摘要
以某高速公路为研究背景,基于工程特点和地质条件,依托规范,进行整体建模计算分析,设计了某大跨径矮塔斜拉桥。上部结构采用预应力混凝土部分斜拉桥,跨径布置为118 m+220 m+118 m,单箱双室大悬臂斜腹板展翅宽幅箱形主梁,人字形主塔,单索面扇形、横向双排布置斜拉索,塔梁墩固结体系;下部结构采用双肢薄壁墩、群桩基础。该设计结果可以满足桥梁结构稳定性保障、经济效益控制以及桥梁环保设计等方面的需求。
With an expressway as the research background,based on engineering characteristics,geological conditions and design code,the finite element numerical analysis was carried out to design a large-span extradosed cable-stayed bridge.The superstructure adopts prestressed concrete partial cable-stayed bridge with span arrangement of 118 m+220 m+118 m,single box and double chamber large cantilever diagonal web wide box girder and Herringbone-shaped main tower.The cable-stayed cables are arranged in single plane fan-shaped and double horizontal rows.The tower girder pier is consolidated system.The lower structure adopts double-limb thin-wall pier and pile group foundation.The results can meet the needs of bridge structural stability,economic benefit control and environmental protection design.
作者
杨吉红
熊娟
YANG Ji-hong;XIONG Juan(Hubei Communications Investment Wutian Expressway Co,Ltd,Tianmen 431701,China;Hubei Communications Planning and Design Institute Co,Ltd,Wuhan 430051,China)
出处
《建材世界》
2024年第2期85-89,共5页
The World of Building Materials
关键词
斜拉桥
桥梁设计
双肢薄壁墩
结构验算
cable-stayed bridge
bridge design
double-limb thin-wall pier
structural checking
作者简介
杨吉红(1975-),高级工程师.E-mail:332859467@qq.com;通讯作者:熊娟(1983-),高级工程师.E-mail:39089530@qq.com。
