高层建筑损伤识别中的补偿算法  

COMPENSATION METHOD FOR DAMAGE DETECTION OF TALL BUILDINGS

作　　者：陈隽[1] 史凯 

机构地区：[1]同济大学,上海200092 [2]无锡化工研究设计院

出　　处：《振动与冲击》2002年第2期24-27,共4页Journal of Vibration and Shock

摘　　要：本文在已有研究工作的基础上 ,提出了处理激励测量信息不完备情况下的补偿算法。此方法主要针对高层建筑动力检测中强迫激励的情况 ,是一种基于时域的识别方法。该方法实际上是利用客观工程实际中结构系统激励所具有的物理特征作为识别计算的辅助条件 ,来解决测量信息的不完备性问题。A new time domain identification method named as Compensation Method is proposed in the paper on the base of some primary research work.The new method aims to solve the structural parameter identification problem when the input information is incomplete,which is a commonly encountered problem in the damage detection of tall buildings.The innovative idea of the new method is that it takes the physical or mechanical information of the exicitation to the system as an additive condition in the parameter identification process.The proposed method has been evaluated and validated through two numerical examples,i.e.a simple dynamic system and a 20_story tall building.Noise_free measurements as well as noise_included measurements are considered in the numerical examples to verify the robustness of the proposed algorithm.Numerical studies show that the proposed method has several favorable performances such as high accuracy,adaptability and insensitivity to initial parameters estimation.

关 键 词：损伤识别 系统识别 复合反演 高层建筑 结构参数 补偿算法 结构损伤 结构检测 

分 类 号：TU978[建筑科学—建筑技术科学] TU311.3