【摘要】 通过重庆朝天门长江大桥的节段模型静力试验和动力试验,获得了主梁及主拱的静力三分力系数随攻角的变化规律、主梁的颤振特性,识别了主梁的8个颤振导数,并对试验获得的结果进行了详细分析;对该桥的主梁和主拱结构的抗风性能进行了评价。更多还原

【Abstract】 Based on static dynamic force test of segmental models of Chongqing Chaotianmen Bridge,dynamic force test,the varying law of the coefficients of three-dimensional static component forces with the changing of attack angles and properties of main girder and main arch,and flutter property of main girder are obtained,and eight flutter derivatives of main girder are recognized.The results from the experiments are,in detail,analyzed.The anti-wind property of main girder and main arch is evaluated.更多还原