The evaluation for the status and levels of tension acting on a cable supported structure has been a issue due to the structural stability. Each of strands comprising that structures is adopted prestress, the tension level of the strand during the operation is a significant factor for structural integrity of the system. However, a suitable alternative for measurement of tension acting on a strand is not proposed, as well as conservative assessment of cable system is bing adopted in industrial application. Thus, in this paper, a new method is proposed for measurement of tensile forces in a strand using guided waves. This method use a dispersion characteristic of guided waves with variation of stiffness between each of wires. Proposed method is experimentally verified by some experiments using a seven-wire strand.

• 박재하(한국표준과학연구원 안전측정센터) | Park Jae-Ha
• 조승현(한국표준과학연구원 안전측정센터) | Cho Seung-Hyun 교신저자