Abstract

AbstractA tsunami is a series of great waves primarily caused by a major subduction-zone earthquake with large-scale displacement of the sea floor or by initiation of submarine landslides. Many coastal areas in the western United States are subject to tsunami hazard that is infrequent but potentially extremely destructive. The public safety risk has been only partially mitigated through warning and preparedness of evacuation; there are many coastal communities in the states of Alaska, Washington, Oregon, California, and Hawaii where there is insufficient time for complete evacuation, and places of higher elevation and/or taller structures could provide life safety. Community disaster resilience would also require that critical and essential facilities provide structural resistance to collapse. Towards that goal, the Tsunami Loads and Effects Subcommittee of the ASCE/Structural Engineering Institute (ASCE/SEI) 7 Standards Committee has developed a new Chapter 6 with design requirements for tsunami loads an...

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