多跨长联空腹式连续梁桥结构设计

On structural design for multi-span long connected open-spandrel continuous girder bridge

结合马尾大桥工程实例,利用梁—拱组合受力机制,介绍了主梁、空腹段及桥墩构造等设计要点,并通过Midas/Civil,ANSYS等软件,对桥梁的静力特性与抗震能力进行了分析,充分证明结构设计的合理,为同类型桥梁的设计积累了经验。

Combining with the engineering example at Mawei Avenue,the paper adopts the beam-arch combined stress mechanism,introduces the design points for the main beam,hollow-spandrel section and pier structure,analyzes the static features and seismic performance of the bridge by adopting Midas / Civil and ANSYS,and proves the structural design is reasonable,so it accumulates some experience for similar bridges.