Tsunami-Like Wave-Induced Lateral and Uplift Pressures and Forces on an Elevated Coastal Structure

Alam, Md. Shabbir; Winter, Andrew O.; Galant, Glen; Shekhar, Krishnendu; Barbosa, André R.; Motley, Michael R.; Eberhard, Marc O.; Cox, Daniel T.; Arduino, Pedro; Lomónaco, Pedro

doi:10.1061/(asce)ww.1943-5460.0000562

Cited by 23 publications

(8 citation statements)

References 37 publications

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“…Since these authors compared a slab-on-grade and an elevated structure, the focus of this study was on the evaluation of soft-storey failures, which can occur in hurricane but also in tsunami conditions. Vertical hydrostatic and hydrodynamic loads become a significant concern in the design of elevated structures (Moon et al, 2019;Alam et al, 2020;Winter et al, 2020;Krautwald et al, 2022), with additional failure mechanisms depending on their architectonical features such as girders or floor joists (Duncan et al, 2021;Krautwald et al, 2021). In contrast, the present study considers other failure mechanisms, which are associated with a rapid, impulse-type loading that is present when large tsunami waves with considerable duration strike.…”

Section: Effect Of Load Historymentioning

confidence: 99%

Collapse processes and associated loading of square light-frame timber structures due to bore-type waves

Krautwald

Häfen²,

Niebuhr³

et al. 2022

Coastal Engineering

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Section: Effect Of Load Historymentioning

confidence: 99%

Collapse processes and associated loading of square light-frame timber structures due to bore-type waves

Krautwald

Häfen²,

Niebuhr³

et al. 2022

Coastal Engineering

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“…24 Numerous laboratory experiments and numerical simulations have quantitatively studied the pressure distribution and force of tsunami flows on structures. [25][26][27][28] Researchers at the Hinsdale Wave Research Laboratory (HWRL) at Oregon State University conducted extensive largescale physical model experiments on elevated structures subjected to storm waves, surges, and tsunami-like waves. 26,[29][30][31] Kihara et al [32][33][34] conducted a series of physical model experiments at the Central Research Institute of the Electric Power Industry (CRIEPI, Japan) using a large wave flume to produce tsunami inundations and studied their impacts on complex topographies and buildings.…”

Section: Introductionmentioning

confidence: 99%

“…24 Numerous laboratory experiments and numerical simulations have quantitatively studied the pressure distribution and force of tsunami flows on structures. 25–28 Researchers at the Hinsdale Wave Research Laboratory (HWRL) at Oregon State University conducted extensive large-scale physical model experiments on elevated structures subjected to storm waves, surges, and tsunami-like waves. 26,29–31 Kihara et al 32–34 conducted a series of physical model experiments at the Central Research Institute of the Electric Power Industry (CRIEPI, Japan) using a large wave flume to produce tsunami inundations and studied their impacts on complex topographies and buildings.…”

Section: Introductionmentioning

confidence: 99%

Tidal bore impact pressures on a trestle pier in the Qiantang River Estuary, China

Pan

2022

Advances in Mechanical Engineering

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Tidal bores are natural phenomena resulting from the nonlinear distortion of tidal waves and propagate upstream with the incoming tide. The Qiantang River tidal bore is world-famous for its great momentum which can occasionally inflict major damage to infrastructures in the Qiantang River Estuary, China. Existing design guidelines are not fit for accurately estimating the tidal bore loads on elevated structures. This study investigated the impact of tidal bores on the trestle piers of a river-crossing bridge using field tests. Based on the measured data, empirical formulas for the maximum impact pressure in four zones across the trestle were derived, and the influence of the Froude number on the peak pressure was determined. Results show that the peak pressure of the instantaneous impulsive state of the bore can exceed the pressure of the quasi-steady state 10-fold. The maximum dynamic impact pressure on the seaward side of the pier occurs at the base of the bore. The peak dynamic pressure accounts for 54%, 45%, and 20% of the total pressure for Froude numbers of 1.26, 1.12, and 1.04, respectively. The results of this study can serve as valuable references for the load design of structures against tidal bores and tsunami-like waves.

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“…[10] revised Takahashi's formula [8] by using experimental data. Extensive experimental studies have been conducted to estimate the forces and pressures that are induced by tsunami bore and exerted on structures [11][12][13][14][15]. However, few experiments have been performed to measure the wave pressure on the back side of the vertical breakwater.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Forces Influencing Vertical Breakwater under Extreme Waves

Hsu

Chen

et al. 2022

Water

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In order to understand the extreme wave acting on the vertical breakwater, a series of experiments were constructed in the wave tank to measure the variations of pressure on the front, rear faces, and below the caisson due to overtopping waves. The front and backward horizontal forces and the uplift forces were estimated by integrating the dynamic wave pressure distributions. The COBRAS numerical model was also used to calculate the wave loads under various overtopping waves. The measured wave pressures and wave forces were compared with the predictions of numerical results and showed good agreement. It was found that the forces acting on the backward side of the vertical structure induced by the wave overtopping should be considered. From the experimental data, new semi-empirical equations for calculating the maximum wave forces are proposed using a least squares approximation.

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Tsunami-Like Wave-Induced Lateral and Uplift Pressures and Forces on an Elevated Coastal Structure

Cited by 23 publications

References 37 publications

Collapse processes and associated loading of square light-frame timber structures due to bore-type waves

Collapse processes and associated loading of square light-frame timber structures due to bore-type waves

Tidal bore impact pressures on a trestle pier in the Qiantang River Estuary, China

Experimental Study of Forces Influencing Vertical Breakwater under Extreme Waves

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