| 自锚式悬索桥悬浮式散索套下主缆线形控制 |
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| 引用本文： | 李爱地,郭军.自锚式悬索桥悬浮式散索套下主缆线形控制[J].铁道建筑技术,2009(10):22-23,50. |
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| 作者姓名： | 李爱地 郭军 |
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| 作者单位： | 中铁十五局集团有限公司南京公司,南京,210019 |
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| 摘 要： | 江心洲右汊大桥缆索系统为空间结构，主缆边跨平行锚固侧设置悬浮式散索套，主跨空间锚固侧设置散索鞍。因边跨散索套重量及锚固区设置影响，主缆空缆线形即为有散索套重量下的空缆线形。主缆架设时，通过外力转换，使主缆线形满足监控及设计要求的有散索鞍重量下空缆线形。
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| 关 键 词： | 自锚式悬索桥 散索套 空缆线形 外力置换 |
Main Cable Shape Control with Suspension Splay Casting in Cable Self-anchored Suspension Bridge |
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| Li Aidi,Guo Jun.Main Cable Shape Control with Suspension Splay Casting in Cable Self-anchored Suspension Bridge[J].Railway Construction Technology,2009(10):22-23,50. |
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| Authors: | Li Aidi Guo Jun |
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| Institution: | (China Railway 15^th Bureau Group Co. Ltd. , Nanjing 210019, China) |
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| Abstract: | Right Branch Main Bridge in Jiangxin Island of Nanjing Yangtze River Tunnel Project is a spatial cable self-anchored suspension bridge. Suspension splay casting is set in the parallel anchors in side span of main cables, and sliding saddle is set in the spatial anchors of main span. Due to the influence of the weight and anchorage zone of the side span splay casting, unloaded cable shape is the shape with splay casting weight. When the main cable is erected, through transfer of external forces, main cable＇ s shape can meet the designed and monitored requirement of being unloaded cable shape with the splay casting＇ s weight. |
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| Keywords: | self-anchored suspension bridge splay casting unloaded cable shape external force replacement |
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