Experimental Study of In-Plane Shear Behavior of Fiber-Reinforced Concrete Composite Slabs
Publication: Journal of Structural Engineering
Volume 142, Issue 3
Abstract
This study investigates the in-plane shear behavior of composite slabs reinforced with different types of secondary reinforcements. Experimental results of 20 large-scale composite slabs constructed with two different deck profiles (reentrant and trapezoidal) are presented. The slabs were instrumented and tested in a cantilever diaphragm configuration under monotonic in-plane shear to assess and compare the effect of secondary reinforcement on their in-plane shear capacity. Five types of secondary reinforcements were considered: Conventional WWM of sizes A142 and A98, synthetic macrofibers at dosage rates of 3.0 and , and hooked-end steel fibers at a dosage rate of . Tests were carried out for both strong and weak orientation of decking. The load-deflection and load-strain responses were measured, and the cracking pattern and sequence were observed. The results showed that fibers notably improved the in-plane shear behavior (strength and ductility) of the composite slabs. Steel mesh of size A142, synthetic macrofibers at a dosage rate of , and steel fibers at a dosage rate of all provided comparable in-plane shear capacity and ductility. Therefore, they can be viewed as equivalent secondary reinforcement systems in composite slabs. The results also revealed that the deterioration of the interfacial bond between concrete and steel deck was not influenced by the type of the secondary reinforcement.
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Acknowledgments
Support for this project is partly provided by the “Sustainable Construction Materials and Structural Systems” research group at the University of Sharjah. The authors would also like to thank Emirates Stones Company Ltd, Sharjah, who supported this project during the construction stage. In addition, the authors want to express their gratitude to Grace Middle East, Dubai-UAE, for providing the fibers and to Richard Lee Steel Decking, U.K., for supplying the steel decking.
References
Abdullah, R., and Easterling, W. (2007). “Determination of composite slab strength using a new elemental test method.” J. Struct. Eng., 1268–1277.
ACI (American Concrete Institute). (2011). “Building code requirements for structural concrete and commentary.” ACI 318-11, Farmington Hills, MI.
AISC (American Institute of Steel Construction). (2010). “Specifications for structural steel buildings.” AISC 360-10, Chicago.
ANSI/SDI (American National Standards Institute/Steel Deck Institute). (2011). “Standard for composite steel floor-deck slabs.” ANSI/SDI C-2011, Washington, DC.
BSI (British Standards Institute). (1983). “Testing concrete, Part 116: Method for determination of compressive strength of concrete cubes.” BS 1881-116, London.
BSI (British Standards Institute). (2000). “Continuously hot-dip zinc coated structural steel strips and sheets.” BS EN 10147, London.
BSI (British Standards Institute). (2009). “Mechanical properties of fasteners made of carbon steel and alloy steel—Part I: Bolts, screws and studs with specified property classes—Coarse thread and fine pitch thread.” BS EN ISO 898-1, London.
BSI (British Standards Institute). (2014). “Fire resistance tests for load bearing elements: Floors and roofs.” BS EN 1365-2:2014, London.
Chen, S., Shi, X., and Qiu, Z. (2011). “Shear bond failure in composite slabs—A detailed experimental study.” Steel Compos. Struct., 11(3), 233–250.
Cifuentes, H., and Medina, F. (2013). “Experimental study on shear bond behavior of composite slabs according to Eurocode 4.” J. Constr. Steel Res., 82(2013), 99–110.
Davies, J. M., and Fisher, J. (1979). “The diaphragm action of composite slabs.” Inst. Civ. Eng., 67(4), 891–906.
Easterling, W. S., and Porter, M. L. (1988). “Behavior, analysis and design of steel-deck-reinforced concrete diaphragms.”, Iowa State Univ., Engineering Research Institute, Ames, IA.
Easterling, W. S., and Porter, M. L. (1994). “Steel deck reinforced concrete diaphragms-I.” J. Struct. Eng., 560–576.
Easterling, W. S., and Young, C. S. (1992). “Strength of composite slabs.” J. Struct. Eng., 2370–2389.
Guirola, M. (2001). “Strength and performance of fiber-reinforced concrete composite slabs.” M.S. thesis, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.
Hedaoo, N. A., Gupta, L. M., and Ronghe, G. N. (2012). “Design of composite slabs with profiled steel decking: A comparison between experimental and analytical studies.” Int. J. Adv. Struct. Eng., 3(1), 1–15.
James, L., and Easterling, W. S. (2006). “Structural performance of fiber reinforced and welded wire fabric reinforced composite slabs.”, Virginia Polytechnic Institute and State Univ., Blacksburg, VA.
JSCE (Japan Society of Civil Engineers). (1984). “Methods of tests for flexural strength and flexural toughness of steel fiber reinforced concrete.”, Concrete Library International, 58–61.
Lopes, E., and Simoes, R. (2008). “Experimental and analytical behavior of composite slabs.” Steel Compos. Struct., 8(5), 361–388.
Luttrell, L. D. (1971). “Shear diaphragms with lightweight concrete fill.” Proc., 1st Specialty Conf. on Cold-Formed Steel Structures, Univ. of Missouri-Rolla, Rolla, MO, 111–117.
Saravanan, M., Marimuthu, V., Prabha, P., Arul Jayachandran, S., and Datta, D. (2012). “Experimental investigations on composite slabs to evaluate longitudinal shear strength.” Steel Compos. Struct., 13(5), 489–500.
Ulreich, G., and Rieder, K.-A. (2009). “Time dependent behavior of fiber-reinforced concrete-fundamentals and applications.” 5th Central European Congress on Concrete Engineering, Austrian Society for Concrete and Construction Technology, Baden, 109–114.
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© 2015 American Society of Civil Engineers.
History
Received: Sep 24, 2014
Accepted: Aug 11, 2015
Published online: Oct 30, 2015
Published in print: Mar 1, 2016
Discussion open until: Mar 30, 2016
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