江东大桥空间缆自锚式悬索桥体系转换分析研究

Analysis on Structure System Transformation of Jiangdong Self-anchored Suspension Bridge with Spatial Cables

杭州市江东大桥为空间缆自锚式悬索桥,主跨为260m。该桥采用独柱桥塔、空间缆索、宽桥面、分离式钢箱、单跨悬吊的结构形式。体系转换全过程先梁后缆施工工艺要求高、难度大、独创点多。对体系转换过程的研究可为同类型桥梁的体系转换提供借鉴。

Jiang Dong Bridge in Hang Zhou City is a self-anchored suspension bridge with spatial cables.The main span is 260m with a single-column tower.Served as the wide pavements,the separated steel girders are hanged in one span.The construction technique for structure system transformation is complex and difficult.The study results can be referred to the similar bridges in future.