|
|||||
|
|
Experimental Validation of a Shear Stud Connection between Steel Girders and a Fiber-Reinforced Polymer Deck in the Transverse Direction |
|
| Authors: | Franklin L Moon John W Gillespie Jr |
| Affiliation: | 1Assistant Professor, Dept. of Civil, Architectural, and Environmental Engineering, Drexel Univ., Philadelphia, PA 19104. 2Professor, Center for Composite Materials, Dept. of Civil and Environmental Engineering, and Dept. of Material Science Engineering, Univ. of Delaware, Newark, DE 19716. |
| Abstract: | A fiber-reinforced polymer (FRP) deck-to-girder connection was evaluated for fatigue resistance and residual capacity in the transverse direction. The connection consisted of three shear studs cast into a trapezoidal cell of a FRP sandwich deck. Steel spirals were positioned around each shear stud to aid in grout confinement. Test fixturing consisted of multiple girders and tie downs to induce realistic loading of the connection due to wheel loads. The connection was fatigued according to AASHTO LRFD Specifications for 10.5?million?cycles (75?year design life) and tested for residual capacity. The connection survived fatigue testing without failure. The haunch exhibited minimal debonding and cracking. Connection capacity after one lifetime of fatigue cycles exceeded strength limit state requirements. |
| Keywords: | Stub girders Connections Fiber reinforced polymers Bridge decks Fatigue Limit states Cracking |