Prevention of concrete breakout failure of expansion anchor in tension by post-installed reinforcement: Discrete analysis and experiment
Concrete breakout failures with acutely damaged concrete are one of the main problems caused by expansion anchors under tensile loading. In this study, the prevention of concrete breakout is investigated by post-installed reinforcement (PRs). Experimental and numerical studies were conducted to look...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509522003655 |
| _version_ | 1811332867914989568 |
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| author | Seyed Yaser Mousavi Siamakani Kohei Nagai Punyawut Jiradilok Raktipong Sahamitmongkol |
| author_facet | Seyed Yaser Mousavi Siamakani Kohei Nagai Punyawut Jiradilok Raktipong Sahamitmongkol |
| author_sort | Seyed Yaser Mousavi Siamakani |
| collection | DOAJ |
| description | Concrete breakout failures with acutely damaged concrete are one of the main problems caused by expansion anchors under tensile loading. In this study, the prevention of concrete breakout is investigated by post-installed reinforcement (PRs). Experimental and numerical studies were conducted to look into the effect of the PRs on the expansion anchors subjected to tensile loads. The 3D Rigid Body Spring Model (RBSM), which is based on discrete analysis at the mesoscale, was used as supporting numerical research. On pullout capacity, displacement, failure mechanism, and concrete breakout geometry, both experimental and numerical analyses were undertaken. The numerical analysis also looked at internal stress, strain, and concrete cracking. In general, the anchors with the PRs had steady displacement (ductile) and less brittle failure compared to the anchors without the PRs. The significant finding was in the failure mode, where severe concrete damage and concrete breakout failures were prevented by the PRs. The internal tensile stress of concrete was concentrated around the wedges of the anchors (interlocked area). The contribution of the PRs was shown by high strain values at around their mid-length. Additionally, due to the PRs, concrete cracking was less, mostly generated in the region between an anchor and its PRs. The utilization of PRs could be a method to protect concrete from breakout failure. |
| first_indexed | 2024-04-13T16:43:32Z |
| format | Article |
| id | doaj.art-47eeb66bdae54ce093dd738b19620185 |
| institution | Directory Open Access Journal |
| issn | 2214-5095 |
| language | English |
| last_indexed | 2024-04-13T16:43:32Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj.art-47eeb66bdae54ce093dd738b196201852022-12-22T02:39:09ZengElsevierCase Studies in Construction Materials2214-50952022-12-0117e01233Prevention of concrete breakout failure of expansion anchor in tension by post-installed reinforcement: Discrete analysis and experimentSeyed Yaser Mousavi Siamakani0Kohei Nagai1Punyawut Jiradilok2Raktipong Sahamitmongkol3King Mongkut’s University of Technology Thonburi, ThailandInstitute of Industrial Science, The University of Tokyo, Tokyo, JapanDepartment of Civil Engineering, Faculty of Engineering, Kasetsart University, ThailandKing Mongkut’s University of Technology Thonburi, Thailand; Corresponding author.Concrete breakout failures with acutely damaged concrete are one of the main problems caused by expansion anchors under tensile loading. In this study, the prevention of concrete breakout is investigated by post-installed reinforcement (PRs). Experimental and numerical studies were conducted to look into the effect of the PRs on the expansion anchors subjected to tensile loads. The 3D Rigid Body Spring Model (RBSM), which is based on discrete analysis at the mesoscale, was used as supporting numerical research. On pullout capacity, displacement, failure mechanism, and concrete breakout geometry, both experimental and numerical analyses were undertaken. The numerical analysis also looked at internal stress, strain, and concrete cracking. In general, the anchors with the PRs had steady displacement (ductile) and less brittle failure compared to the anchors without the PRs. The significant finding was in the failure mode, where severe concrete damage and concrete breakout failures were prevented by the PRs. The internal tensile stress of concrete was concentrated around the wedges of the anchors (interlocked area). The contribution of the PRs was shown by high strain values at around their mid-length. Additionally, due to the PRs, concrete cracking was less, mostly generated in the region between an anchor and its PRs. The utilization of PRs could be a method to protect concrete from breakout failure.http://www.sciencedirect.com/science/article/pii/S2214509522003655Discrete analysisExpansion anchorPost-installed anchorPost-installed reinforcement barRBSMConcrete breakout failure |
| spellingShingle | Seyed Yaser Mousavi Siamakani Kohei Nagai Punyawut Jiradilok Raktipong Sahamitmongkol Prevention of concrete breakout failure of expansion anchor in tension by post-installed reinforcement: Discrete analysis and experiment Case Studies in Construction Materials Discrete analysis Expansion anchor Post-installed anchor Post-installed reinforcement bar RBSM Concrete breakout failure |
| title | Prevention of concrete breakout failure of expansion anchor in tension by post-installed reinforcement: Discrete analysis and experiment |
| title_full | Prevention of concrete breakout failure of expansion anchor in tension by post-installed reinforcement: Discrete analysis and experiment |
| title_fullStr | Prevention of concrete breakout failure of expansion anchor in tension by post-installed reinforcement: Discrete analysis and experiment |
| title_full_unstemmed | Prevention of concrete breakout failure of expansion anchor in tension by post-installed reinforcement: Discrete analysis and experiment |
| title_short | Prevention of concrete breakout failure of expansion anchor in tension by post-installed reinforcement: Discrete analysis and experiment |
| title_sort | prevention of concrete breakout failure of expansion anchor in tension by post installed reinforcement discrete analysis and experiment |
| topic | Discrete analysis Expansion anchor Post-installed anchor Post-installed reinforcement bar RBSM Concrete breakout failure |
| url | http://www.sciencedirect.com/science/article/pii/S2214509522003655 |
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