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5特大跨径悬索桥分体式钢箱梁设计关键技术研究依托西堠门大桥工程,对特大跨径悬索桥分体式钢箱梁的受力特性进行研究。采用子结构有限元技术建立全桥模型(可消除局部模型产生的模拟偏差),研究分体式钢箱梁在静风、温度、汽车等作用下的受力特性和传力机理,建立特大跨径悬索桥钢箱梁精确有效的计算方法,编制相应的解析计算程序。
5 Research on Key Techniques of Designing Split Steel Box Girders for Super Large Span Suspension Bridge Based on the project of Xikangmen Bridge, the mechanical characteristics of split steel box girders for super long span suspension bridges are studied. The full-bridge model (which can eliminate the analog deviation caused by local models) is established by using the finite element method of sub-structure. The mechanical characteristics and force transmission mechanism of the split steel box girder under static wind, temperature and automobile are studied. Box girder accurate and effective calculation method, the preparation of the corresponding analytical calculation procedures.