Smart Sensing of PSC Girders Using a PC Strand with a Built-in Optical Fiber Sensor

This paper presents a multi-functional strand capable of introducing prestressing force in prestressed concrete (PSC) girders and sensing their static and dynamic behavior as well. This innovative strand is developed by replacing the core steel wire of the strand used in PSC structures with a carbon...

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Main Authors:	Sung Tae Kim, Hyejin Yoon, Young-Hwan Park, Seung-Seop Jin, Soobong Shin, Suk-Min Yoon
Format:	Article
Language:	English
Published:	MDPI AG 2021-01-01
Series:	Applied Sciences
Subjects:	bridge girder prestressed concrete PC strand optical sensor prestressing force management
Online Access:	https://www.mdpi.com/2076-3417/11/1/359

id	doaj-9138f5c1bc584a689a35b8dda3fdf215
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spelling	doaj-9138f5c1bc584a689a35b8dda3fdf2152021-01-02T00:00:33ZengMDPI AGApplied Sciences2076-34172021-01-011135935910.3390/app11010359Smart Sensing of PSC Girders Using a PC Strand with a Built-in Optical Fiber SensorSung Tae Kim0Hyejin Yoon1Young-Hwan Park2Seung-Seop Jin3Soobong Shin4Suk-Min Yoon5Department of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, KoreaDepartment of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, KoreaDepartment of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, KoreaDepartment of Infrastructure Safety Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, KoreaDepartment of Civil Engineering, Inha University, Incheon 22212, KoreaR and D Center, Towoong E and C, Seoul 06222, KoreaThis paper presents a multi-functional strand capable of introducing prestressing force in prestressed concrete (PSC) girders and sensing their static and dynamic behavior as well. This innovative strand is developed by replacing the core steel wire of the strand used in PSC structures with a carbon fiber-reinforced polymer (CFRP) wire with a built-in optical Fiber Bragg Grating (FBG) sensor. A full-scale girder specimen was fabricated by applying this multi-function strand to check the possibility of tracking the change of prestressing force at each construction stage. Moreover, dynamic data could be secured during dynamic loading tests without installing accelerometers and made it possible to obtain the natural frequencies of the structure. The results verified the capability to effectively manage the prestressing force in the PSC bridge structure by applying the PC strand with a built-in optical sensor known for its outstanding practicability and durability.https://www.mdpi.com/2076-3417/11/1/359bridgegirderprestressed concretePC strandoptical sensorprestressing force management
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Sung Tae Kim Hyejin Yoon Young-Hwan Park Seung-Seop Jin Soobong Shin Suk-Min Yoon
spellingShingle	Sung Tae Kim Hyejin Yoon Young-Hwan Park Seung-Seop Jin Soobong Shin Suk-Min Yoon Smart Sensing of PSC Girders Using a PC Strand with a Built-in Optical Fiber Sensor Applied Sciences bridge girder prestressed concrete PC strand optical sensor prestressing force management
author_facet	Sung Tae Kim Hyejin Yoon Young-Hwan Park Seung-Seop Jin Soobong Shin Suk-Min Yoon
author_sort	Sung Tae Kim
title	Smart Sensing of PSC Girders Using a PC Strand with a Built-in Optical Fiber Sensor
title_short	Smart Sensing of PSC Girders Using a PC Strand with a Built-in Optical Fiber Sensor
title_full	Smart Sensing of PSC Girders Using a PC Strand with a Built-in Optical Fiber Sensor
title_fullStr	Smart Sensing of PSC Girders Using a PC Strand with a Built-in Optical Fiber Sensor
title_full_unstemmed	Smart Sensing of PSC Girders Using a PC Strand with a Built-in Optical Fiber Sensor
title_sort	smart sensing of psc girders using a pc strand with a built-in optical fiber sensor
publisher	MDPI AG
series	Applied Sciences
issn	2076-3417
publishDate	2021-01-01
description	This paper presents a multi-functional strand capable of introducing prestressing force in prestressed concrete (PSC) girders and sensing their static and dynamic behavior as well. This innovative strand is developed by replacing the core steel wire of the strand used in PSC structures with a carbon fiber-reinforced polymer (CFRP) wire with a built-in optical Fiber Bragg Grating (FBG) sensor. A full-scale girder specimen was fabricated by applying this multi-function strand to check the possibility of tracking the change of prestressing force at each construction stage. Moreover, dynamic data could be secured during dynamic loading tests without installing accelerometers and made it possible to obtain the natural frequencies of the structure. The results verified the capability to effectively manage the prestressing force in the PSC bridge structure by applying the PC strand with a built-in optical sensor known for its outstanding practicability and durability.
topic	bridge girder prestressed concrete PC strand optical sensor prestressing force management
url	https://www.mdpi.com/2076-3417/11/1/359
work_keys_str_mv	AT sungtaekim smartsensingofpscgirdersusingapcstrandwithabuiltinopticalfibersensor AT hyejinyoon smartsensingofpscgirdersusingapcstrandwithabuiltinopticalfibersensor AT younghwanpark smartsensingofpscgirdersusingapcstrandwithabuiltinopticalfibersensor AT seungseopjin smartsensingofpscgirdersusingapcstrandwithabuiltinopticalfibersensor AT soobongshin smartsensingofpscgirdersusingapcstrandwithabuiltinopticalfibersensor AT sukminyoon smartsensingofpscgirdersusingapcstrandwithabuiltinopticalfibersensor
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Smart Sensing of PSC Girders Using a PC Strand with a Built-in Optical Fiber Sensor

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