This paper proposes a non-linear finite element model to compute the time-dependent behaviour of reinforced concrete (RC) structures under service loads. The model, called PARC_CL 2.1, is based on a smeared and fixed crack approach in which the effects of shrinkage and creep of concrete were implemented. The creep and shrinkage of the concrete are taken into account using the Model Code 2010 formulations, opportunely modified with corrective coefficients. The proposed model is validated by studying the nonlinear response of RC continuous flat slabs. From the analyses, it is observed that the computed development of deflections and cracking with time are in good agreement with corresponding experimental results
Modelling of Time-Dependent Effects of Reinforced Concrete Flat Slabs / Belletti, B.; Muttoni, A.; Vecchi, F.; Halimi, M. H.. - ELETTRONICO. - (2021), pp. 795-802. (Intervento presentato al convegno Italian Concrete Days 2020 tenutosi a on line nel 14 – 16 APRILE 2021).
Modelling of Time-Dependent Effects of Reinforced Concrete Flat Slabs
Belletti B.;Vecchi F.;
2021-01-01
Abstract
This paper proposes a non-linear finite element model to compute the time-dependent behaviour of reinforced concrete (RC) structures under service loads. The model, called PARC_CL 2.1, is based on a smeared and fixed crack approach in which the effects of shrinkage and creep of concrete were implemented. The creep and shrinkage of the concrete are taken into account using the Model Code 2010 formulations, opportunely modified with corrective coefficients. The proposed model is validated by studying the nonlinear response of RC continuous flat slabs. From the analyses, it is observed that the computed development of deflections and cracking with time are in good agreement with corresponding experimental resultsI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
