RESEARCH ARTICLE


Transportation Optimization of Ribbon Floating Bridges: Analytical and Experimental Investigation



Giannin Viecili1, Abd El Halim Omar Abd El Halim*, Abass Braimah 1, Osama El-Desouky 2
1 Civil and Environmental Engineering Department Carleton University, 1125 Colonel By Drive, Ottawa, ON, Canada, K1S 5B6
2 Civil Engineering Department, Military Technical College, Cairo, Egypt


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Creative Commons License
© 2014 Viecili et al;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Civil and Environmental Engineering Department, Carleton University, 1125 Colonel By Drive, Ottawa, ON, Canada, K1S 5B6; Tel.: (613) 520-2600; Ext: 3393; Fax: (613) 520-3951; E-mail: ahalim@ccs.carleton.ca


Abstract

Floating bridges are an economical and practical alternative for crossing water obstacles, especially in times of emergencies and conflicts. Ribbon pontoon floating bridges are a special type of floating bridge designed, built, stockpiled and deployed by the military and emergency management organizations in times of need. They are light-weight, fast to erect, and use the buoyancy of water to aid in supporting their self-weight and traffic loads imposed on the bridge. With increasing vehicular weights and fast bridge traversing time requirements, it has become necessary to develop reliable analytical tools capable of designing and analyzing floating bridges. It is critical to ensure that ribbon pontoon floating bridges can accommodate heavier vehicles, and at the same time reduce the spacing between successive vehicles to achieve greater transportation and economic efficiency. This paper presents the outline and results of an analytical and experimental research program designed to study the dynamic behavior of ribbon pontoon floating bridges under two-axle vehicular loading. An innovative experimental model was designed, constructed, and used in the experimental study. The developed analytical model predicted, with reasonable accuracy, maximum bridge displacements at different vehicle speeds and weights when compared with the experimental results.

Keywords: Floating bridge, pontoon, numerical analysis, experimental investigation of pontoon bridge, buoyancy, MLC.