Creep Behavior ofQuasi-high-speed Dedicated Passenger Railway Track G irders during Construction

Four large scaleT-beamswith a geometricalproportion of1∶5 weremade to simulate track girders of theQinhuangdao-Shenyang dedicated passenger railway. Their creep deformations during the construction were investigated experimentally. The research laid emphasis upon the effects of types of concrete and tensioningmeasures ofprestressed steelbaron the creep deformation. Moreover, program Sofistikwas used in the time-dependent full-range analysis of theT-beams during the construction, the errorbetween calculated and experimental results being less than 10%. Based on the above research, design suggestions taking the typesofconcrete, the tensioningmeasuresofprestressed steelbarand the rate ofreinforcement into accountwere given. The research results are useful to the design ofdedicated passenger railway track girders and the effective control of creep deformation.