【摘要】 土体动力一维非线性本构关系是场地及地基动力响应、土工数值分析的关键。回顾和总结了国内外的发展状况及研究进展,对其分析方法、等幅循环荷载到不规则荷载的扩展及应用规则、试验阻尼比的等效、滞回曲线形状等核心问题进行剖析、评价和探讨,并对各种模型的优缺点进行了比较和讨论,着重介绍了最近研究结果。最后指出未来发展方向及有待进一步研究的问题。更多还原

【Abstract】 One-dimensional dynamic nonlinear constitutive relation of soil is the key to numerical method and dynamic response of site and foundation.Firstly,the development and research advancement are reviewed and summarized.Then,the central problemg,which are analysis methods,application rules from equal amplitude cyclic load process to irregular load,equivalent methods of test hysteretic damping,curve shapes of hysteretic constitutive etc.are analyzed.The advantages and disadvantages of the models are compared with each other,and the current research results are introduced especially.Finally,existing problems are pointed out and the problems,which need to be studied in future,are suggested.更多还原