Application of Fluid Viscous Dampers in a Long Span Steel Truss Girder Railway Bridge
WANG Bing
TAN Ping
MA Ancai
ZHOU Fulin
Abstract：This paper systematically studied a long span steel truss continuous railway bridge,which is a practical engineering,and built a 3D finite element model for this bridge within the environment of SAP2000.A non-linear dynamic time-history analysis method was conducted to investigate the control effectiveness of the installed viscous dampers upon this long span continuous steel truss girder railway bridge.Parameter optimization of viscous dampers is carried out to economically improve the performance of the railway bridge.The research results show that the displacement of girder and the internal force responses of pier bottom of the bridge can be reduced significantly by fluid viscous dampers on condition that the fluid viscous devices are of optimal placement and parameters,thus greatly enhance the safety of the high pier large span steel truss continuous bridge under rare earthquakes.
Keywords：Long span steel truss bridgeRailway bridgeEnergy dissipation systemFluid viscous dampersparameter optimization
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 104-110 )