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A platform for research: civil engineering, architecture and urbanism
Medium-low speed maglev large-span bridge beam end ultra-large displacement track panel telescopic device
The invention relates to a medium-low speed maglev large-span bridge beam end ultra-large displacement track panel expansion device, which aims to realize the deformation coordination control of a high-precision maglev track and a foundation structure and well solve the problem of beam end ultra-large displacement expansion deformation caused by temperature difference between a bridge and a track. Comprising track panel structure units which are continuously arranged on the top face of a bridge body in the direction from a main span side pier to a junction pier, the longitudinal front end of the first track panel structure unit is connected with the main span beam body in an anchoring mode through an anchoring device, and the tail track panel structure unit longitudinally spans a super-large beam seam. The main body of the track skeleton structure unit comprises a bearing rail beam section and a frame type track skeleton unit, the bearing rail beam section and the main span beam body are fixedly connected into a whole, the frame type track skeleton unit is buckled and installed on the bearing rail beam section through an elastic strip fastener, and a longitudinal telescopic structure and a vertical and transverse limiting structure are arranged between the bearing rail beam section and the frame type track skeleton unit; a pair of F-shaped guide rails are fixedly installed on the top face of the frame type track panel unit in the transverse direction at intervals, and wing plate connectors are arranged between the longitudinally adjacent F-shaped guide rails.
中低速磁浮大跨桥梁梁端超大位移轨排伸缩装置，以实现高精度磁浮轨道与基础结构变形协调控制，很好地解决桥梁和轨道因温差而产生的梁端超大位移量伸缩变形。包括在桥梁梁体顶面上由主跨边墩向交界墩方向连续设置的轨排结构单元，其中首节轨排结构单元的纵向前端通过锚固装置与主跨梁体锚固连接，末节轨排结构单元纵向跨越超大梁缝；轨排结构单元的主体包括承轨梁节段、框架式轨排单元，承轨梁节段与主跨梁体固结为一体，框架式轨排单元由弹条扣件扣压安装在承轨梁节段上，承轨梁节段与框架式轨排单元与之间具有纵向伸缩结构和竖向及横向限位结构；框架式轨排单元的顶面上横向间隔固定安装一对F型导轨，纵向相邻的F型导轨之间设置翼板接头。
Medium-low speed maglev large-span bridge beam end ultra-large displacement track panel telescopic device
The invention relates to a medium-low speed maglev large-span bridge beam end ultra-large displacement track panel expansion device, which aims to realize the deformation coordination control of a high-precision maglev track and a foundation structure and well solve the problem of beam end ultra-large displacement expansion deformation caused by temperature difference between a bridge and a track. Comprising track panel structure units which are continuously arranged on the top face of a bridge body in the direction from a main span side pier to a junction pier, the longitudinal front end of the first track panel structure unit is connected with the main span beam body in an anchoring mode through an anchoring device, and the tail track panel structure unit longitudinally spans a super-large beam seam. The main body of the track skeleton structure unit comprises a bearing rail beam section and a frame type track skeleton unit, the bearing rail beam section and the main span beam body are fixedly connected into a whole, the frame type track skeleton unit is buckled and installed on the bearing rail beam section through an elastic strip fastener, and a longitudinal telescopic structure and a vertical and transverse limiting structure are arranged between the bearing rail beam section and the frame type track skeleton unit; a pair of F-shaped guide rails are fixedly installed on the top face of the frame type track panel unit in the transverse direction at intervals, and wing plate connectors are arranged between the longitudinally adjacent F-shaped guide rails.
中低速磁浮大跨桥梁梁端超大位移轨排伸缩装置，以实现高精度磁浮轨道与基础结构变形协调控制，很好地解决桥梁和轨道因温差而产生的梁端超大位移量伸缩变形。包括在桥梁梁体顶面上由主跨边墩向交界墩方向连续设置的轨排结构单元，其中首节轨排结构单元的纵向前端通过锚固装置与主跨梁体锚固连接，末节轨排结构单元纵向跨越超大梁缝；轨排结构单元的主体包括承轨梁节段、框架式轨排单元，承轨梁节段与主跨梁体固结为一体，框架式轨排单元由弹条扣件扣压安装在承轨梁节段上，承轨梁节段与框架式轨排单元与之间具有纵向伸缩结构和竖向及横向限位结构；框架式轨排单元的顶面上横向间隔固定安装一对F型导轨，纵向相邻的F型导轨之间设置翼板接头。
Medium-low speed maglev large-span bridge beam end ultra-large displacement track panel telescopic device
中低速磁浮大跨桥梁梁端超大位移轨排伸缩装置
CAI WENFENG (author) / HU LIANJUN (author) / ZHANG WEIFENG (author) / YANG WENMAO (author) / QIAN KEYUAN (author) / LIN HONGSONG (author) / DAI FENG (author)
2023-12-01
Patent
Electronic Resource
Chinese
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