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Tower top catwalk arrangement structure adapting to large pre-deviation of main cable saddle and conversion method
The invention belongs to the technical field of suspension bridge superstructure construction, and particularly relates to a tower top catwalk arrangement structure adapting to large pre-deviation of a main cable saddle and a conversion method. The tower top catwalk arrangement structure at least comprises a cable bent tower, a grating and two groups of catwalk cable rotating saddles arranged at the tower top of the cable bent tower, and further comprises a catwalk cable rotating saddle structure and a lifting mechanism which are supported at the grating. The tower top catwalk line shape smoothness problem under the large pre-deviation of the main cable saddle is effectively solved, the operation requirements of workers for erecting main cable strands in the early stage are met, meanwhile, after the catwalk is overall lifted through the lifting mechanism, the catwalk cable saddle rotating structure supported at the grating is cut off, and the lifting mechanism lowers and converts the catwalk overall, the main cable saddle rotating structure is cut off through the lifting mechanism. The operation requirement that the catwalk moves towards the main span along with graded pushing of the main cable saddle in the stiffening beam hoisting and erecting stage is met.
本发明属于悬索桥上部结构施工技术领域，具体涉及一种适应主索鞍大预偏量的塔顶猫道布置结构及转换方法。本发明的塔顶猫道布置结构至少包括索塔、格栅和设置在索塔塔顶处的两组猫道转索鞍，还包括支撑于格栅处的猫道转索鞍结构和提升机构。本发明有效地解决了主索鞍大预偏量下塔顶猫道线形平顺性问题，不仅满足了前期主缆索股架设作业人员的操作需求，同时，经过提升机构将猫道整体提升、支撑于格栅处的猫道转索鞍结构切除、提升机构将猫道整体下放转换后，保证了猫道在加劲梁吊装架设阶段随主索鞍分次顶推一起向主跨移动的操作需求。
Tower top catwalk arrangement structure adapting to large pre-deviation of main cable saddle and conversion method
The invention belongs to the technical field of suspension bridge superstructure construction, and particularly relates to a tower top catwalk arrangement structure adapting to large pre-deviation of a main cable saddle and a conversion method. The tower top catwalk arrangement structure at least comprises a cable bent tower, a grating and two groups of catwalk cable rotating saddles arranged at the tower top of the cable bent tower, and further comprises a catwalk cable rotating saddle structure and a lifting mechanism which are supported at the grating. The tower top catwalk line shape smoothness problem under the large pre-deviation of the main cable saddle is effectively solved, the operation requirements of workers for erecting main cable strands in the early stage are met, meanwhile, after the catwalk is overall lifted through the lifting mechanism, the catwalk cable saddle rotating structure supported at the grating is cut off, and the lifting mechanism lowers and converts the catwalk overall, the main cable saddle rotating structure is cut off through the lifting mechanism. The operation requirement that the catwalk moves towards the main span along with graded pushing of the main cable saddle in the stiffening beam hoisting and erecting stage is met.
本发明属于悬索桥上部结构施工技术领域，具体涉及一种适应主索鞍大预偏量的塔顶猫道布置结构及转换方法。本发明的塔顶猫道布置结构至少包括索塔、格栅和设置在索塔塔顶处的两组猫道转索鞍，还包括支撑于格栅处的猫道转索鞍结构和提升机构。本发明有效地解决了主索鞍大预偏量下塔顶猫道线形平顺性问题，不仅满足了前期主缆索股架设作业人员的操作需求，同时，经过提升机构将猫道整体提升、支撑于格栅处的猫道转索鞍结构切除、提升机构将猫道整体下放转换后，保证了猫道在加劲梁吊装架设阶段随主索鞍分次顶推一起向主跨移动的操作需求。
Tower top catwalk arrangement structure adapting to large pre-deviation of main cable saddle and conversion method
一种适应主索鞍大预偏量的塔顶猫道布置结构及转换方法
SHU HONGSHENG (author) / ZHANG HAOWEI (author) / KANAKURA (author) / LIU XUN (author) / LIN JIMING (author) / GENG XIANGYUN (author)
2024-07-12
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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