Numerical study on the structural response of a masonry arch bridge subject to flood flow and debris impact

Majtan, Eda; Cunningham, Lee S.; Rogers, Benedict D.

doi:10.1016/j.istruc.2022.12.100

Cited by 9 publications

(4 citation statements)

References 47 publications

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“…This opens up a major issue on whether arch bridges do experience collapse due to water thrust, and which hydraulic force component (drag or uplift) causes the most damage. While for the dragging action there is agreement among studies and data, concerning the uplift component, the studies by Falconer et al [74] and Majtan, Cunningham and Rogers [75] are in disagreement with those of Jempson [76], Kerenyi et al, [77], Oudenbroek et al, [57] and Dean [78]. Indeed, Falconer et al and Majtan, Cunningham and Rogers suggested a positive uplift mechanism for the arch, called upthrust, while flume experiments on hydrodynamic forces on bridge decks from the other authors reported negative uplift coefficients for most of the submergence ratios encountered in floods.…”

Section: Resultsmentioning

confidence: 78%

Fragility Analysis Based on Damaged Bridges during the 2021 Flood in Germany

Pucci,

Eickmeier,

Sousa

et al. 2023

Applied Sciences

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Floods trigger the majority of expenses caused by natural disasters and are also responsible for more than half of bridge collapses. In this study, empirical fragility curves were generated by referring to actual failures that occurred in the 2021 flood in Germany. To achieve this, a calibrated hydraulic model of the event was used. Data were collected through surveys, damage reports and condition ratings from bridge owners. The database comprises 250 bridges. The analysis revealed recurrent failure mechanisms belonging to two main categories: those induced by scour and those caused by hydraulic forcing. The severity of the damage was primarily dependent on the bridge typology and, subsequently, on the deck’s weight. The analysis allowed us to draw conclusions regarding the robustness of certain bridge typologies compared to others for a given failure mechanism. The likelihood of occurrence of the triggering mechanism was also highlighted as a factor to consider alongside the damage probability. This study sheds light on existing vulnerabilities of bridges to river floods, discussing specific areas in which literature data are contradictory. The paper also strengthens the call for a shift towards a probabilistic approach for estimating hydraulic force in bridge design and assessment.

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Section: Resultsmentioning

confidence: 78%

Fragility Analysis Based on Damaged Bridges during the 2021 Flood in Germany

Pucci,

Eickmeier,

Sousa

et al. 2023

Applied Sciences

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“…Versuche zur Ermittlung der Kräfte am Brückenüberbau durch Verklausungen existieren allerdings nur wenige, vgl. [41,42]. In [41] werden Versuche an Bogenbrücken unter Hochwasser und Verklausungen in einem Maßstab 1:10 erwähnt.…”

Section: Es Existieren Zahlreiche Wissenschaftliche Arbeiten Zurunclassified

“…[41,42]. In [41] werden Versuche an Bogenbrücken unter Hochwasser und Verklausungen in einem Maßstab 1:10 erwähnt.…”

Section: Es Existieren Zahlreiche Wissenschaftliche Arbeiten Zurunclassified

Mureneinwirkungen auf Massivbrückenüberbauten

Friedl¹,

Wernhart²,

Scheidl³

et al. 2023

Beton und Stahlbetonbau

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Brückenbauwerke im alpinen Raum unterliegen verschiedenen Naturgefahren. Dazu zählen auch Muren. Murenereignisse führen nachweisbar auch zur Zerstörung von Brücken. Um Brücken für solche Einwirkungen zu bemessen, sind Angaben zur Anprallkraft von Muren notwendig. Für Murenanpralle gegen Pfeiler liegen umfangreiche, sowohl miniaturisierte als auch Realgrößenversuche vor. Für Brückenüberbauten sind bisher keine solchen Versuche bekannt. In diesem Beitrag werden miniaturisierte Murenanprallversuche an Massivbrückenquerschnitten vorgestellt. Basierend auf den Versuchsergebnissen werden Empfehlungen für die Bemessung von Massivbrücken in exponierten Lagen gegeben.

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“…In an important contribution [12], the structural response of a typical masonry arch bridge to flood flow and debris was researched. Simulations were performed of the water pressure imposed on piers and abutments using the smoothed particle hydrodynamics method and the so-called macro-model to simulate masonry.…”

Section: Introductionmentioning

confidence: 99%

The Effects of River Torrents and Debris on Historic Masonry Vaulted Arch Bridges

Van Bogaert,

De Backer

2023

Buildings

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The carrying capacity for vertical loads of well-maintained masonry arch bridges is reasonably high. This might not be the case for horizontal loads, the effects of which have not been the subject of extensive research aside from seismic occurrences. Arch bridges crossing rivers are subjected to sudden horizontal loads, due to river torrents, carrying debris from higher grounds. The magnitude of these horizontal loads is similar to those of coastal waves and debris; however, their effect on these structures has yet to be explored in detail. The narrow and high Devil’s Bridge across the Arda River (BG) and the wide, low Candia Viaduct across the Sesia River (I) were chosen as examples. Both are strongly exposed to fast-washing flow in the river during spring. FE simulations show that the impact of the rapidly rising river water influences the general stability, while the effect of debris mainly causes local damage. The results exhibit that tall, slender masonry arch structures fail due to the brittle fracture of the material, followed by the shear failure of a pier body. In contrast, lower and wider viaducts fail due to exaggerated tensile cracking in the upstream parts of a pier and the associated increasing pressure at its downstream parts.

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Numerical study on the structural response of a masonry arch bridge subject to flood flow and debris impact

Cited by 9 publications

References 47 publications

Fragility Analysis Based on Damaged Bridges during the 2021 Flood in Germany

Fragility Analysis Based on Damaged Bridges during the 2021 Flood in Germany

Mureneinwirkungen auf Massivbrückenüberbauten

The Effects of River Torrents and Debris on Historic Masonry Vaulted Arch Bridges

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