JAEST LOGO

Authors

Hamza Djeffal LMN2I2S, Civil Engineering Department, Faculty of Science and Technology, University of Biskra, 07000 Biskra, Algeria Author
Mohamed Nadir Amrane Mechanics Department, Faculty of Science and Technology, University of Biskra, 07000 Biskra, Algeria Author

DOI:

https://doi.org/10.69717/jaest.v4.i2.84

Keywords:

Prestress, Embedded element, Modal Analysis, Material Non-linearity, Finite Element Method

Abstract

In this paper, a numerical modal analysis method is carried out to investigate the effectof cable strain loss on the natural frequencies in prestressed concrete beams. A simply supportedconcrete beam is modeled using the commercial finite element code ABAQUS. The beam iscomposed of concrete and prestressing strands. Firstly, a general geometrically nonlinear staticanalysis is carried out on the beam in order to obtain the camber deflection under differentprestressing magnitudes. The obtained equilibrium configuration is then used to perform a linearand nonlinear modal analysis. Thereby, a three dimensional finite element C3D8 is used for theconcrete in combination with a damaged plasticity model (CDP) are considered. Whereas, theprestressing strands are modeled with an embedded T2D2 truss element. The obtained resultsshow a good agreement with previous numerical and experimental works in literature.Furthermore, the study showed that the safety of prestressed beams depend mainly on the levelof prestressing load.

Downloads

Download data is not yet available.

Downloads

Published

2018-06-27

Issue

Section

Research Paper

How to Cite

Numerical modeling of the prestressing losses in prestressed concrete beams by modal analysis method. (2018). Journal of Applied Engineering Science & Technology, 4(2), 5. https://doi.org/10.69717/jaest.v4.i2.84

Similar Articles

11-20 of 47

You may also start an advanced similarity search for this article.