Abstract
On a LNG base, the stability of the structure in case of earthquake is indispensable to reservation of a stable supply and safe operation. Of these, the preservation of bearing performance of “foundation” is one of the most significant at both the ensuring the safety and maintenance of LNG tank especially in the LNG tank foundation classified in large-scale important structure. In this time, in-situ lateral loading test using practical tank foundation was conducted at the opportunity of demolishing LNG tank after 40 years of service. And 3 dimensional elasto-plastic FEM analysis of the test is conducted. From the both results, bearing capacity and corruption level of practical LNG tank foundation were investigated, and the behavior specific to the large-scale group pile foundation was observed.
