北京某矮塔斜拉桥的设计与施工实践  

Study on Design and Construction of one Extradosed Cable-Stayed Bridge in Beijing

作　　者：庄年[1] 应伟强[1] 

机构地区：[1]北京市市政工程设计研究总院,100082

出　　处：《特种结构》2011年第1期89-92,共4页Special Structures

摘　　要：北京通州玉带河大桥主桥为4跨3塔双索面预应力混凝土矮塔斜拉桥,主桥孔跨为45+85+85+45m,采用中塔塔梁固结、边塔塔梁与墩分离、墩顶设支座的结构形式。本文以该桥为例,浅析了预应力混凝土部分斜拉桥的桥型特点、受力特性,主要介绍了该类桥型的设计构思及要点,论述了该桥施工方案的选择及施工要点。The main bridge of Tongzhou Yudaihe Bridge is a kind of prestressed concrete extradosed cable-stayed bridge with four span three pylon and double-cable-plane.Spans are attributed as（45 ＋ 85 ＋ 85 ＋ 45 ） m.The middle tower girder and pier are fixed.The side tower girder and pier are separated and supports mounted on the top of pier.Taking this bridge as an example,the characteristics of bridge type and force principle of the extradosed cablestayed bridge are simply analyzed.In this paper,the design conception and design gist of this type bridge are mainly introduced,and the construction scheme and construction techniques of this bridge are discussed.

关 键 词：矮塔斜拉桥 设计构思 施工方案 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]