Shear Strength Evaluation of Existing Concrete Bridges


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Title: Shear Strength Evaluation of Existing Concrete Bridges

Author(s): Gary J. Klein and Predrag L. Popovic

Publication: Special Publication

Volume: 88


Appears on pages(s): 199-224

Keywords: beams (supports); bridges (structures); cracking (fracturing); deterioration; evaluation; inspection; loads (forces); reinforced concrete; shear strength

Date: 11/1/1985

Because prior AASHTO design codes permitted a much greater shear stress in concrete than allowed by current codes, the shear strength of existing bridges may be questioned. This paper offers an approach to shear strength assessment of bridge beams. The condition of the existing structure, theoretical strength based on recent research, and the unique characteristics of older concrete bridges are considered. Field investigation and rating methods are discussed, and a case study is presented.