Vulnerability assessment of coastal bridges on Oahu impacted by storm surge and waves

Hayatdavoodi, Masoud; Ertekin, R. Cengiz; Robertson, Ian; Riggs, H. R.

doi:10.1007/s11069-015-1896-2

Cited by 20 publications

(6 citation statements)

References 29 publications

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“…The Boussinesq equations were used by, for example, Wang et al [71] to study solitary wave scattering by a vertical cylinder, by Nadiga et al [47] to study wave diffraction due to an uneven bottom, and by Schmitt et al [60] to study wave loads on a bottom hinged oscillating wave converter. The Level I Green-Naghdi equations are used, for example, to determine the hydroelastic response of VLFS to solitary and cnoidal waves by Ertekin and Kim [14], Ertekin et al [20], Xia et al [78,79], Ertekin and Xia [16], and by Demirbilek and Webster [10], Ertekin and Sundararaghavan [15] to study refraction and diffraction of nonlinear waves in coastal waters and to study solitary and cnoidal wave loads on horizontal decks by Hayatdavoodi and Ertekin [30][31][32], Hayatdavoodi et al [33]. Further discussion on the recent developments on the Green-Naghdi equations, with comparisons between high-level equations and laboratory experiments, can be found in Kim et al [38], Ertekin et al [21], Zhao et al [83][84][85], among others.…”

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confidence: 99%

Diffraction of cnoidal waves by vertical cylinders in shallow water

Hayatdavoodi

Neill

Ertekin

2018

Theor. Comput. Fluid Dyn.

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Diffraction of nonlinear waves by single or multiple in-line vertical cylinders in shallow water is studied by use of different nonlinear, shallow-water wave theories. The fixed, in-line, vertical circular cylinders extend from the free surface to the seafloor and are located in a row parallel to the incident wave direction. The wave-structure interaction problem is studied by use of the nonlinear generalized Boussinesq equations, the Green-Naghdi shallow-water wave equations, and the linearized version of the shallow-water wave equations. The wave-induced force and moment of the Green-Naghdi and the Boussinesq equations are presented when the incoming waves are cnoidal, and the forces are compared with the experimental data when available. Results of the linearized equations are compared with the nonlinear results. It is observed that nonlinearity is very important in the calculation of the wave loads on circular cylinders in shallow water. The variation of wave loads with wave height, wavelength and the spacing between cylinders is studied. Effect of the neighboring cylinders, and the shielding effect of upwave cylinders on the wave-induced loads on downwave cylinders are discussed.

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confidence: 99%

Diffraction of cnoidal waves by vertical cylinders in shallow water

Hayatdavoodi

Neill

Ertekin

2018

Theor. Comput. Fluid Dyn.

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“…Since a large number of coastal bridges were destroyed in the coastal area of the Gulf of Mexica during Hurricane Ivan and Katrina, the wave forces and vulnerability analysis of coastal bridges under the action of extreme waves have been investigated. Different from the box-girder superstructures studied in this paper, the previous research has paid more attention to the superstructure with T-type girders commonly seen along with the coastal areas of the United States (Hayatdavoodi et al 2015;Qu et al 2017;Fang et al 2019a). Guo et al (2015b) estimated the wave forces acting on the submerged bridge superstructure with T-type girders during a hurricane based on the potential flow method.…”

Section: Effect Of the Girder Typementioning

confidence: 96%

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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“…More discussion about various forms of the GN equations can be found in . See Hayatdavoodi et al (2015) and Hayatdavoodi et al (2019) for practical applications of the GN equations on wave loads on structures, (Wang et al, 2020b) and (Zhao et al, 2020) for nonlinear wave-current interaction by the GN equations, subjects of interest to this study.…”

Section: The Governing Equationsmentioning

confidence: 99%

Drift of elastic floating ice sheets by waves and current: Multiple sheets

2022

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A nonlinear theoretical model for deformations, oscillations, and drift motions of multiple elastic ice sheets in shallow waters due to combined nonlinear waves and uniform current is presented. The model is based on the Green–Naghdi theory for the fluid motion and the thin plate theory for the deformation of the ice sheets. In principle, there are N number of the floating sheets with arbitrary lengths, drafts, and rigidities, which may be located at arbitrary distances from each other. Nonlinear waves of solitary and cnoidal types are considered, and there are no restrictions on the wave properties (wave height or wave period). The sheets, located at different positions, are shown to drift with different speeds, but surge in most of the wave conditions with equal amplitudes. It is shown systematically that wavelength and spacing between the sheets are the critical parameters determining the drift response of a set of freely floating ice sheets. When wavelength is equal to the distance between the centers of the sheets, they bend and drift in resonance, causing the largest wave reflection. The ambient current is found to affect the drift motion of the sheets nonlinearly. This work complements the part I paper of the same title, where drift motion of a single ice sheet was investigated.

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Vulnerability assessment of coastal bridges on Oahu impacted by storm surge and waves

Cited by 20 publications

References 29 publications

Diffraction of cnoidal waves by vertical cylinders in shallow water

Diffraction of cnoidal waves by vertical cylinders 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

Drift of elastic floating ice sheets by waves and current: Multiple sheets

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