{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,2]],"date-time":"2026-01-02T07:48:31Z","timestamp":1767340111382,"version":"build-2065373602"},"reference-count":37,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2019,8,16]],"date-time":"2019-08-16T00:00:00Z","timestamp":1565913600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Key R&amp;D Program of China","award":["2017YFC0703008"],"award-info":[{"award-number":["2017YFC0703008"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Fiber-reinforced polymer (FRP) composites have been widely employed to design advanced structural columns such as the hybrid FRP\u2013concrete\u2013steel 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\u2013steel 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.<\/jats:p>","DOI":"10.3390\/s19163572","type":"journal-article","created":{"date-parts":[[2019,8,19]],"date-time":"2019-08-19T06:10:14Z","timestamp":1566195014000},"page":"3572","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["OFBG-Based Smart Double-Skin Tubular Confined-Concrete Column with Basalt FRP-Steel Composite"],"prefix":"10.3390","volume":"19","author":[{"given":"Yung William","family":"Sasy Chan","sequence":"first","affiliation":[{"name":"Department of Civil Engineering, Dalian University of Technology, Dalian 116024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhi","family":"Zhou","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Marine Resource Utilization in South China Sea, College of Civil Engineering and Architecture, Hainan University, Haikou 570228, China"},{"name":"State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wanqiu","family":"Liu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Marine Resource Utilization in South China Sea, College of Civil Engineering and Architecture, Hainan University, Haikou 570228, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinping","family":"Ou","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,8,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"280","DOI":"10.1061\/(ASCE)CC.1943-5614.0000334","article-title":"Concrete-filled FRP tubes: Manufacture and testing of new forms designed for improved performance","volume":"17","author":"Ozbakkaloglu","year":"2012","journal-title":"J. Compos. Constr."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"04017037","DOI":"10.1061\/(ASCE)CC.1943-5614.0000818","article-title":"Behavior of FRP-Steel Confined Concrete Tubular Columns Made of Expansive Self-Consolidating Concrete under Axial Compression","volume":"21","author":"Cao","year":"2017","journal-title":"J. Compos. Constr."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"846","DOI":"10.1016\/j.conbuildmat.2006.06.017","article-title":"Hybrid FRP\u2013concrete\u2013steel tubular columns: Concept and behavior","volume":"21","author":"Teng","year":"2007","journal-title":"Constr. Build. Mater."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"207","DOI":"10.1016\/j.tws.2014.03.011","article-title":"Flexural behavior of FRP-HSC-steel composite beams","volume":"80","author":"Idris","year":"2014","journal-title":"Thin Walled Struct."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"554","DOI":"10.1016\/j.conbuildmat.2013.07.029","article-title":"Compressive behavior of aramid FRP\u2013HSC\u2013steel double-skin tubular columns","volume":"48","author":"Ozbakkaloglu","year":"2013","journal-title":"Constr. Build. Mater."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"04013027","DOI":"10.1061\/(ASCE)CC.1943-5614.0000401","article-title":"Axial Compressive Behavior of FRP-Concrete-Steel Double-Skin Tubular Columns Made of Normal- and High-Strength Concrete","volume":"18","author":"Ozbakkaloglu","year":"2014","journal-title":"J. Compos. Constr."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"451","DOI":"10.1016\/j.compositesb.2007.04.001","article-title":"Behavior of FRP-confined concrete in annular section columns","volume":"39","author":"Wong","year":"2008","journal-title":"Compos. Part B-Eng."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"271","DOI":"10.1061\/(ASCE)CC.1943-5614.0000331","article-title":"Behavior of hybrid FRP-Concrete-Steel double-skin tubular columns with a square outer tube and a circular inner tube subjected to axial compression","volume":"17","author":"Yu","year":"2012","journal-title":"J. Compos. Constr."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"119","DOI":"10.1016\/j.conbuildmat.2015.03.017","article-title":"Maximum usable strain of FRP-confined concrete","volume":"83","author":"Pham","year":"2015","journal-title":"Constr. Build. Mater."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.compstruct.2017.03.013","article-title":"Compressive behavior of hybrid double-skin tubular columns with a large rupture strain FRP tube","volume":"171","author":"Yu","year":"2017","journal-title":"Compos. Struct."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1088\/0964-1726\/24\/8\/085017","article-title":"Damage analysis of CFRP-confined circular concrete-filled steel tubular columns by acoustic emission techniques","volume":"24","author":"Li","year":"2015","journal-title":"Smart Mater. Struct."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1435","DOI":"10.1061\/(ASCE)ST.1943-541X.0000632","article-title":"Active Debonding Detection for Large Rectangular CFSTs Based on Wavelet Packet Energy Spectrum with Piezoceramics","volume":"139","author":"Xu","year":"2013","journal-title":"J. Struct. Eng."},{"key":"ref_13","doi-asserted-by":"crossref","unstructured":"Luo, M., Li, W., Hei, C., and Song, G. (2016). Concrete Infill Monitoring in Concrete-Filled FRP Tubes Using a PZT-Based Ultrasonic Time-of-Flight Method. Sensors, 16.","DOI":"10.3390\/s16122083"},{"key":"ref_14","unstructured":"Marcus, M.A., Chan, P.K.C., Wang, A., Lau, A.K., Jin, W., and Zhou, L. (1999, January 11). Utilization of fiber optic Bragg grating sensors in concrete columns confined with glass-fiber-reinforced plastic (GFRP) laminate under uniaxial compression test. Proceedings of the SPIE of Conference, Boston, MA, USA."},{"key":"ref_15","unstructured":"Xin, Y., and Hui, L. (2007, January 1). Self-sensing concrete-filled FRP tubes using FBG strain sensors. Proceedings of the SPIE\u2014International Society for Optics and Photonics Conference, Harbin, China."