混凝土结构缺陷识别的复杂度方法及ANSYS模拟.pdfVIP

第23卷 第6期 黄 石 理 工 学 院 学 报 Vo1．23 No．6 2007年12月 JOURNAL OF HUANGSHI INSTITUTE OF TECHNOLOGY Dec 2Oo7 文章编号：1008—8245(2007)06—0068—03 混凝土结构缺陷识别的复杂度方法及ANSYS模拟 吕高贵 (江苏大学理学院，江苏镇江212013) 摘 要：根据复杂度的物理意义，针对带有缺陷结构振动状态的复杂性及发生变化的特征，提出用复杂度作 为识别结构振动状态发生突变的标志量。提取结构上的测点的响应时间序列并进行粗粒化，利用复杂度方法 分析粗粒化所产生的符号序列，得到响应点的复杂度值。利用有限元软件ANSYS模拟带有缺陷的混凝图结 构，按此计算复杂度的方法比较有缺陷处的复杂度与结构完好处的复杂度。计算结果表明，有缺陷处的复杂 度明显大于完好处的复杂度。因此，用复杂度方法识别混凝土结构的缺陷是可行的。 关键词：复杂度；识别；混凝土结构 中图分类号：TU311．41 文献标识码：A Damage Diagnosis of Concrete Structures on Complexity and Calculation of Complexity via ANSYS Software Lu Gaogui (Faculty of Science，Jiangsu University，Zhenjiang Jiangsu 212013) Abstract：Based on the principle that the performance of concrete structural vibration will vary with the aheradon of structure state，a method for structural damage detection using complexity is developed in this paper．The response time series of the measuring points on the structure are picked up and undergo coarse graining processing．The com- plexity value of the response points are obtained by applying complexity cMculation me~od to analyze the symbol se- ries produced by coarse graining processing．ANSYS software is utilized to simulate the concrete structures with deft- eiency．The complexity of concrete structures with deficiency is comp~ed with that of structures of good conditions by employins the eMculation method of complexity put forward in this paper．The result shows that complexity in the damage zone is bigger than that in fine zone,．The research shows the method is effective in the diagnosis of concrete structures． Key words：complexity；diagnosis；concrete structure 混凝土结构在使用过程中，受环境腐蚀、运行