Wave Number-Based Technique for Detecting Slope Discontinuity in Simple Beams Using Moving Test Vehicle
學年 106
學期 1
出版（發表）日期 2017-08-01
作品名稱 Wave Number-Based Technique for Detecting Slope Discontinuity in Simple Beams Using Moving Test Vehicle
作品名稱（其他語言）
著者 J. D. Yau; Judy P. Yang; Y. B. Yang
單位
出版者
著錄名稱、卷期、頁數 International Journal of Structural Stability and Dynamics 17(6), 1750060 (21 pages)
摘要 The wavelength characteristic is a useful clue for locating and assessing the severity of slope discontinuity in beams. In this study, the slope discontinuity of a beam is represented by an internal hinge restrained by elastic springs, and the wavelength of the beam is calculated indirectly from the vertical response of a test vehicle during its travel over the beam. The key parameters of the problem at hand are ¯rst unveiled using an approximate, closed-form solution for the response of the vehicle moving at low speeds over the bridge. Then a two-beam element model with slope discontinuity is formulated for the vehicle–bridge interaction (VBI) system for use in numerical simulation. In the examples, the wavenumber-based response of the test vehicle is used to identify the location and severity of the discontinuity in the beam. It is demonstrated that the wavelength-based technique presented herein by using the moving test vehicle as a moving sensor system o®ers a promising, alternative approach for damage detection in girder type bridges.
關鍵字 Bridge; slope discontinuity; test vehicle; wavelength; wave number.
語言 en_US
ISSN 0219-4554
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者
審稿制度 是
國別 SGP
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/112935 )