Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Smart Structures and Systems Volume 17, Number 6, June 2016 , pages 881-901 DOI: https://doi.org/10.12989/sss.2016.17.6.881 |
|
|
|
Compensation of temperature effect on impedance responses of PZT interface for prestress-loss monitoring in PSC girders |
||
Thanh-Canh Huynh and Jeong-Tae Kim
|
||
| Abstract | ||
| In this study, a method to compensate the effect of temperature variation on impedance responses which are used for prestress-loss monitoring in prestressed concrete (PSC) girders is presented. Firstly, an impedance-based technique using a mountable lead-zirconate-titanate (PZT) interface is presented for prestress-loss monitoring in the local tendon-anchorage member. Secondly, a cross-correlation-based algorithm to compensate the effect of temperature variation in the impedance signatures is outlined. Thirdly, lab-scale experiments are performed on a PSC girder instrumented with a mountable PZT interface at the tendon-anchorage. A series of temperature variation and prestress-loss events are simulated for the lab-scale PSC girder. Finally, the feasibility of the proposed method is experimentally verified for prestress-loss monitoring in the PSC girder under temperature-varying conditions and prestress-loss events. | ||
| Key Words | ||
| impedance monitoring, mountable PZT interface; prestress force monitoring; tendon-anchorage; PSC girders; temperature effect; temperature compensation | ||
| Address | ||
| Thanh-Canh Huynh and Jeong-Tae Kim: Department of Ocean Engineering, Pukyong National University, 599-1 Daeyeon 3-dong, Nam-gu, Busan 608-737, Republic of Korea | ||