摘要
本文论述了三种不同的罐底模型给罐壁应力计算带来的影响。指出不同的罐底模型对于求解罐底与罐壁连接处的边缘剪力Q_0和弯矩M_0值有较大的影响;但对罐壁最大应力值的影响并不大。计算结果也表明:基于弹性半空间解范畴的力学所法和变点法罐底模型较适于砂基或类似的基础处理;而分离弹簧罐底模型更适宜于钢筋混凝土环梁基础。文中述及了根据不同的罐基情况,采用相应的罐底模型以求算较符合实际的Q_0,M_0值的必要性。
This paper presents the effect of three models for large tank foundation upon the stress calculation of tank shell. The calculated results show that the different models for tank foundation greatly influence the shear edge force Q_0 and the bending moment M_0, but not so much the value of the maximum stress in the shell Two methods on elastic half space solution agree with sand or similar sand foundation. However, the model of separate spring foundation is more suitable for the foundation supported by a concrete ring wall The necessity that Q_0 and M_0 should be calculated more exactly by selecting appropriate models is also stated in this paper.
出处
《西南石油学院学报》
CSCD
1991年第2期97-110,共14页
Journal of Southwest Petroleum Institute
关键词
油气罐
应力分析
计算
Tank bottom
Tank foundation
Stress analysis
