Nonlinear finite element modeling of cracking at ends of pretensioned bridge girders

Accurate finite element modeling of pretensioned prestressed concrete beams

“…[17] as in the other two cases, the prestressed concrete finite element model of the problem presented in Ref. [17] is built and simulated and the results are compared with the experimental work of O'Callaghan [21].…”

“…As before, since modeling of stirrups did not make any difference in the results, the stirrups have been disregarded during the present modeling process. All the associated material and geometric information for the prestressed concrete beam problem were taken from [17,21]. A view of the finite element model can be seen in Fig.…”

“…Since 1960's, finite element simulation to predict the response of prestressed concrete beams has been widely used. But some of the finite element models used for this purpose were grossly inadequate and were not representative of the real mechanics of prestressed concrete beams and most recent attempts to improve the situation [15][16][17] were not quite successful.…”

“…Herein after, all the three problems considered by Ayoub, Arab et al and Okumus et al [15][16][17] will be called problems of references 15, 16 and 17, respectively. As part of this study, these three problems are modeled and re-simulated by the authors, using the proposed finite element modeling scheme.…”

“…The 2012 study by Okumus et al [17] is also based on modeling with Abaqus. The concrete material is again represented by using CDP model.…”