Abstract：Research purposes:The Junliangcheng North Station of the Tianjin － Qinhuangdao Passenger Dedicated Line is located on the Tanguxi Bridge crossing the Beijing － Tianjin － Tangshan Highway． The CRTS Ⅱ slab track with longitudinal connected concrete base is applied in ordinary section and the continuous short rigid frame bridge is applied in the turnout area for laying the seamless turnout on the longitudinal connected concrete base． In order to solve the problem of the complicated loading on structures caused by the longitudinal connected base，it is necessary to build the model for analyzing the loading on the ballastless turnout，the turnout slab and the piers to direct the structure design．
Research conclusions:By the means of building the track － bridge － pier integrated model for the rail，turnout slab，concrete base，girder，pier and abutment，the load bearing characteristic of the longitudinal connected concrete base is obtained． It shows the longitudinal connected concrete base is mainly effected by the temperature force and braking force．Application of stiffness reduction theory and limit state design method for the longitudinal connected concrete base is an effective supplement of the previous study on the concrete basein turnout area on bridge． It can provide the reference to the similar works in the future．
徐凌雁. 军粮城北站桥上岔区纵连底座结构设计研究[J]. 铁道工程学报, 2012, 29(10): 47-51.
XU Ling － yan. Research on Design of Structure of Longitudinal Connected Concrete Base in Turnout Area on Junliangcheng North Station Bridge. 铁道工程学报, 2012, 29(10): 47-51.
Zeng Hualiang，The Analysis of Temperature Force and Deformation Influence Factors for Continuous Welded Turnout on Continous Bridge［J］．Journal of Railway Engineering Society，2007( 10) : 32－35．
Zeng Zhiping，Chen Xiufang，Zhao Guofan． Research of Interaction between Long Span Bridge and Ballastless Turnout under Action of Temperature Load ［J］． Journal of Railway Science and Engineering，2007(4) : 11－16．
Gao Liang，Tao Kai，Qu Cun，etc． Research of Space Mechanics Feature of Continuous Welded Turnout on Bridge of Passenger Dedicated line［J］． China Railway Science，2009( 1) : 29－35．
Liu Yanfeng，Gao Liang，Feng Yawei． Finite Element Analysis of Force and Formation for Continuous Welded Turnout on Bridge［J］．Journal of Beijing Jiaotong University，2006(1) : 66－70．
Liu Zhe，Wang Ping．Force and Formation Analysis of Typical Continuous Welded Turnout Group on Continuous Bridge［J］．Railway Engineering，2011(7) : 124－127．
Li Qiuyi．Research of Computational Model and Calculation Method of Continuous Welded Turnout on Passenger Dedicated Line Bridge［J］．Railway Standard Design，2010(2) : 64－66．
2012, Vol. 29 
版权所有 © 2014 《铁道工程学报》编辑部