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拱梁组合体系,是介于梁桥和拱桥之间的结构体系,其本身兼顾了两者的优点,同时也有自己的结构特点。吊杆索力调整是此体系中至关重要的环节,其直接影响拱肋和主梁的受力,而桥梁博士中提供了此类设计的设计工具,比较系统地解决了索力调整的各个关键技术。湖南常德北部新城25号桥为下承式三跨预应力拱梁组合体系景观桥,本文以此桥为背景,使用桥梁博士有限元分析软件,通过使用调索功能,实现拱肋和预应力混凝土设计的快速优化,为同类工程项目的设计提供借鉴和参考。
The arch-beam combination system is a structural system between the beam bridge and the arch bridge, taking into consideration the advantages of both and has its own structural features as well. Suspension rod force adjustment is a crucial link in this system, which directly affects the stress of the arch rib and the main girder, while Dr. Bridge provides a design tool of such design, which systematically solves the problem of each Key technologies. Bridge No.25 of Changde Northern New City in Hunan Province is a landscape bridge of three-span under-span prestressed arch-girder combination system. Based on the bridge, this paper uses the finite element analysis software of bridge and the use of the cable transfer function to realize the arch rib and prestressed concrete The rapid optimization of design provides reference and reference for the design of similar projects.