混凝土结构缺陷识别的复杂度方法及ANSYS模拟

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.

Damage Diagnosis of Concrete Structures on Complexity and Calculation of Complexity via ANSYS Software

Based on the principle that the performance of concrete structural vibration will vary with the alteration 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 complexity value of the response points are obtained by applying complexity calculation method to analyze the symbol series produced by coarse graining processing. ANSYS software is utilized to simulate the concrete structures with deficiency. The complexity of concrete structures with deficiency is compared with that of structures of good conditions by employing the calculation 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.