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受规划及引桥控制,南仓斜拉桥采用联塔分幅、塔梁固结体系的独塔斜拉桥,介绍了该桥的设计、构造特点,建立整体结构分析模型,对施工及运营阶段结构受力进行了研究。考虑下部结构及桩侧土作用,建立空间有限元模型,研究了其动力特性、稳定问题,并用反应谱法、时程分析法对其抗震问题进行了对比研究,得出了一些有益的结论。
Under the control of planning and approach control, the Nankang cable-stayed bridge adopts the single-tower cable-stayed bridge with the tower section and the tower-girder consolidation system. The design and construction features of the bridge are introduced, and the overall structural analysis model is established. During the construction and operation phases Structural forces were studied. Taking the effect of substructure and pile side soil into account, the space finite element model is established, its dynamic characteristics and stability are studied, and its seismic response is compared by response spectrum method and time-history method. Some useful conclusions are obtained.