Experimental and analytical study of flexural behaviour of BFRP sheets strengthened RC beams with new epoxy anchors
Intermediate crack (IC) debonding is a common failure mode of externally bonded (EB) FRP-strengthened RC beams. This debonding failure initiates at an intermediate crack and propagates towards a plate end. New epoxy anchor was proposed recently by the authors and has shown its effectiveness in enhan...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | English |
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ELSEVIER SCI LTD
2021
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/LP150100259 http://hdl.handle.net/20.500.11937/91679 |
| _version_ | 1848765576779923456 |
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| author | Yuan, C. Chen, Wensu Pham, Thong Hao, Hong Chen, L. Wang, J. |
| author_facet | Yuan, C. Chen, Wensu Pham, Thong Hao, Hong Chen, L. Wang, J. |
| author_sort | Yuan, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Intermediate crack (IC) debonding is a common failure mode of externally bonded (EB) FRP-strengthened RC beams. This debonding failure initiates at an intermediate crack and propagates towards a plate end. New epoxy anchor was proposed recently by the authors and has shown its effectiveness in enhancing interfacial bonding behaviour and therefore it might be effective to delay or suppress IC debonding failure in RC beams. This study is to experimentally investigate the efficiency of using epoxy anchors for mitigating the IC debonding under three-point bending tests. The application of the new proposed epoxy anchors has advantage of simple installation procedure including pre-drilling holes and then bonding FRP. Totally, five RC beams including one control specimen and four anchored ones were tested. Damage modes and structural response of unanchored and anchored RC beams were evaluated and discussed. The effects of various configurations of epoxy anchors were analysed and discussed. The experimental results show that the load-carrying capacity and the ductility of anchored beams increased by up to 13.12% and 53.31%, respectively, and the strain utilization of FRP can be significantly improved by 43.48% as compared to the control specimen. |
| first_indexed | 2025-11-14T11:37:27Z |
| format | Journal Article |
| id | curtin-20.500.11937-91679 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:37:27Z |
| publishDate | 2021 |
| publisher | ELSEVIER SCI LTD |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-916792023-05-18T08:17:53Z Experimental and analytical study of flexural behaviour of BFRP sheets strengthened RC beams with new epoxy anchors Yuan, C. Chen, Wensu Pham, Thong Hao, Hong Chen, L. Wang, J. Science & Technology Technology Engineering, Civil Engineering BFRP Flexural strengthening RC beams IC debonding Epoxy anchor REINFORCED-CONCRETE BEAMS FRP MODELS PERFORMANCE FAILURE Intermediate crack (IC) debonding is a common failure mode of externally bonded (EB) FRP-strengthened RC beams. This debonding failure initiates at an intermediate crack and propagates towards a plate end. New epoxy anchor was proposed recently by the authors and has shown its effectiveness in enhancing interfacial bonding behaviour and therefore it might be effective to delay or suppress IC debonding failure in RC beams. This study is to experimentally investigate the efficiency of using epoxy anchors for mitigating the IC debonding under three-point bending tests. The application of the new proposed epoxy anchors has advantage of simple installation procedure including pre-drilling holes and then bonding FRP. Totally, five RC beams including one control specimen and four anchored ones were tested. Damage modes and structural response of unanchored and anchored RC beams were evaluated and discussed. The effects of various configurations of epoxy anchors were analysed and discussed. The experimental results show that the load-carrying capacity and the ductility of anchored beams increased by up to 13.12% and 53.31%, respectively, and the strain utilization of FRP can be significantly improved by 43.48% as compared to the control specimen. 2021 Journal Article http://hdl.handle.net/20.500.11937/91679 10.1016/j.engstruct.2021.112441 English http://purl.org/au-research/grants/arc/LP150100259 ELSEVIER SCI LTD fulltext |
| spellingShingle | Science & Technology Technology Engineering, Civil Engineering BFRP Flexural strengthening RC beams IC debonding Epoxy anchor REINFORCED-CONCRETE BEAMS FRP MODELS PERFORMANCE FAILURE Yuan, C. Chen, Wensu Pham, Thong Hao, Hong Chen, L. Wang, J. Experimental and analytical study of flexural behaviour of BFRP sheets strengthened RC beams with new epoxy anchors |
| title | Experimental and analytical study of flexural behaviour of BFRP sheets strengthened RC beams with new epoxy anchors |
| title_full | Experimental and analytical study of flexural behaviour of BFRP sheets strengthened RC beams with new epoxy anchors |
| title_fullStr | Experimental and analytical study of flexural behaviour of BFRP sheets strengthened RC beams with new epoxy anchors |
| title_full_unstemmed | Experimental and analytical study of flexural behaviour of BFRP sheets strengthened RC beams with new epoxy anchors |
| title_short | Experimental and analytical study of flexural behaviour of BFRP sheets strengthened RC beams with new epoxy anchors |
| title_sort | experimental and analytical study of flexural behaviour of bfrp sheets strengthened rc beams with new epoxy anchors |
| topic | Science & Technology Technology Engineering, Civil Engineering BFRP Flexural strengthening RC beams IC debonding Epoxy anchor REINFORCED-CONCRETE BEAMS FRP MODELS PERFORMANCE FAILURE |
| url | http://purl.org/au-research/grants/arc/LP150100259 http://hdl.handle.net/20.500.11937/91679 |