客运专线连续梁桥墩线刚度限值探讨

Discussion of Limit Stiffness of Pier of Continuous Beam in PDL

研究目的:近年来,连续梁已成为新建铁路及客运专线的常用梁型。新建铁路一次性铺设跨区间之缝线路已成为趋势,研究连续梁桥上无缝线路纵向力变化规律,探讨客运专线常见连续梁桥墩线刚度限值迫在眉睫。研究结果:提出客运专线常见连续梁桥墩线刚度限值,可指导桥梁和轨道的前期设计。

Research purposes:In recent years,continuous beam has already been the common bridge type in newly-buih railway and PDL.It is trend to lay jointless rail for newly-built railway.It is imperative to study the rules of longitudinal force of CWR on bridge and discuss the limit stiffness of pier of the continuous beams that usually used in PDL. Research results:This paper puts forward the limit stiffness of pier of continuous beams that usually used in PDL which can guide the prophase design of bridge and track...