钢筋混凝土矩形贮液结构的液-固耦合振动  

Liquid-solid coupling vibration of reinforced concrete rectangular liquid-storage tanks

作　　者：程选生[1] 

机构地区：[1]兰州理工大学土木工程学院,甘肃兰州730050

出　　处：《煤炭学报》2009年第3期340-344,共5页Journal of China Coal Society

基　　金：甘肃省建设厅科技攻关项目(JK2008-28);甘肃省教育厅科技攻关项目(0803-10);兰州理工大学博士基金资助项目(SB04200802);兰州理工大学优秀青年教师培养计划资助项目(Q200809)

摘　　要：针对微幅振动的理想液体,根据钢筋混凝土矩形贮液结构的液-固耦合振动模型和数理方程理论,推导了结构内液体的速度势函数.通过能量原理推导了钢筋混凝土矩形贮液结构液-固耦合振动频率的计算公式.为方便工程应用,给出了带有弹性顶盖的钢筋混凝土矩形贮液结构液-固耦合振动基本频率的计算公式.结合数值算例,讨论了混凝土弹性模量、液体密度、顶盖的相对厚度、液体高度、长宽比对钢筋混凝土矩形贮液结构液-固耦合振动基本频率的影响.Aiming at the ideal liquid of micro-breadth vibration, the velocity potential function was derived in reinforced concrete rectangular liquid-storage tanks （RCRLTF） according to the liquid-solid coupling oscillation model and the mathematical physics equation theory. Using the energy principle, the liquid-solid coupling vibration frequency of the RCRLTT was obtained. For the sake of engineering application, the liquid-solid coupling sloshing basic frequency of the RCRLTF with reinforced concrete roof was given. And the influences of concrete elastic module and liquid density and relative thickness and liquid height and length-breadth ratio on liquid-solid coupling sloshing basic frequency of the RCRLTT were discussed through numerical examples.

关 键 词：钢筋混凝土 矩形贮液结构 液-固耦合振动 弹性顸板 

分 类 号：TU375[建筑科学—结构工程]