摘要
结合高拱坝动力研究中的实际问题，推导了考虑局部非线性弹性及非比例阻尼的逐步积分公式。通过对实际拱坝的计算，表明了本公式效率高，可靠性好。同时结果说明，在高拱坝-地基动力相互作用体系中，施工缝的影响是十分显著的。
Based on the practical problems existed in dynamic research on arch dams, a step-by-step integral formula is derived in consideration of the nonlinear elasticity and nonproportional damping. Through the calculation of an actual ed dam, it is shown that this kind of step-by-step integral formula for local nonlinear dynamic analysis is effective and efficient. Sevenal Conclusions of the influence of the constrution joints on dam-rock dynamic system which demonstrate the significant difference effected by considering the contraction joints are drawn.
出处
《土木工程学报》
EI
CSCD
北大核心
1999年第1期66-70,共5页
China Civil Engineering Journal
基金
国家自然科学基金
关键词
非线性有限元
地震分析
横缝
拱坝
nonlinear finite element, earthquake response, transverse joint, arch dam
