Experimental study and methodology for calculating the punching shear strength of reinforced concrete slabs
| Autor: | Valery B. Filatov, Zulfat Sh. Galyautdinov |
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| Rok vydání: | 2021 |
| Zdroj: | Urban construction and architecture. 11:53-65 |
| ISSN: | 2782-2109 2542-0151 |
| DOI: | 10.17673/vestnik.2021.04.7 |
| Popis: | The results of studies on experimental samples of the strength and deformability of reinforced concrete slabs during punching are presented. The experimental samples were fragments of the nodes of the coupling of columns and monolithic slabs of the girderless frame. The variable parameter was the shape of the column cross-section. It is established that with an increase in the ratio of the sides of the column section , an excess of the calculated strength values over the experimental values is observed. The noted trend shows that the normative calculation method does not take into account the actual nature of the distribution of forces in the plate punching area. A technique is proposed to take into account the influence of the ratio of the sides of rectangular column section and the ratio of the side of column section to the working height of plate section on the plates punching shear strength. The comparison of experimental and calculated values of the punching shear strength of reinforced concrete slabs, obtained according to various normative methods and according to the proposed methodology, is carried out. |
| Databáze: | OpenAIRE |
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