大跨度悬索桥空间力学性能研究

Study on Spatial Mechanical Behavior of Long Span Suspension Bridges

以某实际悬索桥为算例,建立平面计算和空间计算模型,求得悬索桥空间效应系数,并通过对该实桥方案不同车道宽、不同车道数下偏载系数的研究,得出悬索桥偏载系数与车道宽及车道数的关系。以坝陵河悬索桥为算例,探讨了悬索桥的横桥向力学性能及其影响因素。所得结论可为悬索桥设计施工提供参考。

An actual suspension bridge was performed by comparing the results with 2D finite element(FE) model and 3D FE model, space effect coefficient was calculated.Focused on the relationship between eccentric coefficient of main cable and lane width and lane number.The lateral direction mechanic behavior and influencing factors was discussed too.The conclusions can provide a reference for the suspension bridge design and construction.