【摘要】 对带有双向ＴＭＤ系统的大跨度悬索桥进行了空间非线性时程响应分析，探讨了ＴＭＤ参数对抑振效果的影响。分析结果显示，ＴＭＤ能够增大结构的表现阻尼，有较大的能量耗散作用，加速振荡的衰减，有效地抑振结构的振动，这表明，用ＴＭＤ技术对大跨度悬索桥的环境振动实施被动控制是一个有效的方法。更多还原

【Abstract】 A nonlinear time-history analysis is carried out on the suspension bridges with/withouta two dimensional TMD. The TMD is in two - way, lateral and vertical of the bridge. It is shown thatthe magnitude of vibration of the bridge with TMD can be reduced compared with the bridgewithout TMD. The damping increases largely at the same time. So the energy-dissipaton byTMD is obvious. It is concluded that passive control of vibration of the suspension bridge byTMD is effective.更多还原