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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：在这项研究中，基于压电的主动感应系统被用于对承受地震载荷的单舱，两层钢筋混凝土（RC）空间框架结构进行结构健康监测（SHM）。 RC框架中安装了基于压电的致动器和传感器，并在摇床上测试了各种强度的地面激励。 RC框架中的嵌入式传感器用于在测试过程中诊断被测RC框架的健康状况，并采用基于能量的损坏指数来量化损坏的严重程度。测试结果表明，基于压电的SHM主动传感方法揭示了地震激发后被测RC框架的损坏严重程度。提出了一种简单而精确的模拟被测钢筋混凝土空间框架动力响应的方法。它基于弯矩曲率法并确定了基本频率。将计算出的结构部件的位移时间历史和最大延展性要求与在振动台试验中测得的结果进行了比较，并获得了很好的一致性。 （c）2019美国土木工程师学会。

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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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