Mahesan Bavan
National University of Malaysia
Malaysia
Title: Local Failure Behaviour of the Steel-Concrete Composite Beam with Web Openings in Various Shapes under Axial Tension and Uniaxial Negative Bending
Biography
Biography: Mahesan Bavan
Abstract
The prospects of openings on the steel section of the steel-concrete composite beam under combined uniaxial negative bending and axial tension, which may undergo early failure state, have attained slight attention in the open literature such that this is the hypothesis of this study, which is herewith highlighted. A three dimensional numerical model for a composite beam under such combined loads was developed. The characteristic behaviours of material non-linearity, complicated interactions, load applications and boundary conditions were determined based on the nature of this particular case. A comparative study was performed to validate the accuracy of the computer solutions against the existing experimental analysis. The numerical model was then incorporated by a series of numerical analyses with a parametric study, which was the presence of openings on steel beam with different shapes, for examining the influences on the structure. The numerical results predicted were provided a better understanding in the fracture behaviour of the material components due to the openings with different shapes and ultimate limit behaviour of the composite beam. It was found that the shapes of openings on the steel beam can affect significantly the behaviour of the composite beam, which must be taken into account in the design models. Moreover, the techniques used in the development of numerical modelling is analysed extensively in this paper.