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道岔板上桥乃属世界首例,国内及国外道岔区都没有采用过此结构,武广客运专线雷大桥特大桥整桥采用纵连底座板道岔板上桥结构设计弥补了CRTSⅡ型板设计上的空缺。基于有限单元法的桥上无缝道岔设计计算理论,分析了桥上纵连底座板式道岔区板式无砟轨道道岔和桥梁等的受力与变形规律,从设计上和理论上论证了道岔板上桥的可行性,对今后CRTSⅡ型板在国内推广使用具有一定的借鉴意义。
Switchboard Bridge is the world’s first case, the domestic and foreign turnout areas have not adopted this structure, Wuhan-Guangzhou Passenger Dedicated Leidai Bridge Bridge using longitudinal base plate board switchboard structure design to make up for the bridge on the CRTS Ⅱ plate design The vacancy. Based on the finite element method of bridgeless turnout design and calculation theory, the force and deformation of slab ballastless track turnout and bridge are analyzed. It is demonstrated from the design and theory that the on- The feasibility of the bridge, the CRTS Ⅱ type plate in the future to promote the use of a certain reference.