宁启线门式墩刚构连续梁特大桥设计研究

Study on Grant Bridge Design of Gantry Pier Rigid Frame Continuous Beam on Ningqi Line

门式墩刚构连续梁是门式墩和刚构连续梁2种结构的结合体,这种结构的最大优点是建筑结构高度低。宁启线在新增2线建设中采用了32.65 m+34.7 m×2+32.65 m门式墩刚构连续梁特大桥上跨正元港务专用线、新长线、既有宁启线等3条线路,文章就宁启线门式墩刚构连续梁特大桥结构设计、结构计算作简要阐述。

Gantry pier rigid frame continuous beam is a combination of two kinds of structure of gantry pier and rigid frame continuous beam. The major advantage of this structure is that structural height is low. The newly constructed second track on Ningqi line constructed with the gantry pier rigid frame continuous beam grant bridge over crossing three lines, namely Zhengyuan harbor dedicated line, XinChang line, existing Ningqi line. The paper describes brielfy the structural design and structural calculations of the grant bridge with gantry pier rigid frame continuous beam on Ningqi line.