Long-term monitoring of steel railway bridge interaction with continuous welded rail

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00218118" target="_blank" >RIV/68407700:21110/14:00218118 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.scopus.com/inward/record.url?eid=2-s2.0-84901288835&partnerID=40&md5=efb06ac788d671c814336954a12a1e51" target="_blank" >http://www.scopus.com/inward/record.url?eid=2-s2.0-84901288835&partnerID=40&md5=efb06ac788d671c814336954a12a1e51</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jcsr.2014.04.009" target="_blank" >10.1016/j.jcsr.2014.04.009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Long-term monitoring of steel railway bridge interaction with continuous welded rail

Popis výsledku v původním jazyce

The continuous welded rail (CWR) is nowadays standardly used on almost all modern railway bridges. However, its placement results in an interaction between CWR and the structure, which brings not only longitudinal forces on the substructure, but also significant additional stresses in the rail. These stresses can result either in the rail break, or in a track buckling. Unfortunately, input parameters for performing a numerical analysis are hardly accessible and they vary significantly in different sources. Because of that, an extensive long-time monitoring of the rail-bridge interaction was performed on a bridge with an unusual combination of ballasted track, direct fastening and a barrier in the ballast. The paper presents the results of the monitoring and shows the analysis and evaluation of formulas, defining the fastening nonlinear stiffness of track to the bridge connection. The influence of the temperature on the ballast stiffness is also analysed.

Název v anglickém jazyce

Long-term monitoring of steel railway bridge interaction with continuous welded rail

Popis výsledku anglicky

The continuous welded rail (CWR) is nowadays standardly used on almost all modern railway bridges. However, its placement results in an interaction between CWR and the structure, which brings not only longitudinal forces on the substructure, but also significant additional stresses in the rail. These stresses can result either in the rail break, or in a track buckling. Unfortunately, input parameters for performing a numerical analysis are hardly accessible and they vary significantly in different sources. Because of that, an extensive long-time monitoring of the rail-bridge interaction was performed on a bridge with an unusual combination of ballasted track, direct fastening and a barrier in the ballast. The paper presents the results of the monitoring and shows the analysis and evaluation of formulas, defining the fastening nonlinear stiffness of track to the bridge connection. The influence of the temperature on the ballast stiffness is also analysed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/TE01020168" target="_blank" >TE01020168: Centrum pro efektivní a udržitelnou dopravní infrastrukturu (CESTI)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Constructional Steel Research

ISSN

0143-974X

e-ISSN

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Svazek periodika

99

Číslo periodika v rámci svazku

99

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

176-186

Kód UT WoS článku

000337883500016

EID výsledku v databázi Scopus

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