In this paper, the load-bearing capacity of a RC dapped-end beams subjected to corrosion is analyzed by proposing a numerical approach. In particular, nonlinear finite element analyses (NLFEA) are carried out by adopting a multi-layered shell element approach with the PARC_CL 2.1 crack model implemented as user subroutine in Abaqus. Firstly, to validate the numerical approach, the FE results are compared against uncorroded dapped-end beams. Secondly, the degradation effects induced by corrosion are investigated by considering: (i) the cross-sectional and mechanical properties reduction of reinforcing steel bars and (ii) the steel-to-concrete interaction. Finally, the relevant results are outlined.
Numerical approach to evaluate the load bearing capacity of RC dapped-end beams subjected to corrosion / Calcavecchia, B.; Ravasini, S.; Belletti, B.; Rinaldi, Z.; Di Carlo, F.; Molaioni, F.. - (2023), pp. 253-256. (Intervento presentato al convegno CACRCS DAYS 2023 tenutosi a Parma, Italy nel 9th – 13th July 2023).
Numerical approach to evaluate the load bearing capacity of RC dapped-end beams subjected to corrosion
Calcavecchia B.
;Ravasini S.;Belletti B.;
2023-01-01
Abstract
In this paper, the load-bearing capacity of a RC dapped-end beams subjected to corrosion is analyzed by proposing a numerical approach. In particular, nonlinear finite element analyses (NLFEA) are carried out by adopting a multi-layered shell element approach with the PARC_CL 2.1 crack model implemented as user subroutine in Abaqus. Firstly, to validate the numerical approach, the FE results are compared against uncorroded dapped-end beams. Secondly, the degradation effects induced by corrosion are investigated by considering: (i) the cross-sectional and mechanical properties reduction of reinforcing steel bars and (ii) the steel-to-concrete interaction. Finally, the relevant results are outlined.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
