润扬长江公路大桥南汊悬索桥塔墩的设计特色

Design of the pylon for Zhenjiang-Yangzhou Yangtze River Highway Bridge

介绍润扬长江公路大桥南汊悬索桥南、北塔基础和塔身设计特色。南汊悬索桥塔柱采用双向变壁厚方案 ,更好地符合桥塔的受力特点 ;塔顶施工期间 ,采用钢托架取代塔顶牛腿方案 ,美化桥塔设计 ;应用纤维网增强混凝土 (FRC) ,提高塔身的抗船撞能力。

An introduction is given to design characteristics of pylon foundation and pylon body of the south tributary suspension bridge. Two\|way variable thickness design was adopted for the pylon shaft for better force bearing performance. During construction of pylon top,steel bracket was used instead of corbel on the top for better appearance. Fiber reinforced concrete (FRC) was used to improve the collision-resistant capacity.