| 框架-阻尼框筒结构附加阻尼比简化计算方法 |
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| 引用本文： | 徐自然.框架-阻尼框筒结构附加阻尼比简化计算方法[J].世界地震工程,2020,0(3):012-18. |
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| 作者姓名： | 徐自然 |
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| 作者单位： | 华东建筑设计研究院有限公司,上海200041;同济大学 建筑工程系,上海200092 |
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| 基金项目： | 国家重点研发计划专项项目资助 |
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| 摘 要： | 针对框架-阻尼框筒新型减震结构体系，考虑钢板阻尼墙屈服后强化和框架弹塑性，推导了结构附加阻尼比简化计算公式。以某框架-阻尼框筒结构为例，采用试验和有限元分析方法确定公式的参数取值，以此得到结构附加阻尼比的公式计算值，通过与结构动力弹塑性分析值进行对比，论证了简化计算公式的可用性。进一步基于参数分析给出了不同因素对公式计算值的影响。该简化计算方法为框架-阻尼框筒结构方案的快速设计提供了有效途径。
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| 关 键 词： | 框架-阻尼框筒结构 钢板阻尼墙 附加阻尼比 简化计算方法 弹塑性 |
Simplified calculation method of additional damping ratio of frame damping-framed-tube structure |
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| XU Ziran,' target="_blank" rel="external">.Simplified calculation method of additional damping ratio of frame damping-framed-tube structure[J].World Information On Earthquake Engineering,2020,0(3):012-18. |
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| Authors: | XU Ziran " target="_blank">' target="_blank" rel="external"> |
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| Institution: | 1. East China Architectural Design & Research Institute Co., Ltd., Shanghai 200041, China;2. Department of Building Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | A simplified formula for calculating the additional damping ratio of a new type of frame damping-framed tube structure (FDFTS) is derived, taking into account the yielding of the steel plate damping wall and the elastoplasticity of the frame. Taking one FDFTS as an example, the parameter values of the formula are determined by both test and finite element analysis, so as to obtain the additional damping ratio of the structure. Compared with results from the dynamic elastoplastic analysis the computed values from the simplified calculation formula is validated. Furthermore, based on the parametric study, the influence of different factors on the calculated value of the formula is performed. The proposed simplified calculation method provides an effective way for the rapid design of FDFTS. |
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| Keywords: | frame damping-framed-tube structure steel plate damping wall additional damping ratio simplified calculation method elastoplastic |
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