Optimal Localization of Smart Aggregate Sensor for Concrete Damage Monitoring in PSC Anchorage Zone

This study investigates the feasibility of smart aggregate (SA) sensors and their optimal locations for impedance-based damage monitoring in prestressed concrete (PSC) anchorage zones. Firstly, numerical stress analyses are performed on the PSC anchorage zone to determine the location of potential d...

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Main Authors: Quang-Quang Pham, Ngoc-Loi Dang, Quoc-Bao Ta, Jeong-Tae Kim
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/19/6337
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author Quang-Quang Pham
Ngoc-Loi Dang
Quoc-Bao Ta
Jeong-Tae Kim
author_facet Quang-Quang Pham
Ngoc-Loi Dang
Quoc-Bao Ta
Jeong-Tae Kim
author_sort Quang-Quang Pham
collection DOAJ
description This study investigates the feasibility of smart aggregate (SA) sensors and their optimal locations for impedance-based damage monitoring in prestressed concrete (PSC) anchorage zones. Firstly, numerical stress analyses are performed on the PSC anchorage zone to determine the location of potential damage that is induced by prestressing forces. Secondly, a simplified impedance model is briefly described for the SA sensor in the anchorage. Thirdly, numerical impedance analyses are performed to explore the sensitivities of a few SA sensors in the anchorage zone under the variation of prestressing forces and under the occurrence of artificial damage events. Finally, a real-scale PSC anchorage zone is experimentally examined to evaluate the optimal localization of the SA sensor for concrete damage detection. Impedance responses measured under a series of prestressing forces are statistically quantified to estimate the performance of damage monitoring via the SA sensor in the PSC anchorage.
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spelling doaj.art-0056b4dead744a48a2f6d0846ba6e7082023-11-22T16:44:30ZengMDPI AGSensors1424-82202021-09-012119633710.3390/s21196337Optimal Localization of Smart Aggregate Sensor for Concrete Damage Monitoring in PSC Anchorage ZoneQuang-Quang Pham0Ngoc-Loi Dang1Quoc-Bao Ta2Jeong-Tae Kim3Department of Ocean Engineering, Pukyong National University, Busan 48513, KoreaDepartment of Ocean Engineering, Pukyong National University, Busan 48513, KoreaDepartment of Ocean Engineering, Pukyong National University, Busan 48513, KoreaDepartment of Ocean Engineering, Pukyong National University, Busan 48513, KoreaThis study investigates the feasibility of smart aggregate (SA) sensors and their optimal locations for impedance-based damage monitoring in prestressed concrete (PSC) anchorage zones. Firstly, numerical stress analyses are performed on the PSC anchorage zone to determine the location of potential damage that is induced by prestressing forces. Secondly, a simplified impedance model is briefly described for the SA sensor in the anchorage. Thirdly, numerical impedance analyses are performed to explore the sensitivities of a few SA sensors in the anchorage zone under the variation of prestressing forces and under the occurrence of artificial damage events. Finally, a real-scale PSC anchorage zone is experimentally examined to evaluate the optimal localization of the SA sensor for concrete damage detection. Impedance responses measured under a series of prestressing forces are statistically quantified to estimate the performance of damage monitoring via the SA sensor in the PSC anchorage.https://www.mdpi.com/1424-8220/21/19/6337smart aggregateoptimal sensor locationimpedance-based damage monitoringsensitivity analysisprestressed concrete anchorage
spellingShingle Quang-Quang Pham
Ngoc-Loi Dang
Quoc-Bao Ta
Jeong-Tae Kim
Optimal Localization of Smart Aggregate Sensor for Concrete Damage Monitoring in PSC Anchorage Zone
Sensors
smart aggregate
optimal sensor location
impedance-based damage monitoring
sensitivity analysis
prestressed concrete anchorage
title Optimal Localization of Smart Aggregate Sensor for Concrete Damage Monitoring in PSC Anchorage Zone
title_full Optimal Localization of Smart Aggregate Sensor for Concrete Damage Monitoring in PSC Anchorage Zone
title_fullStr Optimal Localization of Smart Aggregate Sensor for Concrete Damage Monitoring in PSC Anchorage Zone
title_full_unstemmed Optimal Localization of Smart Aggregate Sensor for Concrete Damage Monitoring in PSC Anchorage Zone
title_short Optimal Localization of Smart Aggregate Sensor for Concrete Damage Monitoring in PSC Anchorage Zone
title_sort optimal localization of smart aggregate sensor for concrete damage monitoring in psc anchorage zone
topic smart aggregate
optimal sensor location
impedance-based damage monitoring
sensitivity analysis
prestressed concrete anchorage
url https://www.mdpi.com/1424-8220/21/19/6337
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AT quocbaota optimallocalizationofsmartaggregatesensorforconcretedamagemonitoringinpscanchoragezone
AT jeongtaekim optimallocalizationofsmartaggregatesensorforconcretedamagemonitoringinpscanchoragezone