OFBG-Based Smart Double-Skin Tubular Confined-Concrete Column with Basalt FRP-Steel Composite
Fiber-reinforced polymer (FRP) composites have been widely employed to design advanced structural columns such as the hybrid FRP−concrete−steel double-skin tubular column (hybrid DSTC) with potential benefits. To date, the safety and self-monitoring of the hybrid DSTCs are still...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/16/3572 |
| _version_ | 1798024272954785792 |
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| author | Yung William Sasy Chan Zhi Zhou Wanqiu Liu Jinping Ou |
| author_facet | Yung William Sasy Chan Zhi Zhou Wanqiu Liu Jinping Ou |
| author_sort | Yung William Sasy Chan |
| collection | DOAJ |
| description | Fiber-reinforced polymer (FRP) composites have been widely employed to design advanced structural columns such as the hybrid FRP−concrete−steel double-skin tubular column (hybrid DSTC) with potential benefits. To date, the safety and self-monitoring of the hybrid DSTCs are still a challenge to overcome due to the complex damage scenarios. This paper investigates the self-sensing performance of a newly developed smart double-skin tubular confined concrete column (smart BFST-DSTC) made of basalt FRP−steel composite with built-in optical fiber Bragg grating sensors (OFBGs). The design of the smart BFST-DSTC and sensing principle are firstly addressed, followed by an experimental investigation on the basic mechanical properties and strain-based sensing performance of ten scaled specimens under axial compression. The outcomes reveal the enhancement of the proposed column in terms of load-carrying capacity, confinement ratio, and axial stress-axial strain behavior, as well as failure and damage modes when compared with the hybrid DSTC. The self-sensing investigation demonstrates that the measurement range satisfies the requirement to monitor and evaluate the hoop strains of the FRP jackets and the health state of the inner tube. The smart BFST-DSTC can replace the hybrid DSTC with the ability to provide early failure warning and life cycle health monitoring. |
| first_indexed | 2024-04-11T18:01:06Z |
| format | Article |
| id | doaj.art-74c79f8080c9441595e8dd208eba3974 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T18:01:06Z |
| publishDate | 2019-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-74c79f8080c9441595e8dd208eba39742022-12-22T04:10:32ZengMDPI AGSensors1424-82202019-08-011916357210.3390/s19163572s19163572OFBG-Based Smart Double-Skin Tubular Confined-Concrete Column with Basalt FRP-Steel CompositeYung William Sasy Chan0Zhi Zhou1Wanqiu Liu2Jinping Ou3Department of Civil Engineering, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Marine Resource Utilization in South China Sea, College of Civil Engineering and Architecture, Hainan University, Haikou 570228, ChinaState Key Laboratory of Marine Resource Utilization in South China Sea, College of Civil Engineering and Architecture, Hainan University, Haikou 570228, ChinaSchool of Civil Engineering, Harbin Institute of Technology, Harbin 150090, ChinaFiber-reinforced polymer (FRP) composites have been widely employed to design advanced structural columns such as the hybrid FRP−concrete−steel double-skin tubular column (hybrid DSTC) with potential benefits. To date, the safety and self-monitoring of the hybrid DSTCs are still a challenge to overcome due to the complex damage scenarios. This paper investigates the self-sensing performance of a newly developed smart double-skin tubular confined concrete column (smart BFST-DSTC) made of basalt FRP−steel composite with built-in optical fiber Bragg grating sensors (OFBGs). The design of the smart BFST-DSTC and sensing principle are firstly addressed, followed by an experimental investigation on the basic mechanical properties and strain-based sensing performance of ten scaled specimens under axial compression. The outcomes reveal the enhancement of the proposed column in terms of load-carrying capacity, confinement ratio, and axial stress-axial strain behavior, as well as failure and damage modes when compared with the hybrid DSTC. The self-sensing investigation demonstrates that the measurement range satisfies the requirement to monitor and evaluate the hoop strains of the FRP jackets and the health state of the inner tube. The smart BFST-DSTC can replace the hybrid DSTC with the ability to provide early failure warning and life cycle health monitoring.https://www.mdpi.com/1424-8220/19/16/3572self-sensingdouble-skin tubular columnbuilt-in OFBGFRP-strengthened steelpunched-in pattern steellife cycle strain monitoring |
| spellingShingle | Yung William Sasy Chan Zhi Zhou Wanqiu Liu Jinping Ou OFBG-Based Smart Double-Skin Tubular Confined-Concrete Column with Basalt FRP-Steel Composite Sensors self-sensing double-skin tubular column built-in OFBG FRP-strengthened steel punched-in pattern steel life cycle strain monitoring |
| title | OFBG-Based Smart Double-Skin Tubular Confined-Concrete Column with Basalt FRP-Steel Composite |
| title_full | OFBG-Based Smart Double-Skin Tubular Confined-Concrete Column with Basalt FRP-Steel Composite |
| title_fullStr | OFBG-Based Smart Double-Skin Tubular Confined-Concrete Column with Basalt FRP-Steel Composite |
| title_full_unstemmed | OFBG-Based Smart Double-Skin Tubular Confined-Concrete Column with Basalt FRP-Steel Composite |
| title_short | OFBG-Based Smart Double-Skin Tubular Confined-Concrete Column with Basalt FRP-Steel Composite |
| title_sort | ofbg based smart double skin tubular confined concrete column with basalt frp steel composite |
| topic | self-sensing double-skin tubular column built-in OFBG FRP-strengthened steel punched-in pattern steel life cycle strain monitoring |
| url | https://www.mdpi.com/1424-8220/19/16/3572 |
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