考虑液晃效应的大型储罐有限元抗震分析方法  

FEM Seismic Analysis Method of Large Storage Tank in Consideration of Liquid Sloshing

作　　者：杜坤 初起宝[2] 梁明邦 石作维 

机构地区：[1]中广核工程设计有限公司,广东深圳518172 [2]环境保护部核与辐射安全中心,北京100082

出　　处：《核动力工程》2016年第6期58-61,共4页Nuclear Power Engineering

摘　　要：在美国土木工程协会规范ASCE-4-98的基础上,扩展建立了大型储罐三维有限元模型,采用质量-弹簧模型模拟液晃效应,应用ANSYS软件进行抗震分析。有限元计算的液晃频率与ASCE-4-98规范公式计算结果一致,验证了有限元模型的合理性和可用性。该方法可直观地从三维模型上获取大型储罐在地震下的应力分布,是一种简单适用的工程处理方法。Based on ASCE-4-98, the 3D FEM model of large storage tank was established. The effect of liquid sloshing was simulated by the mass-spring model. The seismic analysis was processed by ANSYS software. The FEM calculated frequency of liquid sloshing was identical to the formula result of ASCE-4-98, shown that the 3D FEM model is reasonable and usable. It is a simple and suitable engineering method, from which, the stress distribution of the storage tank can be obtained directly from the 3D FEM model.

关 键 词：储罐 液晃 质量-弹簧模型 抗震分析 ASCE-4-98 

分 类 号：TL364.2[核科学技术—核技术及应用]