Creep testing and analysis of high strength concrete panels under eccentric loading - buckling effects

This paper experimentally investigates the time-dependent behaviour of slender HSC panels with emphasize on their buckling behaviour. The results of five full-scale panels that were tested under eccentric sustained loads are presented, and the influences of aging, magnitude and eccentricity of the applied load are examined. The experimental results are compared to predictions generated by a theoretical model developed by the authors, which is based on the rheological generalized Maxwell model to account for creep and shrinkage, and on large deformations kinematics in the structural level. Cracking, tension-stiffening and aging of the concrete are taken into account