Theoretical prediction of the shear strength of reinforced concrete slabs under concentrated loads close to linear supports
Visualitza/Obre
10.1080/15732479.2021.1988990
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/367046
Tipus de documentArticle
Data publicació2021-10
Condicions d'accésAccés obert
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Abstract
A mechanical model has been developed by the authors in order to predict the shear strength of reinforced concrete slabs under concentrated loads close to linear supports. Such situation takes place very often in bridge slabs and cantilever sections of bridge decks under concentrated heavy vehicle loads. The model takes into account a significant number of variables involved in the phenomenon, such as the clear shear span, the concrete compressive strength, the reinforcement ratio, the effective depth, the load spreading angle, the size effect and the size of the loaded area. It is applicable to simply supported slabs, cantilever slabs and situations with partial restraint to the rotation, such as intermediate supports. It has been validated with a database of 90 shear test in slabs subjected to a single concentrated load in different supporting conditions, yielding results on the safe side and showing low scatter. A parametric analysis of the model is also presented, detailing how the different involved variables affect the shear strength. These results, along with the simplified expressions developed for the shear strength calculation, provide a useful tool for the assessment of the shear strength of RC solid slabs in daily engineering.
CitacióFernandez, P.; Mari, A.; Oller, E. Theoretical prediction of the shear strength of reinforced concrete slabs under concentrated loads close to linear supports. "Structure and infrastructure engineering: maintenance, management, life-cycle design and performance", Octubre 2021,
ISSN1573-2479
Versió de l'editorhttps://www.tandfonline.com/doi/full/10.1080/15732479.2021.1988990
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