圆环耗能器控制浮放储罐地震响应

针对立式钢制储罐地震响应及提离效应问题,考虑基础与土壤的相互作用,采用圆环耗能器进行减小地震响应、降低提离的控制研究,建立了控制体系的力学分析模型,并给出了运动分析方程。对实际应用的浮顶罐进行了数值仿真计算,所采用的控制体系具有较好的减震效果;对比了储液容器液固耦合质量无控与有控时的位移、绝对加速度和基底剪力和提离转角的时程曲线;探讨了圆环套数对减震效果的影响。数值计算表明:圆环耗能器能够有效的控制地震响应及提离。

Control Seismic Response of Storage Tank with Circular-ring Energy Dissipator

The paper aimed at seismic response and uplift of vertical storage tank,the reaction of base and soil are considered,damping and costing-energy researches are processed which circular-ring energy dissipater is adopted.The simple mechanical model of control system is established,and movement equations are given.El Centro is input,simulation calculations are made on floating-peak tank with circular-ring energy dissipater.The research indicates this control system is effect to apply to decrease earthquake response.History time curves of displacement,absolute acceleration,shearing force and uplift angle are contrasted with and without control.The effect of sets of cirque costing-energy is discussed.Numerical value show: circular-ring energy dissipater can control seismic response and uplift.