01365701

Component

Fiber Reinforced Polymer (FRP) is a relatively new material used in the field of civil engineering. For other materials used in bridge design, American Association of State Highway and Transportation Officials (AASHTO) provides load distributions factors for determining how much load a longitudinal beam supporting a bridge deck should be designed to hold. Since FRP is a relatively new material used for bridge design, there are no provisions in the AASHTO Specifications that provide a load distribution when designing beams supporting an FRP deck. FRP hollow-core (honeycomb) deck panels, measuring 1.83 m (6 ft) x 7 2.59 m (8.5 ft), were loaded and analyzed at Kansas State University. The research conducted provides insight towards a conservative load distribution to assist engineers in future bridge designs with FRP decks. Two support conditions were used during testing. One configuration consisted of a continuous panel supported by 4 beams with 0.76 m (2.5 ft) and 1.07 m (3.5 ft) steel beam spacing. The second support condition was a simply supported panel spanning 1.83 m (6 ft) with a 0.76 m (2.5 ft) cantilever on one side. Strain gauges were mounted at mid-span of each beam. After testing was completed, conservative design factors were determined through data analysis for the FRP deck. These factors are S/5.05 for the simply supported panel and S/4.4 for the continuous panel, where “S” is the support beam spacing in feet.

This paper was sponsored by TRB committee AFF80 Structural Fiber Reinforced Polymers

01362476

12-3377

English

15p

2012

Transportation Research Board 91st Annual Meeting

Digital/other

Figures; References; Tables

Beams; Bridge decks; Fiber reinforced polymers; Honeycomb structures; Load tests; Load transfer; Steel bridges; Strain gages

Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls

Transportation Research Board Annual Meeting 2012 Paper #12-3377

TRIS, TRB

Feb 8 2012 5:16PM