摘要
本文引入了用于研究结构与地基非线性动力相互作用时,对其接触面进行模型化的由层状弹塑性材料构成的有限薄层连接元法。该方法通过薄层单元材料在强荷载作用下的加工硬化或软化过程,较为有效地模拟了基础与地基间的接触、滑移或提离等复杂的相互作用效应。文中给出了利用薄层连接元与有限元相结合的方法,研究在地震荷载及空气冲击波荷载作用下高层建筑结构与地基间的非线性动力相互作用的数值分析结果。
A thin layer joint finite element is introduced for modelling of the interfaces between structure and soil in the analysis of nonlinear dynamic interaction.Special attention is focused on the contact, sliding and separation of the foundation from the ground soil by strain hardening and softening of joint element material. Numerical results of nonlinear interaction between soil and high-rise building subjected to a strong earthquake and an impulsive loading are presented by the combined method of general finite element and thin layer joint finite element.
出处
《地震工程与工程振动》
CSCD
北大核心
1990年第3期97-107,共11页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金
