Influence of the Shear Cap Size and Stiffness on the Distribution of Shear Forces in Flat Slabs
The scope of this paper is to investigate analytically and numerically the influence of shear cap size and stiffness on the distribution of shear forces in flat slabs in a slab–column-connections-reinforced concrete structure. The effect of support (shear cap) stiffness on the calculation of the len...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/1/188 |
| _version_ | 1797498443897241600 |
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| author | Maciej Grabski Andrzej Ambroziak |
| author_facet | Maciej Grabski Andrzej Ambroziak |
| author_sort | Maciej Grabski |
| collection | DOAJ |
| description | The scope of this paper is to investigate analytically and numerically the influence of shear cap size and stiffness on the distribution of shear forces in flat slabs in a slab–column-connections-reinforced concrete structure. The effect of support (shear cap) stiffness on the calculation of the length of the shear control perimeter according to the available methods is presented. Based on the analysis, the authors indicate in what range of support stiffness the corner concentrations become important in the calculation of the punching resistance. For shear caps with high flexibility (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>α</mi><mn>1</mn></msub></mrow></semantics></math></inline-formula> ≤ 0.5), the concentration of internal forces in the corners does not occur. The authors compare the numerical results obtained from the calculation methods and indicate the correlations, which can be useful guidance for structural designers. In the case of large shear caps, the simplified MC2010 method gives a significantly lower value of the effective control perimeter length compared to more accurate methods. This paper is intended to provide scientists, civil engineers, and designers with guidelines on which factors influence punching shear load capacity of the slab–column connections with shear caps. |
| first_indexed | 2024-03-10T03:33:28Z |
| format | Article |
| id | doaj.art-1970602044ee43b0a07f59e11edb52f4 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:33:28Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-1970602044ee43b0a07f59e11edb52f42023-11-23T11:49:29ZengMDPI AGMaterials1996-19442021-12-0115118810.3390/ma15010188Influence of the Shear Cap Size and Stiffness on the Distribution of Shear Forces in Flat SlabsMaciej Grabski0Andrzej Ambroziak1Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233 Gdansk, PolandFaculty of Civil and Environmental Engineering, Gdansk University of Technology, 11/12 Gabriela Narutowicza Street, 80-233 Gdansk, PolandThe scope of this paper is to investigate analytically and numerically the influence of shear cap size and stiffness on the distribution of shear forces in flat slabs in a slab–column-connections-reinforced concrete structure. The effect of support (shear cap) stiffness on the calculation of the length of the shear control perimeter according to the available methods is presented. Based on the analysis, the authors indicate in what range of support stiffness the corner concentrations become important in the calculation of the punching resistance. For shear caps with high flexibility (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mi>α</mi><mn>1</mn></msub></mrow></semantics></math></inline-formula> ≤ 0.5), the concentration of internal forces in the corners does not occur. The authors compare the numerical results obtained from the calculation methods and indicate the correlations, which can be useful guidance for structural designers. In the case of large shear caps, the simplified MC2010 method gives a significantly lower value of the effective control perimeter length compared to more accurate methods. This paper is intended to provide scientists, civil engineers, and designers with guidelines on which factors influence punching shear load capacity of the slab–column connections with shear caps.https://www.mdpi.com/1996-1944/15/1/188reinforced concreteslab–column connectionspunching shearshear cap |
| spellingShingle | Maciej Grabski Andrzej Ambroziak Influence of the Shear Cap Size and Stiffness on the Distribution of Shear Forces in Flat Slabs Materials reinforced concrete slab–column connections punching shear shear cap |
| title | Influence of the Shear Cap Size and Stiffness on the Distribution of Shear Forces in Flat Slabs |
| title_full | Influence of the Shear Cap Size and Stiffness on the Distribution of Shear Forces in Flat Slabs |
| title_fullStr | Influence of the Shear Cap Size and Stiffness on the Distribution of Shear Forces in Flat Slabs |
| title_full_unstemmed | Influence of the Shear Cap Size and Stiffness on the Distribution of Shear Forces in Flat Slabs |
| title_short | Influence of the Shear Cap Size and Stiffness on the Distribution of Shear Forces in Flat Slabs |
| title_sort | influence of the shear cap size and stiffness on the distribution of shear forces in flat slabs |
| topic | reinforced concrete slab–column connections punching shear shear cap |
| url | https://www.mdpi.com/1996-1944/15/1/188 |
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