Requirements and Verification Methodology for the Design Performance of Tsunami-Hinan Buildings (Temporary Tsunami Refuge Building)
Shinji Yagi* and Yuji Hasemi**
*AXS SATOW Inc., 2-10-12 AXS Bldg. Yokoami, Sumida-ku, Tokyo 130-0015, Japan
**Department of Architecture, Waseda University, 3-4-1 55th Bldg. Ookubo, Shinjuku-ku, Tokyo 169-8555, Japan
With the increasing possibility of large offshore earthquakes in Japan, the government is considering whether middle to high-rise structures could be used as temporary tsunami refuge buildings. This report presents a recent study on refuge-process modeling within such buildings and their utility seen through parametric analysis. Analysis showed a strong dependence of refuge effectiveness on the time when evacuation start and building occupancies. Design guidelines are proposed to improve evacuation performance for different types of occupancy.
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