Novel protective sleeve for cable-stayed bridge inhaul cable and using method thereof: Fid-Bau Portal

Novel protective sleeve for cable-stayed bridge inhaul cable and using method thereof

WU WUJI

The invention discloses a novel protective sleeve for a cable-stayed bridge inhaul cable and a using method thereof, and belongs to the technical field of bridge safety. The novel protective sleeve for the cable-stayed bridge inhaul cable comprises a main protection mechanism, a sealing head mechanism and an inhaul cable. Sealing head mechanisms are arranged at the two ends of the main protectionmechanism correspondingly, the main protection mechanism comprises an outer protection sleeve, two symmetrically-arranged inner connecting sleeves are arranged in the outer protection sleeve, a waterinjection pipe is fixedly connected to the inner wall of the outer protection sleeve, and a plurality of evenly-distributed water injection holes are formed in the outer wall of the side, away from the outer protection sleeve, of the water injection pipe. When the inhaul cable hanging cable is tensioned, the protective sleeve can perform protection, the protective sleeve does not extend along withstress of the cable body and can be prevented from working in a stress state and is not prone to damage and is long in service life so that the inhaul cable is prevented from being corroded and damaged, maintenance and replacement cost is also reduced, and the protective sleeve is convenient to install, easy to operate and good in inhaul cable protecting effect.

本发明公开了一种斜拉桥拉索用新型保护套及其使用方法，属于桥梁安全技术领域，一种斜拉桥拉索用新型保护套，包括主保护机构、密封头机构以及拉索，主保护机构的两端均设置有密封头机构，主保护机构包括外保护套，外保护套的内部设置有两个对称设置有内连接套，外保护套的内壁上固定连接有注水管，注水管的远离外保护套一侧的外壁上开设有多个均匀分布的注水孔。可以实现保护套在拉索挂索张拉时，不会随索体受力伸长，可防止保护套处于应力状态下工作，进而使得保护套不易损坏、使用寿命长，从而防止拉索受腐蚀损坏，同时也降低了保护套维护、更换的成本，且安装方便、操作简单，对拉索的保护效果较好。

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