Evaluation of Horizontal Shear Performance of Composite Girders Using Separable Shear Connectors
The increased volume of heavy vehicles and use of de-icing agents on concrete bridge decks accelerates the deterioration of these structures. Therefore, the rapid replacement of these structures has attracted considerable attention, with prefabricated bridges being the preferred option. Conventional...
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MDPI AG
2024-11-01
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| Series: | Applied Sciences |
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| author | Dae-Sung Jung Se-Hyun Park Jong-Wook Han Chul-Young Kim |
| author_facet | Dae-Sung Jung Se-Hyun Park Jong-Wook Han Chul-Young Kim |
| author_sort | Dae-Sung Jung |
| collection | DOAJ |
| description | The increased volume of heavy vehicles and use of de-icing agents on concrete bridge decks accelerates the deterioration of these structures. Therefore, the rapid replacement of these structures has attracted considerable attention, with prefabricated bridges being the preferred option. Conventionally, horizontal shear connections between girders and precast decks have incorporated rebar stirrup shear connectors. Although effective for initial construction, this method renders dismantling of aged decks complex, because rebar connectors are fully embedded within girders. This study introduced an embedded separable shear connector that minimizes deck-breaking and facilitates easy reinstallation by the simple separation of the deck from the girder. Horizontal shear and flexural tests on composite girders and comparisons with various design codes were conducted to evaluate this connector. The results of horizontal shear tests confirmed that securing sufficient embedment depth is necessary to prevent the pull-out failure of shear connectors. Additionally, prestressed concrete composite girder flexural tests with improved design verified that the detachable shear connectors exhibited an approximately 60% improvement in flexural performance compared with conventional reinforcement shear connectors. |
| format | Article |
| id | doaj-art-1ec0aa1fa2ea44e48dc20fd798c12052 |
| institution | DOAJ |
| issn | 2076-3417 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-1ec0aa1fa2ea44e48dc20fd798c120522025-08-20T02:50:17ZengMDPI AGApplied Sciences2076-34172024-11-0114231098210.3390/app142310982Evaluation of Horizontal Shear Performance of Composite Girders Using Separable Shear ConnectorsDae-Sung Jung0Se-Hyun Park1Jong-Wook Han2Chul-Young Kim3KOCED CMI, Yongin-si 17058, Gyeonggi-do, Republic of KoreaKLIDA, Yongin-si 17095, Gyeonggi-do, Republic of KoreaHybrid Structural Testing Center, Myongji University, Yongin-si 17058, Gyeonggi-do, Republic of KoreaHybrid Structural Testing Center, Myongji University, Yongin-si 17058, Gyeonggi-do, Republic of KoreaThe increased volume of heavy vehicles and use of de-icing agents on concrete bridge decks accelerates the deterioration of these structures. Therefore, the rapid replacement of these structures has attracted considerable attention, with prefabricated bridges being the preferred option. Conventionally, horizontal shear connections between girders and precast decks have incorporated rebar stirrup shear connectors. Although effective for initial construction, this method renders dismantling of aged decks complex, because rebar connectors are fully embedded within girders. This study introduced an embedded separable shear connector that minimizes deck-breaking and facilitates easy reinstallation by the simple separation of the deck from the girder. Horizontal shear and flexural tests on composite girders and comparisons with various design codes were conducted to evaluate this connector. The results of horizontal shear tests confirmed that securing sufficient embedment depth is necessary to prevent the pull-out failure of shear connectors. Additionally, prestressed concrete composite girder flexural tests with improved design verified that the detachable shear connectors exhibited an approximately 60% improvement in flexural performance compared with conventional reinforcement shear connectors.https://www.mdpi.com/2076-3417/14/23/10982prefabricated bridgeshorizontal shear connectionseparable shear connectorenvironmental impactdeck reinstallation |
| spellingShingle | Dae-Sung Jung Se-Hyun Park Jong-Wook Han Chul-Young Kim Evaluation of Horizontal Shear Performance of Composite Girders Using Separable Shear Connectors Applied Sciences prefabricated bridges horizontal shear connection separable shear connector environmental impact deck reinstallation |
| title | Evaluation of Horizontal Shear Performance of Composite Girders Using Separable Shear Connectors |
| title_full | Evaluation of Horizontal Shear Performance of Composite Girders Using Separable Shear Connectors |
| title_fullStr | Evaluation of Horizontal Shear Performance of Composite Girders Using Separable Shear Connectors |
| title_full_unstemmed | Evaluation of Horizontal Shear Performance of Composite Girders Using Separable Shear Connectors |
| title_short | Evaluation of Horizontal Shear Performance of Composite Girders Using Separable Shear Connectors |
| title_sort | evaluation of horizontal shear performance of composite girders using separable shear connectors |
| topic | prefabricated bridges horizontal shear connection separable shear connector environmental impact deck reinstallation |
| url | https://www.mdpi.com/2076-3417/14/23/10982 |
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