常压储罐罐顶结构力学性能分析  

Mechanical Performance Analysis of Atmospheric Tank Roof Structure

作　　者：杜家超 曲建军 都亮[1] 赵彦修[1] 赵世佳[1] Du Jiachao;Qu Jianjun;Du Liang;Zhao Yanxiu;Zhao Shijia(China Special Equipment Inspection and Research Institute,Beijing 100029;Sinochem Energy Logistics Co.,Ltd,Beijing 100031)

机构地区：[1]中国特种设备检测研究院,北京100029 [2]中化能源物流有限公司,北京100031

出　　处：《中国特种设备安全》2021年第9期23-26,共4页China Special Equipment Safety

基　　金：国家市场监督管理总局科技计划项目“考虑初始几何缺陷的大型带压储罐稳定性分析研究”(项目号2017QK177)。

摘　　要：立式圆筒形储罐带肋拱形顶板为自支承式结构,工程中的失稳现场多发于该类结构。通过对某炼化厂不同规格储罐的带肋顶板建立有限元数值模型,分别进行线性静力分析、特征值屈曲分析和非线性屈曲分析,结合数值仿真结果,分析研究带肋顶板的强度和稳定性等力学性能,并从设计、检验和运行维护角度给出相关建议。分析结果表明,不同尺寸储罐带肋拱形顶板结构受力最大位置均出现在顶板边缘附近,设计许用载荷作用下罐顶板处于低应力状态。随着罐顶结构尺寸的增加,罐顶稳定性问题成为结构失效的主要考虑因素。The ribbed arch roof of vertical cylindrical storage tank is a self-supporting structure,and the instability site often occurs in this kind of structure.Through the establishment of finite element numerical model for ribbed roof of tanks of different specifications in a refinery,linear static analysis,eigenvalue buckling analysis and nonlinear buckling analysis are carried out respectively.Combined with the numerical simulation results,the strength and stability of ribbed roof are analyzed and studied,and relevant suggestions are given from the perspective of design,inspection and tank operation and maintenance.

关 键 词：立式圆柱形储罐 带肋拱顶 有限元分析 稳定性分析 

分 类 号：X924[环境科学与工程—安全科学]