【摘要】 本文将考虑地基辐射阻尼作用和坝体接缝非线性动力接触作用的大坝-地基体系地震波动反应分析方法用于龙开口碾压混凝土重力坝的整体三维非线性有限元地震时程反应分析,揭示横河向地震输入对重力坝地震反应的影响,研究比较碾压混凝土重力坝分仓横缝采取灌浆或设键槽的不同措施对加强大坝抗震性能的作用。更多还原

【Abstract】 This paper studies the seismic response of a full-monolith RCC system by adopting a 3D nonlinear FEM.In this model,all the dam monoliths are modeled with consideration of the nonlinear joint contact between the monoliths and the radiation damping of infinite foundation.The results show that the seismic capacity of RCC gravity dam can be enhanced through grouting and shear-key between contraction joints.更多还原