摘要
应用ANSYS有限元分析软件建立了5×104m3原油储罐的有限元分析模型,其中采用接触单元模拟罐底与地基间的相互作用。通过对该储罐进行水压试验工况下的强度分析,发现最大沉降梯度发生在混凝土环墙附近区域,并在底板边缘附近引起了较大的径向和环向的应力,而罐壁最大环向应力出现在罐壁中下部,并且沿轴向的应力变化和液柱静压力已不存在线性关系。
Finite element analysis with ANSYS software was performed on a 50000 m^3 crude oil tank under hydraulic test loading. Contact elements were used to simulate the interaction between tank bottom plate and its foundation. It was found that the largest sink gradient took place in the edge area of concrete foundation,producing large radial and hoop stresses in the corresponding area of bottom plate. The largest hoop stress,however,was located at middle and low part of tank shell,and axial change of hoop stress was no longer proportional to the hydraulic pressure.
出处
《石油化工设备》
CAS
2008年第6期49-52,共4页
Petro-Chemical Equipment
关键词
储罐
立式
接触模拟
有限元分析
tank
vertical
contact simulation
finite element analysis
