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In this paper the statistical assessment of the models that ensure the safety of the reinforced concrete slabs is fo cused. The investigation results in choosing the best mo del as the one that can aspire to become normative for European Union after 2020. Authors dispose with a suffi cient number of data yielded from experimental tests. Ha ving input geometrical and physical parameters of each experiment at hand, the corresponding theoretical value is computed by using three formulas provided by three models involving the same inputs. Case by case, the ratio between measured and theoretical value reveals the safety immediately. This ratio stands as the one parametric dimensionless statistical variable which is analysed after wards. Due to statistical parameters evaluation and in accordance with engineers a new model was suggested, statistically verified and nominated as the normative one.
Rocznik
Tom
Strony
49--55
Opis fizyczny
Bibliogr. 7 poz., rys.
Twórcy
autor
- Slovak University of Technology, Radlinského 11, 810 05 Bratislava, Slovakia
autor
- Slovak University of Technology, Radlinského 11, 810 05 Bratislava, Slovakia
autor
- Slovak University of Technology, Radlinského 11, 810 05 Bratislava, Slovakia
autor
- Slovak University of Technology, Radlinského 11, 810 05 Bratislava, Slovakia
Bibliografia
- [1] “EN1992‑1‑1 Design of Concrete Structures, Part 1‑1 General Rules and Rules for Buildings”, European Committee for Standardisation, 2004.
- [2] J. Hanzel, L. Majtánová , and J. Halvonı́k, “Punching Resistance of Flat Slabs without Shear Reinforcement”. In: M. Kostelecka, ed., Proceedings from 21st Czech Concrete Day 2014, Hradec Kralove, 2014.
- [3] A. Muttoni and M. Fernández Ruiz, “Shear Strength of Members without Transverse Reinforcement as Function of Critical Shear Crack Width”, ACI Structural Journal, vol. 105, no. 2, 2008, 163–172, 10.14359/19731.
- [4] A. Muttoni and M. Fernández Ruiz, “The levels‑of‑approximation approach in MC 2010: application to punching shear provisions”, Structural Concrete, vol. 13, no. 1, 2012, 32–41, 10.1002/suco.201100032.
- [5] A. Muttoni and M. Fernández Ruiz, “The Critical Shear Crack Theory for punching design: From a mechanical model to closed‑form design expressions”. In: SP‑315 ACI/fib International Symposiumon Punching Shear in Structural Concrete Slabs: Honoring Neil M. Hawkins, vol. 315, 2017, 237–252.
- [6] A. Muttoni and J. Schwartz, “Behaviour of beams and punching in slabs without shear reinforcement”, IABSE reports, vol. 62, 1991, 703–708, 10.5169/seals‑47705.
- [7] T. C. Zsutty, “Beam shear strength prediction by analysis of existing data”, American Concrete Insti tute Journal, vol. 65, no. 11, 1968, 943–95
Uwagi
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).
Typ dokumentu
Bibliografia
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