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Shock and Vibration - Volume 2015 2015, Article ID 741618, 9 pages -

Research Article

Department of Ocean Engineering, Pukyong National University, 599-1 Daeyeon-3-dong, Nam-gu, Busan 608-737, Republic of Korea

Structural Engineering Division, Korea Institute of Construction Technology, Gyeonggi-do 411-472, Republic of Korea

Department of Ocean Engineering, Pukyong National University, Busan 608-737, Republic of Korea

BT Consultant Co., Gyeonggi-do 411-472, Republic of Korea

Received 5 September 2014; Accepted 10 November 2014

Academic Editor: Ting-Hua Yi

Copyright © 2015 Thanh-Canh Huynh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The effect of temperature variation on vibration monitoring of prestressed concrete PSC girders is experimentally analyzed. Firstly, vibration features such as autoregressive AR coefficient, correlation coefficient of power spectral density CC of PSD, natural frequency, and mode shape are selected to estimate the effect of temperature variation on vibration characteristics of PSC girders. Secondly, vibration experiments on a lab-scale PSC girder are performed under the condition of temperature variation. Finally, the vibration features with respect to the temperature variation are analyzed to estimate the effect of temperature in vibration characteristics of the PSC girder.





Autor: Thanh-Canh Huynh, Young-Hwan Park, Jae-Hyung Park, Dong-Soo Hong, and Jeong-Tae Kim

Fuente: https://www.hindawi.com/



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