Experimental and Numerical Studies on the Mechanical Behavior of a Novel Bidirectional, Prestressed, Prefabricated, Composite Hollow-Core Slab
Prestressed, precast composite panels are a type of building component that combines prestressing technology with composite materials; but, for most of them, it is difficult to balance structural stress performance and assembly efficiency. This paper proposes a series of novel bidirectional, prestre...
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| Format: | Article |
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MDPI AG
2025-01-01
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| Online Access: | https://www.mdpi.com/2075-5309/15/2/232 |
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| author | Junyan Jin Weicheng Hu Fuyan Zheng Bitao Wu |
| author_facet | Junyan Jin Weicheng Hu Fuyan Zheng Bitao Wu |
| author_sort | Junyan Jin |
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| description | Prestressed, precast composite panels are a type of building component that combines prestressing technology with composite materials; but, for most of them, it is difficult to balance structural stress performance and assembly efficiency. This paper proposes a series of novel bidirectional, prestressed, prefabricated, composite slabs, aiming to enhance their bidirectional force characteristics and assembly efficiency. By implanting a kind of specially designed concrete movable core rib with the same geometry as the cavity in the hollow-core slab at medium spacing, the transverse stressing performance of the structure is enhanced without affecting the unidirectional structural performance. Then, in the pre-set transverse apertures, several pieces of unidirectional, prestressed, precast hollow-core slabs that are implanted in the core mold are connected in series with high-strength strands and prestressed; finally, we obtain a bidirectional, prestressed, prefabricated composite slab. Two types of slabs (i.e., 3.3 m × 4.5 m and 4.5 m × 4.5 m) are selected and their mechanical behavior is investigated experimentally and by the finite element method, and the results are in good agreement. The proposed bidirectional, prestressed, precast composite slab not only has better overall bearing performance but also improves the structural stiffness and assembly rate, which can greatly improve the economic benefits and is of great significance for the popularization and application of assembled concrete structures. |
| format | Article |
| id | doaj-art-f56a6a81df254add9267d84b3aa32e49 |
| institution | Kabale University |
| issn | 2075-5309 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-f56a6a81df254add9267d84b3aa32e492025-01-24T13:26:17ZengMDPI AGBuildings2075-53092025-01-0115223210.3390/buildings15020232Experimental and Numerical Studies on the Mechanical Behavior of a Novel Bidirectional, Prestressed, Prefabricated, Composite Hollow-Core SlabJunyan Jin0Weicheng Hu1Fuyan Zheng2Bitao Wu3School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, ChinaState Key Laboratory of Performance Monitoring and Protecting of Rail Transit Infrastructure, School of Transportation Engineering, East China Jiaotong University, Nanchang 330013, ChinaSchool of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, ChinaSchool of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, ChinaPrestressed, precast composite panels are a type of building component that combines prestressing technology with composite materials; but, for most of them, it is difficult to balance structural stress performance and assembly efficiency. This paper proposes a series of novel bidirectional, prestressed, prefabricated, composite slabs, aiming to enhance their bidirectional force characteristics and assembly efficiency. By implanting a kind of specially designed concrete movable core rib with the same geometry as the cavity in the hollow-core slab at medium spacing, the transverse stressing performance of the structure is enhanced without affecting the unidirectional structural performance. Then, in the pre-set transverse apertures, several pieces of unidirectional, prestressed, precast hollow-core slabs that are implanted in the core mold are connected in series with high-strength strands and prestressed; finally, we obtain a bidirectional, prestressed, prefabricated composite slab. Two types of slabs (i.e., 3.3 m × 4.5 m and 4.5 m × 4.5 m) are selected and their mechanical behavior is investigated experimentally and by the finite element method, and the results are in good agreement. The proposed bidirectional, prestressed, precast composite slab not only has better overall bearing performance but also improves the structural stiffness and assembly rate, which can greatly improve the economic benefits and is of great significance for the popularization and application of assembled concrete structures.https://www.mdpi.com/2075-5309/15/2/232prefabricated structurebidirectional prestressedcomposite slabexperimentfinite element method |
| spellingShingle | Junyan Jin Weicheng Hu Fuyan Zheng Bitao Wu Experimental and Numerical Studies on the Mechanical Behavior of a Novel Bidirectional, Prestressed, Prefabricated, Composite Hollow-Core Slab Buildings prefabricated structure bidirectional prestressed composite slab experiment finite element method |
| title | Experimental and Numerical Studies on the Mechanical Behavior of a Novel Bidirectional, Prestressed, Prefabricated, Composite Hollow-Core Slab |
| title_full | Experimental and Numerical Studies on the Mechanical Behavior of a Novel Bidirectional, Prestressed, Prefabricated, Composite Hollow-Core Slab |
| title_fullStr | Experimental and Numerical Studies on the Mechanical Behavior of a Novel Bidirectional, Prestressed, Prefabricated, Composite Hollow-Core Slab |
| title_full_unstemmed | Experimental and Numerical Studies on the Mechanical Behavior of a Novel Bidirectional, Prestressed, Prefabricated, Composite Hollow-Core Slab |
| title_short | Experimental and Numerical Studies on the Mechanical Behavior of a Novel Bidirectional, Prestressed, Prefabricated, Composite Hollow-Core Slab |
| title_sort | experimental and numerical studies on the mechanical behavior of a novel bidirectional prestressed prefabricated composite hollow core slab |
| topic | prefabricated structure bidirectional prestressed composite slab experiment finite element method |
| url | https://www.mdpi.com/2075-5309/15/2/232 |
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