| 摩擦耗能框架体系动力分析 |
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| 引用本文： | 周强,吕西林.摩擦耗能框架体系动力分析[J].地震工程与工程振动,2001,21(2):136-144. |
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| 作者姓名： | 周强 吕西林 |
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| 作者单位： | 同济大学结构工程与防灾研究所, |
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| 基金项目： | 国家杰出青年科学基金项目（50025821） |
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| 摘 要： | 采用粘性屈服模型来模拟摩擦耗能器的力－速度关系。建立了带有摩擦耗能器体系的动力分析8方法，采用增量型Rosenbrock二阶三阶半隐式Runge-Kutta法求解动力方程，得到了带有摩擦耗能器单层框架在正弦波激励下反应的解析解，并据此验证粘性屈服模型及求解动力方程算法的正确性，分析了摩擦耗能器的起滑力和支撑刚度对耗能减振效果的影响。
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| 关 键 词： | 摩擦耗能器 粘性屈服模型 半隐式Runge－Kutta法 动力分析 抗震结构 |
| 文章编号： | 1000-1301(2001)02-0136-09 |
Dynamic analysis of frame structures with friction energy dissipation devices |
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| ZHOU Qiang,LU Xi-lin.Dynamic analysis of frame structures with friction energy dissipation devices[J].Earthquake Engineering and Engineering Vibration,2001,21(2):136-144. |
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| Authors: | ZHOU Qiang LU Xi-lin |
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| Abstract: | It is very inconvenient when the discontinuous Coulomb friction model is used to simulate the friction force-velocity relationship in numerical analysis, so the continuous viscous yield model is used to solve the problem. Then the dynamic analysis method of energy dissipation system with the friction damper(FDs) is established, and an increment type Rosenbrock send-implicit Runge-Kutta method of order 3 with stage numebr 2 is adopted to solve the dynamic equations. Exact solution of a single-story braced frame with FDs under the sine wave excitation is obtained to verify the viscous yield model and the solution algorithm. The effects of some parameters. which are initial slip force of FDs and bracing stiffness, are also studied. |
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| Keywords: | friction damper viscous yield model semi-implicit Runge-Kutta method dynamic analysis |
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