Finite-Element Analysis of Tapered Steel and Fiber-Reinforced Plastic Bridge Camera Poles
Publication: Journal of Bridge Engineering
Volume 11, Issue 5
Abstract
This paper presents experimental and finite element investigations of the load-deformation behavior of tapered steel and fiber-reinforced plastic (FRP) bridge camera poles subjected to cantilever bending type loading. Three full-scale experimental tests are conducted on one tapered octagonal steel cross section and two FRP circular cross-section poles to identify their load deformation characteristics. Three-dimensional isoparametric finite-element models of the poles are developed by considering the nonlinear coupling behavior between material, contact, and geometric effects. The elastoplastic solid elements with eight nodes are employed for the effective three-dimensional finite-element modeling and analysis. A surface-to-surface contact algorithm is used to simulate the interaction between contact surfaces. An energy-based convergence criterion is adopted to obtain the converged coupled nonlinear solutions. The obtained load-deformation results from finite-element analyses are compared with those of the experiments. The behavior of the finite-element models is examined by observing the effects of individual geometric variables on the load-deformation characteristics of the poles.
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Acknowledgments
The financial support of the Texas Department of Transportation is gratefully acknowledged. The authors wish to express appreciations to JEM Engineering of Tulsa, Oklahoma, for providing the steel poles and Shakespeare Composite of Newberry, South Carolina, for providing the composite poles test specimens.
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Information & Authors
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Published In
Journal of Bridge Engineering
Volume 11 • Issue 5 • September 2006
Pages: 611 - 617
Copyright
© 2006 ASCE.
History
Received: Apr 14, 2005
Accepted: Sep 27, 2005
Published online: Sep 1, 2006
Published in print: Sep 2006
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