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PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING
Edited by: B.H.V. Topping and P. Iványi
The Application of Topology Optimisation to the Design of Steel I-Section Beam Web Openings
J.J. Kingman1, K.D. Tsavdaridis1 and V.V. Toropov1,2
1School of Civil Engineering, University of Leeds, United Kingdom
J.J. Kingman, K.D. Tsavdaridis, V.V. Toropov, "The Application of Topology Optimisation to the Design of Steel I-Section Beam Web Openings", in B.H.V. Topping, P. Iványi, (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 223, 2013. doi:10.4203/ccp.102.223
Keywords: castellated beam, cellular beam, web opening, finite element analysis, topology optimisation.
The research, described in this paper, focuses on the application of structural topology optimisation to the design of steel I-section beam web openings. A topology optimisation study is performed on the web of a steel I-section beam. A beam web design is then proposed based on the results of the topology optimisation study. A nonlinear finite element analysis technique is employed to determine the load carrying performance of the optimised beam in comparison with the conventional, widely used, cellular type beam. It is found that the optimised beam performs better in terms of load carrying capacities and stress intensities. Barriers to the implementation of the topology optimisation technique to the routine design of beam web are discussed.
A parametric topology optimisation study is conducted in order to determine the optimum opening topology for the wide range of beam cross sections that are found in practice. Thereafter, a generalised optimum web opening configuration is suggested based on the results of the parametric study. It is suggested that a shape optimisation study should be a next step towards maximising the efficiency of beams with this optimum web opening configuration.
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