Detection of post-earthquake damage inside a concrete arch dam using the electromechanical impedance method

被引：4
|
作者：
Zuo, Chunyuan [1 ]
Feng, Xin [2 ]
Fan, Zhe [3 ]
Zhang, Yu [4 ]
Zhou, Jing [2 ]
机构：
[1] Huaiyin Inst Technol, Coll Management & Engn, Jiangsu Smart Factory Engn Res Ctr, Huaian 223003, Peoples R China
[2] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116023, Peoples R China
[3] China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100038, Peoples R China
[4] Northeast Petr Univ, Dept Civil Engn & Architecture, Daqing 163318, Peoples R China
来源：
JOURNAL OF CIVIL STRUCTURAL HEALTH MONITORING | 2021年 / 11卷 / 01期
关键词：
Structural damage identification; Electromechanical impedance method; Concrete arch dam; Earthquake-induced damage; Shaking table tests; TRANSDUCERS; MODEL; PERFORMANCE; SENSORS;
D O I：
10.1007/s13349-020-00441-0
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The detection of post-earthquake damage inside concrete dams has recently attracted great interest in academia and industry. A novel electromechanical impedance (EMI) method using embedded EMI sensors (EMISs) is proposed in this paper to detect earthquake-induced damage within concrete dams. The basic concept of the proposed EMI method is to use high-frequency excitations to monitor local changes in the monitored dams caused by damage. Based on the effective impedance, a three-dimensional (3D) EMI model for embedded EMISs is proposed. Then, a new damage-sensitive feature factor is derived based on the proposed 3D EMI model. A high arch dam model with embedded EMISs is studied experimentally. Moreover, shaking table tests are conducted on the dam model. The proposed 3D EMI method is used to monitor the evolution of earthquake-induced damage inside the dam model. The experimental results demonstrate the efficiency and feasibility of the proposed EMI method for detecting earthquake-induced damage in concrete dams.
引用
收藏
页码：105 / 116
页数：12
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