Punching Resistance of Flat Slabs without Shear Reinforcement

Abstract:

RC flat slabs are frequently used structural members in building construction. Safety verification and avoidance of failure due to punching in the vicinity of a column is currently performed using empirical model which is introduced in Eurocode 2. However extensive discussions are held about replacement of the EC2 model by more refined mechanical model which is presented in Model Code 2010. The paper deals with statistical evaluation of the safety level above mentioned models for punching resistance without shear reinforcement. Evaluation is supplemented by third model from already cancelled Czechoslovak national standard ČSN 731201. Database which includes results of more than 400 experimental tests of flat slab specimens has been used for the statistical evaluation.

• Periodical: Advanced Materials Research (Volume 1106)
• Pages: 213-216
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1106.213
• Online since: June 2015
• Authors: Ján Hanzel*, Lucia Majtánová, Jaroslav Halvonik
• Keywords: Flat Slab, Punching, Reinforced Concrete, Shear

References

[1] EN1992-1-1 Design of Concrete Structures, Part 1-1 General Rules and Rules for Buildings, May (2004).

[2] Fédération Internationale du Béton (fib), Model Code 2010 - Final draft, Vol. 1, fédération internationale du béton, Bulletin 65, Lausanne, Switzerland, 2012, Vol. 2.

DOI: 10.35789/fib.bull.0104

[3] ČSN 731201/86 Design of Concrete Structures.

[4] Muttoni A., Schwartz, J., Behaviour of Beams and Punching in Slabs without Shear Reinforcement, IABSE Colloquium, Vol. 62, Zurich, Switzerland, 1991, pp.703-708.

[5] Muttoni A., Fernández Ruiz M., Shear strength of members without transverse reinforcement as function of critical shear crack width, ACI Structural Journal, V. 105, No 2, 2008, pp.163-172.

DOI: 10.14359/19731

[6] Muttoni, A., Fernández Ruiz, M., The levels-of-approximation approach in MC 2010: applications to punching shear provisions, Structural Concrete, Ernst & Sohn, Germany, Vol. 13, No. 1, 2012, pp.32-41.

DOI: 10.1002/suco.201100032