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Journal ArticleDOI

Numerical Modeling of Dynamic Wave Force Acting on Escambia Bay Bridge Deck during Hurricane Ivan

TLDR
In this article, a numerical wave load model based on the incompressible Reynolds averaged Navier-Stokes equations and k-e equations has been used to investigate dynamic wave forces exerted on the bridge deck.
Abstract
Bridge decks in Escambia Bay were damaged during the storm surge of Hurricane Ivan in 2004. In this study, a numerical wave-load model based on the incompressible Reynolds averaged Navier–Stokes equations and k-e equations has been used to investigate dynamic wave forces exerted on the bridge deck. The volume of fluid method is adopted in the model to describe dynamic free surface, which is capable of simulating complex discontinuous free surface during wave breaking and wave-deck interactions. The model was satisfactorily tested against experimental data of uplift wave forces on horizontal plates. The validated model was applied to investigate wave forces acting on the bridge deck in Escambia Bay in the case of Hurricane Ivan. The time history of wave profiles, turbulent velocity fields, and dynamic uplift and horizontal forces acting on the full-scale bridge deck were simulated and analyzed. Results indicate that, during the storm surge event of Hurricane Ivan, the maximum uplifting wave forces were lar...

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Citations
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Journal ArticleDOI

State-of-the-Art Review on the Causes and Mechanisms of Bridge Collapse

TL;DR: In this article, the main causes and mechanisms of bridge collapse are reviewed and some relevant measures adopted in the current practices are discussed, and a concise but comprehensive summary of information needed by researchers and engineers to understand the collapse mechanisms of the major bridge types is provided.
Journal ArticleDOI

Hydrodynamic Experiment of the Wave Force Acting on the Superstructures of Coastal Bridges

TL;DR: In this paper, a hydrodynamic experiment was conducted to examine the wave forces acting on the superstructure of coastal highway bridges to gain insight into the mechanical characteristics of wave forces caused by the combination of storm surges and huge waves.
Journal ArticleDOI

Impact of 2008 Hurricane Ike on Bridge Infrastructure in the Houston/Galveston Region

TL;DR: In this article, the authors present the lessons learned from damage to bridge infrastructure in the Houston/Galveston region observed after Hurricane Ike, with comparisons to empirical evidence from past hurricane events on common failure modes and design details affecting bridge performance under hurricane-induced loads.
Journal ArticleDOI

Review of Wave Loads on Coastal Bridge Decks

TL;DR: A review of the key studies on wave loads on the coastal bridge decks, including those in the past and very recently, is presented in this article, where the pioneering works that have significantly improved our understanding of the problem are highlighted, and suggestions for future studies are provided.
Journal ArticleDOI

Probabilistic Modeling of Bridge Deck Unseating during Hurricane Events

TL;DR: In this article, the authors introduced a computationally efficient methodology to assess the fragility, or conditional failure probability, of bridges, targeting the deck shifting or unseating failure mode, which is a predominant severe mode of failure for vast inventories of simply supported span bridges.
References
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Journal ArticleDOI

The numerical computation of turbulent flows

TL;DR: In this paper, the authors present a review of the applicability and applicability of numerical predictions of turbulent flow, and advocate that computational economy, range of applicability, and physical realism are best served by turbulence models in which the magnitudes of two turbulence quantities, the turbulence kinetic energy k and its dissipation rate ϵ, are calculated from transport equations solved simultaneously with those governing the mean flow behaviour.
Journal ArticleDOI

Volume of fluid (VOF) method for the dynamics of free boundaries

TL;DR: In this paper, the concept of a fractional volume of fluid (VOF) has been used to approximate free boundaries in finite-difference numerical simulations, which is shown to be more flexible and efficient than other methods for treating complicated free boundary configurations.
Journal ArticleDOI

Numerical solution of the Navier-Stokes equations

TL;DR: In this paper, a finite-difference method for solving the time-dependent Navier-Stokes equations for an incompressible fluid is introduced, which is equally applicable to problems in two and three space dimensions.
Book

Marks' Standard Handbook for Mechanical Engineers

TL;DR: The preface to the first edition of Symbols and ABBREVIATIONS outlines the aims and objectives of the second edition, which aims to provide a “robust” discussion of the history and future prospects of dynamical engineering.
Journal ArticleDOI

Open boundaries in short wave simulations — A new approach

TL;DR: In this paper, a new way of implementing radiation boundary conditions in finite difference schemes is reported, where instead of prescribing the incident field at the model boundary, waves are generated inside the boundary.
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