摘要
针对自锚式悬索桥的结构体系特性、先梁后缆施工工艺特点,结合工程实例,采用有限元对独塔自锚式悬索桥体系转换吊索的两种张拉方案进行计算分析,从设计的角度提出可供施工及监控参考的可实施张拉方案,并在设计、施工等方面提出建议。
According to the structural system characteristics of self-anchored suspension bridge and the construction technology characteristics of beam before cable,combined with engineering examples,two tensioning schemes of transfer sling of single tower self-anchored suspension bridge system are calculated and analyzed by using finite element method,and the feasible tension scheme for construction and monitoring is proposed from the design point of view.Some suggestions on design and construction are put forward.
作者
刘少华
LIU Shaohua(Beijing Guodaotong Highway Design&Research Insitute Co.,Ltd.,Beijing 100161 China)
关键词
自锚式悬索桥
体系转换
吊索张拉
无应力长度
self-anchored suspension bridge
system conversion
sling tension
unstressed length
