双阳跨石溪河异形交叉拱桥总体设计与计算

Overall Design and Calculation of Special-shaped Cross-arch Bridge over Shixi River in Shuangyang

双阳跨石溪河桥为(26+50+26)m异形交叉拱桥,拱肋采用异形交叉双钢拱肋,主梁采用单箱双室等截面钢箱梁,设计新颖,美学效果显著。介绍了该异形交叉拱桥的总体设计,进行了整体静力计算、整体稳定性计算、整体动力特性计算,结果表明,各项指标满足规范要求、结构设计合理,可为同类型桥梁的设计提供参考。

The bridge over Shixi River in Shuangyang is a(26+50+26)m special-shaped cross-arch bridge with special-shaped cross double steel arch ribs,and steel box girders of single-box double-room uniform section as the main girder.The design is novel and the aesthetic effect is remarkable.The overall design of the special-shaped cross-arch bridge is introduced,and the overall static calculation,overall stability calculation and overall dynamic characteristics calculation are carried out.The results show that each index meets the requirement of the code and the structure design is reasonable,which can provide reference for the design of similar bridges.