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面外稳定性是影响钢管混凝土系杆拱桥稳定性的主要因素之一。在借助有限元程序的基础上,对下承式钢管混凝土系杆拱桥在成桥阶段的整体稳定性进行详细的分析验算,得出计算模型的失稳模态以及稳定安全系数。通过这些结果来分析影响钢管混凝土系杆拱桥面外稳定性的主要因素。研究成果对同类工程建设具有一定的参考价值。
Surface stability is one of the main factors affecting the stability of the CFST tied arch bridge. Based on the finite element program, the overall stability of the CFST arch bridge at the completion stage is analyzed and calculated in detail, and the instability mode and the safety coefficient of the model are obtained. The main factors affecting the out-of-plane stability of the CFST arch bridge are analyzed by these results. The research results have certain reference value for similar projects.