独塔双索面混合体系自锚式悬索桥设计与研究

以湖南某工程为背景,研究国内较少采用的独塔、双索面混合体系自锚式悬索桥的设计方法,提出主跨采用钢加劲梁边跨采用混凝土梁、减小边跨跨度、设置外伸跨等技术措施,降低加劲梁应力水平,使得结构更趋合理,同时节约了钢材用量,大幅度降低了工程投资。

Design and Research of Mixed System Self-anchored Suspension Bridge of Single Tower and Double Cable Planes

Base on an actual project in Hunan,the design method of mixed system self-anchored suspension bridge with single tower and double cable planes is studied,and technical measures are proposed such as using steel stiffening beam in main span and concrete girder in side span,reducing the length of side span,setting up overhang span. As such,the stress level of stiffening beam is reduced,structure is more reasonable,steel consumption and project investment are significantly saved.