Post‐Tensioning Distribution in Composite Bridges
Publication: Journal of Structural Engineering
Volume 112, Issue 11
Abstract
Post‐tensioning can be utilized to increase the flexural strength of beams in single‐span, composite steel beam and concrete deck bridges, even when only deficient exterior beams are post‐tensioned. Distribution of the axial forces and moments caused by eccentric post‐tensioning of the deficient beams must be considered in the design of the strengthening system, however. Finite element models, verified with laboratory and field testing, are used with multiple linear regression to develop design equations for force and moment distribution fractions for four‐beam bridges. The design equations can be used easily by practicing engineers and provide the basis for a strengthening design methodology.
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References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 112 • Issue 11 • November 1986
Pages: 2540 - 2553
Copyright
Copyright © 1986 ASCE.
History
Published online: Nov 1, 1986
Published in print: Nov 1986
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