|
|
Punching of reinforced concrete slab without shear reinforcement: Standard models and new proposal |
Luisa PANI, Flavio STOCHINO() |
Department of Civil, Environmental Engineering and Architecture, University of Cagliari, Cagliari 09123, Italy |
|
|
Abstract Reinforced concrete (RC) slabs are characterized by reduced construction time, versatility, and easier space partitioning. Their structural behavior is not straightforward and, specifically, punching shear strength is a current research topic. In this study an experimental database of 113 RC slabs without shear reinforcement under punching loads was compiled using data available in the literature. A sensitivity analysis of the parameters involved in the punching shear strength assessment was conducted, which highlighted the importance of the flexural reinforcement that are not typically considered for punching shear strength. After a discussion of the current international standards, a new proposed model for punching shear strength and rotation of RC slabs without shear reinforcement was discussed. It was based on a simplified load-rotation curve and new failure criteria that takes into account the flexural reinforcement effects. This experimental database was used to validate the approaches of the current international standards as well as the new proposed model. The latter proved to be a potentially useful design tool.
|
Keywords
punching shear strength
reinforced concrete
slabs
reinforcement ratio
|
Corresponding Author(s):
Flavio STOCHINO
|
Just Accepted Date: 31 August 2020
Online First Date: 28 September 2020
Issue Date: 16 November 2020
|
|
1 |
B Vakhshouri, S Nejadi. Instantaneous deflection of light-weight concrete slabs. Frontiers of Structural and Civil Engineering, 2017, 11(4): 412–423
https://doi.org/10.1007/s11709-017-0416-8
|
2 |
J Wu, X Liu. Performance of soft-hard-soft (SHS) cement based composite subjected to blast loading with consideration of interface properties. Frontiers of Structural and Civil Engineering, 2015, 9(3): 323–340
https://doi.org/10.1007/s11709-015-0301-2
|
3 |
J Baroth, L Daudeville, Y Malécot. About empirical models predicting the missile perforation of concrete barriers. European Journal of Environmental and Civil Engineering, 2012, 16(9): 1074–1089
https://doi.org/10.1080/19648189.2012.699746
|
4 |
K Micallef, J Sagaseta, M Fernández Ruiz, A Muttoni. Assessing punching shear failure in reinforced concrete flat slabs subjected to localised impact loading. International Journal of Impact Engineering, 2014, 71: 17–33
https://doi.org/10.1016/j.ijimpeng.2014.04.003
|
5 |
J Sagaseta, N Ulaeto, J Russel. Structural robustness of concrete flat slab structures. In: Proceedings of ACI-fib International Symposium on Punching Shear of Structural Concrete Slabs 2016. Philadelphia, 2016
|
6 |
Fib Bulletin N. Punching Shear of Structural Concrete Slabs. Technical Report, 2017
|
7 |
EN-1992-1-1, Eurocode 2. Design of Concrete Structures. Part 1-1: General Rules and Rules for Buildings. 2008
|
8 |
ACI 318. Code Requirements for Reinforced Concrete. 2011
|
9 |
Fib Bulletin N. Model Code 2010. 2010
|
10 |
M Hallgren. Punching shear capacity of reinforced high strength concrete slabs. Dissertation for the Doctoral Degree. Stockholm: Royal Institute of Technology, 1996
|
11 |
S Guandalini. Symmetric punching in R/C slabs. Dissertation for the Doctoral Degree. Lausanne: École Polytechnique Fédérale de Lausanne, EPFL, 2005 (in French)
|
12 |
K K L Li. Influence of size on punching shear strength. Dissertation for the Doctoral Degree. Montreal McGill University, 2000
|
13 |
R C Elstner, E Hognestad. Shearing strength of reinforced concrete slabs. ACI Journal Proceedings, 1956, 53(2): 29–58
|
14 |
L Francesconi, L Pani, F Stochino. Punching shear strength of reinforced recycled concrete slabs. Construction & Building Materials, 2016, 127: 248–263
https://doi.org/10.1016/j.conbuildmat.2016.09.094
|
15 |
H S Rao , V S K Reddy , V G Ghorpade. Influence of recycled coarse aggregate on punching behaviour of recycled coarse aggregate concrete slabs. International Journal of Modern Engineering Research (IJMER), 2015, 2(4): 2815–2820
https://doi.org/10.1.1.416.8390.
