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http://dx.doi.org/10.12652/Ksce.2010.30.2A.103

Feasibility Study of Estimating Prestress Force of Grouted Tendons  

Kim, Byeong Hwa (경남대학교 토목공학과)
Jang, Jung Bum (한국전력공사 전력연구원)
Lee, Hong Pyo (한국전력공사 전력연구원)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.30, no.2A, 2010 , pp. 103-111 More about this Journal
Abstract
A feasibility study for nondestructively estimating prestress force of a grouted tendon using axial vibrations has been investigated. Total eight prestressed concrete beams with different stress levels have been specially designed and constructed for this investigation. The various axial vibration tests have been conducted in order to extract the dynamic characteristics of the prestressed concrete beams. It turns out that the axial frequency, elastic wave velocity and elastic modulus are nonlinearly increased as the prestress force level increases. It seems that the axial vibration characteristics of the existing grouted tendons are a feasible indicator for the identification of their tensile force.
Keywords
tension; tendon; axial vibration; prestressed concrete; elastic wave velocity;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
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