This paper presents a method for modelling the rail track system within a more complex analysis approach focused to analyze dynamic soil-structure interaction due to rail traffic and to evaluate the structural vibrations. The rail system is analyzed by using two different code model based on rigid body and finite element (FE) analysis respectively. The results of the former are used as input for the latter model to evaluate the dynamic interaction due to the train transit. The rail beam is discretized into a number of rigid bodies connected each other by beam elements, and linear springs, connected to the ground and depending on the mechanical characteristics of underground structures and soil. The results of spring constant evaluation are presented and discussed within a case study.

RAIL TRACK MODELING FOR SOIL-STRUCTURE INTERACTION ANALYSIS

D'OVIDIO, GINO;
2010-01-01

Abstract

This paper presents a method for modelling the rail track system within a more complex analysis approach focused to analyze dynamic soil-structure interaction due to rail traffic and to evaluate the structural vibrations. The rail system is analyzed by using two different code model based on rigid body and finite element (FE) analysis respectively. The results of the former are used as input for the latter model to evaluate the dynamic interaction due to the train transit. The rail beam is discretized into a number of rigid bodies connected each other by beam elements, and linear springs, connected to the ground and depending on the mechanical characteristics of underground structures and soil. The results of spring constant evaluation are presented and discussed within a case study.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11697/31277
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