Deformational analysis of prestressed high-strength concrete members using flexural constitutive model

Abstract

In this paper, an attempt has been made to extend application of the recently proposed Flexural constitutive model to short- and long-term deformational analysis of flexural partially prestressed concrete members. The effect of tension stiffening and non-linear time effects of creep and shrinkage are taken into account. Effective modulus method is used for modelling long-term deformations. The proposed calculation technique is based on the layered approach and use of material stress-strain relationships. Curvatures prediction results were tested against experimental data of partially prestressed concrete beams reported in literature.