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对于高墩大跨桥梁,由于日益广泛地采用高强材料和薄壁结构,因而稳定问题也就更显重要。文中介绍了稳定问题的分类与结构稳定分析的有限元理论。利用大型有限元软件ANSYS对某大桥稳定性进行了分析。
For high-span long-span bridges, the stability issue is even more important due to the increasingly widespread use of high-strength materials and thin-walled structures. This paper introduces the classification of stability problems and the finite element theory of structural stability analysis. The stability of a bridge is analyzed by using the large finite element software ANSYS.