title: Estimation of Prestress Force Distribution in the Multi-Strand System of Prestressed Concrete Structures.
abstract: Prestressed concrete (PSC) is one of the most reliable, durable and widely used construction materials, which overcomes the weakness of concrete in tension by the introduction of a prestress force. Smart strands enabling measurement of the prestress force have recently been developed to maintain PSC structures throughout their lifetime. However, the smart strand cannot give a representative indication of the whole prestress force when used in multi-strand systems since each strand sustains a different prestress force. In this paper, the actual distribution of the prestress force in a multi-strand system is examined using elastomagnetic (EM) sensors to develop a method for tracking representative indicators of the prestress force using smart strands.
authors.affiliation: Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Korea. kcho@kict.re.kr.
authors.forename: Keunhee
authors.initials: K
authors.lastname: Cho
authors.affiliation: Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Korea. sypark@kict.re.kr.
authors.forename: Sung Yong
authors.initials: SY
authors.lastname: Park
authors.affiliation: Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Korea. chojr@kict.re.kr.
authors.forename: Jeong-Rae
authors.initials: JR
authors.lastname: Cho
authors.affiliation: Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Korea. esper009@kict.re.kr.
authors.forename: Sung Tae
authors.initials: ST
authors.lastname: Kim
authors.affiliation: Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Korea. yhpark@kict.re.kr.
authors.forename: Young-Hwan
authors.initials: YH
authors.lastname: Park
keywords: elastomagnetic sensor; optical fiber sensor; prestressed concrete; strand