&lt;b&gt;Replacement Criteria for Concrete Catenary Poles&lt;/b&gt;

Tsunemoto, Mizuki; Shimizu, Mitsuaki; Kondo, Yuichi; Kudo, Teruhiro; Ueda, Hiroshi; Iijima, T.

doi:10.2219/rtriqr.58.4_270

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…All of the above factors harm supports. Static loads, dynamic effects from wind and rolling stock, and temperature effects all contribute to changes in the stress state of the material of supports [6]. Exposure to leakage currents, corrosive soil and air effects alter the physical and mechanical properties of the material of supports.…”

Section: Methodsmentioning

confidence: 99%

Improving diagnostics of damage to railway catenary supports

Demina

Vlasenko

2021

E3S Web Conf.

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The inspection of reinforced concrete catenary supports is a time-consuming process that necessitates a lot of time to inspect the entire fleet of supports. A large number of supports with a service life of more than 40 years require intensive monitoring and condition forecasting, which can inevitably lead to high economic costs for the work of the catenary electro-mechanics. The introduction of special technical tools to collect and process measurements could solve this problem and allow the planning of a replacement schedule for the supports based on their actual damage. The article discusses the basic factors affecting the load-bearing capacity of rein-forced concrete supports, the main damages occurring, and the procedure for carrying out inspections and assessing the current condition of the supports.

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Section: Methodsmentioning

confidence: 99%

Improving diagnostics of damage to railway catenary supports

Demina

Vlasenko

2021

E3S Web Conf.

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“…For the period since 1993, supports with mixed reinforcement or supports with the limited tension of SS type (with wire stressed and with rod non-stressed reinforcement along the entire length of the rack) were widely used. Currently, the specifications for the stands for Based on researches conducted and summary of operating experience [3][4][5], all causes of defect formation can be classified per technological, structural defects and those caused by the impact of external factors.…”

Section: The History Of the Issue Problem Statementioning

confidence: 99%

Assessment of the concrete part of the contact system supports in the field

Demina

Vlasenko

2020

E3S Web Conf.

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This article describes the issues of historical tour to the development of the supporting facilities fleet on the electrified railways of Russia; it considers the causal relationships of defect formation in reinforced concrete supports of the contact line. For the given operating conditions, a 3D model of the interior bracket-type reinforced concrete support was created in the SolidWorks software package. Using the SolidWorks Simulation module, the engineering review of the reinforced concrete support tension was made using the developed computation algorithm. 3D images of the support model were visualized from operating loads under design conditions and the values of the strain in the support height subject to the exposure to additional factors.

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“…This study covers the development of a thermal nondestructive testing (TNDT) technique for inspecting reinforced concrete supports of several types, such as overhead line poles, pipes, beams, pilings, etc., which are widely used in various industries, and in both the manufacturing and operation stages [7][8][9]. Historically, Russian railways represent one of the most important industrial areas in the country.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Quality of Reinforced Concrete Electric Railway Poles by Thermal Nondestructive Testing

et al. 2018

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Thermal nondestructive testing can be used to inspect reinforced concrete supports that are widely used in various industries. Corrosion damage is a typical defect found in these supports. Corrosion usually starts as a separation between the concrete and the steel rebar. Damage is exacerbated by pressure that is caused by the formation of corrosion products. The most logical method for using IR to detect corrosion or a disbond would be to heat up the rebar by resistive or inductive heating. In both cases, monitoring the dynamic temperature distributions on the pole allows for the evaluation of reinforcement quality. The thermal properties of steel, concrete, air, and corrosion products differ greatly. The magnitude of temperature anomalies and their behavior over time depend on the presence of corrosion products, air gaps, and the quality of contact between rebar and concrete.

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<b>Replacement Criteria for Concrete Catenary Poles</b>

Cited by 6 publications

References 1 publication

Improving diagnostics of damage to railway catenary supports

Improving diagnostics of damage to railway catenary supports

Assessment of the concrete part of the contact system supports in the field

Evaluating the Quality of Reinforced Concrete Electric Railway Poles by Thermal Nondestructive Testing

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