对土木工程结构的分析模型,在传感器不完整布置的情况下,推导基于不完整频响函数的“定性-定位-定量”的损伤识别方法.首先,利用不完备的频响函数图形的偏移程度进行损伤的定性判定；然后,建立损伤识别指标对损伤位置进行识别；最后,推导损伤定量计算方法,对损伤程度进行评估.仿真结果表明,本文提出损伤识别3阶段方法,对结构损伤探测的评估能得到比较满意的结果.%Based on the sensor is incomplete arrangement in the model of civil engineering structures. Derived to be incomplete frequency response function and the proposed damage identification method. This method is a three-stage; "diagnosis-localization-quantification" . The first of all, using the frequency response function the offset level of graphics to diagnosis of structural damage. Then,we localize the damage locations by using damage index of different nodes or degree-of-freedoms, which can be obtained from measured incomplete frequency response functions. The end, compression the number of measured elements to achieve the overall integrity of the information,a damage quantification formula is then deduced from the reduced degree-of-freedom system to calculate damage extents. The simulation results demonstrate that the method can achieve damage identification and the accuracy of localization and quantification can be satisfied.
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