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介绍了马鞍山长江大桥悬索桥主缆“S型钢丝缠+柔韧性环氧树脂底漆+柔韧性环氧树脂中间漆+柔韧性氟树脂面漆+柔韧性防滑氟树脂涂料”的涂装防护体系,以及施工过程中对S钢丝质量、缠丝质量、涂料性能和密封工艺、施工控制等方面进行的一些改进。探讨了马鞍山长江大桥悬索桥主缆涂装防护系统和施工技术工艺特点,以及成功经验和需要进一步改进的问题。
The paper introduces the main cable of the suspension bridge of the Ma’anshan Yangtze River Bridge, “S-type steel wire wrapped + flexible epoxy primer + flexible epoxy intermediate paint + flexible fluororesin topcoat + flexible non-slip fluororesin coating” System, as well as the construction process on the S wire quality, wrapped wire quality, coating performance and sealing technology, construction control and some other aspects of the improvement. The main cable coating protection system and construction technique and technical characteristics of the suspension bridge of Ma’anshan Yangtze River Bridge are discussed, as well as the successful experience and problems that need to be further improved.