|
16 |
M F Ruiz, Y Mirzaei, A Muttoni. Post-punching behavior of flat slabs. ACI Structural Journal, 2013, 110(5): 801–811
|
17 |
S Lips. Punching of flat slabs with large amounts of shear reinforcement. Dissertation for the Doctoral Degree. Lausanne: École Polytechnique Fédérale de Lausanne, EPFL, 2012
|
18 |
N Reis, J de Brito, J R Correia, M R T Arruda. Punching behaviour of concrete slabs incorporating coarse recycled concrete aggregates. Engineering Structures, 2015, 100: 238–248
https://doi.org/10.1016/j.engstruct.2015.06.011
|
19 |
M M G Inácio, A F O Almeida , D M V Faria , V J G, Lucio A. Pinho-Ramos Punching of high strength concrete flat slabs without shear reinforcement. Engineering Structures, 2015, 103: 275–284
|
20 |
K E Ramdane. Punching shear of high performance concrete slabs. In: The 4th International Symposium on Utilization of High-strength/High Performance Concrete. Paris, 1996
|
21 |
A Muttoni. Punching shear strength of reinforced concrete slabs without transverse reinforcement. ACI Structural Journal, 2008, 105(4): 440–450
|
22 |
S Kinnunen, H Nylander. Punching of Concrete Slabs without Shear Reinforcement, Transactions of the Royal Institute of Technology. Stockholm, Sweden, 1960
|
23 |
A Marí , A Cladera, E Oller, J M Bairàn. A punching shear mechanical model for reinforced concrete flat slabs with and without shear reinforcement. Engineering Structures, 2018, 166: 413–426
https://doi.org/10.1016/j.engstruct.2018.03.079
|
24 |
T T Bui, A Limam, W S A Nana, E Ferrier, M Bost, Q B Bui. Evaluation of one-way shear behaviour of reinforced concrete slabs: Experimental and numerical analysis. European Journal of Environmental and Civil Engineering, 2017, 24(2): 190–216
|
25 |
V Sigrist, E Bentz, M F Ruiz, S Foster, A Muttoni. Background to the fib Model Code 2010 shear provisions—part I: Beams and slabs. Structural Concrete, 2013, 14(3): 195–203
https://doi.org/10.1002/suco.201200066
|
26 |
J Hedebratt, J Silfwerbrand. Full-scale test of a pile supported steel fibre concrete slab. Materials and Structures, 2014, 47(4): 647–666
https://doi.org/10.1617/s11527-013-0086-5
|
27 |
M Hassan, E A Ahmed, B Benmokrane. Punching-shear design equation for two-way concrete slabs reinforced with FRP bars and stirrups. Construction & Building Materials, 2014, 66: 522–532
https://doi.org/10.1016/j.conbuildmat.2014.04.036
|
28 |
M Bastien-Masse, E Brühwiler. Experimental investigation on punching resistance of R-UHPFRC-RC composite slabs. Materials and Structures, 2016, 49(5): 1573–1590
https://doi.org/10.1617/s11527-015-0596-4
|
29 |
F Stochino, L Pani, L Francesconi, F Mistretta. Cracking of reinforced recycled concrete slabs. International Journal of Structural Glass and Advanced Materials Research, 2017, 1(1): 3–9
https://doi.org/10.3844/sgamrsp.2017.3.9
|
30 |
M Etxeberria, A R Marí, E Vázquez. Recycled aggregate concrete as structural material. Materials and Structures, 2007, 40(5): 529–541
https://doi.org/10.1617/s11527-006-9161-5
|
31 |
J Xiao, W Wang, Z Zhou, M M Tawana. Punching shear behavior of recycled aggregate concrete slabs with and without steel fibres. Frontiers of Structural and Civil Engineering, 2019, 13(3): 725–740
https://doi.org/10.1007/s11709-018-0510-6
|
32 |
M Etxeberria, J M Fernandez, J Limeira. Secondary aggregates and seawater employment for sustainable concrete dyke blocks production: Case study. Construction & Building Materials, 2016, 113: 586–595
