Vibration based seismic damage identification procedure for a steel concentrically braced frame structure

Daniel McCrum, Andrea Staino

    Research output: Contribution to conferencePaper

    Abstract

    An approach for seismic damage identification of a single-storey steel concentrically braced frame (CBF) structure is presented through filtering and double integration of a recorded acceleration signal. A band-pass filter removes noise from the acceleration signal followed by baseline correction being used to reduce the drift in velocity and displacement during numerical integration. The pre-processing achieves reliable numerical integration that predicts the displacement response accurately when compared to the measured lateral in-plane displacement of the CBF structure. The lateral displacement of the CBF structure is used to infer buckling and yielding of bracing members through seismic tests. The level of interstorey drift of the CBF during a seismic excitation allows the yield and buckling of the bracing members to be identified and indirectly detects damage based on exceedance of calculated displacement limits. The calculated buckling and yielding displacement threshold limits used to identify damage are demonstrated to accurately identify initial buckling and yielding in the bracing members.
    Original languageEnglish
    Publication statusPublished - 01 Sep 2014
    EventCivil Engineering Research in Ireland Conference (CERAI) - QUB, Belfast, United Kingdom
    Duration: 28 Aug 201429 Aug 2014

    Conference

    ConferenceCivil Engineering Research in Ireland Conference (CERAI)
    CountryUnited Kingdom
    CityBelfast
    Period28/08/201429/08/2014

    Fingerprint

    Buckling
    Steel
    Bandpass filters
    Processing

    Cite this

    McCrum, D., & Staino, A. (2014). Vibration based seismic damage identification procedure for a steel concentrically braced frame structure. Paper presented at Civil Engineering Research in Ireland Conference (CERAI), Belfast, United Kingdom.
    McCrum, Daniel ; Staino, Andrea. / Vibration based seismic damage identification procedure for a steel concentrically braced frame structure. Paper presented at Civil Engineering Research in Ireland Conference (CERAI), Belfast, United Kingdom.
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    abstract = "An approach for seismic damage identification of a single-storey steel concentrically braced frame (CBF) structure is presented through filtering and double integration of a recorded acceleration signal. A band-pass filter removes noise from the acceleration signal followed by baseline correction being used to reduce the drift in velocity and displacement during numerical integration. The pre-processing achieves reliable numerical integration that predicts the displacement response accurately when compared to the measured lateral in-plane displacement of the CBF structure. The lateral displacement of the CBF structure is used to infer buckling and yielding of bracing members through seismic tests. The level of interstorey drift of the CBF during a seismic excitation allows the yield and buckling of the bracing members to be identified and indirectly detects damage based on exceedance of calculated displacement limits. The calculated buckling and yielding displacement threshold limits used to identify damage are demonstrated to accurately identify initial buckling and yielding in the bracing members.",
    author = "Daniel McCrum and Andrea Staino",
    year = "2014",
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    language = "English",
    note = "Civil Engineering Research in Ireland Conference (CERAI) ; Conference date: 28-08-2014 Through 29-08-2014",

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    McCrum, D & Staino, A 2014, 'Vibration based seismic damage identification procedure for a steel concentrically braced frame structure', Paper presented at Civil Engineering Research in Ireland Conference (CERAI), Belfast, United Kingdom, 28/08/2014 - 29/08/2014.

    Vibration based seismic damage identification procedure for a steel concentrically braced frame structure. / McCrum, Daniel; Staino, Andrea.

    2014. Paper presented at Civil Engineering Research in Ireland Conference (CERAI), Belfast, United Kingdom.

    Research output: Contribution to conferencePaper

    TY - CONF

    T1 - Vibration based seismic damage identification procedure for a steel concentrically braced frame structure

    AU - McCrum, Daniel

    AU - Staino, Andrea

    PY - 2014/9/1

    Y1 - 2014/9/1

    N2 - An approach for seismic damage identification of a single-storey steel concentrically braced frame (CBF) structure is presented through filtering and double integration of a recorded acceleration signal. A band-pass filter removes noise from the acceleration signal followed by baseline correction being used to reduce the drift in velocity and displacement during numerical integration. The pre-processing achieves reliable numerical integration that predicts the displacement response accurately when compared to the measured lateral in-plane displacement of the CBF structure. The lateral displacement of the CBF structure is used to infer buckling and yielding of bracing members through seismic tests. The level of interstorey drift of the CBF during a seismic excitation allows the yield and buckling of the bracing members to be identified and indirectly detects damage based on exceedance of calculated displacement limits. The calculated buckling and yielding displacement threshold limits used to identify damage are demonstrated to accurately identify initial buckling and yielding in the bracing members.

    AB - An approach for seismic damage identification of a single-storey steel concentrically braced frame (CBF) structure is presented through filtering and double integration of a recorded acceleration signal. A band-pass filter removes noise from the acceleration signal followed by baseline correction being used to reduce the drift in velocity and displacement during numerical integration. The pre-processing achieves reliable numerical integration that predicts the displacement response accurately when compared to the measured lateral in-plane displacement of the CBF structure. The lateral displacement of the CBF structure is used to infer buckling and yielding of bracing members through seismic tests. The level of interstorey drift of the CBF during a seismic excitation allows the yield and buckling of the bracing members to be identified and indirectly detects damage based on exceedance of calculated displacement limits. The calculated buckling and yielding displacement threshold limits used to identify damage are demonstrated to accurately identify initial buckling and yielding in the bracing members.

    M3 - Paper

    ER -

    McCrum D, Staino A. Vibration based seismic damage identification procedure for a steel concentrically braced frame structure. 2014. Paper presented at Civil Engineering Research in Ireland Conference (CERAI), Belfast, United Kingdom.