铁道科学与工程学报Issue(6)：13-19,7.
简支梁－C RTSⅡ型板式无砟轨道制动力传递规律
Transfer law of breaking force between simply-supported bridges and CRTS ll slab ballastless track
摘要
Abstract
The 12 multiply by 32 m double-track simply-supported box beam in the Shanghai-Kunming rail-way was cited as an example to study the track-bridge interaction between the high-railway simply-supported bridge and CRTS Ⅱballastless track under braking force.The integration finite element model of rail-beam-slab-base board-pier was established to analyze the law of stress and deformation on the structures under the condition of single and double lines braking.The research results show that,the braking force and displacement of trail are extremely sensitive to loading position,and hence various load positions should be considered;under the load of single line braking,the displacement between rail and slab,shear displacement of CA mortar and the displacement between bridge and bedplate are in the elastic range;when the train brakes near the bridge abut-ment,the friction plate can decrease the longitudinal force transmitting to the subgrade section effectively;the a-bove-mentioned effects of track under the case of braking on both lines are similar with the loaded track under the case of braking on a single line,and relative sliding will occur between bridge and bedplate as well.关键词
铁路桥梁/简支梁/无砟轨道/CRTSII/制动力Key words
railroad bridges/simply-supported bridges/ballastless track/CRTS II/braking force分类
交通工程引用本文复制引用
朱乾坤,戴公连,闫斌..简支梁－C RTSⅡ型板式无砟轨道制动力传递规律[J].铁道科学与工程学报,2014,(6):13-19,7.基金项目
国家自然科学基金资助项目（51378503）；中国博士后科学基金资助项目 （）
