Application of Performance-Based Seismic Design Method for Existing Onshore Structures

摘要

Japan's Fukushima nuclear power plant was struck by a massivemagnitude 9.0 earthquake which triggered a devastating tsunami on the11th March 2011. In general, the USD (Ultimate Strength Method) forstructure design can descript the capacity of elastic, but can not predictthe failure mechanism of structure. Therefore, the limit of USD inspiresus to study the Performance Base seismic design method and propose asimplified method and compared with a simple and realistic tsunamiloading of onshore structure. The tsunami forces used for seismicresistantdesign was studied and compared by literature review. Then,the Pushover Analysis Method and Capacity Spectrum Method arecombined to develop the guidelines of seismic and tsunami design foronshore structures. After that, a case study of wall pier which supportthe tsunami protection structure was carried out by the Performance-Based seismic design method with tsunami loading. The results showsthat the performance curve in seismic design can be derived and thetsunami force of the onshore structure can be compared which is thekey technology of the risk analysis and cost control for onshorestructures. This study also shows that we may apply EarthquakeEngineering techniques to improve Tsunami Resistant structures.