings, the campuss proximity to the Hayward Fault, and the universitys obligation to provide safe facilities for students, faculty, and staff, the Berkeley campus commissioned a new review of its buildings. The completion of this review provides the campus with the most up-to-date, comprehensive analysis of structural seismic safety performance it has ever had. Correcting seismic deficiencies in campus facilities has long been an issue of the highest priority. Now, equipped with this new review, the campus can more effectively focus its efforts to meet its greatest responsibility: the protection of the life and safety of students, faculty, and staff. Further, the review provides a clearer understanding of what it will take to ensure the sustained operation of the campus as one of the regions largest job centers and one of the nations most important educational and research institutions. The 1997 survey was conducted jointly by three of Californias most experienced structural engineering firms. They analyzed the probable performance of campus structures in the likely event of a major earthquake on the Hayward Fault. They concluded that given the age of the campuss buildings and new information on how buildings react in strong earthquakes, particularly given the campuss proximity to a major fault, the amount of campus space in need of corrective seismic work has increased significantly. In the 1970s, when the first facilities assessment was undertaken, experts determined that a significant portion of the main campuss space required retrofitting to be safe in a major earthquake. Work on 18 of the structures thus identified including the upgrading of the three high-rise residence hall complexes to a rating of Good has been completed or is under way. Thus far, the campuss program has funded approximately $250 million of seismic improvements. Phase 1 of the new assessment, conducted over the summer, has determined that 73 percent of the space on campus, including buildings with corrections under way, will perform adequately in a major earthquake, but approximately 27 percent of the main campuss total space rates Poor or Very Poor and needs corrective work. The second phase, assessing primarily off-campus structures, will be completed in mid-November. Most building ratings were downgraded as a result of greater knowledge of building performance in earthquakes, particularly structures close to fault lines. The buildings today are not less safe than they were 20 years ago, but we now have superior evaluation techniques based on actual experiences of earthquakes in urban areas. Further, the age of the campuss physical plant cannot be overlooked. Most of the seismically deficient buildings were constructed before 1960 when less stringent building codes were in effect. The preliminary estimated total cost to retrofit the on-campus facilities most in need of attention for life safety purposes is approximately $700 million, in 1997 dollars. Preliminary projections of available funds indicate that a 20- to 30-year time frame could be required to fund a seismic program of this magnitude. The total cost of the program would escalate to at least $1.2 billion over such a time frame, including assumed inflationary increases and new understandings of seismic safety developed along the way. Though correcting these buildings will be a long-term, costly undertaking, the new information provides the campus with an exceptional framework from which to develop a strategic plan to deliver the most responsible, effective, and cost-efficient solution. To start, Chancellor Robert M. Berdahl has committed $1 million to intensify campus planning and has announced a 10-point action plan that includes a high-level administrative restructuring to focus on the issue. The 10-point plan, called the SAFER (Seismic Action plan for Facilities Enhancement and Renewal) Program, provides a comprehensive approach to seismic safety on the UC Berkeley campus. The 10-Point SAFER Program
The SAFER Program, with its implications for the security of the campus community and for the sustained operation of the institution in the event of a major earthquake, will remain a top priority for the campus for many years to come. |
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