Flexural Behavior of a Carbon Fiber–Reinforced Polymer Prestressed Decked Bulb T-Beam Bridge System
Publication: Journal of Composites for Construction
Volume 17, Issue 4
Abstract
Experimental and numerical investigations were conducted to evaluate the performance of a newly developed bridge system. Through the investigation, a decked bulb T-beam bridge model was constructed, instrumented, and tested under service and ultimate loads. The bridge model had a width of 2.59 m (8.5 ft), an effective span of 9.45 m (31 ft), a depth of 356 mm (14 in.), and was composed of five adjacent decked bulb T-beams. The T-beams were interconnected at their top flanges using 76-mm (3-in.)-wide ultra-high-performance concrete (UHPC) shear key joints and five full-depth equally spaced transverse diaphragms along the span. Each diaphragm was posttensioned with two nonbonded transverse carbon fiber composite cable (CFCC) strands. The investigation revealed that the developed decked bulb T-beam bridge system maintained its structural integrity under service loads with signs of distress in neither the shear key joints nor top flanges. UHPC shear keys with the transverse diaphragms were adequate to achieve monolithic action across the width of the bridge model. In addition, transverse posttensioning forces were effective in restoring the structural integrity of the bridge model when cracks were artificially induced in the shear key joints. At the ultimate limit state the bridge model exhibited compression failure by crushing of the concrete in the top flange. The compression failure was associated with low ductility, a dense cracking pattern, and excessive deflection.
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Acknowledgments
This investigation was sponsored by the following: (1) Transportation Pooled Fund Program (Iowa, Michigan, Minnesota, Wisconsin, and Oregon DOT), United States (study no. TPF-5/254); (2) National Science Foundation, United States (award no. CMMI-0969676); (3) the U.S. Department of Transportation (contract no. DTOS59-06-G-00030); (4) Tokyo Rope Manufacturing Company, Ltd., Japan; (5) Lafarge North America; and (6) Diversified Composites, Inc., Kentucky, United States. The writers gratefully acknowledge their support.
References
ABAQUS 6.11-2 [Computer software]. Dassault Systèmes, Waltham, MA.
ASTM. (2004). “Standard test method for tensile strength of concrete surfaces and the bond strength or tensile strength of concrete repair and overlay materials by direct tension (pull-off method).” C1583-04, West Conshohocken, PA.
ASTM. (2005). “Standard test method for bond strength of epoxy-resin systems used with concrete by slant shear.” C882-05, West Conshohocken, PA.
ASTM. (2007). “Standard test method for flow of hydraulic cement mortar.” C1437-07, West Conshohocken, PA.
ASTM. (2010). “Standard test method for flexural strength of concrete (using simple beam with third-point loading).” C78-10, West Conshohocken, PA.
ASTM. (2011). “Standard test method for splitting tensile strength of cylindrical concrete specimens.” C496/496M-11, West Conshohocken, PA.
ASTM. (2012). “Standard test method for compressive strength of cylindrical concrete specimens.” C39/39M-12, West Conshohocken, PA.
Baah, P. (2012). “Development of innovative CFRP prestressed decked bulb T beam bridge system.” M.S. thesis, Civil Engineering Dept., Lawrence Technological Univ., Southfield, MI.
Bache, H. (1981). “Densified cement ultra-fine particle-based materials.” Proc., 2nd Int. Conf. on Superplasticizers in Concrete, American Concrete Institute, Farmington Hills, MI.
Bhide, S. (2008). “Material usage and condition of existing bridges in the US.”, Portland Cement Association, Skokie, IL.
French, C. E., et al. (2011). “Cast-in-place concrete connections for precast deck systems.”, Washington, DC.
Grace, N., Enomoto, T., Baah, P., and Bebawy, M. (2012a). “Flexural behavior of CFRP precast prestressed decked bulb T-beams.” J. Compos. Constr., 16(3), 225–234.
Grace, N., Jensen, E., and Bebawy, M. (2012b). “Transverse post-tensioning arrangement for side-by-side box-beam bridges.” PCI J., 57(2), 48–63.
Grace, N., Soliman, A. K., Abdel-Sayed, G., and Saleh, K. R. (1998). “Behavior and ductility of simple and continuous FRP reinforced beams.” J. Compos. Constr., 2(4), 186–194.
Graybeal, B. A. (2006). “Structural behavior of ultra-high performance concrete prestressed I-girders.”, Washington, DC.
Graybeal, B. A. (2011). “Fatigue response in bridge deck connection composed of field-cast ultra-high-performance concrete.” Transportation Research Record 2251, Transportation Research Board, Washington, DC, 93–100.
Li, L., Ma, Z. J., and Oesterle, R. G. (2010). “Improved longitudinal joint details in decked bulb tees for accelerated bridge construction: Fatigue evaluation.” J. Bridge. Eng., 15(5), 511–522.
Miller, R. A., Hlavacs, G. M., Long, T., and Greuel, A. (1999). “Full-scale testing of shear keys for adjacent box girder bridges.” PCI J., 44(6), 80–90.
Oesterle, R. G., and Elremaily, A. F. (2009). “Design and construction guidelines for long-span decked precast, prestressed concrete girder bridge.”, Washington, DC.
Owen, C. R. (1987). “Continuity strengthens South Fork Hoh River Bridge replacement.” PCI J., 32(1), 86–103.
Tokyo Rope. (2012). “Technical data on CFCC.” Manufacturer Rep., Tokyo, Japan.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 17 • Issue 4 • August 2013
Pages: 497 - 506
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jul 27, 2012
Accepted: Nov 9, 2012
Published online: Nov 12, 2012
Discussion open until: Apr 12, 2013
Published in print: Aug 1, 2013
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