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PRJ-4422 | Fluid Structure Interaction Simulations for Coastal Structures
PI
Project TypeSimulation
Natural Hazard Type(s)Storm Surge, Flood, Tsunami
Keywordswave action, wave forces, fluid structure interaction, elevated coastal structures, hurricane storm surge, wave action, soil-structure interaction, fluid-structure interaction, light-frame wood construction
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Description:

This project uses multi-physics simulations to study how waves interact with nearshore structures. The simulations account for the deformability of the structural members as well as soil flexibility effects that can be introduced by slender wood pile systems.

Simulation | Understanding Flexibility Effects in the Interaction of Light-Frame Wood Structures with Wave Action
Cite This Data:
Kotzamanis, V., D. Kalliontzis (2024). "Understanding Flexibility Effects in the Interaction of Light-Frame Wood Structures with Wave Action", in Fluid Structure Interaction Simulations for Coastal Structures. DesignSafe-CI. https://doi.org/10.17603/ds2-mqys-n790

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Simulation Type
Author(s);
FacilityUniversity of Houston
Referenced Data
Date Published2024-03-08
DOI10.17603/ds2-mqys-n790
License
 Open Data Commons Attribution
Description:

Hurricane and tsunami events can generate extreme water flows in nearshore regions of the United States with catastrophic consequences to coastal structures. Field records have shown that light-frame wood structures exhibit high vulnerability to wave-induced forces due to their light construction characteristics, featuring flexible connections and slender pile foundation systems. Previous research has studied the behavior of these structures under wave action, but most studies used rigid body modeling, which is shown in this study to be insufficient for capturing the force demand on these structures. Using a fluid-structure interaction (FSI) framework, this research investigated the structural and soil flexibility effects in the interaction between elevated light-frame wood structures and water flows. Study variables included the flexibility of timber-to-timber connections, soil type, pile embedment, wavelength, and wave amplitude. The study concluded that structural and soil responses to water flows can introduce strong coupled motions. Neglecting this coupling effect may underestimate the force demand on the light-frame wood structures by more than 40%. Accounting for both structural and soil flexibilities is necessary to accurately quantify the wave force demand of these structures.

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