矮塔斜拉桥是介于连续梁桥和斜拉桥之间的一种新桥型。本文以松原市宁江松花江 特大桥为工程背景,总结了这种桥型的起源及发展历程,讨论了矮塔斜拉桥的桥型特点及设计要点。通过桥梁博士及 ANSYS 等大型有限元软件对矮塔斜拉桥进行了理论分析, 得出了矮塔斜拉桥具有美观、跨径布置灵活、施工方便、经济性好等诸多优点。并对矮塔斜拉桥的未来及发展趋势进行了展望。 关键词:矮塔斜拉桥;连续梁桥;跨径布置 The extradosed cable-stayed bridge is a new kind of bridge type between the continuous beam bridge and the cable-stayed bridge. Based on the Ningjiang Songhuajiang Super Large Bridge in Songyuan city, this paper summarized the origin and development of this kind of bridge, discussed structure characteristics and key design points of the extradosed cable-stayed bridge. Theoretical analysis on the extradosed cable-stayed bridge was carried out by large finite element softwares such as and ANSYS and so on, the results showed that the extradosed cable-stayed bridge has lots of advantages such as pleasing shape, flexible span layout, convenient construction, good economical benefit prospect of future development trends of the extradosed cable-stayed bridge was also put forward. Keys words: Extradosed cable-stayed bridge, Continuous beam bridge, Span layout II 目录 第一章绪论.............................................................................................................................. 1 矮塔斜拉桥的起源与发展........................................................................................... 1 矮塔斜拉桥的优点....................................................................................................... 5 本文的主要研究工作................................................................................................... 5 第二章矮塔斜拉桥的特点及结构设计重点.......................................................................... 6 矮塔斜拉桥概述........................................................................................................... 6 矮塔斜拉桥的结构特点............................................................................................... 7 结构体系..........................................................................................
