Experimental and Numerical Study on UHPC–RC Decks within Hogging Moment Region
Steel–concrete composite continuous bridges can take full advantage of concrete and steel, but in regions with hogging moments, cracking of the concrete deck is a big issue affecting the durability of bridges. In order to solve cracking problems within the hogging moment region, this study proposes...
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| Format: | Article |
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MDPI AG
2022-11-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/22/11446 |
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| author | Guanxu Long Ruigen Zhou Haiying Ma Gongfeng Xin Seyyedbehrad Emadi Xuefei Shi |
| author_facet | Guanxu Long Ruigen Zhou Haiying Ma Gongfeng Xin Seyyedbehrad Emadi Xuefei Shi |
| author_sort | Guanxu Long |
| collection | DOAJ |
| description | Steel–concrete composite continuous bridges can take full advantage of concrete and steel, but in regions with hogging moments, cracking of the concrete deck is a big issue affecting the durability of bridges. In order to solve cracking problems within the hogging moment region, this study proposes a composite deck method using ultra-high-performance concrete (UHPC) and regular concrete (RC). In this way, the layers of UHPC and RC are composited to take advantage of the high tensile strength of UHPC materials to improve the anti-crack performance of the concrete deck within the hogging moment region. Four different specimens were designed to account for different layer thickness of UHPC. Bending experiments of the UHPC–RC composite deck were undertaken and a corresponding finite element model was established to study the behavior of the UHPC–RC composite deck. The regularity of crack development in different UHPC layer thicknesses was revealed, and the load-displacement results were compared to investigate the ultimate capacity of a steel–concrete composite bridge structure using a UHPC–RC composite deck. Finally, with consideration of material cost, a reasonable UHPC layer thickness suitable for the composite deck was obtained to provide a reference for the design of a UHPC–RC composite deck. |
| first_indexed | 2024-03-09T18:30:06Z |
| format | Article |
| id | doaj.art-2acd9606b0d34322abf05e855d5dc5ea |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T18:30:06Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-2acd9606b0d34322abf05e855d5dc5ea2023-11-24T07:35:22ZengMDPI AGApplied Sciences2076-34172022-11-0112221144610.3390/app122211446Experimental and Numerical Study on UHPC–RC Decks within Hogging Moment RegionGuanxu Long0Ruigen Zhou1Haiying Ma2Gongfeng Xin3Seyyedbehrad Emadi4Xuefei Shi5Shandong Key Laboratory of Highway Technology and Safety Assessment, Jinan 250014, ChinaGuangdong Communication Planning & Design Institute Group Co., Ltd., Guangzhou 510507, ChinaDepartment of Bridge Engineering, Tongji University, Shanghai 200092, ChinaShandong Key Laboratory of Highway Technology and Safety Assessment, Jinan 250014, ChinaDepartment of Civil and Building Engineering, Universitat Politècnica de Catalunya-BarcelonaTech, 08034 Barcelona, SpainDepartment of Bridge Engineering, Tongji University, Shanghai 200092, ChinaSteel–concrete composite continuous bridges can take full advantage of concrete and steel, but in regions with hogging moments, cracking of the concrete deck is a big issue affecting the durability of bridges. In order to solve cracking problems within the hogging moment region, this study proposes a composite deck method using ultra-high-performance concrete (UHPC) and regular concrete (RC). In this way, the layers of UHPC and RC are composited to take advantage of the high tensile strength of UHPC materials to improve the anti-crack performance of the concrete deck within the hogging moment region. Four different specimens were designed to account for different layer thickness of UHPC. Bending experiments of the UHPC–RC composite deck were undertaken and a corresponding finite element model was established to study the behavior of the UHPC–RC composite deck. The regularity of crack development in different UHPC layer thicknesses was revealed, and the load-displacement results were compared to investigate the ultimate capacity of a steel–concrete composite bridge structure using a UHPC–RC composite deck. Finally, with consideration of material cost, a reasonable UHPC layer thickness suitable for the composite deck was obtained to provide a reference for the design of a UHPC–RC composite deck.https://www.mdpi.com/2076-3417/12/22/11446UHPC–RC composite deckhogging moment regioncrack developmentload-displacementexperimental analyses |
| spellingShingle | Guanxu Long Ruigen Zhou Haiying Ma Gongfeng Xin Seyyedbehrad Emadi Xuefei Shi Experimental and Numerical Study on UHPC–RC Decks within Hogging Moment Region Applied Sciences UHPC–RC composite deck hogging moment region crack development load-displacement experimental analyses |
| title | Experimental and Numerical Study on UHPC–RC Decks within Hogging Moment Region |
| title_full | Experimental and Numerical Study on UHPC–RC Decks within Hogging Moment Region |
| title_fullStr | Experimental and Numerical Study on UHPC–RC Decks within Hogging Moment Region |
| title_full_unstemmed | Experimental and Numerical Study on UHPC–RC Decks within Hogging Moment Region |
| title_short | Experimental and Numerical Study on UHPC–RC Decks within Hogging Moment Region |
| title_sort | experimental and numerical study on uhpc rc decks within hogging moment region |
| topic | UHPC–RC composite deck hogging moment region crack development load-displacement experimental analyses |
| url | https://www.mdpi.com/2076-3417/12/22/11446 |
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