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首页> 外文期刊>Journal of aerospace engineering >Seismic Health Monitoring of a Space Reinforced Concrete Frame Structure Using Piezoceramic-Based Sensors
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Seismic Health Monitoring of a Space Reinforced Concrete Frame Structure Using Piezoceramic-Based Sensors

机译：基于压电陶瓷传感器的空间钢筋混凝土框架结构的地震健康监测

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摘要

In this study, a piezoelectric-based active sensing system was used to conduct the structural health monitoring (SHM) of a one-bay, two-story reinforced concrete (RC) space frame structure subjected to earthquake loadings. The RC frame in which were installed piezoelectric-based actuators and sensors was tested on a shaking table with ground excitation of various intensities. The embedded sensors in the RC frame were used to diagnose the health status of the tested RC frame during the tests, and an energy-base damage index was adopted to quantify the severity of the damage. The test results indicate that the piezoelectric-based active sensing method for SHM revealed the severity of damage of the tested RC frame after earthquake excitations. A simplified and accurate method for simulating the dynamic responses of the tested RC space frame is presented; it was based on the moment-curvature method and identified fundamental frequencies. The calculated displacement time histories and maximum ductility demands of the structural members were compared with those measured in the shake table test, and excellent agreement was achieved. (c) 2019 American Society of Civil Engineers.
机译：在该研究中，使用压电的有源传感系统来进行经过发生地震载荷的单架，两层钢筋混凝土（RC）空间框架结构的结构健康监测（SHM）。在具有地面激发的各种强度的振动桌上测试了其中安装压电基致动器和传感器的RC帧。 RC帧中的嵌入式传感器用于诊断测试期间测试的RC帧的健康状态，采用了能量基损伤指数来量化损害的严重程度。测试结果表明，SHM的基于压电的活性感测方法显示出地震激发后测试RC帧的损伤严重程度。提出了一种简化和准确的方法，用于模拟测试的RC空间帧的动态响应;它基于片段曲率法和识别的基本频率。将计算出的位移时间历史和结构构件的最大延展性需求与在摇动台测试中测量的那些进行比较，并且实现了良好的一致性。 （c）2019年美国土木工程学会。

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  • 来源
    《Journal of aerospace engineering》 |2019年第3期|04019015.1-04019015.8|共8页
  • 作者

    Liao Wen-I; Chiu Chien-Kuo;

  • 作者单位

    Natl Taipei Univ Technol Dept Civil Engn 1 Sect 3 Chung Hsiao E Rd Taipei 10608 Taiwan;

    Natl Taiwan Univ Sci & Technol Dept Civil & Construct Engn 43 Sect 4 Keelung Rd Taipei 10607 Taiwan;

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