独塔空间扭索面斜拉桥分体式钢箱梁设计  

Design of Split Steel Box Girders for Single Tower Space Torsion Cable Plane Cable-Stayed Bridges

作　　者：陈轶迪 张楠 武星[2] CHEN Yi-di;ZHANG Nan;WU Xing(Tongji University Architectural Design&Research InstituteCo.,Ltd.,Shanghai 200092,China;China Communications First Highway Survey&Design Institute Co.,Ltd.,Xi'an 710075,China)

机构地区：[1]同济大学建筑设计研究院(集团)有限公司,上海200092 [2]中交第一公路勘察设计研究院有限公司,陕西西安710075

出　　处：《中国市政工程》2023年第6期1-5,93,共6页China Municipal Engineering

摘　　要：滹沱河特大桥采用独塔独柱空间扭索面漂浮体系斜拉桥结构,跨径布置为(40+150+150+40)m。除下塔柱采用混凝土结构外,主梁与上塔柱均采用钢结构。主桥上部结构为分体式钢箱梁,主梁标准宽度67 m,为国内桥梁之最,最大宽度73 m。针对主桥的结构体系特点,钢箱梁总体构造设计包括断面构造、拉索锚固构造、主梁总体分段等设计细节及施工方案介绍。该桥的设计具有其独特之处,为今后类似斜拉桥钢箱梁设计提供一定的经验和借鉴。The Hutuo River Bridge adopts a single-pylon,single-column,space-twisting cable-plane floating system cable-stayed bridge structure with a span arrangement of(40+150+150+40)m.Except for the lower tower column,which is made of concrete,the main beam and the upper tower column are both made of steel.The upper structure of the main bridge is a split steel box girder with a standard width of 67 m,which is the largest in China,and a maximum width of 73 m.According to the structural system characteristics of the main bridge,the overall structural design of the steel box girder includes design details such as section structure,cable anchorage structure,and overall sectioning of the main beam,as well as a construction plan introduction.The design of this bridge has its unique features,which provides certain experience and reference for the design of similar cable-stayed bridge steel box girders in the future.

关 键 词：斜拉桥 分体式钢箱梁 扭索面 桥梁设计 

分 类 号：TU448.213[建筑科学—岩土工程]