A Detailed Numerical Model for a New Composite Slim-Floor Slab System
The paper concerns the numerical modelling of a new slim-floor system with innovative steel–concrete composite beams called “hybrid beams”. Hybrid beams consist of a high-strength TT inverted cross-section steel profile and a concrete core made of high-performance concrete and are jointed with prest...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/17/7/1464 |
| _version_ | 1797212345092538368 |
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| author | Sławomir Dudziak Paweł M. Lewiński |
| author_facet | Sławomir Dudziak Paweł M. Lewiński |
| author_sort | Sławomir Dudziak |
| collection | DOAJ |
| description | The paper concerns the numerical modelling of a new slim-floor system with innovative steel–concrete composite beams called “hybrid beams”. Hybrid beams consist of a high-strength TT inverted cross-section steel profile and a concrete core made of high-performance concrete and are jointed with prestressed hollow core slabs by infill concrete and tie reinforcement. Such systems are gaining popularity since they allow the integration of the main structural members within the ceiling depth, shorten the execution time, and reduce the use of concrete and steel. A three-dimensional finite element model is proposed with all parts of the system taken into account and detailed geometry reproduction. Advanced constitutive models are adopted for steel and concrete. Special attention is paid to the proper characterisation of interfaces. The new approach to calibration of damaged elastic traction–separation constitutive model for cohesive elements is applied to concrete-to-concrete contact zones. The model is validated with outcomes of experimental field tests and analytical calculations. A satisfactory agreement between different assessment methods is obtained. The model can be used in the development phase of a new construction system, for instance, to plan further experimental campaigns or to calibrate simplified design formulas. |
| first_indexed | 2024-04-24T10:40:54Z |
| format | Article |
| id | doaj.art-22250820b2704168b85fe15f1d9eef70 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-24T10:40:54Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-22250820b2704168b85fe15f1d9eef702024-04-12T13:21:44ZengMDPI AGMaterials1996-19442024-03-01177146410.3390/ma17071464A Detailed Numerical Model for a New Composite Slim-Floor Slab SystemSławomir Dudziak0Paweł M. Lewiński1Faculty of Civil Engineering, Warsaw University of Technology, Armii Ludowej Ave. 16, 00-637 Warsaw, PolandBuilding Structures, Geotechnics and Concrete Department, Building Research Institute (ITB), Filtrowa 1 Street, 00-611 Warsaw, PolandThe paper concerns the numerical modelling of a new slim-floor system with innovative steel–concrete composite beams called “hybrid beams”. Hybrid beams consist of a high-strength TT inverted cross-section steel profile and a concrete core made of high-performance concrete and are jointed with prestressed hollow core slabs by infill concrete and tie reinforcement. Such systems are gaining popularity since they allow the integration of the main structural members within the ceiling depth, shorten the execution time, and reduce the use of concrete and steel. A three-dimensional finite element model is proposed with all parts of the system taken into account and detailed geometry reproduction. Advanced constitutive models are adopted for steel and concrete. Special attention is paid to the proper characterisation of interfaces. The new approach to calibration of damaged elastic traction–separation constitutive model for cohesive elements is applied to concrete-to-concrete contact zones. The model is validated with outcomes of experimental field tests and analytical calculations. A satisfactory agreement between different assessment methods is obtained. The model can be used in the development phase of a new construction system, for instance, to plan further experimental campaigns or to calibrate simplified design formulas.https://www.mdpi.com/1996-1944/17/7/1464slim-floor systemsteel–concrete composite beamsAbaquscohesive elementsconcrete damaged plasticity model |
| spellingShingle | Sławomir Dudziak Paweł M. Lewiński A Detailed Numerical Model for a New Composite Slim-Floor Slab System Materials slim-floor system steel–concrete composite beams Abaqus cohesive elements concrete damaged plasticity model |
| title | A Detailed Numerical Model for a New Composite Slim-Floor Slab System |
| title_full | A Detailed Numerical Model for a New Composite Slim-Floor Slab System |
| title_fullStr | A Detailed Numerical Model for a New Composite Slim-Floor Slab System |
| title_full_unstemmed | A Detailed Numerical Model for a New Composite Slim-Floor Slab System |
| title_short | A Detailed Numerical Model for a New Composite Slim-Floor Slab System |
| title_sort | detailed numerical model for a new composite slim floor slab system |
| topic | slim-floor system steel–concrete composite beams Abaqus cohesive elements concrete damaged plasticity model |
| url | https://www.mdpi.com/1996-1944/17/7/1464 |
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