Determination of the Hydrodynamic Load on an Inundated Bridge Deck by Measurements Performed on a Physical Model

Dráb, Aleš; Duchan, David; Špano, Miroslav; Pavlíček, Michal; Zubík, Pavel; Štěpánková, Pavla

doi:10.1007/s40999-019-00411-8

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…When considering the structural analysis of a bridge, flood action can be split in static and dynamic components (Hamill, 1998). Flume experiments are often employed to determine the magnitude of dynamic thrusts on bridge decks by averaging the results of sensor readings on a predefined timeframe (e.g., 50s) (Dráb et al, 2019). Interestingly, lower discharges can lead to higher forces on structural components in specific cases, where dynamic components such as drag do not increase monotonically together with the water height (Oudenbroek et al, 2018).…”

Section: Hydrodynamic Forces Determinationmentioning

confidence: 99%

Fragility of bridge decks exposed to hydraulic and driftwood actions

Pucci,

Sousa,

Giresini

et al. 2023

Structure and Infrastructure Engineering

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A resilient bridge network is vital to a community recovery after natural disasters.Floods are the main cause of bridge collapses, but there is little research on the combined fragility of single-span bridge decks to hydrodynamic forces and driftwood clogging. Moreover, most studies concentrate on multi-span bridges and piers. By using HEC-RAS software and in-house developed Python scripts, this work proposes a method to obtain fragility curves for single-span bridges accounting for hydrodynamic actions and driftwoods. Due to the lack of indications from standards concerning uplift and overturning of bridge decks, these limit states are included in the formulation together with slippage. Results revealed that all three limit states must be taken into account and showed that driftwood clogging can have a severe impact on the failure probability of the bridge, with even a minor decrease in clearance causing a significant safety reduction.Additionally, this work discusses the influence of hydrologic model recalibration on the failure probability of a structure.

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Section: Hydrodynamic Forces Determinationmentioning

confidence: 99%

Fragility of bridge decks exposed to hydraulic and driftwood actions

Pucci,

Sousa,

Giresini

et al. 2023

Structure and Infrastructure Engineering

View full text Add to dashboard Cite

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Experimental study on the drag force on bridge abutments

Azarmidokht,

Zarrati

2024

Can. J. Civ. Eng.

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The drag force exerted on a bridge abutment, representative of wall-attached structures, is studied with different geometries in various flow conditions. The drag force was quantified by two methods here: 1) direct method by using strain gauges and 2) employing the conservation of momentum equation which takes advantage of the flow characteristics. . The momentum equation results differed considerably from the direct method, mainly related to even the smallest inaccuracy in depth measurements. We suggest a modified momentum equation to enhance accuracy because of its independence on downstream flow depth measurement. The experimental results also revealed that the constriction ratio at the bridge abutment section and the abutments geometric shape are the most influential parameters on the drag coefficient. On the other hand, the effect of flow characteristics is negligible. Finally, we proposed an empirical relationship to estimate the drag coefficient.

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Determination of the Hydrodynamic Load on an Inundated Bridge Deck by Measurements Performed on a Physical Model

Cited by 2 publications

References 12 publications

Fragility of bridge decks exposed to hydraulic and driftwood actions

Fragility of bridge decks exposed to hydraulic and driftwood actions

Experimental study on the drag force on bridge abutments

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