A three-dimensional computational analysis of bridges subjected to monochromatic wave attack
Document Type
Article
Publication Date
5-1-2018
Abstract
A modeled bridge subjected to monochromatic wave train attack was computationally modeled in three dimensions using commercially available software. A number of slightly different geometric variations were computed to learn more about the high-frequency forcing component and to further investigate venting as a mitigation procedure for low lying bridges vulnerable to wave attack. Results appeared to show that the high-frequency component is the result of a combination of reflective effects and trapped air. Additionally, the vertical quasi-static force also appears to be partially caused by trapped air. Transverse venting was investigated as a means to reduce high-frequency forces on the bridges, and these measures appear to be highly effective. Finally a two-dimensional comparison was conducted. Results appear to indicate that while two-dimensional modeling provides valuable insight into the physics associated with this problem, it may miss effects due to lateral air movement.
Publication Title
Journal of Fluids and Structures
Volume
79
First Page
76
Last Page
93
Digital Object Identifier (DOI)
10.1016/j.jfluidstructs.2018.02.001
ISSN
08899746
E-ISSN
10958622
Citation Information
Crowley, Robeck, C., & Dompe, P. (2018). A three-dimensional computational analysis of bridges subjected to monochromatic wave attack. Journal of Fluids and Structures, 79, 76–93. https://doi.org/10.1016/j.jfluidstructs.2018.02.001