Nominal Strength of Composite Prestressed Concrete Bridge Deck Panels
Publication: Journal of Structural Engineering
Volume 121, Issue 2
Abstract
Precast prestressed concrete panels have been used as subdecks in bridge construction. To experimentally investigate the nominal flexural and shear strengths of this composite slab system, five full-scale model composite slab specimens were constructed and tested. One specimen modeled bridge deck condition well within a girder span, and the other four specimens represented geometric conditions that occur with skewed concrete diaphragms at 0°, 15°, 30°, and 40°. The slabs were statically loaded through a wheel footprint at preselected locations until failure occurred. To analytically evaluate the nominal strength for these composite slab specimens, yield-line and punching-shear theories were applied to the crack patterns generated during the ultimate load tests. These computations and the observed mode of failure for the specimens indicated that punching shear governed the nominal strength of the slabs. The nominal strength of the slabs significantly exceeded the design load requirements.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 121 • Issue 2 • February 1995
Pages: 307 - 318
Copyright
Copyright © 1995 American Society of Civil Engineers.
History
Published online: Feb 1, 1995
Published in print: Feb 1995
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