Detail publikačního výsledku

Monitoring based nonlinear system modeling of bridge–continuous welded rail interaction

STRAUSS, A.; KARIMI, S.; ŠOMODÍKOVÁ, M.; LEHKÝ, D.; NOVÁK, D.; FRANGOPOL, D.; BERGMEISTER, K.

Originální název

Monitoring based nonlinear system modeling of bridge–continuous welded rail interaction

Anglický název

Monitoring based nonlinear system modeling of bridge–continuous welded rail interaction

Druh

Článek WoS

Originální abstrakt

The investigation of longitudinal loads and their influence on stresses and internal forces in continuous welded rails (CWR) connected to bridge deck has been discussed intensively in the last 20 years. These discussions originated from the 1995 UIC-recommendation 774-3R, and led to the introduction of the Eurocode 1. These standards are very conservative. For instance, the code used a bi-linear stiffness–displacement law for the validation of the rail–bridge structure interaction and its effects on the rail stresses lead for short bridge spans to rail interruptions. The objective of this paper is to formulate the capacities and boundary conditions of the rail–structure interaction by means of extended numerical linear and nonlinear analyses, which are not fully comprehended in the standard specifications and therefore result in conservative interaction laws. The analyses have been carried out by means of monitoring-based nonlinear finite element modeling using advanced beam–spring interaction laws and specified thermomechanical considerations for capturing the real thermal expansion of bridge structures.

Anglický abstrakt

The investigation of longitudinal loads and their influence on stresses and internal forces in continuous welded rails (CWR) connected to bridge deck has been discussed intensively in the last 20 years. These discussions originated from the 1995 UIC-recommendation 774-3R, and led to the introduction of the Eurocode 1. These standards are very conservative. For instance, the code used a bi-linear stiffness–displacement law for the validation of the rail–bridge structure interaction and its effects on the rail stresses lead for short bridge spans to rail interruptions. The objective of this paper is to formulate the capacities and boundary conditions of the rail–structure interaction by means of extended numerical linear and nonlinear analyses, which are not fully comprehended in the standard specifications and therefore result in conservative interaction laws. The analyses have been carried out by means of monitoring-based nonlinear finite element modeling using advanced beam–spring interaction laws and specified thermomechanical considerations for capturing the real thermal expansion of bridge structures.

Klíčová slova

Continuous welded rails, Rail–bridge interaction, Admissible rail stress capacity, Temperature monitoring, Non-linear finite element modelling

Klíčová slova v angličtině

Continuous welded rails, Rail–bridge interaction, Admissible rail stress capacity, Temperature monitoring, Non-linear finite element modelling

Autoři

STRAUSS, A.; KARIMI, S.; ŠOMODÍKOVÁ, M.; LEHKÝ, D.; NOVÁK, D.; FRANGOPOL, D.; BERGMEISTER, K.

Rok RIV

2019

Vydáno

01.01.2018

ISSN

0141-0296

Periodikum

ENGINEERING STRUCTURES

Svazek

155

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

25

Strany do

35

Strany počet

11

URL

https://www.sciencedirect.com/science/article/pii/S0141029617306715

BibTex

@article{BUT143571,
  author="Alfred {Strauss} and Saeed {Karimi} and Martina {Sadílková Šomodíková} and David {Lehký} and Drahomír {Novák} and D.M. {Frangopol} and Konrad {Bergmeister}",
  title="Monitoring based nonlinear system modeling of bridge–continuous welded rail interaction",
  journal="ENGINEERING STRUCTURES",
  year="2018",
  volume="155",
  number="1",
  pages="25--35",
  doi="10.1016/j.engstruct.2017.10.053",
  issn="0141-0296",
  url="https://www.sciencedirect.com/science/article/pii/S0141029617306715"
}