Nonlinear FEM Analysis of Experimentally Tested Flat Slabs with Openings

Abstract:

Experimental programs focused on the issues related to the flat slabs still attract the attention of the scientists around the world. At the Central Laboratories of STU in Bratislava, together 8 fragments of the flat slabs were tested, focusing on the influence of the openings on the punching resistance. The two reference specimens were without openings and the others had two symmetrically placed openings. The openings were moved from the face of the column in multiples of the effective depth (0d, 1d, 2d). For the assessment of the tests, the models introduced in the relevant standards and codes were applied. The experimental results were also used for NFEM model calibration. The paper will deal with comparison of the theoretical and experimental results as well as with non-linear analysis that was performed in the ATENA FEM program, with the goal to obtain the most realistic behaviour of the flat slabs with openings. The material properties used in the analysis were obtained from the laboratory tests.

• Periodical: Solid State Phenomena (Volume 292)
• Pages: 191-196
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.292.191
• Online since: June 2019
• Authors: Tomáš Augustín*, Ľudovít Fillo, Jaroslav Halvonik
• Keywords: Flat Slabs, Non-Linear Analysis, Openings, Punching Shear

References

[1] STN EN 1992-1-1:2004/AC (2010), Eurocode 2: Design of Concrete Structures – Part 1- 1: General Rules and Rules for Buildings, (2010).

[2] Fib – Model Code 2010. Final draft. CEB, (2011).

[3] M. F. Ruiz, A. Muttoni, J. T. Simoes, F. Cavagnis, Background Document to Provisions for Shear and Punching Shear Design, Report IBETON 16‐06‐R1, Lausanne, (2016).

[4] T. Augustín, Ľ. Fillo, J. Halvonik, M. Marčiš. Punching shear resistance of flat slabs with openings - Experimental testing, Proceedings of the 12th fib International PhD Symposium in Civil Engineering pp.305-310, (2018).

DOI: 10.4028/www.scientific.net/ssp.272.41