设计参数对梁拱组合桥稳定性影响研究

该文对梁拱组合体系桥的稳定性进行分析,分别考虑矢跨比、横撑的型式及其刚度、拱肋刚度等设计参数的变化对梁拱组合结构稳定性的影响。分析表明X撵、K撑对梁拱组合结构的稳定性贡献大,拱肋、横撑的侧向刚度对梁拱组合结构稳定性影响很大。

Study on Influence of Design Parameters on Stability of Beams-Arch Combined Bridge

The article analyzes the stability of the beams-arch combined bridge,separately considers the influences of design parameter variations of rise-to-span ratios,the type and rigidity of the transverse brace,and the rigidity of arch rib on the stability of the beam-arch combined structure. The analysis shows that X transverse brace,K transverse brace have great contribution to the stability of the beam-arch combined structure,and the lateral rigidity of arch rib and transverse brace have great influences on the stability of the beams-arch combined structure.