基于劲性骨架法的下承式钢管混凝土拱桥受力分析

Force Analysis of Through Concret-filled Steel Tubes Arch Bridge Based on Stiff Skeleton Method

相比于传统有支架施工工法,劲性骨架法具有工期节约、对被交线影响小、结构超载潜力大等优势。依托某基于劲性骨架法设计的80m下承式钢管混凝土拱桥,阐述了该桥的劲性骨架构造细节,分析了其施工阶段和运营阶段力学行为和稳定性。

Compared with the traditional construction method for the project with brackets,the stiff skeleton method has the advantages of saving the construction time,exerting small influence on the intersection lines,and having great potential for structural overload and so on.Relying on an 80m through concrete-filled steel tubes arch bridge designed by the stiff skeleton method,the construction details of the stiff skeleton of the bridge are elaborated,and the mechanical behavior and stability of the bridge in construction and operation stages are analyzed.