Guide for Orthotropic Steel Deck Level 1 Design
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2022-12-01
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Abstract:This Guide provides bridge engineers and owners with general information and typical details to help standardize orthotropic steel deck (OSD) bridge design/fabrication to make it more competitive. This document does not intend to set a national standard but to help inform the effort through reduced parametric variations. OSD bridges can be either closed- or open-rib systems, and this Guide begins with background information regarding OSD bridge design. General considerations with respect to OSD bridges are discussed, followed by specific instructions for closed- and open-rib systems including rib geometry, size, and fabrication methods. Suggestions for deck plate selection are provided followed by a discussion of wearing surface types and selection considerations. Lastly, suggestions for floorbeam/diaphragm design are provided. Throughout the document, short summaries on the performance of several in-service OSD bridges are provided.
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