Renovation of a Safety-Inspection Methodology for River Bridges

Yanmaz, A. Melih; Caner, Alp; Berk, A. A.

doi:10.1061/(asce)0887-3828(2007)21:5(382)

Cited by 10 publications

(4 citation statements)

References 4 publications

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“…Elements of river bridges should be inspected with regard to structural stability as well, every two years [48]. Berk [49] and Yanmaz et al [50] noted the necessity of periodic inspections and effective factors on inspections and formed a structural checklist for river bridges in Turkey using sample bridges in USA and Turkey. That structural assessment was composed of main body, earth retaining and serviceability components of bridges.…”

Section: Structural Assessment Of River Bridgesmentioning

confidence: 99%

“…That structural assessment was composed of main body, earth retaining and serviceability components of bridges. In this study, a ranking of the checklist for the structural evaluation of river bridges in Turkey proposed by Yanmaz et al [50] was modified using the same classes as in hydraulic assessment. Tables 8 and 9 show the indicators of structural assessment and their classifications, respectively.…”

Section: Structural Assessment Of River Bridgesmentioning

confidence: 99%

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Development of a Safety-Inspection Method for River Bridges in Turkey

Akay

Koçyiğit

Yanmaz

2019

Water

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In this paper, findings of a research project about river bridges in Turkey are shared and details of the developed safety-inspection method based on hydrological and hydraulic factors are presented. In the project, the Western Black Sea Basin was chosen as the pilot area, where the basin is mountainous with steep slopes and has a rainy climate with frequent flash floods. Many river bridges in the basin were inspected at different flow conditions throughout the project duration of three years. The developed safety-inspection method is composed of four main parts: evaluation of watershed hydrology and its flood potential, stream stability, bridge characteristics and a rapid scour assessment. A structural assessment is also included in the method. Five river bridges in the area were chosen for detailed inspection and application of the method. Results showed that the method was capable of identifying and ranking the bridges in regard to maintenance needs and forming a comprehensive inventory for bridge engineers.

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Section: Structural Assessment Of River Bridgesmentioning

confidence: 99%

Section: Structural Assessment Of River Bridgesmentioning

confidence: 99%

Development of a Safety-Inspection Method for River Bridges in Turkey

Akay

Koçyiğit

Yanmaz

2019

Water

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“…Reliability-based evaluation of scouring around dual bridge piers around the piers of bridges can increase the resistance level. The vulnerability of a bridge to scouring can be assessed in the scope of regular inspections [15,16]. Thus the resistance of the structure can be assessed and precautions can be taken (additional repairs) when the safety level decreases.…”

Section: Computation Of Probability Of Failurementioning

confidence: 99%

Reliability-based evaluation of scour around dual bridge piers

Yılmaz¹,

Çalamak²,

Yanmaz³

2019

JCE

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The causes of uncertainty involved in temporal variation of the depth of cavern formation due to clear water scouring at dual piers with tandem arrangement are identified in this study. In an example, the probability of failure induced by scouring around dual piers is estimated for various pier spacing using probabilistic analysis. The effects of changes in the coefficient of variation of probabilistic scouring variables and probability distributions on the probability of the loss of stability, are also investigated. It was established that the effects of variations in the coefficient of variation on the probability of the loss of stability are more significant compared to that on the probability distributions of the scour depth. Key words: bridge, pier, probability of the loss of stability, scour, tandem arrangement, uncertainty Prethodno priopćenje Meric Yilmaz, Melih Calamak, A. Melih YanmazOcjena podlokavanja oko dvojnih stupova mosta primjenom analize pouzdanosti U ovom se istraživanju određuju uzroci nepouzdanosti uslijed vremenske varijacije dubine kaverne nastale podlokavanjem u uvjetima bistre vode na mjestu dvojnih stupova tandemskog razmještaja. Na primjeru se probabilističkom analizom ocjenjuje vjerojatnost gubitka stabilnosti uslijed podlokavanja oko dvojnih stupova, za razne razmake stupova. Istraženi su i utjecaji promjene koeficijenta varijacije probabilističkih varijabli podlokavanja, te funkcije razdiobe vjerojatnosti, na vjerojatnost gubitka stabilnosti. Utvrđeno je da su utjecaji promjene koeficijenta varijacije na vjerojatnost gubitka stabilnosti značajniji od razdiobe vjerojatnosti dubine podlokavanja. Ključne riječi: most, stup, vjerojatnost gubitka stabilnosti, podlokavanje, tandemski razmještaj, nepouzdanost Vorherige Mitteilung Meric Yilmaz, Melih Calamak, A. Melih Yanmaz Beurteilung der Unterspülung um die Doppelpfeiler einer Brücke anhand einer Zuverlässigkeitsanalyse In dieser Studie werden die Ursachen für die Unzuverlässigkeit durch die zeitliche Variation der Tiefe der Kaverne bestimmt, die durch Unterspülung mit klaren Wasserbedingungen am Standort von Doppelpfeilern in Tandemanordnung erzeugt wird. Am Beispiel wird mittels der probabilistischen Analyse die Wahrscheinlichkeit eines Stabilitätsverlusts aufgrund der Unterspülung von Doppelpfeilern mit unterschiedlichen Säulenabständen bewertet. Die Auswirkungen der Änderung des Variationskoeffizienten probabilistischer Variablen der Unterspülung sowie der Wahrscheinlichkeitsverteilungsfunktion auf die Wahrscheinlichkeit eines Stabilitätsverlusts wurden ebenfalls untersucht. Es wurde festgestellt, dass die Auswirkungen der Änderung des Variationskoeffizienten auf die Wahrscheinlichkeit eines Stabilitätsverlusts signifikanter waren als die Wahrscheinlichkeitsverteilung der Unterspülungstiefe.

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“…The lack of horizontal and vertical stability of a stream channel can lead to the collapse of important infrastructure works, including bridges. However, despite the potential negative effects of this phenomenon, to date there are few methods available to assess the degree of stability of a river (Yanmaz et al, 2007;Johnson et al, 2011).…”

Section: Stream Channel Stabilitymentioning

confidence: 99%

Evaluation of the risk due to fluvial flooding in vehicles and road infrastructures at basin scale

Vinasco¹,

Andres²

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Renovation of a Safety-Inspection Methodology for River Bridges

Cited by 10 publications

References 4 publications

Development of a Safety-Inspection Method for River Bridges in Turkey

Development of a Safety-Inspection Method for River Bridges in Turkey

Reliability-based evaluation of scour around dual bridge piers

Evaluation of the risk due to fluvial flooding in vehicles and road infrastructures at basin scale

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