大跨度钢桁架拱桥基于稳定性分析的风撑研究

Research on Large-span Steel Truss Arch Bridge Based on the Brace Wind Stability

对于大跨度钢桁架拱桥,横向风撑的数量、布置位置、样式以及刚度等因素对其稳定性影响明显。文章介绍了钢桁架拱桥的常见风撑结构形式,并设计了8种不同风撑结构形式,然后通过对比分析其稳定性。

For large - span steel truss arch bridges, the amount, position, style and stiffness of lateral wind bracings have great effects on stability. General structures of wind bracing of steel truss arch bridges are introduced, and eight kinds of wind bracings are designed. By analyzing and comparing stabilities of different schemes, the effects of style and stiffness of wind bracing on stability of steel truss arch bridge are analyzed.