基于有限元分析的上承式拱桥设计研究

Research on Design of Upper arch Bridge Based on Finite Element Analysis

由于保护生态、造价低廉和运营维护方便的特点,上承式混凝土结构拱桥在中小跨径桥梁中得到了较为广泛的应用。本文通过通用有限元软件建立了三跨拱桥的主要受力构件拱圈结构,然后针对单跨拱圈结构进行了静力受力分析、静力稳定性分析和动力特性分析,均能够满足工程需求,并具有较为显著的环保性以及经济优势和社会效益。

Due to the characteristics of ecological protection,low cost and convenient operation and maintenance,the upconstruction concrete arch bridge has been widely used in small and medium span bridges.In this paper,the main force member arch ring structure of the three-span arch bridge is established by the general finite element software,and then the static force analysis,static stability analysis and dynamic characteristics analysis are carried out for the single-span arch ring structure,which can meet the engineering requirements.And has a more significant environmental protection and economic and social benefits.