{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T09:09:19Z","timestamp":1762506559957,"version":"build-2065373602"},"reference-count":11,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2015,6,15]],"date-time":"2015-06-15T00:00:00Z","timestamp":1434326400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>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.<\/jats:p>","DOI":"10.3390\/s150614079","type":"journal-article","created":{"date-parts":[[2015,6,15]],"date-time":"2015-06-15T10:57:58Z","timestamp":1434365878000},"page":"14079-14092","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Estimation of Prestress Force Distribution in the Multi-Strand System of Prestressed Concrete Structures"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7635-8936","authenticated-orcid":false,"given":"Keunhee","family":"Cho","sequence":"first","affiliation":[{"name":"Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Korea"}]},{"given":"Sung","family":"Park","sequence":"additional","affiliation":[{"name":"Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Korea"}]},{"given":"Jeong-Rae","family":"Cho","sequence":"additional","affiliation":[{"name":"Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Korea"}]},{"given":"Sung","family":"Kim","sequence":"additional","affiliation":[{"name":"Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Korea"}]},{"given":"Young-Hwan","family":"Park","sequence":"additional","affiliation":[{"name":"Structural Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, 283 Goyangdae-Ro, Ilsanseo-Gu, Goyang-Si, Gyeonggi-Do 411-712, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2015,6,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"907","DOI":"10.1260\/1369-4332.15.6.907","article-title":"FBG sensors encapsulated into 7-wire steel strand for tension monitoring of a prestressing tendon","volume":"15","author":"Kim","year":"2012","journal-title":"Adv. Struct. Eng."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1060","DOI":"10.3390\/s150101060","article-title":"A sensor-type pc strand with an embedded FBG sensor for monitoring prestress forces","volume":"15","author":"Kim","year":"2015","journal-title":"Sensors"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1901","DOI":"10.1177\/1045389X09347021","article-title":"A smart steel strand for the evaluation of prestress loss distribution in post-tensioned concrete structures","volume":"20","author":"Zhou","year":"2009","journal-title":"J. Intell. Mater. Syst. Struct."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Zhou, Z., He, J.P., and Ou, J.P. (2012). Integrated optical fiber sensing system by combing large-scale distributed BOTDA\/R and localized FBGs. Int. J. Distrib. Sens. Netw., 2012.","DOI":"10.1155\/2012\/804394"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"107","DOI":"10.1016\/j.measurement.2008.04.011","article-title":"In situ monitoring on prestress losses in the reinforced structure with fiber-optic sensors","volume":"42","author":"Xuan","year":"2009","journal-title":"Measurement"},{"key":"ref_6","unstructured":"Chandoga, M., and Jaro\u0161evi\u010d, A. (2005, January 28\u201330). Rehabilitation and monitored prestressing of corroded tendons. Proceedings of the Fib Symposium: Structural Concrete and Time, La Plata, Argentina."},{"key":"ref_7","unstructured":"Sumitro, S., Jaro\u0161evi\u010d, A., and Wang, M.L. (2002, January 13\u201319). Elasto-magnetic sensor utilization on steel cable stress measurement. Proceedings of the 1st Fib Congress: Concrete Structures in the 21th Century, Osaka, Japan."},{"key":"ref_8","unstructured":"Fabo, P., Jaro\u0161evi\u010d, A., and Chandoga, M. (2004, January 26\u201328). 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