【摘要】 该文利用Open Sees对一座三层带黏弹性阻尼器钢框架结构进行振动台试验的数值模拟,以此验证黏弹性阻尼器力学模型及分析方法的正确性。首先介绍了振动台试验,总结了黏弹性阻尼器耗能特征及减震效果;然后利用Bouc-Wen模型模拟黏弹性阻尼器的力学性能,在Open Sees中进行非线性动力时程分析模拟振动台试验;最后将数值模拟结果和试验结果进行对比分析。结果表明,模拟结果和试验结果在结构动力特征和结构响应上均吻合良好,因此验证了黏弹性阻尼器力学模型及分析方法的正确性。更多还原

【Abstract】 The numerical simulation of the shaking table test on a 3-story steel frame structure added with viscoelastic(VE) dampers using Open Sees is conducted in order to verify the mechanical model and analytical method of VE dampers. Firstly, the shaking table test is described, and the dissipation characteristics and control effect of VE dampers are summarized. Then the mechanical property of a VE damper is simulated by Bouc-Wen model, and the shaking table test is simulated through the nonlinear dynamic time-history analysis using Open Sees. Finally, the dynamic properties and structural responses in the simulation and those in the test are compared. The comparative result indicates that they agree with each other well, which means the selection and identification of Bouc-Wen model and the nonlinear analysis method are reasonable.更多还原