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Service Load Effective Compression Flange Width in Fiber Reinforced Polymer Deck Systems Acting Compositely with Steel Stringers |
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| Authors: | D C Keelor Y Luo C J Earls W Yulismana |
| Affiliation: | 1Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Pittsburgh, 936 Benedum Hall, Pittsburgh, PA?15261. 2Associate Professor and William Kelper Whiteford Faculty Fellow, Dept. of Civil and Environmental Engineering, Univ. of Pittsburgh, 936 Benedum Hall, Pittsburgh, PA?15261. 3Doctoral Student, Dept. of Civil and Environmental Engineering, Univ. of Pittsburgh, 936 Benedum Hall, Pittsburgh, PA?15261. |
| Abstract: | This paper reports on the field study of a steel stringer-fiber reinforced polymer (FRP) deck composite bridge in Pennsylvania. The objective of the study is to assess the effective compression flange width in the FRP deck and floor systems when they act compositely with underlying steel girders at service conditions. The research results reported herein support the notion of employing a design approach, for both interior and exterior girders of a composite floor system, that is philosophically consistent with current practice related to steel girders acting compositely with concrete decking. It appears from the results presented herein that FRP decks and floors acting compositely with underlying steel girders exhibit an effective width that is close to the actual girder spacing for interior beams, and approximately one-half this value for exterior beams. |
| Keywords: | Fiber reinforced polymers Live loads Deflection Service loads Bridge decks Pennsylvania Composite structures Effective width |