Optimization of Sectional Dimensions of I-Section Flange Beams and Recommendations for IS 808: 1989
- 1 Civil Engineering Department, Jaypee University of Engineering & Technology, Guna, India
- 2 Civil Engineering Department, Jaypee University of Engineering & Technology, Guna, India
- 3 Civil Engineering Department, College of Engineering, Rajasthan Technological University, Kota, India
Abstract
This study covers optimization of I-sectional flange beams. Scope of this study is limited to medium weight flange beams of Table 1 of IS 808:1983 but it can be further extended for the other sections of this code. Best possible geometric shape of the cross-section is found for maximum performance of the beam with minimum material consumption. All possible loading conditions are considered in the study for which a beam in flexure undergoes in its life. ANSYS software program is used for the analysis and optimizing the sections. It is found that sections MB 125, MB 300 and MB 400 of Table 1 of IS 808 are not the optimum sections but other alternative of these cross-sections is available which within the same material consumption performs better than these sections of IS code.
- BIS (1987) IS 808: 1989 Indian Standard Dimensions for Hot Rolled Steel Beam, Column, Channel and Angle Sections. Bureau of Indian Standard, New Delhi.
- Huang, X. and Xie, Y.M. (2010) Evolutionary Topology Optimization of Continuum Structures, Methods and Applications. A John Wiley and Sons, Ltd. Hoboken.
- Ghabraie, K., Xie, Y.M. and Huang, X. (2007) Shape Optimization of Underground Excavation Using ESO Method. Innovations in Structural Engineering and Construction, Melbourne, 26-28 September 2007. https://researchbank.rmit.edu.au/view/rmit:2848
- Beghini, L.L., Beghini, A., Katz, N., Baker, W.F. and Paulino, G.H. (2014) Connecting Architecture and Engineering through Structural Topology Optimization. Engineering Structures, 59, 716-726. http://dx.doi.org/10.1016/j.engstruct.2013.10.032
- Gere & Timoshenko (2004) Mechanics of Material. CBS Publishers and Distributers Pvt. Ltd., Chennai
- Timoshenko, S. (2002) Strength of Materials, Vol. 1, Elementary Theory and Problems. 3rd Edition, CBS, New Delhi.
- Ansys Help Manual—© 2010 SAS IP, Inc.
- Benzley, S.E., Perry, E., Merkley, K. and Clark, B. (1995) A Comparison of All-Hexahedra and All Tetrahedral Finite Element Meshes for Elastic & Elastoplatic Analysis. Proceedings 4th International Meshing Round Table Sandia National Labs, Albuquerque, Livermore, October 1995, 179-181.
- Canann, S.A., Tristano, J.R. and Staten, M.L. (1998) An Approach to Combined Laplacian and Optimization-Based Smoothing for Triangular, Quadrilateral, and Quad-Dominant Meshes. ANSYS, Inc., Canonsburg, 15317.
- Ergatoudis, I., Irons, B.M. and Zienkiewicz, O.C. (1968) Curved, Isoparametric, Quadrilateral Elements for Finite Element Analysis. International Journal of Solids and Structures, 4, 31-42.
- Ramsay, A.C.A. and Maunder, E.A.W. (1995) Effective Error Estimation from Continuous, Boundary Admissible Estimated Stress Field. Instituto Superior Técnico, Universidade Técnica de Lisboa, Lisboa.
- Cook, R., Malkus, D., Plesha, M. and Witt, R. (2010) Concept and Applications of Finite Element Analysis. John Wiley & Sons (Asia) Pvt. Ltd., Hoboken.