摘要
以1台690m3拱顶储罐为研究对象,对GB 50341—2003《立式圆筒形钢制焊接油罐设计规范》和API 650 2005《Welded Steel Tanks for Oil Storage》中规定的4种型式的抗压环建立了拱顶储罐非线性有限元模型,采用罐底和地基材料接触单元的方法替代罐底和地基材料弹性杆单元法模拟罐底和地基材料的接触力,分析了不同抗压环结构的储罐弱顶性能规律,研究结果表明,a型抗压环弱顶系数达到2.096,弱顶效果最好。
Selecting a 690 m3 vertical vault-roof tank as the research object, the nonlinear finite element models of vertical vault-roof tanks were established, according to the four types of com- pression ring which are provided in GB 50341--2003 Vertical Cylindrical Steel Welded Oil Tank Design Specification and API 650 2005 Welded Steel Tanks for Oil Storage. Contact element method of tank bottom and foundation materials was adopted to replace elastic link element meth- od of tank bottom and foundation materials to simulate the contact force of tank bottom and foun- dation materials. The performance law of tank weak roof which adopt different top compression ring structure was analyzed and the results show that weak roof has the best effect when the coef- ficient of compression ring which is type a reaches 2. 096.
出处
《石油化工设备》
CAS
2012年第5期24-28,共5页
Petro-Chemical Equipment
基金
黑龙江省青年科学基金项目(QC2010068)
关键词
拱顶储罐
抗压环
弱顶
有限元
cone roof tank
compression ring
weak roof
finite element
