松原龙华松花江特大桥桥型方案优化设计研究

A design on bridge-type program of Songhua River bridge in Songyuan Longhua

对松原市龙华松花江特大桥的桥型方案做了较详细的设计研究,论述了该桥桥型方案的设计过程,分别介绍了简支转连续T梁桥、预应力混凝土连续箱形刚构桥、双塔双索面预应力混凝土斜拉桥、中承式钢管混凝土拱桥和连续钢箱梁悬索桥等5种桥梁结构型式,将各方案从结构受力、施工养护难易程度、使用舒适性、桥梁美观及造价等方面进行比较,最后确定采用预应力混凝土连续箱形刚构桥。

This paper makes a detailed study on the design to the bridge-type program of Songhua River in Songyuan Longhua bridge and discusses the design process about this bridge-type program. It respectively introduces 5 bridge structure types which includes simply supported continuous T- beam bridge, prestressed concrete continuous rigid frame box girder bridge, prestressed concrete twin- pairs of cable-plane cable-stayed bridge, concrete filled steel tubular arch bridge and continuous steel box girder suspension bridge. It also has a comparison among the structural stress analysis, ease of construction and maintenance, the use of comfort, bridge aesthetics and cost. At last, it adopts prestressed concrete continuous rigid frame box girder bridge.