Personnel inspection channel for bridge expansion joint and construction method thereof: Fid-Bau Portal

Personnel inspection channel for bridge expansion joint and construction method thereof

LU MIN / CHEN LIANG / JIANG ZHAOXI / WANG BAOYU

The invention provides a maintainer inspection channel for a bridge expansion joint. The bridge expansion joint is arranged between an underwater main bridge steel box girder and an underwater approach bridge steel box girder. The maintainer inspection channel is characterized in that an inspection channel bottom plate is arranged at the bridge expansion joint, inspection channel side plates are arranged on both sides of the inspection channel bottom plate, one side of each inspection channel side plate is connected with the inspection channel bottom plate through a hinge, the other sides of the inspection channel side plates are connected with a bottom plate of the underwater main bridge steel box girder or a bottom plate of the underwater approach bridge steel box girder through hinges,the inclination angles between the inspection channel side plates and a horizontal plane change along with the expansion and contraction of a bridge, and the height of the inspection channel bottom plate changes. According to the maintainer inspection channel, the expansion problem of both ends of the bridge expansion joint along with the temperature change in four seasons is not influenced, and additionally, the problems of safe passage and evacuation of equipment inspection personnel in box girders on both ends of a main bridge and an approach bridge can be effectively solved.

本发明提供了一种用于桥梁伸缩缝处的检修人员巡检通道，水中主桥钢箱梁和水中引桥钢箱梁之间设有桥梁伸缩缝，其特征在于桥梁伸缩缝处设有巡检通道底板，巡检通道底板两侧设巡检通道侧板，巡检通道侧板的一侧通过铰链和巡检通道底板连接，巡检通道侧板的另一侧通过铰链与水中主桥钢箱梁底板或水中引桥钢箱梁底板连接，随着桥梁伸缩，巡检通道侧板与水平面之间的倾斜角度发生变化，巡检通道底板产生高度变化。本发明实现了既不影响到桥梁伸缩缝处两端随着四季温度变化的伸缩问题，同时也能有效地解决主桥与引桥两端箱梁内设备巡检人员的安全通行及疏散问题。

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