@inproceedings{0bd409d4541046ce8483ec5cf58b9878,
title = "Identifying the modal parameters of structure from Seismic Response in time-frequency domain",
abstract = "This work presents the use of a short time Fourier transform to determine the natural frequencies, damping ratios, and mode shapes of a structure from its free vibration or earthquake response data. The short time Fourier transform is applied to the measured acceleration responses of a structural system, and to reconstruct the autoregressive with exogenous input (ARX) model in time-frequency domain. The accuracy of this procedure is numerically confirmed; the effects of the length of frequency band and noise on the ability to accurately estimate the dynamic characteristics are also investigated. The feasibility of the present procedure to elucidate real structures is demonstrated through processing the measured responses of steel frames in shaking table tests.",
author = "Su, {W. C.} and Chiung-Shiann Huang and Liu, {C. Y.}",
year = "2015",
month = jan,
day = "1",
language = "English",
isbn = "9781138001206",
series = "Life-Cycle of Structural Systems: Design, Assessment, Maintenance and Management - Proceedings of the 4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014",
publisher = "CRC Press/Balkema",
pages = "2151--2157",
editor = "Mitsuyoshi Akiyama and Hitoshi Furuta and Frangopol, {Dan M.}",
booktitle = "Life-Cycle of Structural Systems",
note = "4th International Symposium on Life-Cycle Civil Engineering, IALCCE 2014 ; Conference date: 16-11-2014 Through 19-11-2014",
}