https://doi.org/10.1016/j.conbuildmat.2016.03.097
|
33 |
J Valivonis, T Skuturna, M Daugevičius, A Šneideris. Punching shear strength of reinforced concrete slabs with plastic void formers. Construction & Building Materials, 2017, 145: 518–527
https://doi.org/10.1016/j.conbuildmat.2017.04.057
|
34 |
K S Youm, J J Kim, J Moon. Punching shear failure of slab with lightweight aggregate concrete (LWAC) and low reinforcement ratio. Construction & Building Materials, 2014, 65: 92–102
https://doi.org/10.1016/j.conbuildmat.2014.04.097
|
35 |
M Fernández Ruiz, A Muttoni, J Sagaseta. Shear strength of concrete members without transverse reinforcement: A mechanical approach to consistently account for size and strain effects. Engineering Structures, 2015, 99: 360–372
https://doi.org/10.1016/j.engstruct.2015.05.007
|
36 |
J C Walraven. Fundamental analysis of aggregate interlock. Journal of Structural Engineering, 1981, 107(11): 2245–2270
|
37 |
F J Vecchio, M P Collins. The modified compression-field theory for reinforced concrete elements subjected to shear. ACI Journal Proceedings, 1986, 83(2): 219–231
|
38 |
T T Bui, S Abouri, A Limam, W S A NaNa, B Tedoldi, T Roure. Experimental investigation of shear strength of full-scale concrete slabs subjected to concentrated loads in nuclear buildings. Engineering Structures, 2017, 131: 405–420
https://doi.org/10.1016/j.engstruct.2016.10.045
|
39 |
W S A Nana, T T Bui, A Limam, S Abouri. Experimental and numerical modelling of shear behaviour of full-scale RC slabs under concentrated loads. Structures, 2017, 10: 96–116
https://doi.org/10.1016/j.istruc.2017.02.004
|
40 |
W S A Nana, T T Bui, M Bost, A Limam. Shear bearing capacity of rc slabs without shear reinforcement: Design codes comparison. KSCE Journal of Civil Engineering, 2019, 23: 321–334
https://doi.org/10.1007/s12205-018-0612-7
|
41 |
J T Simões, M Fernández Ruiz, A Muttoni. Validation of the Critical shear crack theory for punching of slabs without transverse reinforcement by means of a refined mechanical model. Structural Concrete, 2018, 19(1): 191–216
https://doi.org/10.1002/suco.201700280
|
42 |
S Kirkpatrick, C D Gelatt, M P. Vecchi Optimization by simulated annealing. Science, 1983, 220(4598): 671–680
|
43 |
F Stochino, A Qinami, M Kaliske. Eigenerosion for static and dynamic brittle fracture. Engineering Fracture Mechanics, 2017, 182: 537–551
https://doi.org/10.1016/j.engfracmech.2017.05.025
|
44 |
F Buffa, A Causin, A Cazzani, S Poppi, G Sanna, M Solci, F Stochino, E Turco. The Sardinia Radio Telescope: A comparison between close-range photogrammetry and finite element models. Mathematics and Mechanics of Solids, 2017, 22(5): 1005–1026
https://doi.org/10.1177/1081286515616227
|
45 |
F Stochino, A Cazzani, S Poppi, E Turco. Sardinia radio telescope finite element model updating by means of photogrammetric measurements. Mathematics and Mechanics of Solids, 2017, 22(4): 885–901
https://doi.org/10.1177/1081286515616046
|
46 |
G R Liu. The smoothed finite element method (S-FEM): A framework for the design of numerical models for desired solutions. Frontiers of Structural and Civil Engineering, 2019, 13(2): 456–477
https://doi.org/10.1007/s11709-019-0519-5
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
|
Shared |
|
|
|
|
|
Discussed |
|
|
|
|