Earthquake Analysis and Design Issue of an Offshore Gravity Based LNG Terminal in High Seismic Environment

E001 Earthquake Analysis and Design Issue of an Offshore Gravity Based LNG Terminal in High Seismic Environment F.F. Tajirian* (Chevron Energy and Technology Company) SUMMARY This paper addresses several earthquake design and analysis challenges encountered during the preliminary design phase of a large offshore gravity based (GBS) LNG storage and regasification facility. The structure was to be located in a zone of high earthquake activity. The concrete structure was rectangular in plan and measured 160 m by 103 m in approximately 25 m of water. The procedures used to perform soil-structure interaction (SSI)analysis were summarized. A new procedure using distributed