Optimal Localization of Smart Aggregate Sensor for Concrete Damage Monitoring in PSC Anchorage Zone
| Autor: | Quoc-Bao Ta, Quang-Quang Pham, Jeong-Tae Kim, Ngoc-Loi Dang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Damage detection
Aggregate (composite) Materials science optimal sensor location business.industry Chemical technology Structural engineering TP1-1185 Biochemistry Atomic and Molecular Physics and Optics Article smart aggregate prestressed concrete anchorage Analytical Chemistry law.invention Stress (mechanics) Prestressed concrete sensitivity analysis law Electric Impedance impedance-based damage monitoring Electrical and Electronic Engineering business Instrumentation Electrical impedance |
| Zdroj: | Sensors, Vol 21, Iss 6337, p 6337 (2021) Sensors (Basel, Switzerland) Sensors Volume 21 Issue 19 |
| ISSN: | 1424-8220 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|