Design of Concrete Slabs Reinforcement – Methods of FEM Results Interpretation Incorporating Twisting Moments

Abstract:

There are many analytical methods to solve internal forces of slabs. But structural engineers work with structural analysis software, based mainly of finite element method (FEM). Interpretation of that analysis results may lead to errors during concrete slab reinforcement design. There are some methods to solve the problem. Most familiar are Wood-Armer equations, introduced in 1968. But other methods exists furthermore. It is common, that design engineer doesn’t know, which method his program uses. This article deals with common – not only Wood-Armer - methods of concrete slab reinforcement design incorporating twisting moments, design of skew angle reinforcement etc. Description of selected software approach.

• Periodical: Key Engineering Materials (Volume 691)
• Pages: 388-397
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.691.388
• Online since: May 2016
• Authors: Andrej Bartók*
• Keywords: Concrete, Slab, Slab Reinforcement Design, Twisting Moments

References

[1] Wood, R.H., The Reinforcement of Slabs in Accordance with a Pre-Determined Field of Moments, Concrete, Vol. 2, No. 2, 1968, 69-76. (discussion by Armer).

[2] A. Hillerborg, Strip Method of Design, Wexham Springs, Cement and Concrete Association, (1975).

[3] Eurocode 2, Design of concrete structures - Part 1-1: General rules and rules for buildings, CEN, EN 1992-1-1, Brussels, Belgium, (2004).

[4] CEB FIP Model Code 2010, Final draft, September (2011).

[5] M. Shin, A. Bommer, J.B. Deaton, B.N. Alemdar, Twisting Moments in Two-Way Slabs, Concrete International, July 2009, 245-264.