Yielding and Ultimate Deformations of Wide and Deep Reinforced Concrete Beams
Metadatos
Mostrar el registro completo del ítemAutor
Gómez Martínez, FernandoEditorial
MDPI
Materia
Wide beams Deep beams Chord rotation Ductility Plastic hinge length Eurocode 8
Fecha
2022-11-18Referencia bibliográfica
Gómez-Martínez, F.; Pérez-García, A. Yielding and Ultimate Deformations of Wide and Deep Reinforced Concrete Beams. Buildings 2022, 12, 2015. [https://doi.org/10.3390/buildings12112015]
Resumen
Current formulations proposed by Eurocode 8 part 3 for the inelastic deformations of
existing reinforced concrete members are assessed separately for wide beams (WB) and conventional
deep beams (DB). The current approach, based on a large experimental database of members, predicts
larger ultimate chord rotation but lower chord rotation ductility for WB rather than for DB despite
the similar curvature ductility, due to lower plastic hinge lengths in WB. However, if the data are
disaggregated into DB and WB, predicted chord rotations are consistently conservative for DB and
not conservative for WB if compared with experimental values, especially at ultimate deformation.
Thus, plastic hinge length may be even greater for DB in comparison to WB. Therefore, some feasible
corrections of the formulations for chord rotations are proposed, in order to reduce the bias and thus
increase the robustness of the model for cross-section shape variability.