Analytical solution of hurricane wave forces acting on submerged bridge decks

Guo, Anxin; Fang, Qinghe; Li, Hui

doi:10.1016/j.oceaneng.2015.08.018

Cited by 41 publications

(25 citation statements)

References 16 publications

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“…Similar approach was used by, e.g., McIver (1985); Liu and Iskandarani (1991); Kojima et al (1994), mainly focusing on the wave diffraction by the submerged plate. By use of an eigenfunction expansion method, Guo et al (2015b) solved the velocity potential to obtain linear wave loads on a fully submerged bridge deck.…”

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confidence: 99%

Parametric study of nonlinear wave loads on submerged decks in shallow water

Hayatdavoodi

Treichel

Ertekin

2019

Journal of Fluids and Structures

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This study is concerned with calculations of nonlinear wave loads on submerged, horizontal decks in shallow water. Solitary and cnoidal wave loads on submerged decks are determined by use of the Level I Green-Naghdi (GN) equations. Results of the GN equations are compared with the linear theory, CFD, and with available laboratory measurements. Variation of the horizontal and vertical wave-induced loads and the overturning moment on submerged decks is studied through an extensive parametric study. In total, 240 cases are considered for cnoidal waves and 84 cases for solitary waves. The variable parameters include the wave height, wave period, deck submergence depth and deck length. Based on the parametric study results, two empirical, design-type equations are suggested for estimating the vertical and horizontal forces on submerged decks. Results of the empirical equations are compared with the available laboratory measurements and CFD calculations and good agreement is observed. Examples are provided to demonstrate the use of the empirical equations for prototype cases. The parametric study and the empirical equations provide engineers with the preliminary determination of wave loads on submerged decks.

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confidence: 99%

Parametric study of nonlinear wave loads on submerged decks in shallow water

Hayatdavoodi

Treichel

Ertekin

2019

Journal of Fluids and Structures

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“…These empirical equations are mostly based on experimental tests and numerical simulation results and only aim at some wave parameters, specific structural forms, or several submerged states, which cannot guarantee the accuracy of estimation results beyond the application scope. Thus, the classic method named potential flow theory that used to analyze the wave properties and wave forces for the structure under gravity waves was introduced by Guo et al (2015b) to estimate the wave forces on the T-type girder superstructures. The accuracy and efficiency of the proposed analytical method were validated using two large scale experimental tests in their study.…”

Section: Introductionmentioning

confidence: 99%

Study of wave forces acting on the box-girder superstructure of coastal bridges in the submerged condition based on potential flow theory

Huang

Ren

Cui

et al. 2020

ABEN

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The box-girder superstructure of coastal bridges is vulnerable to wave-induced damage in the case of small clearances. The analytical method for estimating the wave forces on the box-girder superstructure of coastal bridges is proposed based on the potential flow theory in this paper. The two-dimension problem of the box-girder superstructure under the wave action is defined with some necessary simplifications first. Then, the analytical solutions are solved by the eigenfunction matching method, and the wave force on the submerged box-girder superstructure is calculated using the Bernoulli principle. After validating the accuracy of the proposed method by previous calculations and the experimental test, the influences of the girder type and structural configuration on the wave forces of submerged box-girder are conducted using the proposed analytical method. The results show that the girder type has a significant effect on the wave forces of the submerged superstructure, and the influence of various structural parameters should be considered comprehensively in the structural safety design under wave actions. The results of the present study can provide a useful reference for the estimation of wave forces and the structural design of the box-girder superstructure of coastal bridges.

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“…Furthermore, Wu et al [15] analysed the wave excited response of an elastic floating box by the eigenfunction expansion-matching method. Inspired by existing successful application, the potential flow method is broadened to investigate the wave scattering and radiation problem of more complex structures, such as submerged decks [16,17], complex rectangular floaters [18], rigid body with elastic plates [19], perforated walls [20], bottom step [21], and, most recently, T-shaped floating breakwater [22].…”

Section: Introductionmentioning

confidence: 99%

Analytical and Experimental Study of Focused Wave Action on a Partially Immersed Box

Fang

Guo

2019

Mathematical Problems in Engineering

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Focused wave is a practical laboratory method for reproducing extreme waves that cause catastrophic damage to marine and coastal structures. This paper presents a simple and efficient analytical method for predicting the hydrodynamic pressure and wave forces acting on a partially immersed box when subjected to a focused wave group attack. The boundary value issue of the physical problem is first investigated to derive an analytical formula based on potential flow theory and the matching eigenfunction method. Thereafter, the test data from a hydrodynamic experiment is used to verify the accuracy of the proposed analytical model. Using the validated analytical model, a parametric analysis is conducted to gain insight into the effects of the structural configuration and wave properties on the pressure and wave forces. It is observed that the hydrodynamic pressure on the offshore side plate, horizontal wave force, and moment are notably influenced by the structure breadth and draft. A focused wave with a lower peak frequency and higher focused amplitude is found to exert greater wave forces on the partially immersed box. The paper shows the value of linear wave theory for wave loads prediction even for focused waves although with some limitations.

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Analytical solution of hurricane wave forces acting on submerged bridge decks

Cited by 41 publications

References 16 publications

Parametric study of nonlinear wave loads on submerged decks in shallow water

Parametric study of nonlinear wave loads on submerged decks in shallow water

Study of wave forces acting on the box-girder superstructure of coastal bridges in the submerged condition based on potential flow theory

Analytical and Experimental Study of Focused Wave Action on a Partially Immersed Box

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