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介绍正在施工的高赞大桥的设计概况,该桥主跨为280 m的双塔单索面预应力混凝土斜拉桥,塔墩梁固结,边跨设辅助墩,主塔为六边菱形空心独柱式,主墩为双薄壁矩形柔性墩,主梁采用抗风性能优越的大悬臂单箱三室的准三角形断面。主桥采用综合调索法确定成桥状态恒载内力。在合龙后,为调整主梁根部及跨中内力进行了合龙后调索。除常规分析计算外,还做了全桥的施工及使用过程的块体单元仿真分析。
This paper introduces the design of Gaozan Bridge, which is under construction. The main span of the bridge is 280m double-column single cable prestressed concrete cable-stayed bridge. The pier is consolidated and the auxiliary pier is spanned. The main tower is a hexagonal diamond hollow Single column, the main pier is a double thin-walled rectangular flexible pier, the main beam with superior wind resistance of the single cantilever single box three-room quasi-triangular cross-section. The main bridge using a comprehensive transfer method to determine the state of the bridge into the dead load internal forces. After the closure, in order to adjust the main beam and the internal forces in the cross after the dragging call. In addition to routine analysis and calculation, but also made a full-bridge construction and use of the process of block unit simulation analysis.