Study on shear performance of discontinuous PBL connectors with double holes
Discontinuous perfobond rib shear (PBL) connectors can be applied to fabricated steel-concrete composite beams. In this paper, six push-out specimens were designed to explore the shear performance of PBL under static and repeated loads. Four specimens were used for static push-out test. The remainin...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Alexandria Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016824000097 |
| _version_ | 1797320985042485248 |
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| author | Wang-Wang Li Li-Jia Zhao Wei Liu Li Zhu Pan Li Guan-Yuan Zhao Yao-Yu Zhu |
| author_facet | Wang-Wang Li Li-Jia Zhao Wei Liu Li Zhu Pan Li Guan-Yuan Zhao Yao-Yu Zhu |
| author_sort | Wang-Wang Li |
| collection | DOAJ |
| description | Discontinuous perfobond rib shear (PBL) connectors can be applied to fabricated steel-concrete composite beams. In this paper, six push-out specimens were designed to explore the shear performance of PBL under static and repeated loads. Four specimens were used for static push-out test. The remaining two were used for fatigue push-out test. The static load test mainly considers the influence of concrete at steel plate end and post-cast strip on the shear bearing capacity, initial shear stiffness and load-slip curve of discontinuous PBL shear connectors. On the basis of the test results, the calculating formulas of the shear capacity and shear stiffness of discontinuous PBL connectors considering the influence of end bearing, bond group effect and post-cast strip are proposed. The predicted results of the formula are close to the experiment. From the fatigue test results, it is found that the fatigue performance of above specimens with C50 and UHPC is better than that with studs, but the fatigue resistance of discontinuous PBL connectors with UHPC is not increased in proportion to the shear capacity. In addition, the residual slip and shear stiffness of PBL specimens after cyclic loading are related to fatigue load amplitude. |
| first_indexed | 2024-03-08T04:52:00Z |
| format | Article |
| id | doaj.art-cadfea39e3134b758ca67e0b51e00e1c |
| institution | Directory Open Access Journal |
| issn | 1110-0168 |
| language | English |
| last_indexed | 2024-03-08T04:52:00Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj.art-cadfea39e3134b758ca67e0b51e00e1c2024-02-08T05:03:26ZengElsevierAlexandria Engineering Journal1110-01682024-02-01884557Study on shear performance of discontinuous PBL connectors with double holesWang-Wang Li0Li-Jia Zhao1Wei Liu2Li Zhu3Pan Li4Guan-Yuan Zhao5Yao-Yu Zhu6Railway Engineering Research Institute, China Academy of Railway Sciences Corp. Ltd., Beijing 100081, ChinaSchool of Civil Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Civil Engineering, Beijing Jiaotong University, Beijing, ChinaSchool of Civil Engineering, Beijing Jiaotong University, Beijing, China; Corresponding author.Henan Yellow River Expressway Co., Ltd., Zhengzhou, ChinaSchool of Civil Engineering, Beijing Jiaotong University, Beijing, ChinaCCCC Highway Bridges National Engineering Research Center Co., Ltd., Beijing, ChinaDiscontinuous perfobond rib shear (PBL) connectors can be applied to fabricated steel-concrete composite beams. In this paper, six push-out specimens were designed to explore the shear performance of PBL under static and repeated loads. Four specimens were used for static push-out test. The remaining two were used for fatigue push-out test. The static load test mainly considers the influence of concrete at steel plate end and post-cast strip on the shear bearing capacity, initial shear stiffness and load-slip curve of discontinuous PBL shear connectors. On the basis of the test results, the calculating formulas of the shear capacity and shear stiffness of discontinuous PBL connectors considering the influence of end bearing, bond group effect and post-cast strip are proposed. The predicted results of the formula are close to the experiment. From the fatigue test results, it is found that the fatigue performance of above specimens with C50 and UHPC is better than that with studs, but the fatigue resistance of discontinuous PBL connectors with UHPC is not increased in proportion to the shear capacity. In addition, the residual slip and shear stiffness of PBL specimens after cyclic loading are related to fatigue load amplitude.http://www.sciencedirect.com/science/article/pii/S1110016824000097Discontinuous PBL connectorPush-out testShear capacityLoad-slip curveFatigue |
| spellingShingle | Wang-Wang Li Li-Jia Zhao Wei Liu Li Zhu Pan Li Guan-Yuan Zhao Yao-Yu Zhu Study on shear performance of discontinuous PBL connectors with double holes Alexandria Engineering Journal Discontinuous PBL connector Push-out test Shear capacity Load-slip curve Fatigue |
| title | Study on shear performance of discontinuous PBL connectors with double holes |
| title_full | Study on shear performance of discontinuous PBL connectors with double holes |
| title_fullStr | Study on shear performance of discontinuous PBL connectors with double holes |
| title_full_unstemmed | Study on shear performance of discontinuous PBL connectors with double holes |
| title_short | Study on shear performance of discontinuous PBL connectors with double holes |
| title_sort | study on shear performance of discontinuous pbl connectors with double holes |
| topic | Discontinuous PBL connector Push-out test Shear capacity Load-slip curve Fatigue |
| url | http://www.sciencedirect.com/science/article/pii/S1110016824000097 |
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