山区高填方桩承扶壁式桥台设计研究

Design and Research of High Filled Pile Buttressed Abutment in Mountainous Area

以某山区高填方市政桥梁为例,介绍了山区高填方扶壁式桥台的设计难点,并建立精细化midas有限元分析模型,对比研究了有对撑梁和无对撑梁两种桥台形式的桩基、扶壁、承台等重要构件的受力,根据受力进行结构优化及配筋,总结反思了工程设计中的难点并提出改进措施,为后续同类桥梁结构的设计提供启示和借鉴。

Taking a high filled municipal bridge in a mountain area as an example,the design difficulties of the high filled buttressed abutments in the mountainous areas are introduced.A refined Midas finite element analysis model is established to compare and study the forces of the pile foundations,buttresses,base slabs and other important components of the abutments with and without the brace beams.The structural optimization and reinforcement are carried out according to the forces.The difficulties in engineering design are summarized and reflected,and the improvement measures are put forward,which provides the inspiration and reference for the subsequent design of similar bridge structures.