Punching Shear Behavior and Design of an Innovative Connection from Steel Tubular Column to Flat Concrete Slab
Publication: Journal of Structural Engineering
Volume 144, Issue 9
Abstract
This paper presents the results of an experimental and numerical investigation into the punching shear behavior of a simple and effective method of connection between a steel tubular column and concrete flat slab using welded shear studs. Experimental and numerical simulations are used to modify an analytical method suitable for use in design. The shear stud used is the same type as used in conventional steel or concrete composite beams. A major difference between the shear stud behavior in the proposed system and in composite beams is that in the proposed system, the amount of concrete available to resist punching shear is limited due to the small depth of the flat concrete slab. Experimental and numerical studies have investigated the effects on punching shear behavior and resistance of the proposed shear connection system under different design variables, including concrete depth above the shear stud, concrete compressive strength, concrete tensile strength, shear stud dimensions (length and diameter), and reinforcement. The results indicate that it is possible to use the proposed simple connection system to provide sufficient punching shear resistance in realistic flat slab construction. The results of the numerical parametric study indicate that the punching shear resistance of the proposed shear stud system is directly affected by concrete tensile strength rather than concrete compressive strength. The experimental and numerical simulation study results are used to assess an existing relevant calculation method and develop a simple method to calculate the punching shear resistance of this new connection system.
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Acknowledgments
This research was partially funded by CIDECT, through project 4G “flat slabs to tubular columns.”
References
ABAQUS. 2013. Abaqus user’s manual. Version 6.13. Waltham, MA: Dassault Systemes.
ACI (American Concrete Institute). 2014. Building code requirements for structural concrete. ACI 318. Farmington Hills, MI: ACI.
Bazant, Z. P. 1984. “Size effect in blunt fracture, concrete, rock, metal.” J. Eng. Mech. 100 (4): 518–535.
Bazant, Z. P., and Z. Cap. 1987. “Size effect in punching shear failure of slabs.” ACI Struct. J. 84 (1): 44–53.
Borhan, T. M. 2011. Thermal and structural behaviour of basalt fibre reinforced glass concrete. Ph.D. thesis, Univ. of Manchester.
CEB (Comite Euro-International du Beton)-FIP (federation internationale du beton). 1990. Model code for concrete structures. London: Cement and Concrete Association.
CEN (European Committee for Standardization). 2004. Eurocode 2: Design of concrete structures. Part 1-1: General rules and rules for buildings. London: British Standards Institute.
Eligehausen, R., P. Bouska, V. Cervenka, and R. Pukl. 1992. “Size effect on the concrete failure load of anchor bolts.” In Proc., 1st Int. Conf. on Fracture Mechanics of Concrete Structures, 517–525. London: Taylor & Francis Group.
Eligehausen, R., R. Mallee, and J. F. Silva. 2006. Anchorage in concrete construction. Berlin: Wiley VCH.
Eligehausen, R., and J. Ozbolt. 1991. “Size effect in anchorage behaviour.” In Proc., European Conf. on Fracture Mechanics, Fracture Behaviour and Design of Materials and Structures, 17–44. Cardley Health, West Midlands: Engineering Material Advisory Services.
Eligehausen, R., and G. Sawade. 1989. “Fracture mechanics based description of the pull-out behaviour of headed studs embedded in concrete.” In Fracture mechanics of concrete structures. From theory to applications, edited by L. Elfgren, 263–281. London: Chapman & Hall.
Fuchs, W., R. Eligehausen, and J. E. Breen. 1995. “Concrete capacity design (CCD) approach for fastening to concrete.” ACI Struct. J. 92 (1): 73–94.
Grosser, P. R. 2012. “Load-bearing behaviour and design of anchorages subjected to shear and torsion loading in uncracked concrete.” Ph.D. thesis, Univ. of Stuttgart.
Hillerborg, A., M. Modeer, and P.-E. Petersson. 1976. “Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite element.” Cem. Concr. Res. 6 (6): 773–781. https://doi.org/10.1016/0008-8846(76)90007-7.
Hordijk, D. A. 1991. “Local approach to fatigue of concrete.” Ph.D. thesis, Delft Univ. of Technology.
Lee, C.-H., J.-W. Kim, and J.-G. Song. 2008. “Punching shear strength and post-punching behavior of CFT column to RC flat plate connections.” J. Constr. Steel Res. 64 (4): 418–428. https://doi.org/10.1016/j.jcsr.2007.08.003.
Lee, J., and G. L. Fenves. 1998. “Plastic-damage model for cyclic loading of concrete structures.” J. Eng. Mech. 124 (8): 892–900. https://doi.org/10.1061/(ASCE)0733-9399(1998)124:8(892).
Lubliner, J., J. Oliver, S. Oller, and E. Onate. 1989. “A plastic-damage model for concrete.” Int. J. Solids Struct. 25 (3): 299–326. https://doi.org/10.1016/0020-7683(89)90050-4.
Ozbolt, J., and R. Eligehausen. 1995. “Size effect in concrete and reinforced concrete structures.” In Proc., 2nd Int. Conf. on Fracture Mechanics of Concrete Structures, 665–674. Freiburg, Germany: AEDIFICATIO Publications.
Yan, P. Y. 2011. “Behaviour of shearhead system between flat reinforced concrete slab and steel tubular column.” Ph.D. thesis, Univ. of Manchester.
Yan, P. Y., and Y. C. Wang. 2014. “Behaviour of a steel tube-RC flat slab shearhead system, structures & buildings.” Proc. Inst. Civ. Eng. Struct. Build. 167 (11): 667–677.
Yan, P. Y., and Y. C. Wang. 2016. “Hybrid steel tubular column/flat slab construction—Development of a shearhead system to improve punching shear resistance.” J. Constr. Steel Res. 119: 154–168. https://doi.org/10.1016/j.jcsr.2015.12.024.
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Published In
Journal of Structural Engineering
Volume 144 • Issue 9 • September 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: May 3, 2017
Accepted: Feb 6, 2018
Published online: Jun 25, 2018
Published in print: Sep 1, 2018
Discussion open until: Nov 25, 2018
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