基于预应力索结构的静动力和瞬态分析，对东海某大跨径悬索桥施工期暂态主缆的辅助索制振参数进行了研究，同时研究了用辅助索控制暂态主缆驰振失稳的具体方案，采用了考虑几何非线性影响的有限元数值分析研究方法，总结了驰振及辅助索制振的研究现状，建立了该悬索桥施工期暂态主缆-猫道系统的有限元模型，研究了辅助索位置、布置方式和刚度大小对暂态主缆1阶竖向振动频率的影响；研究了辅助索阻尼、刚度和个数对暂态主缆面内等效阻尼比的影响；最后研究了辅助索控制暂态主缆驰振的具体方案。结果表明：为了提高暂态主缆1阶竖向振动频率，辅助索应该对称竖向布置，且增大辅助索的数目特别是跨中设置辅助索可以较大幅度地提高该频率值；增加辅助索的直径和个数可以较大地增加对暂态主缆的面内制振效果；在该悬索桥中跨12分点处对称竖向布置每组由1根直径为10mm的钢筋组成的11组辅助索时即可控制暂态主缆的驰振失稳。

On the basis of static, dynamic and transient analysis for the prestressing cable structures, the parametres of controlling the galloping vibration of the transient main cables of some long-span suspension bridge at the construction stages with the assistant cables and detailed scheme for controlling the galloping vibration of those with the assistant cables are investigated adopting the method of the finite element considering the geometry nonlinearity. The review and propect for the galloping vibration and controling vibration with assistant cables are summarized, the finite element modeling of the system for transient main cables and catwalk is established, and the influence of the position of the assistant cables, diposed fashion and the rigidities upon the first vertical bend vibration frequencies of the transient main cables is researched. At the same time, the effect of the damp and the rigidities of the assistant cables on the equivalent damping ratio of the transient main cables inside the plane is studied. In the end,the detailed scheme for controlling the galloping vibration of the transient main cables was studied. Results show that, to increase the 1st vertical vibration frequencies of the transient main cables, the assistant cables should be liad symmetrically and in the vertical direction and the frequency can be augmented through increasing the amount of the assistant cables and setting assistant cables in the middle of the bridge. To increase the diameter and amount of the assistant cables can improve the vibration of the transient main cables inside the plane. In the end, the computation show that the galloping instability for the long-span suspension bridge at construction stages can be controlled when the 11 ssistant cables groups are liad symmetrically and vertically at 12 qual division points of the suspension bridge and the assistant are made up of the reinforcing steel bar of 10mm diameters.