汉中龙岗大桥主塔设计  

The Pylon Design of Long Gang Bridge in Han Zhong

作　　者：张和[1] 丁燕[1] 商岸帆[1] 

机构地区：[1]中国水电顾问集团西北勘测设计研究院有限公司,陕西西安710065

出　　处：《公路工程》2014年第6期204-207,222,共5页Highway Engineering

摘　　要：汉中市龙岗大桥主桥为三塔斜拉-自锚式悬索协作体系桥,跨径组合为25 m+90 m+2×162.5 m+90 m+25 m。主桥桥型以"鱼跃龙门"为构思主题,主塔采用"H"型空心薄壁塔身,钢筋混凝土结构;上塔柱拉索锚固区采用"井"字预应力钢筋来平衡拉索水平分力。介绍了主塔造型的景观构思,对桥塔结构特点、结构设计构造、整体计算和拉索锚固区局部应力分析结论进行介绍。The pylon design of long gang bridge in Hart zhong is the he three pylons cable-stayed and self anchored suspension bridge,the span is 25 m ＋90 m ＋2 × 162.5 m ＋90 m ＋25 m. The main bridge with ＂leap＂ for the concept,＂H＂ type hollow thin-walled tower is used in the pylon,and is reinforced concrete structure. Pylon anchorage zone of the ＂#＂ prestressed reinforced to balance the horizontal component of cable. This paper introduces the conception of pylon landscape modeling, on the pylon structure, structure design, calculation and analysis of local stress in Anchorage Zone of the conclusion are introduced.

关 键 词：三塔斜拉-自锚式悬索协作体系 主塔造型 结构设计 结构计算 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]