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Method for arranging seamless track steel rail telescopic adjusters on railway suspension bridge
The invention discloses a method for arranging seamless track steel rail telescopic adjusters on a railway suspension bridge, and belongs to the technical field of design construction and operation maintenance of the railway suspension bridge, two groups of one-way steel rail telescopic adjusters are arranged on a main beam, a stock rail is arranged close to the middle side of a main span, and a point rail is arranged close to a side span bridge or a roadbed side; a welding seam at the heel part of the switch rail is arranged between the 20th sleeper and the 21th sleeper at the end part of the main beam; the stock rail is controlled to stretch out and draw back, a rail brace of the stock rail is tightly attached to a rail waist and a rail bottom, and the normal resistance fasteners with the buckling pressure of 15 kN/m are adopted; a switch rail is allowed to stretch out and draw back, a gap of 1mm is reserved between a switch rail brace and a rail web and a gap of 1mm is reserved between the switch rail brace and a rail bottom, a small-resistance fastener with the fastening pressure of 6kN/m is adopted within the range of 20 m when the switch rail begins to be fastened and pressed, and a constant-resistance fastener with the fastening pressure of 15kN/m is adopted after the range of 20 m when the switch rail begins to be fastened and pressed; and the expansion amount of the regulator is more than 400mm and is greater than the maximum expansion amount of the main beam under the action of temperature.
本发明公开了一种铁路悬索桥上无缝线路钢轨伸缩调节器布设方法，属于铁路悬索桥设计施工及运营维护技术领域，在主梁上设置2组单向钢轨伸缩调节器，基本轨布置在靠主跨中侧，尖轨布置在靠边跨桥梁或路基侧；尖轨跟部的焊缝布置在距主梁端部第20根和21根轨枕中间；控制基本轨伸缩，基本轨轨撑与轨腰和轨底密贴，全部采用扣压力为15kN/m.轨的常阻力扣件；尖轨允许伸缩，尖轨轨撑与轨腰和轨底均保留1mm的间隙，尖轨开始扣压的20m范围内采用扣压力为6kN/m.轨的小阻力扣件，之后范围采用扣压力为15kN/m.轨的常阻力扣件；调节器伸缩量400mm以上，大于温度作用下主梁的最大伸缩量。
Method for arranging seamless track steel rail telescopic adjusters on railway suspension bridge
The invention discloses a method for arranging seamless track steel rail telescopic adjusters on a railway suspension bridge, and belongs to the technical field of design construction and operation maintenance of the railway suspension bridge, two groups of one-way steel rail telescopic adjusters are arranged on a main beam, a stock rail is arranged close to the middle side of a main span, and a point rail is arranged close to a side span bridge or a roadbed side; a welding seam at the heel part of the switch rail is arranged between the 20th sleeper and the 21th sleeper at the end part of the main beam; the stock rail is controlled to stretch out and draw back, a rail brace of the stock rail is tightly attached to a rail waist and a rail bottom, and the normal resistance fasteners with the buckling pressure of 15 kN/m are adopted; a switch rail is allowed to stretch out and draw back, a gap of 1mm is reserved between a switch rail brace and a rail web and a gap of 1mm is reserved between the switch rail brace and a rail bottom, a small-resistance fastener with the fastening pressure of 6kN/m is adopted within the range of 20 m when the switch rail begins to be fastened and pressed, and a constant-resistance fastener with the fastening pressure of 15kN/m is adopted after the range of 20 m when the switch rail begins to be fastened and pressed; and the expansion amount of the regulator is more than 400mm and is greater than the maximum expansion amount of the main beam under the action of temperature.
本发明公开了一种铁路悬索桥上无缝线路钢轨伸缩调节器布设方法，属于铁路悬索桥设计施工及运营维护技术领域，在主梁上设置2组单向钢轨伸缩调节器，基本轨布置在靠主跨中侧，尖轨布置在靠边跨桥梁或路基侧；尖轨跟部的焊缝布置在距主梁端部第20根和21根轨枕中间；控制基本轨伸缩，基本轨轨撑与轨腰和轨底密贴，全部采用扣压力为15kN/m.轨的常阻力扣件；尖轨允许伸缩，尖轨轨撑与轨腰和轨底均保留1mm的间隙，尖轨开始扣压的20m范围内采用扣压力为6kN/m.轨的小阻力扣件，之后范围采用扣压力为15kN/m.轨的常阻力扣件；调节器伸缩量400mm以上，大于温度作用下主梁的最大伸缩量。
Method for arranging seamless track steel rail telescopic adjusters on railway suspension bridge
一种铁路悬索桥上无缝线路钢轨伸缩调节器布设方法
CHEN XIAOPING (author) / REIKO (author) / YANG HUAPING (author) / SHAO JUNHU (author) / LIN ZHIMIN (author) / DING SHIHAI (author) / WANG JINGANG (author) / FAN YUXIANG (author) / WANG HAILIN (author)
2024-09-06
Patent
Electronic Resource
Chinese
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