Code Formulas for Ship-Impact Design of Bridges
Publication: Journal of Bridge Engineering
Volume 17, Issue 4
Abstract
Four finite-element models of ships with deadweight tonnage varying from 3,000 to 50,000 t are developed for numerical collision simulation. The time histories of ship collisions against rigid walls are obtained using the software LS-DYNA. Equivalent static loading is determined, and simplified formulas are developed through a fitting procedure as indicated by the data from the numerical simulations. Codified formulations from AASHTO and other design specifications are compared with the simplified formulas. The geometric effects of the bridge foundation on the ship impact force are investigated with an example pile cap. A geometric modification factor is proposed for an ideal rectangular block to modify ship impact forces estimated by code formulas.
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References
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Information
Published In
Journal of Bridge Engineering
Volume 17 • Issue 4 • July 2012
Pages: 599 - 606
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Oct 11, 2010
Accepted: Jul 26, 2011
Published online: Jul 27, 2011
Published in print: Jul 1, 2012
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