},{"key":"ref_16","unstructured":"Kulchin, Y.N., Ou, J., Vitrik, O.B., and Zhou, Z. (2007). Optic Fiber Bragg-Grating-Based Sensing Technologies and Their Applications in Structural Health Monitoring\u2014Art. no. 659503. Fundamental Problems of Optoelectronics and Microelectronics III, Pts 1 and 2, Spie-Int Soc Optical Engineering."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"448","DOI":"10.4028\/www.scientific.net\/KEM.747.448","article-title":"Application of Smart FRP Devices for the Structural Health Monitoring of Heritage Buildings\u2014A Case Study: The Monastery of Sant\u2019Angelo d\u2019Ocre","volume":"747","author":"Coricciati","year":"2017","journal-title":"Key Eng. Mater."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Christof, H., M\u00fcller, L., K\u00fcppers, S., Hofmann, P., Giebel, E., Frick, S., Gabler, M., and Gresser, G.T. (2015). Integration Methods of Sensors in FRP Components. Materials Science Forum, Trans Tech Publications.","DOI":"10.4028\/www.scientific.net\/MSF.825-826.586"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"252003","DOI":"10.1088\/1742-6596\/1065\/25\/252003","article-title":"Optical fiber sensor-based smart structures","volume":"1065","author":"Zhou","year":"2018","journal-title":"J. Phys. Conf. Ser."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Tang, Y.S., and Wu, Z.S. (2016). Distributed Long-Gauge Optical Fiber Sensors Based Self-Sensing FRP Bar for Concrete Structure. Sensors, 16.","DOI":"10.3390\/s16030286"},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Rajan, G., and Prusty, G.B. (2016). Advances in FRP-Based Smart Components and Structures. Structural Health Monitoring of Composite Structures Using Fiber Optic Methods, CRC Press. [1st ed.].","DOI":"10.1201\/9781315369815"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"722","DOI":"10.1016\/j.measurement.2011.01.005","article-title":"Development and sensing properties study of FRP-FBG smart stay cable for bridge health monitoring applications","volume":"44","author":"Li","year":"2011","journal-title":"Measurement"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"1363","DOI":"10.1016\/j.measurement.2012.12.012","article-title":"A distributed self-sensing FRP anchor rod with built-in optical fiber sensor","volume":"46","author":"Huang","year":"2013","journal-title":"Measurement"},{"key":"ref_24","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_25","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1155\/2016\/3953750","article-title":"Fiber-Reinforced Polymer-Packaged Optical Fiber Bragg Grating Strain Sensors for Infrastructures under Harsh Environment","volume":"2016","author":"Zhou","year":"2016","journal-title":"J. Sens."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1088\/0964-1726\/19\/11\/115001","article-title":"A new type of smart basalt fiber-reinforced polymer bars as both reinforcements and sensors for civil engineering application","volume":"19","author":"Tang","year":"2010","journal-title":"Smart Mater. Struct."},{"key":"ref_27","first-page":"1","article-title":"Study on Axial Compressive Capacity of FRP-Confined Concrete-Filled Steel Tubes and Its Comparisons with Other Composite Structural Systems","volume":"2017","author":"Deng","year":"2017","journal-title":"Int. J. Polym. Sci."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"1333","DOI":"10.3390\/polym6051333","article-title":"Behavior of FRP-Confined Concrete-Filled Steel Tube Columns","volume":"6","author":"Lu","year":"2014","journal-title":"Polymers"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"1911","DOI":"10.1177\/0731684414550836","article-title":"Performance of circular concrete-filled fiber-reinforced polymer-steel composite tube columns under axial compression","volume":"33","author":"Wei","year":"2014","journal-title":"J. Reinf. Plast. Compos."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"12","DOI":"10.1016\/j.jcsr.2016.05.006","article-title":"Cyclic lateral response of FRP-confined circular concrete-filled steel tubular columns","volume":"124","author":"Yu","year":"2016","journal-title":"J. Constr. Steel Res."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"1002","DOI":"10.1016\/j.conbuildmat.2016.09.099","article-title":"Structural behaviors of deficient steel SHS short columns strengthened using CFRP","volume":"126","author":"Ghaemdoust","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1078","DOI":"10.1016\/j.tws.2008.10.012","article-title":"Strengthening metallic cylindrical shells against elephant\u2019s foot buckling with FRP","volume":"47","author":"Batikha","year":"2009","journal-title":"Thin Walled Struct."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"313","DOI":"10.1016\/j.compstruct.2016.02.016","article-title":"Behavior of hybrid GFRP\u2013perforated-steel tube-encased concrete column under uniaxial compression","volume":"142","author":"Huang","year":"2016","journal-title":"Compos. Struct."},{"key":"ref_34","unstructured":"China Planning Press (2010). Technical Code for Infrastructure Application of FRP Composite, China Planning Press."},{"key":"ref_35","unstructured":"BS18 (1987). British Standard Method for Tensile Test of Metals, British Standard Institution."},{"key":"ref_36","unstructured":"ASTM (2014). Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials, American Standard Test Method."},{"key":"ref_37","unstructured":"ACI (2003). Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures, American Concrete Institute."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/19\/16\/3572\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T13:11:32Z","timestamp":1760188292000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/19\/16\/3572"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,8,16]]},"references-count":37,"journal-issue":{"issue":"16","published-online":{"date-parts":[[2019,8]]}},"alternative-id":["s19163572"],"URL":"https:\/\/doi.org\/10.3390\/s19163572","relation":{},"ISSN":["1424-8220"],"issn-type":[{"type":"electronic","value":"1424-8220"}],"subject":[],"published":{"date-parts":[[2019,8,16]]}}}