叠合系杆拱的设计构思

Stacked Tied Arch Bridge and its Design Consideration

叠合系杆拱是一种新型桥梁.某大桥设计方案采用叠合钢管混凝土系杆拱桥,从该桥的总体设计出发,探讨了该桥的最优矢跨比组合,并对该体系的孔跨布置、纵横梁及系杆、吊杆、横撑的设计做了介绍.最后探讨了该桥型的结构特点和受力特征.

Stacked tied arch bridge is a new bridge system. The system is used to design scheme of a bridge. Through the overall design of a stacked concrete-filled steel-tabular tied arch bridge, the rational combination of the rise-span ratios is investigated. Then the design of spans arrangement, the longitudinal girders, the cross girders, the tied members, the hangers and transverse braces are introduced. Finally, the structural and mechanical characteristics of stacked tied arch bridge are investigated.