赣江公路大桥主缆防护技术及施工工艺

Main Cable Protecting and Construction Technology of Ganjiang Road Bridge

对悬索桥主缆钢丝采用密封胶进行防水防护对确保主缆系统安全使用和设计寿命至关重要。目前国内传统防护技术较多采用聚硫密封胶,但效果有限。赣江公路大桥主缆防护工程创新性地采用了有机硅改性聚醚密封胶作为主要的防水密封材料,取得了良好效果。

It is essential to use the sealant on the main cable steel wire of the suspension bridge for waterproof protective to ensuring the safe use of the main cable system and its design life.At present,the traditional protection technology are mostly used the polysulfide sealant in China,but the effect is limited.The main cable protection engineering of Ganjiang high bridge innovatively used the polyether sealant modified by organic silicone as a major waterproof sealing material which achieved good results.