Reducing slab track vibration into bridge using elastic materials in high speed railway

In this paper, the problem of vibration transmission from slab track structures into bridge is studied by theoretical analysis. A vehicle–track–bridge coupling system dynamics model is established based on a multibody dynamics theory and a finite element method. The system model consists of vehicle model, track–bridge model and wheel/rail interaction model. The vehicle model is established based on the multibody dynamics theory, and the tack–bridge model is established by the finite element method. The vehicle model and track–bridge model are coupled through wheel/rail interaction model, and the track irregularities are included. The system dynamic responses are calculated, and the effectiveness of elastic materials in vibration reducing is discussed. The results demonstrate that elastic materials like slab mat layer inserted between slab track and bridge can reduce vibration transmitted from track into the bridge. Some suggestions for the design and application of slab mat are provided in the end of the paper.

[1]  L Fryba,et al.  VIBRATION OF SOLIDS AND STRUCTURES UNDER MOVING LOADS (3RD EDITION) , 1999 .

[2]  Fangsen Cui,et al.  The effectiveness of floating slab track system — Part I. Receptance methods , 2000 .

[3]  Jaap Wardenier,et al.  Numerical simulation of train–bridge interactive dynamics , 2001 .

[4]  Tommy H.T. Chan,et al.  Dynamic interaction of long suspension bridges with running trains , 2000 .

[5]  Yeong-Bin Yang,et al.  Mechanism of resonance and cancellation for train-induced vibrations on bridges with elastic bearings , 2004 .

[6]  A. Castellani,et al.  ELASTOMERIC MATERIALS USED FOR VIBRATION ISOLATION OF RAILWAY LINES , 1998 .

[7]  Hem Hunt,et al.  Modelling of floating-slab tracks with continuous slabs under oscillating moving loads , 2006 .

[8]  Nan Zhang,et al.  Vehicle bridge interaction analysis under high-speed trains , 2008 .

[9]  Hem Hunt.  MODELLING OF RAIL VEHICLES AND TRACK FOR CALCULATION OF GROUND-VIBRATION TRANSMISSION INTO BUILDINGS , 1996 .

[10]  Yeong-Bin Yang,et al.  IMPACT RESPONSE OF BRIDGES WITH ELASTIC BEARINGS TO MOVING LOADS , 2001 .

[11]  Sang Hyo Kim,et al.  Structural analysis of 3D high-speed train–bridge interactions for simple train load models , 2010 .

[12]  Nan Zhang,et al.  Analysis of resonance mechanism and conditions of train-bridge system , 2006 .

[13]  Shen-Haw Ju,et al.  Resonance characteristics of high-speed trains passing simply supported bridges , 2003 .

[14]  Mubiao Su,et al.  THE RESONANT VIBRATION FOR A SIMPLY SUPPORTED GIRDER BRIDGE UNDER HIGH-SPEED TRAINS , 1999 .

[15]  Yeong-Bin Yang,et al.  Vehicle–bridge interaction dynamics and potential applications , 2005 .