Finite element modeling of flexure-shear behavior of R-C slabs

Abstract EN

This paper delineates the various failure modes of a RC slab in terms of damage dominated either by tension eraeking in eonerete ٠٢ plastic yielding leading to concrete crushing.

Commonly observed failure modes of such slabs are classified according to level of each damage component.

Such a elassifieation helps separate the flexure-shear failure mode of RC slabs from the true punching or shear mode of collapse.

The influence of main tensile reinforcement on the metamorphosis in failure modes is highlighted by use of a non-linear finite element model, using patch loads where size bear a similar ratio to the size of the slab as the ratio of the print of a wheel to the size of a deek slab.

The implications of this model to preclude the most probable mode of failure in girder-slab or box-girder deek systems are highlighted.