Experimental, Numerical, and Analytical Studies of Uniaxial Compressive Behavior of Concrete Confined by Ultra-High-Performance Concrete
This research examines the uniaxial behavior of core concrete, which is confined by a UHPC (ultra-high-performance concrete) shell, through experimental, numerical, and analytical methods. Various configurations, including different UHPC shell shapes, thicknesses, and core concrete compressive stren...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2023/1408320 |
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| author | Shijun Wang Chun Liu Yunfei Tian Xing Wang Teng Tong Saiyang Zhuo |
| author_facet | Shijun Wang Chun Liu Yunfei Tian Xing Wang Teng Tong Saiyang Zhuo |
| author_sort | Shijun Wang |
| collection | DOAJ |
| description | This research examines the uniaxial behavior of core concrete, which is confined by a UHPC (ultra-high-performance concrete) shell, through experimental, numerical, and analytical methods. Various configurations, including different UHPC shell shapes, thicknesses, and core concrete compressive strengths, were tested until failure occurred. Results indicate that the UHPC shell altered the failure modes and enhanced the maximum stress and corresponding strain in uniaxial loading. Additionally, in square and rectangular specimens, debonding between the UHPC and NC (normal concrete) interfaces was observed. Furthermore, we constructed numerical models which integrate the concrete damage plasticity model for NC/UHPC and the coupled adhesive-frictional model implemented in cohesive elements. The model accurately reflects the crack and debonding evolution of the tested specimen. Subsequently, an analytical stress-strain model for uniaxial loading was created based on the experimental results. The confining pressure for square/rectangular specimens was determined using Airy’s function. The validity of the analytical model was verified by comparing its predictions with the experimental results. |
| format | Article |
| id | doaj-art-ba8e2ff4ff394332b96df75cfa8d6976 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-ba8e2ff4ff394332b96df75cfa8d69762025-02-03T06:45:10ZengWileyAdvances in Civil Engineering1687-80942023-01-01202310.1155/2023/1408320Experimental, Numerical, and Analytical Studies of Uniaxial Compressive Behavior of Concrete Confined by Ultra-High-Performance ConcreteShijun Wang0Chun Liu1Yunfei Tian2Xing Wang3Teng Tong4Saiyang Zhuo5Division of DevelopmentDivision of DevelopmentDivision of DevelopmentDivision of DevelopmentSchool of Civil EngineeringSchool of Civil EngineeringThis research examines the uniaxial behavior of core concrete, which is confined by a UHPC (ultra-high-performance concrete) shell, through experimental, numerical, and analytical methods. Various configurations, including different UHPC shell shapes, thicknesses, and core concrete compressive strengths, were tested until failure occurred. Results indicate that the UHPC shell altered the failure modes and enhanced the maximum stress and corresponding strain in uniaxial loading. Additionally, in square and rectangular specimens, debonding between the UHPC and NC (normal concrete) interfaces was observed. Furthermore, we constructed numerical models which integrate the concrete damage plasticity model for NC/UHPC and the coupled adhesive-frictional model implemented in cohesive elements. The model accurately reflects the crack and debonding evolution of the tested specimen. Subsequently, an analytical stress-strain model for uniaxial loading was created based on the experimental results. The confining pressure for square/rectangular specimens was determined using Airy’s function. The validity of the analytical model was verified by comparing its predictions with the experimental results.http://dx.doi.org/10.1155/2023/1408320 |
| spellingShingle | Shijun Wang Chun Liu Yunfei Tian Xing Wang Teng Tong Saiyang Zhuo Experimental, Numerical, and Analytical Studies of Uniaxial Compressive Behavior of Concrete Confined by Ultra-High-Performance Concrete Advances in Civil Engineering |
| title | Experimental, Numerical, and Analytical Studies of Uniaxial Compressive Behavior of Concrete Confined by Ultra-High-Performance Concrete |
| title_full | Experimental, Numerical, and Analytical Studies of Uniaxial Compressive Behavior of Concrete Confined by Ultra-High-Performance Concrete |
| title_fullStr | Experimental, Numerical, and Analytical Studies of Uniaxial Compressive Behavior of Concrete Confined by Ultra-High-Performance Concrete |
| title_full_unstemmed | Experimental, Numerical, and Analytical Studies of Uniaxial Compressive Behavior of Concrete Confined by Ultra-High-Performance Concrete |
| title_short | Experimental, Numerical, and Analytical Studies of Uniaxial Compressive Behavior of Concrete Confined by Ultra-High-Performance Concrete |
| title_sort | experimental numerical and analytical studies of uniaxial compressive behavior of concrete confined by ultra high performance concrete |
| url | http://dx.doi.org/10.1155/2023/1408320 |
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