Stress field monitoring of multi-strand tendon anchorage using impedance response via PZT interface

摘要：

　　In this paper,impedance-based stress field monitoring in multi-strand tendon anchorage system via PZT interface is presented.Firstly,the stress of a multi-strand tendon anchorage system is analyzed under prestress-loss occurrence.Secondly,a hoop type of aluminum interface mounted with PZT sensor is proposed to detect the stress variation based on impedance responses of the PZT.Thirdly,a finite model of 7-strand tendon anchorage system is established to numerically evaluate the proposed technique.The change of impedance responses due to the prestress-loss is qualified via root mean square deviation(RMSD)index.Finally,the PZT-hoop interface is employed to monitor prestress-loss on lab-scale model of prestressed concrete girder.

关键词： stress field change multi-strand system impedance response PZT interface

作者: N.L Dang T.C Huynh W.B Na J.T Kim

作者单位: Department of Ocean Engineering,Pukyong National University,Busan,Korea

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 2543-2551

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）