自锚式悬索桥加劲梁方案比选与设计要点研究

Scheme Comparison and Design Gist Study of Stiffening Girder of Self-anchorage Suspension Bridge

自锚式悬索桥因其受力合理、施工难度低、美观性强等特性,越来越多地应用于城市桥梁的建设中。依托宝鸡市渭河大桥的设计,针对自锚式悬索桥加劲梁进行边主梁和钢混叠合两种方案的全面比选,最终选用边主梁结构型式,并梳理了边主梁的构造设计及其与混凝土主梁的连接构造等要点,为类似自锚式悬索桥的设计提供参考。

The self-anchorage suspension bridge is more and more used in the construction of urban bridge because of its reasonable stress,low construction difficulty and good aesthetics.Based on the design of Weihe River Bridge in Baoji City,two schemes of main side girder and steel-concrete composite girder are comprehensively compared for the stiffening girder of self-anchorage suspension bridge.Finally,the structural type of side girder type is selected.The article summarizes the gist of the structural design of the main side girder and the connection structure of main concrete girder,which can be referred for the design of the similar self-anchorage suspension bridges.