Abstract
In recent years gas holders have become larger in capacity and higher in pressure in order to use the gases which are accompanied in the steel/manufacturing processes effectively. So the strength under seismic loads has been one of the key probrems of the structure, which are constructed on soft ground.
This paper shows the structural verification under seismic loads by taking the interaction of soil and structure into consideration.
The following conclusions are obtained.
(1) The maximum axial force of stanchions during the dynamic response which interacts the soil foundation is estimated to be smaller than that of the static acceleration method stipulated by normal rules.
(2) A small plastic deformation which may occur at the base of the stanchions under large seismic loads reduces the dynamic response of the whole structure and keeps a safety margin of structural endurance.
