立式圆柱型弹性储油罐地震敏度分析  

SENSITIVITY ANALYSIS OF SEISM ABOUT THE OIL STORAGE TANK OF STAND-UP CYLINDER

作　　者：廖柯熹[1] 王元[2] 张淮鑫[2] 

机构地区：[1]西南石油学院研究生院,四川南充637001 [2]西南石油学院

出　　处：《西南石油学院学报》2001年第1期56-59,共4页Journal of Southwest Petroleum Institute

摘　　要：地震波引起的储油罐地震敏度反应包括动水压力、动水剪力与倾覆力矩以及液面晃动 ,这些地震敏度反应使储油罐受到各种形式的破坏。高径比大的细长型储油罐因罐壁弹性变形的存在而影响着其地震敏度反应的大小 ,为了克服现有储油罐抗震设计中未考虑细长型弹性储油罐罐壁变形的不足 ,在分析弹性储油罐固有振动特性的基础上 ,运用罐—液系统耦联振动理论建立了弹性储油罐的罐—液振动模型。利用该模型对弹性储油罐地震敏度反应的对流分量、脉冲分量以及储液晃动高度进行了分析 。The seismic wave will cause the hydrodynamic wall pressure, hydrodynamic shear force, hydrodynamic moments and the liquid surface sloshing in the oil storage tank. These tanks usually were damaged by the various seismic responses. With high ratio of the height to radius, the flexible deformation of tall, slender tanks works on its seismic responses. The flexible deformation of the tall-slender tank is not considered in current anti-seismic design standards. Avoiding this shortcoming, based on the analysis of tall, slender tank's nature structure characteristics, a coupling vibration model of tall-slender tanks is put forward. The model discussed the impulsive and convective component of flexible tanks' seismic sensitivity. Finally, the seismic-sensitivity responses of the example for flexible tanks were compared with those of the rigid.

关 键 词：立式 圆柱型 地震波 弹性 变形 地震敏度 振动 模型 

分 类 号：TE972.02[石油与天然气工程—石油机械设备]