Concrete Slabs Reinforced with FRP Grids. II: Punching Resistance
This article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYPublication: Journal of Composites for Construction
Volume 4, Issue 3
Abstract
The use of fiber-reinforced polymer (FRP) grid reinforcement for concrete slabs has been investigated, considering the behavior of the slabs in one-way bending and under concentrated loading. The behavior under the latter loading type will be considered in this second part of a two-part paper. From the performed punching tests and the analysis, a fairly strong interaction between shear and flexural effects was noted for most of the tested slabs. For the FRP-reinforced slabs with an increased reinforcement ratio or an increased slab depth (needed to fulfill the serviceability criteria in bending), the punching strength was similar to or higher than the tested steel-reinforced reference slabs. For most slabs, slip of the bars occurred resulting in higher deflections at failure. The calculation of the punching failure load according to empirical-based models (from different codes), a modified mechanical model, and an analytical model is evaluated.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Ahmed, S. H., Zia, P., Yu, T. J., and Xu, Y. (1994). “Punching shear tests of slabs reinforced with 3-D carbon fibre fabric.” Concrete Int., 16(6), 36–41.
2.
American Concrete Institute (ACI). ( 1995). “Building code requirements for structural concrete” and “Commentary.” ACI 318M-95 and ACI 318RM-95, Farmington Hills, Mich.
3.
Bank, L. C., and Xi, Z. (1995). “Punching shear behaviour of pultruded FRP grating reinforced concrete slabs.” Proc., 2nd Int. Symp. on Non-Metallic (FRP) Reinforcement for Concrete Struct., L. Taerwe, ed., E & FN Spon, London, 360–367.
4.
Banthia, N., Al-Asaly, M., and Ma, S. (1995). “Behavior of concrete slabs reinforced with fiber-reinforced plastic grid.”J. Mat. in Civ. Engrg., ASCE, 7(4), 252–257.
5.
Bareš, R. (1979). Tables for the analysis of plates, slabs and diaphragms based on the elastic theory, Bauverlag GmbH, Wiesbaden and Berlin, Germany.
6.
Comité Européen de Normalisation (CEN). ( 1991). “Design of concrete structures, part 1.1: General rules and rules for buildings.” Eurocode 2, Brussels.
7.
Comité Euro-International du Béton (CEB). ( 1993). CEB-FIP model code 1990, Lausanne, Switzerland.
8.
Erki, M.-A., and Heffernan, P. J. (1995). “Reinforced concrete slabs externally strengthened with fibre-reinforced plastic materials.” Proc., 2nd Int. Symp. on Non-Metallic (FRP) Reinforcement for Concrete Struct., L. Taerwe, ed., E & FN Spon, London, 509–516.
9.
Gardner, N. J. (1990). “Relationship of the punching shear capacity of reinforced concrete slabs with concrete strength.” ACI Struct. J., 87(1), 66–71.
10.
Hallgren, M. ( 1996). “Punching shear capacity of reinforced high strength concrete slabs.” PhD thesis, TRITA-BKN. Bull. 23, Royal Institute of Technology, Stockholm.
11.
Kinnunen, S., and Nylander, H. ( 1960). “Punching of concrete slabs without shear reinforcement.” Trans., Royal Inst. of Technol., Stockholm, No. 158.
12.
Nielsen, M. P. ( 1984). Limit analysis and concrete plasticity, Prentice-Hall, Englewood Cliffs, N.J., 364–377.
13.
Matthys, S., and Taerwe, L. (1996). “Punching shear behaviour of concrete slabs reinforced with FRP grids.” Proc., 2nd Int. Conf. on Advanced Compos. Mat. in Bridges and Struct., M. El-Badry, ed., Canadian Society of Civil Engineers, Montreal, 261–270.
14.
Matthys, S., and Taerwe, L. (2000). “Concrete slabs reinforced with FRP grids. I: One-way bending.”J. Compos. for Constr., ASCE, 4(3), 145–153.
15.
Menétrey, Ph. (1996). “Analytical computation of the punching strength of reinforced concrete.” ACI Struct. J., 93(5), 503–511.
16.
“Punching shear in reinforced concrete.” (1985). CEB Bull. d'Information No. 168, Comité Euro-International du Béton, Lausanne, Switzerland.
17.
Recommendation for design and construction of concrete structures using continuous fibre reinforcing materials. (1997). Concrete Engrg. Ser. 23, Japan Society of Civil Engineering, Tokyo.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 4 • Issue 3 • August 2000
Pages: 154 - 161
History
Received: Jan 21, 1999
Published online: Aug 1, 2000
Published in print: Aug 2000
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.