双柳长江大桥主、散索鞍钢结构制造技术
Manufacturing Technology for the Steel Structures of Main and Splay Cable Saddles for the Shuangliu Yangtze River Bridge
摘要: 双柳长江大桥为主跨1430 m的双塔单跨简支梁悬索桥，主跨布置为(430 + 1430 + 430)米。主、散索鞍是悬索桥上部结构的主要组成部分，该项目主、散索鞍鞍体均为铸焊结构，主索鞍鞍体重达170 t，散索鞍鞍体重达125 t。本文介绍该大桥主、散索鞍钢结构制造技术和质量控制要点，主、散索鞍鞍体制造完成后，经检测，各项技术指标均满足设计和规范要求。
Abstract: The Shuangliu Yangtze River Bridge is a twin-tower, single-span suspension bridge with a main span of 1430 meters; the span arrangement is (430 + 1430 + 430) meters. The main cable saddles and splay cable saddles are key components of the suspension bridge’s superstructure. For this project, the bodies of both types of saddles feature a cast-welded structure; the main cable saddle weighs 170 tons, while the splay cable saddle weighs 125 tons. This paper outlines the manufacturing technology and key quality control measures for these steel saddle structures. Post-manufacturing inspections confirmed that all technical specifications met the design and regulatory requirements.
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