论文标题
用于独立式摇摆柱的地震响应分析的有限元模型，带有垂直阻尼器
A finite element model for seismic response analysis of free-standing rocking columns with vertical dampers
论文作者
论文摘要
本文研究了垂直阻尼独立式摇摆柱的有限元建模。本文首先得出了耦合系统的非线性运动方程，然后将分析溶液与有限元模型进行比较。使用名为OpenSees的开源框架生产有限元模型。使用零长度的纤维横截面元件对摇摆表面进行建模，并用两个节点链路元素对阻尼器进行建模。为了模拟摇摆运动期间的能量耗散。该论文还比较了两种类型的滞后和粘性阻尼装置，并表明粘性阻尼行为与摇摆块一起使用时是有利的。然后将具有MATLAB中粘性阻尼器的刚性模型的分析模型与OpenSees模型进行比较，并且论文得出结论，有限元模型与分析模型进行了比较。
This paper investigates finite-element modeling of a vertically damped free-standing rocking column. The paper first derives the nonlinear equation of motion for the coupled system and then compares the analytical solution with finite-element model. Finite-element model is being produced using open source framework named OpenSees. The rocking surface is modeled using zero-length fiber cross-section element and the dampers are modeled with two node link elements. In order to simulate energy dissipation during the rocking motion Hilber-Hughes-Taylor numerical dissipative time step integration is being adopted. The paper also compares two types of hysteretic and viscous damping devices and it shows that the viscous damping behavior is favorable when it is used along with a rocking block. The results of analytical model of a rigid block with viscous dampers in MATLAB is then compared with OpenSees model and the paper concludes that the finite-element model compares satisfactory with the analytical model.
