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Title: Advanced bridge capacity and structural integrity assessment methodology
Authors: United States. Defense Advanced Research Projects Agency.
University of Illinois at Urbana-Champaign. Dept. of Aerospace Engineering.
University of Illinois at Urbana-Champaign. Department of Civil and Environmental Engineering.
Gries, Matthew B.
Giles, Ryan K.
Kuchma, Daniel A. (Daniel Alexander), 1964-
Spencer, B. F. (Billie Floyd), 1959-
Bergman, Lawrence A.
Wilcoski, James
Keywords: Reinforced concrete bridges
Structural engineering
Load-carrying capacity
Rapid assessment
Military operations
Publisher: Construction Engineering Research Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Description: Technical Report
Abstract: The bridge is a basic element of all surface transportation networks. In military theaters of operation, transportation routes that cross bridges are essential for deploying personnel, supplies, and heavy equipment, as well as for facilitating communications. It is essential that the structural capacity of each bridge along a military route be assessed in order to avoid overloading the bridge or unnecessarily hindering military operations by overestimating or underestimating its capacity. For reinforced concrete structures, information about the number, size, and orientation of steel reinforcement is necessary to make a strength assessment. Since reinforcement is not visible externally, making an accurate assessment without design drawings is extremely difficult. The objective of this project was to develop more reliable means of in-field capacity assessment of reinforced concrete bridges by making improved estimates of the level of longitudinal and shear reinforcement. The proposed assessment procedure is based on comparing measured structural response under controlled loading conditions to predicted structural response from analysis. This report presents results from a preliminary sensitivity study of the analytically predicted response of simply supported reinforced concrete T-beam girders that have varying levels of longitudinal and shear reinforcement.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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