Time-Varying Evolution Behaviors of Steel–Concrete Composite Girders with Differentiated Connectors
To improve the cracking resistance of a concrete slab in the hogging moment region, a new concept called uplift-restricted and slip-permitted (URSP) connection technology has been proposed. Several studies have been conducted on URSP connectors, but investigations into the time-varying evolution beh...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-04-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/13/5/1137 |
| _version_ | 1797600804204445696 |
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| author | Yingjie Zhu Liying Chen Chen Wang Cheng Liu Zhengyuan Li |
| author_facet | Yingjie Zhu Liying Chen Chen Wang Cheng Liu Zhengyuan Li |
| author_sort | Yingjie Zhu |
| collection | DOAJ |
| description | To improve the cracking resistance of a concrete slab in the hogging moment region, a new concept called uplift-restricted and slip-permitted (URSP) connection technology has been proposed. Several studies have been conducted on URSP connectors, but investigations into the time-varying evolution behaviors of composite beams with URSP connectors are still lacking. In this paper, three types of elaborate finite element models of composite girders with differentiated connectors and different construction methods were established. Simulation of the concrete shrinkage and creep effect was realized using a user subroutine based on an improved rate-type formulation. The performances of the composite girders in three schemes were analyzed and compared in both the construction and service stages. The results demonstrated that the URSP connection technique can effectively increase the prestressing efficiency and decrease the tensile stress of the concrete induced by dead loads and vehicle loads. With an increasing service time, the concrete shrinkage effect will enhance the advantage of the URSP connection technique, and the creep effect will reduce this advantage. Finally, parametric analyses were conducted, and a value of 0.2 is recommended for the URSP length ratio to promote practical applications. |
| first_indexed | 2024-03-11T03:54:08Z |
| format | Article |
| id | doaj.art-cb4ae929aab444b495b7478bab033c57 |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T03:54:08Z |
| publishDate | 2023-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-cb4ae929aab444b495b7478bab033c572023-11-18T00:44:01ZengMDPI AGBuildings2075-53092023-04-01135113710.3390/buildings13051137Time-Varying Evolution Behaviors of Steel–Concrete Composite Girders with Differentiated ConnectorsYingjie Zhu0Liying Chen1Chen Wang2Cheng Liu3Zhengyuan Li4School of Civil Engineering, North China University of Technology, Beijing 100144, ChinaSchool of Civil Engineering, North China University of Technology, Beijing 100144, ChinaDepartment of Civil Engineering, Tsinghua University, Beijing 100084, ChinaChina-Road Transportation Verification & Inspection Hi-Tech Co., Ltd., Beijing 100088, ChinaDepartment of Civil Engineering, Tsinghua University, Beijing 100084, ChinaTo improve the cracking resistance of a concrete slab in the hogging moment region, a new concept called uplift-restricted and slip-permitted (URSP) connection technology has been proposed. Several studies have been conducted on URSP connectors, but investigations into the time-varying evolution behaviors of composite beams with URSP connectors are still lacking. In this paper, three types of elaborate finite element models of composite girders with differentiated connectors and different construction methods were established. Simulation of the concrete shrinkage and creep effect was realized using a user subroutine based on an improved rate-type formulation. The performances of the composite girders in three schemes were analyzed and compared in both the construction and service stages. The results demonstrated that the URSP connection technique can effectively increase the prestressing efficiency and decrease the tensile stress of the concrete induced by dead loads and vehicle loads. With an increasing service time, the concrete shrinkage effect will enhance the advantage of the URSP connection technique, and the creep effect will reduce this advantage. Finally, parametric analyses were conducted, and a value of 0.2 is recommended for the URSP length ratio to promote practical applications.https://www.mdpi.com/2075-5309/13/5/1137steel–concrete composite girderuplift-restricted and slip-permitted (URSP) connectionconcrete shrinkage and creep effectconstruction processcracking |
| spellingShingle | Yingjie Zhu Liying Chen Chen Wang Cheng Liu Zhengyuan Li Time-Varying Evolution Behaviors of Steel–Concrete Composite Girders with Differentiated Connectors Buildings steel–concrete composite girder uplift-restricted and slip-permitted (URSP) connection concrete shrinkage and creep effect construction process cracking |
| title | Time-Varying Evolution Behaviors of Steel–Concrete Composite Girders with Differentiated Connectors |
| title_full | Time-Varying Evolution Behaviors of Steel–Concrete Composite Girders with Differentiated Connectors |
| title_fullStr | Time-Varying Evolution Behaviors of Steel–Concrete Composite Girders with Differentiated Connectors |
| title_full_unstemmed | Time-Varying Evolution Behaviors of Steel–Concrete Composite Girders with Differentiated Connectors |
| title_short | Time-Varying Evolution Behaviors of Steel–Concrete Composite Girders with Differentiated Connectors |
| title_sort | time varying evolution behaviors of steel concrete composite girders with differentiated connectors |
| topic | steel–concrete composite girder uplift-restricted and slip-permitted (URSP) connection concrete shrinkage and creep effect construction process cracking |
| url | https://www.mdpi.com/2075-5309/13/5/1137 |
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