Modeling of Flexural Behavior and Punching Shear of Concrete Bridge Decks with FRP Stay-in-Place Forms Using the Theory of Plates
Publication: Journal of Engineering Mechanics
Volume 140, Issue 12
Abstract
A robust analytical model for predicting full response and ultimate load of concrete bridge decks constructed with fiber-reinforced polymer (FRP) stay-in-place (SIP) structural forms is presented. It adopts the plate theory to establish surface deflections, while incorporating concrete nonlinearity in compression and cracking in tension, as well as the degree of bond between the FRP SIP form and the concrete. The model accounts for various boundary conditions at the edges of the deck in both directions, including both finite and infinite width in the direction of traffic, and either fixed or hinged conditions in the other direction, depending on the connection to the support girders. A punching shear failure criterion was incorporated to predict the ultimate load. The model was validated against a large experimental database, and reasonable agreement was observed. The average percent difference in ultimate loads was 5.5%. The model was then used in a parametric study to assess the FRP reinforcement ratio in terms of the FRP plate thickness, the width of the deck parallel to traffic, and the span of the deck, which is the girder spacing. It was shown that reducing the FRP reinforcement ratio from 10.7 to 2.7% results in about a 20% reduction in punching shear ultimate load. The ultimate loads obtained for decks with (width/span) aspect ratios of 2.73, 1.33, 0.87, and 0.55 were 100, 94, 83, and 73%, respectively, of the ultimate load of the real condition of infinite width. Finally, the punching shear load decreased by about 18% as the deck span-to-depth ratio increased from 10 to 16.5.
Get full access to this article
View all available purchase options and get full access to this article.
References
AASHTO. (2007). AASHTO LRFD bridge design specifications, SI units, 4th Ed., Washington, DC.
Alagusundaramoorthy, P., Harik, I. E., and Choo, C. C. (2006). “Structural behavior of FRP composite bridge deck panels.” J. Bridge Eng., 384–393.
Batchelor, B., Hewitt, B., Csagoly, P., and Holowka, M. (1978). “Investigation of the ultimate strength of deck slabs of composite steel/concrete bridges.” Transportation Research Record 664, Transportation Research Board, Washington, DC, 162–170.
Canadian Standards Association (CSA). (2004). “Design of concrete structures.” A23.3-04, Mississauga, ON, Canada.
Canadian Standards Association (CSA). (2006). “Canadian highway bridge design code.” S6-06, Mississauga, ON, Canada.
Collins, M., and Mitchell, D. (1997). Prestressed concrete structures, Response Publications, Toronto.
Dieter, D. A. (2002). “Experimental and analytical study of concrete bridge decks constructed with FRP stay-in-place forms and FRP grid reinforcing.” M.Sc. thesis, Univ. of Wisconsin, Madison, WI.
Fam, A., and Nelson, M. (2012). “New bridge deck cast onto corrugated GFRP stay-in-place structural forms with interlocking connections.” J. Compos. Constr., 16(1), 110–117.
Honickman, H. (2008). “Pultruded GFRP sections as stay-in-place structural open formwork for concrete slabs and girders.” M.Sc. thesis, Queen’s Univ., Kingston, ON, Canada.
Kinnunen, S., and Nylander, H. (1960). Punching of concrete slabs without shear reinforcement, Vol. 158, Royal Institute of Technology, Stockholm, Sweden.
MATLAB [Computer software]. Natick, MA, MathWorks.
Mufti, A., and Newhook, J. (1998). “Punching shear strength of restrained concrete bridge deck slabs.” ACI Struct. J., 95(4), 375–381.
Muttoni, A. (2003). “Shear and punching strength of slabs without shear reinforcement.” Beton- Stahlbetonbau, 98(2), 74–84 (in German).
Muttoni, A. (2008). “Punching shear strength of reinforced concrete slabs without transverse reinforcement.” ACI Struct. J., 105(4), 440–450.
Nelson, M., Beriker, E., and Fam, A. (2014). “Splices of FRP stay-in-place structural forms in concrete bridge decks.” J. Compos. Constr., 04014001.
Nelson, M., Eldridge, A., and Fam, A. (2013). “The effects of splices and bond on performance of bridge deck with FRP stay-in-place forms at various boundary conditions.” Eng. Struct., 56(Nov), 509–516.
Nelson, M., and Fam, A. (2013). “Structural GFRP permanent forms with T-shape ribs for bridge decks supported by precast concrete girders.” J. Bridge Eng., 813–826.
Nelson, M., and Fam, A. (2014). “Full bridge testing at scale constructed with novel FRP stay-in-place structural forms for concrete deck.” Constr. Build. Mater., 50(15), 368–376.
Patrick, M. (1994). “Partial shear connection design of composite slabs.” Eng. Struct., 16(5), 348–362.
Timoshenko, S., and Woinowsky-Krieger, S. (1959). Theory of plates and shells, McGraw Hill, New York.
Vecchio, F. J., and Collins, M. P. (1986). “The modified compression-field theory for reinforced concrete elements subjected to shear.” ACI J., 83(Mar), 219–231.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 140 • Issue 12 • December 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Jul 9, 2013
Accepted: Apr 24, 2014
Published online: May 22, 2014
Discussion open until: Oct 22, 2014
Published in print: Dec 1, 2014
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.