The Study of the Flexible Capacity of the Cross-Section of UHPC–Brick Masonry Composite Beams
This paper proposes a method for modifying brick masonry walls using ultra-high-performance concrete (UHPC) to effectively reduce the beam section width in composite members. First, a detailed finite element model of UHPC–brick masonry composite beams was established using the finite element softwar...
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MDPI AG
2024-12-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/14/12/4037 |
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| author | Ruochen Wang Yanzhu Zhu Zhiyu Zhu Kun Wang |
| author_facet | Ruochen Wang Yanzhu Zhu Zhiyu Zhu Kun Wang |
| author_sort | Ruochen Wang |
| collection | DOAJ |
| description | This paper proposes a method for modifying brick masonry walls using ultra-high-performance concrete (UHPC) to effectively reduce the beam section width in composite members. First, a detailed finite element model of UHPC–brick masonry composite beams was established using the finite element software ABAQUS 2022 and validated through comparison with the existing literature. Then, the effects of factors such as the tensile reinforcement ratio, UHPC layer thickness, and UHPC strength grade on the load–midspan deflection curve of composite members were analyzed, along with a study of the bending performance under vertical loads. Based on the results of the finite element analysis, a calculation formula for the positive section bending capacity of UHPC–brick masonry composite beams was proposed. The study found that longitudinal tensile reinforcement yielded first, followed by the crushing of the compressive region of UHPC and brick masonry, resulting in overall bending failure. With the increase in the tensile reinforcement ratio and UHPC layer thickness, both the yield load and peak load significantly increased, while the UHPC layer thickness had a notable impact on the cracking load of the composite member. When the UHPC strength grade ranged from 150 MPa to 180 MPa, the bearing capacity of the composite member changed little. The proposed calculation method for bearing capacity correlated well with the finite element results, providing a theoretical basis for the design and analysis of UHPC–brick masonry composite beams. |
| format | Article |
| id | doaj-art-e3652706e78b44ada6c13e6ad936a1a2 |
| institution | DOAJ |
| issn | 2075-5309 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj-art-e3652706e78b44ada6c13e6ad936a1a22025-08-20T02:55:39ZengMDPI AGBuildings2075-53092024-12-011412403710.3390/buildings14124037The Study of the Flexible Capacity of the Cross-Section of UHPC–Brick Masonry Composite BeamsRuochen Wang0Yanzhu Zhu1Zhiyu Zhu2Kun Wang3College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, ChinaCollege of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, ChinaCollege of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, ChinaCollege of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, ChinaThis paper proposes a method for modifying brick masonry walls using ultra-high-performance concrete (UHPC) to effectively reduce the beam section width in composite members. First, a detailed finite element model of UHPC–brick masonry composite beams was established using the finite element software ABAQUS 2022 and validated through comparison with the existing literature. Then, the effects of factors such as the tensile reinforcement ratio, UHPC layer thickness, and UHPC strength grade on the load–midspan deflection curve of composite members were analyzed, along with a study of the bending performance under vertical loads. Based on the results of the finite element analysis, a calculation formula for the positive section bending capacity of UHPC–brick masonry composite beams was proposed. The study found that longitudinal tensile reinforcement yielded first, followed by the crushing of the compressive region of UHPC and brick masonry, resulting in overall bending failure. With the increase in the tensile reinforcement ratio and UHPC layer thickness, both the yield load and peak load significantly increased, while the UHPC layer thickness had a notable impact on the cracking load of the composite member. When the UHPC strength grade ranged from 150 MPa to 180 MPa, the bearing capacity of the composite member changed little. The proposed calculation method for bearing capacity correlated well with the finite element results, providing a theoretical basis for the design and analysis of UHPC–brick masonry composite beams.https://www.mdpi.com/2075-5309/14/12/4037UHPCmasonrycomposite beamorthotropic force systemnormal section bearing capacity |
| spellingShingle | Ruochen Wang Yanzhu Zhu Zhiyu Zhu Kun Wang The Study of the Flexible Capacity of the Cross-Section of UHPC–Brick Masonry Composite Beams Buildings UHPC masonry composite beam orthotropic force system normal section bearing capacity |
| title | The Study of the Flexible Capacity of the Cross-Section of UHPC–Brick Masonry Composite Beams |
| title_full | The Study of the Flexible Capacity of the Cross-Section of UHPC–Brick Masonry Composite Beams |
| title_fullStr | The Study of the Flexible Capacity of the Cross-Section of UHPC–Brick Masonry Composite Beams |
| title_full_unstemmed | The Study of the Flexible Capacity of the Cross-Section of UHPC–Brick Masonry Composite Beams |
| title_short | The Study of the Flexible Capacity of the Cross-Section of UHPC–Brick Masonry Composite Beams |
| title_sort | study of the flexible capacity of the cross section of uhpc brick masonry composite beams |
| topic | UHPC masonry composite beam orthotropic force system normal section bearing capacity |
| url | https://www.mdpi.com/2075-5309/14/12/4037 |
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