竖吊杆与斜吊杆系杆拱结构的桥式研究

COMPARA TIVE STUDY ON THE TIED - ARCH BRIDGES WITH VERTICAL AND INCLINED HANGERS

系杆拱桥的吊杆有竖直、倾斜或网状等布置形式。通过数例分析和对比，研究了不同吊杆布局对桥梁结构静、动力特征的影响，同时还阐述了吊杆自身的静、动力特征与构造设计要点，最后，对系杆拱桥的吊杆形式选择和构造设计提出了相应的建议。

There are Three Types of hangers for tied-arch bridges: the vertical form, the inctined form and the network form. The present study indicates that different types of hangers make substantial differences on the static and the dynamic characteristics of a bridge structure, The hanger's self- possessed static and dynamic natures are also investigated as the construction design. Some suggestions on the hanger type choice and its construction are Proposed as design aids