A review of the structural performance of prestressed monoblock concrete sleepers in ballasted railway tracks

El–sayed, H.M.; Riad, H.S.; Fayed, M. N.; Zohny, Haytham N.

doi:10.1016/j.engfailanal.2022.106522

Cited by 7 publications

(2 citation statements)

References 68 publications

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“…Transportation infrastructures represented by railways and roads contribute greatly to economic development. The characteristics of granular material including ballast and aggregates, concrete, asphalt, steel, and so on, as well as their interactions, directly affect the mechanical properties and service performance of transportation infrastructure [ 1 , 2 , 3 ]. The problems related to the use of seamed tracks especially on small-radius curves have become progressively more serious, comprising joint deterioration, train swaying, elevated maintenance expenses, and jeopardized running safety.…”

Section: Introductionmentioning

confidence: 99%

Effect of Random Lateral Ballast Resistance on Force-Deformation Characteristics of CWR with a Small-Radius Curve

2023

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To address the randomness of lateral ballast resistance in the field and its effect on the force-deformation behavior of Continuous Welded Rail (CWR) with small-radius curves, field tests were first conducted to investigate longitudinal and lateral ballast resistance on a 250 m-radius curve. It was found that the lateral ballast resistance follows a normal distribution based on the Shapiro–Wilk test. A finite element model of a small-radius curve CWR track was then established based on actual field conditions, and the force-deformation characteristics were analyzed under thermal loading. The results showed that it is of great significance to incorporate the randomness of the lateral ballast resistance as the deformation mode is closer to the actual field situation. In particular, attention should be given to areas where the lateral ballast resistance is weak. The research presented here has significant implications for railway maintenance practice.

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Section: Introductionmentioning

confidence: 99%

Effect of Random Lateral Ballast Resistance on Force-Deformation Characteristics of CWR with a Small-Radius Curve

2023

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“…However, modern tools used to determine the state of an object are based on principles developed to determine the first limit state, which determines the general suitability of an object to work in certain conditions [58][59][60]. The strength [61][62][63] and stability [64][65][66][67] indicators used to evaluate this state are obtained by numerical modeling to simulate quasi-dynamic deformation processes [68][69][70][71] occurring inside the elements under the influence of external [72][73][74] and climatic impulses [75][76][77].…”

Section: Introductionmentioning

confidence: 99%

Using Detailing Concept to Assess Railway Functional Safety

Bondarenko¹,

Campisi

Tesoriere

et al. 2022

Sustainability

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The ability to assess the risks of the functional safety of railway tracks allows harmonizing characteristics of track elements under certain operating conditions under certain maintenance for the efficient use of the track structure throughout its life cycle. The concept of detailing conditions of the interaction of the rolling stock and railway track was used for the productive solution of tasks of infrastructure functional safety assessment. The paper formed an approach to the analytical solution of determination problems of deformability parameters over time using the elastic waves theory. The formation method of interconnections between the technical and economic aspects of the operation of railway infrastructure was proposed. The criteria of deformability work and intensity of use were utilized for the effective use of the track structure through its life cycle. The results of calculations are presented to assess changes in the deformability behaviour of the track elements and structure when the force and speed parameters of the operating conditions change, as well as the algorithm of the method for estimating the operation deformability of the railway track. Thus, the proposed approach can be adapted to optimize objects by railway functional safety assessment at the stage of object operation simulation.

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Dynamic modeling and parameter identification of a track stabilizing device coupled system

et al. 2023

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A review of the structural performance of prestressed monoblock concrete sleepers in ballasted railway tracks

Cited by 7 publications

References 68 publications

Effect of Random Lateral Ballast Resistance on Force-Deformation Characteristics of CWR with a Small-Radius Curve

Effect of Random Lateral Ballast Resistance on Force-Deformation Characteristics of CWR with a Small-Radius Curve

Using Detailing Concept to Assess Railway Functional Safety

Dynamic modeling and parameter identification of a track stabilizing device coupled system

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