The elephant foot bulging deformation of rigid walls of liquid-storage tanks under horizontal and vertical seismic ground motions is analyzed by using the finite element model involving fluid sloshing and tank bottom uplift with ANSYS.
摘要基于ANSYS软件建立了考虑液体晃动和罐底提离立式储液罐有限元模型,分别进行了水平地震和竖向地震作用下罐壁「象足」变形分析。
tank bottom emulsion
罐底乳状液
tank bottom correction factor
罐底校正系数
tank bottom chime
罐底凸边
The elephant foot bulging deformation develops with the increasing stress of the rigid wall, which is caused by the uplift of the tank bottom and the impaction between the tank bottom and the foundation.
因罐底提离导致的罐底与基础反复撞击加大了作用在罐壁上的应力,使罐壁底部「象足」变形不断发展,最终导致罐壁撕裂。