三柱式预应力门架墩结构分析与计算

Analysis and Calculation of Three-column JPrestressed Portal Pier

针对大跨径预应力门架墩,以襄阳绕城高速公路三柱式门架墩为实例,通过建立有限元模型对施工过程及运营状态结构的受力进行分析,对门架墩的支承形式、计算参数取值、钢束张拉顺序等进行研究,为同类工程的设计与应用提供参考。

Aiming at the large-span prestressed gantry piers,this article takes a highway three-column gantry pier as an example,through the establishment of a finite element model to analyze the force of the construction process and operating state,then research on support forms,calculation parameter values,steel beam tensioning sequence,etc.to provide reference for the design and application of similar projects.