四川绵阳三江大桥设计  

Design of Sanjiang Bridge in Sichuan Mianyang

作　　者：宁平华[1] 杨勇[1] 乐小刚[1] 刘兵[1] 

机构地区：[1]广州市市政工程设计研究院,510060

出　　处：《特种结构》2014年第1期56-59,121,共4页Special Structures

摘　　要：绵阳市三江大桥主桥采用人、车分离式双塔双层叠型斜拉桥结构形式,其中上层人行天桥采用"S"型布置形式,下层为车行桥,人行桥和车行桥共用桥塔。桥塔为钢—混组合结构。该桥设计充分注重结构本体的景观功能以及桥体与涪江景观规划的协调,全桥形式优美,结构紧凑。本文简要介绍了该桥的结构形式、关键构造设计及大跨径人行天桥行走的舒适性研究成果。The Sanjiang main bridge of Mianyang city was in the form of cable stayed bridge structure and separation type double stacked with twin towers. The upper bridge adopting ＂S＂ type and the lower bridge for car travelling share one tower. The tower was steel-concrete composite structure. The landscape function of the bridge structure and the coordination of bridge with Fujiang River landscape was fully paid attention in the design. The bridge form is beautiful and the structure is compact. This paper briefly introduced the structure forms, key structural design and comfort research of long-span man-walking bridge.

关 键 词：人、车分离式双塔双层斜拉桥 大悬臂箱梁 钢塔柱 人行天桥舒适性 减震 

分 类 号：U442[建筑科学—桥梁与隧道工程] U448.27[交通运输工程—道路与铁道工程]