[1]王祥建,万鹏,崔杰.基于复合反演算法的结构损伤识别及地震动反演研究[J].世界地震工程,2015,(03):114-121.
 WANG Xiangjian,WAN Peng,CUI Jie.Structural damage identification and ground motion inversion based on hybrid inversion algorithm[J].,2015,(03):114-121.
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基于复合反演算法的结构损伤识别及地震动反演研究
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《世界地震工程》[ISSN:/CN:]

卷:
期数:
2015年03期
页码:
114-121
栏目:
出版日期:
2015-09-10

文章信息/Info

Title:
Structural damage identification and ground motion inversion based on hybrid inversion algorithm
作者:
王祥建1 万鹏2 崔杰34
1. 中国地震局工程力学研究所, 中国地震局地震工程与工程振动重点试验室, 黑龙江 哈尔滨 150080;
2. 河北筑美工程设计有限公司, 河北 沧州 061000;
3. 广州大学 土木工程学院, 广东 广州 510006;
4. 广州大学 工程抗震研究中心, 广东 广州 510405
Author(s):
WANG Xiangjian1 WAN Peng2 CUI Jie34
1. Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;
2. Hebei Zhumei Engineering Design Co., Ltd., Cangzhou 061000, China;
3. Department of Civil Engineering, Guangzhou University, Guangzhou 510006, China;
4. Earthquake Engineering Research and Test Centre, Guangzhou University, Guangzhou 510405, China
关键词:
损伤识别地震动反演复合反演识别算法矩形窗法
Keywords:
damage identificationground motion inversionhybrid inversion methodrectangular window method
分类号:
P315.8
摘要:
针对输入激励信息未知、输出响应信息非完备的情况,进行了结构损伤识别算法研究。基于物理参数时域识别的复合反演算法,定义单元刚度参数变化率为损伤因子,并引入矩形窗方法剔除噪声异常数据,给出了时域内结构损伤识别复合反演算法(损伤识别和地震动反演)。以一个5层框架结构为例进行了数值仿真识别损伤,针对矩形窗长度、噪声水平不同等情况对比了识别结果(损伤识别精度、损伤位置确定)和收敛速度,并比较了反演的地震动与真实地震动时程曲线。研究表明,所提基于复合反演算法建立的结构损伤识别复合反演算法是非常有效的。
Abstract:
In this paper, structural damage identification algorithm was studied for the case with unknown input and incomplete output dynamic response information. Based on the hybrid inversion method for physical parameter identification in time domain, the change rate of element stiffness being defined as the damage factor, and the rectangular window method being introduced for removing the abnormal noise data, a hybrid inversion (damage detection and ground motion inversion) of structural damage indentification in time domain was proposed. A numerical simulation of 5-stories frame model was conducted. Considering the different lengths of rectangular window and the different noise levels, the identification result (damage identification accuracy and damage location) and convergence rate were compared. Simultaneously, the time-histories of ground motion inversion are compared with those of the real ground motion. The results show that the hybrid inversion algorithm established in the paper for structural damage identification and ground motion inversion is very effective.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2014-10-21;改回日期:2015-5-26。
基金项目:国家自然科学基金(青年科学基金)项目(编号:51208478)资助;中国地震局工程力学研究所基本科研业务费专项资助(编号:2013B07)
作者简介:王祥建(1977-),男,博士,副研究员,主要从事结构损伤识别研究和生命线工程抗震研究.E-mail:wang.xiangjian@163.com
更新日期/Last Update: 1900-01-01