A comparative review on American, European and Chinese standard for railway concrete sleeper

Li, Xiaofeng; Doh, Shu Ing; Jing, Guoqing; Chong, Beng Wei; Suil, Adilen Lucia; Chin, Siew Choo

doi:10.1016/j.pce.2021.103073

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…Reinforced concrete sleepers can increase the load-bearing capacity of structures, simultaneously decreasing deformation due to loading and the crack width in the concrete [ 19 ]. The railway companies’ experiences with these reinforced structures are favorable [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Laboratory and Numerical Investigation of Pre-Tensioned Reinforced Concrete Railway Sleepers Combined with Plastic Fiber Reinforcement

Németh,

Ibrahim,

Movahedi Rad

et al. 2024

Polymers

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This research investigates the application of plastic fiber reinforcement in pre-tensioned reinforced concrete railway sleepers, conducting an in-depth examination in both experimental and computational aspects. Utilizing 3-point bending tests and the GOM ARAMIS system for Digital Image Correlation, this study meticulously evaluates the structural responses and crack development in conventional and plastic fiber-reinforced sleepers under varying bending moments. Complementing these tests, the investigation employs ABAQUS’ advanced finite element modeling to enhance the analysis, ensuring precise calibration and validation of the numerical models. This dual approach comprehensively explains the mechanical behavior differences and stresses within the examined structures. The incorporation of plastic fibers not only demonstrates a significant improvement in mechanical strength and crack resistance but paves the way for advancements in railway sleeper technology. By shedding light on the enhanced durability and performance of reinforced concrete structures, this study makes a significant contribution to civil engineering materials science, highlighting the potential for innovative material applications in the construction industry.

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Section: Introductionmentioning

confidence: 99%

Laboratory and Numerical Investigation of Pre-Tensioned Reinforced Concrete Railway Sleepers Combined with Plastic Fiber Reinforcement

Németh,

Ibrahim,

Movahedi Rad

et al. 2024

Polymers

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“…The methods listed below have been applied in the papers: • numerical modeling (finite element method-FEM and/or discrete element method-DEM) [30,31,33,35,38,[40][41][42]46,47 [53,54].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Pre-Stressed Reinforced Concrete Railway Sleeper for High-Speed Application

et al. 2023

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The current paper deals with the numerical investigation of a unique designed pre-stressed reinforced concrete railway sleeper for the design speed of 300 km/h, as well as an axle load of 180 kN. The authors applied different methodologies in their research: traditional hand-made calculations and two types of finite element software. The latter were AxisVM and ABAQUS, respectively. During the calculations, the prestressing loss was not considered. The results from the three methods were compared with each other. The hand-made calculations and the finite element modeling executed by AxisVM software are adequate for determining the mechanical inner forces of the sleeper; however, ABAQUS is appropriate for consideration of enhanced and sophisticated material models, as well as the stress-state of the elements, i.e., concrete, pre-stressed tendons, etc. The authors certified the applicability of these methodologies for performing the dimensioning and design of reinforced concrete railway sleepers with pre-stressing technology. The research team would like to continue their research in an improved manner, taking into consideration real laboratory tests and validating the results from FE modeling, special material models that allow calculation of crackings and their effects in the concrete, and so that the real pattern of the crackings can be measured by GOM Digital Image Correlation (DIC) technology, etc.

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“…Bu nedenle demiryolu denetiminin önemli bir parçasıdır. Traversler, bağlantı elemanları ile birlikte rayları belirli bir genişlikte sabitleyen, genellikle betondan oluşan ve trenden gelen yükü altyapıya dağıtan temel bileşendir [10]. Bu nedenle, traversler arasındaki açıklıklar ciddi sorunlara yol açabilir [11].…”

Section: Introductionunclassified

Mask R-CNN Algoritmasını Kullanarak Demiryolu Travers Eksikliklerinin Tespiti İçin Otonom İHA Tasarımı

Aydın

Güçlü

Akın

2022

Fırat Üniversitesi Mühendislik Bilimleri Dergisi

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Demiryolları, genellikle aralarında belirli mesafe ile monte edilen traversler aracılığıyla balast altyapısı tarafından desteklenen çelik raylardan oluşur. Traversler ve bağlantı elemanları demiryollarının önemli bileşenleridir. Bu nedenle, bu bileşenlerin eksikliği, önemli sorunlara yol açabilir. Ancak, traverslerin denetlenmesi ve gerçek demiryolu sahasında travers eksikliklerinin tespiti için teknoloji eksikliği vardır. Bu çalışma, demiryollarında bulunan traverslerin kayma ve eksiklik durumlarını incelemek için otonom İHA uçuş kontrol yöntemi önermektedir. Çalışma, otonom ray takibi ve travers kusurlarını inceleme olmak üzere ikiye ayrılmaktadır. İlk bölümde İHA’nın, demiryolunu otonom olarak gezinerek veri toplayabilmesi için ray takip algoritması geliştirilmiştir. İkinci bölümde, Mask R-CNN, travers tanıma ve eksiklik tespiti için eğitilmiştir. Tespit oranını ve verimliliğini artırmak amacıyla travers eksiklik tespiti için Mask R-CNN kullanılmıştır. Travers tespitinden sonra traversler arası mesafeler ölçülerek traverslerdeki eksiklikler tespit edilmiştir. Çalışmanın sınıflandırma başarı oranı %97’dir. Uygulanan yöntem geleneksel yöntemlere kıyasla maliyetleri önemli ölçüde azaltmaktadır. Bu çalışma, travers eksikliklerinin tespiti ile mevcut rayların denetlenmesi için değerli olup, geleneksel yöntemlere kıyasla maliyetleri önemli ölçüde azaltmaktadır.

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A comparative review on American, European and Chinese standard for railway concrete sleeper

Cited by 7 publications

References 7 publications

Laboratory and Numerical Investigation of Pre-Tensioned Reinforced Concrete Railway Sleepers Combined with Plastic Fiber Reinforcement

Laboratory and Numerical Investigation of Pre-Tensioned Reinforced Concrete Railway Sleepers Combined with Plastic Fiber Reinforcement

Numerical Investigation of Pre-Stressed Reinforced Concrete Railway Sleeper for High-Speed Application

Mask R-CNN Algoritmasını Kullanarak Demiryolu Travers Eksikliklerinin Tespiti İçin Otonom İHA Tasarımı

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