Large scale non-linear finite element analyses of reinforced concrete structures

Large scale non-linear finite element analyses of reinforced concrete structures

Engen, M.
Hendriks, M.A.N.
Overli, J.A.
Aldstedt, E.

Civil Engineering and Geosciences

Structural Engineering

2014-12-31

Due to practical and economic reasons the design of complex concrete structures is often based on linear FEA with rather large elements. The inelastic behavior of reinforced concrete can lead to significant load redistributions which can only be predicted using non-linear FEA (NLFEA). This work aims at developing a method for performing large scale NLFEA of concrete structures, both with respect to material behavior and assessment of the structural safety. The present paper compares results from a simple beam experiment with NLFEA on two different element size scales. The NLFEA on both scales predict consistent ULS capacity. A localized crack pattern was only observed at medium scale, but the corresponding SLS crack widths were non-conservative due to a nonlocalized equilibrium path. A scale transition procedure should preserve the localized crack pattern.

http://resolver.tudelft.nl/uuid:517d6f9f-92e5-40f2-9b25-74597399ac01

CRIB

978-2-9806762-2-2

Proceedings of the 10th FIB International PhD Symposium in Civil Engineering, 21 – 23 July 2014, Québec, Canada. Eds.: Bastien, J., Rouleau, N., Fiset, M., Thomassin, M.

Institutional Repository

conference paper

(c) The Author(s)