01089203

Component

The paper summarizes the experimental work conducted to strengthen steel beams by the use of novel CFRP laminate strips configurations. The paper includes the design of the experimental program and the analytical Finite Element (FE) modeling. The ultimate gain of the beam greatly depends on the configuration of the CFRP laminates and the method of applying the laminates to the steel beam. The testing was conducted for five simply supported steel beams under four-point loading. Verification of the model was performed by comparing the experimental results to the nonlinear FE models. The results will show a significant gain in the beam’s elastic range and ultimate capacity. The main advantages of using CFRP laminates are their lightweight and their durability, which results in ease of handling and maintenance. The conclusion is that the FE model accurately predicts the experimental behavior of the beams strengthened by the CFRP laminates. The developed FE models will be used to perform further parametric studies to test sensitive parameters and analyze rehabilitated steel bridges in future research.

01084478

08-2521

English

15p

2008

Transportation Research Board 87th Annual Meeting

DVD

Figures (7) ; Photos (3) ; References (15) ; Tables (2)

Beams; Bridges; Carbon fibers; Elasticity (Mechanics); Fiber reinforced plastics; Finite element method; Jacketing (Strengthening); Laminates; Rehabilitation; Steel; Structures

Bridges and other structures; Design; Geotechnology; Highways; Materials; I24: Design of Bridges and Retaining Walls; I34: Steels and Metals

Transportation Research Board Annual Meeting 2008 Paper #08-2521

TRIS, TRB

Jan 29 2008 4:55PM