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本文采用显式有限元结合人工透谢边界进行波动分析 ,配合动接触力模型考虑纵缝接触非线性问题 ,用静动组合方法考虑静动荷载的耦合作用 ,形成新的重力坝地震反应分析的计算体系 ,对一典型的含纵缝重力坝进行了地震反应分析 .在考虑地基辐射阻尼的条件下得出了纵缝的存在及纵缝初始宽度、填充情况、缝面摩擦系数等因素对坝体地震反应影响的一系列结论
In this paper, using the explicit finite element method combined with the artificial permeability boundary to analyze the wave, the dynamic contact force model is used to consider the nonlinear problem of the longitudinal seam contact. The static and dynamic combined method is used to consider the coupling effect of the static and dynamic loads to form a new gravity dam seismic response analysis The seismic response analysis of a typical gravity dam with longitudinal slits is carried out.Under the consideration of the radiation damping of the foundation, the existence of longitudinal slits and the initial width of the longitudinal slits, the filling conditions and the coefficient of friction of the slits, A series of conclusions about the influence of earthquake response