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首页> 外文会议>ASME(American Society of Mechanical Engineers) Pressure Vessels and Piping Conference vol.8: Seismic Engineering; 20050717-21; Denver,CO(US) >THE FORMULATIONS OF SHEAR FORCE AND OVERTURNING MOMENT OF THE LARGE-UPRIGHT-UNANCHORED INDUSTRIAL LIQUID STORAGE TANKS SUBJECTED TO HORIZONTAL GROUND EXCITATIONS
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THE FORMULATIONS OF SHEAR FORCE AND OVERTURNING MOMENT OF THE LARGE-UPRIGHT-UNANCHORED INDUSTRIAL LIQUID STORAGE TANKS SUBJECTED TO HORIZONTAL GROUND EXCITATIONS

机译：水平地面激励作用下的大立式超重工业液体储罐的剪切力公式和倾覆矩

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The dynamic response analysis is performed for the formulations of, shear force and overturning moment of the large-upright-unanchored industrial liquid storage tanks subjected to horizontal ground acceleration. As the tank is accelerated in the horizontal direction, it tends to uplift from its foundation, and hydrodynamic pressures on the tank wall vary with height in non-linear fashion. In this study, the distribution of hydrodynamic pressures and its center are directly correlated to formulate shear force and overturning moment. Initially, the equations of shear force and overturning moment derived by assuming hydrodynamic pressures exerted on tank wall vary in parabolic trend. Then derived equations are multiplied by dynamic coefficients, which are basically the function of peak ground acceleration, excitation frequency and the ratio of liquid's height to radius of tanks. Dynamic coefficients are formulated through the shake table experiment of the model tanks excited by computer generated ground motion. The equations proposed in this paper for base shear and overturning moment are only the function of total weight of tank, the ratio of liquid's height to radius, specific weight of liquid and dynamic coefficients for shear force and overturning moment. Therefore, proposed equations are very simple, efficient and easy to perform in calculating of shear forces and overturning moments of the large-upright industrial liquid storage tanks subjected to lateral earthquake loads. The results are verified with different codes (e.g. Eurocode8, API and AWWA-100...).
机译：对承受水平地面加速度的大型直立式工业液体储罐的剪切力和倾覆力矩公式进行动力响应分析。当水箱在水平方向上加速时，它倾向于从基础上抬升，并且水箱壁上的流体动力压力随高度以非线性方式变化。在这项研究中，流体动力压力的分布及其中心直接相关，以制定剪切力和倾覆力矩。最初，假设罐壁上的流体动力压力产生的剪力和倾覆力矩方程以抛物线趋势变化。然后，将得出的方程式乘以动态系数，该系数基本上是峰值地面加速度，激励频率和液体高度与罐半径之比的函数。通过计算机生成的地震动激励模型罐的振动台实验来制定动力系数。本文提出的基本剪力和倾覆力矩方程只是储罐总重量，液体高度与半径之比，液体比重以及剪切力和倾覆力矩的动态系数的函数。因此，所提出的方程非常简单，高效并且易于执行，以计算承受侧向地震载荷的大型立式工业液体储罐的剪切力和倾覆力矩。使用不同的代码（例如Eurocode8，API和AWWA-100 ...）验证结果。

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