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İnşaat Mühendisliği Bölümü Yayın Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.12416/395

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Browsing İnşaat Mühendisliği Bölümü Yayın Koleksiyonu by Subject "Abutment"

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    Citation Count: Kumcu, Şerife Yurdagül; Kökpınar, Mehmet Ali; Göğüş, Mustafa (2022). "Effect of Collars on the Downstream Movement of the Maximum Scour Depth Location Around Bridge Abutments and Piers", Iranian Journal of Science and Technology-Transactions of Civil Engineering, Vol. 46, No. 2, pp. 1421-1432.
    Effect of Collars on the Downstream Movement of the Maximum Scour Depth Location Around Bridge Abutments and Piers
    (2022) Kumcu, Şerife Yurdagül; Kökpınar, Mehmet Ali; Göğüş, Mustafa; 6062
    A detailed investigation has been conducted to study the shift location of the point of the maximum scour depth for both bridge abutment-collar and pier-collar arrangements. In the present study, an experimental program has been conducted for abutment-collar arrangements and additionally, the data obtained from the literature for the pier-collar arrangements have been revisited and analyzed to complement the framework of this study. For the abutment-collar arrangements, a series of experiments under clear-water conditions were carried out for different abutment lengths with fixed values of collar location and collar width. For pier-collar arrangements, data used from the literature have been involved constant pier diameter with various collar sizes at various elevations. To describe the locations of these maximum scour depths, their coordinates with respect to the location of the abutment or the pier were obtained. Results from this investigation showed that when a collar placed on or below the bed level was used as a countermeasure against scouring, either on an abutment or on a pier, it was observed that the maximum scour depth was routed downstream of the bridge structure.
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    Article
    Citation Count: Akbulut, Ömer Faruk; Kökpınar, Mehmet Ali; Göğüş, Mustafa (2023). "Experimental Study on the Interaction Between Bridge Pier and Abutment Concerning Clear-Water Local Scour", Iranian Journal of Science and Technology - Transactions of Civil Engineering.
    Experimental Study on the Interaction Between Bridge Pier and Abutment Concerning Clear-Water Local Scour
    (2023) Akbulut, Ömer Faruk; Kökpınar, Mehmet Ali; Göğüş, Mustafa; 6062
    Estimation of scour depth around bridge piers and abutments is essential for safety and economic design in alluvial rivers. Although local scour around bridge piers and abutments has been studied separately by a large number of investigators, there is limited research on the literature related to the interaction between these two structures. Hence, in this study, the aim is to investigate the interaction between bridge abutments and pier scours in detail. For this reason, bridge abutments of different lengths of La = 0.05, 0.10, and 0.15 m and a pier with diameter of D = 0.1 m were placed at various distances from each other in a long sediment channel and tested under clear-water flow conditions with constant flow intensity. All the important dimensionless parameters involved in the interaction phenomenon were derived from theoretical analysis, and the relationships between them were investigated. Analysis of the data showed that the presence of a pier in the flow medium in addition to an abutment has a certain amount of influence on the formation of scour holes around the structures. The influence of the abutment on the pier was more noticeable in the current study, particularly for longer abutments, leading to average increases of up to 20% in scour depth around the pier. The study’s findings revealed that the presence of both a pier and an abutment in the flow medium exerted a discernible, unfavorable influence on the development of scour holes, particularly around piers.