水工混凝土结构损伤断裂研究

Research on the damage and crack of water concrete structures

混凝土结构的断裂破坏是混凝土中裂缝累积损伤的结果。由于混凝土材料性能和作用荷载等因素的随机性,混凝土结构裂缝的扩展过程也表现出随机特征。本文应用马尔柯夫随机过程模型实现了对这一过程的概率分析,并给出了状态转移概率矩阵的确定方法,文末结合简单算例说明了该方法的具体应用。

The crack and wreck of watet concrete structures is the result of inside damage and its accumulation.Because of the randomicity of materials and loads,the expanding process of cracks in the concrete structures is also stochastic.The Markov model is applied to analyze the probability of the changing process.This paper has discussed how to establish the transfer matrix of breakage conditions in detail and gives an example briefly in the end.