Static Behavior of Noncomposite Concrete Bridge Decks under Concentrated Loads
Publication: Journal of Bridge Engineering
Volume 1, Issue 4
Abstract
Tests were conducted under a concentrated monotonically increasing static wheel load on 1/6.6-scale physical models of three different types of noncomposite deck structure: (1) the entire deck supported on four steel girders; (2) an isolated deck slab region with a width equal to 1/3 of the bridge span; and (3) a 102-mm-wide transverse “beam” deck strip, both simply supported on two opposite edges on adjacent girders. Three reinforcing arrangements for the noncomposite concrete deck are studied: (1) orthotropic steel reinforcement (AASHTO); (2) isotropic steel reinforcement ( Ontario 1983); and (3) “isotropic-0.2%” minimum steel reinforcement. Flexural steel and concrete strain measurements in the “beam” deck strip models are compared with those in the models of the entire bridge deck where combined membrane compression and bending is present. Depending on the degree of the lateral and/or rotational edge restraint of the deck specimens, the ultimate load-carrying capacity of the models of the entire bridge deck ranges from five to 10 times that of the “beam” deck strips. Although some of the deck models failed primarily in flexure, all of them eventually punched through at a maximum deck deflection of less than 50% of the deck thickness.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 1 • Issue 4 • November 1996
Pages: 143 - 154
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Nov 1, 1996
Published in print: Nov 1996
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