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应用有限元方法 ,建立结构柔度矩阵 ,在柔度阵法识别结构损伤的基础上 ,构造损伤识别的二次规划模型 ,提出了一种悬臂弯剪型建筑结构的损伤识别方法。通过一个悬臂弯剪型结构损伤识别的数值模拟表明 ,只需低阶模态参数就可有效地识别结构损伤。
The finite element method is used to establish the structural flexibility matrix. Based on the flexibility matrix method to identify the structural damage, a quadratic programming model of damage identification is constructed. A damage identification method of the cantilever bending - type building structure is proposed. The numerical simulation of damage identification using a cantilever beam shear structure shows that structural damage can be effectively identified with only low-order modal parameters.