摘要
Concrete is considered as an elastic body when subjected to compressive stress butas a brittle body when subjected to tensile stress. That is, after the elastic extremum it cannotcontinue to bear the stress. Based on this.'cracked' physical model, for stochastic extemalwind loads, nonlinear stochastic constitutive equations have been established. To solve equations of nonlinear stochastic vibration, an iterative statistic linearization method (ISLM) hasbeen developedb. Some statistic characteristics were foundd out.
在本文中，当混凝土材料受压时，认为是弹性体；当它受拉时，认为是脆性体，即超出弹性体极限后不再具有承载能力．基于这种混凝土的断裂物理模型，对于随机风载荷外载，建立了非线性随机本构方程．为了求解这类非线性的随机动力方程，文中发展了一种迭代统计线性化的方法．同时，给出了一系列的统计特征结果．
基金
洪堡基金
留学回国人员科研资助
