| 钢筋混凝土建筑非线性阻尼性能及阻尼比表达式研究 |
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| 引用本文： | 樊海涛,何益斌,肖宏彬.钢筋混凝土建筑非线性阻尼性能及阻尼比表达式研究[J].地震工程与工程振动,2005,25(5):85-90. |
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| 作者姓名： | 樊海涛 何益斌 肖宏彬 |
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| 作者单位： | [1]湖南大学土木工程学院,湖南长沙410082 [2]株州工学院土木工程系,湖南株州412008 |
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| 基金项目： | 高等学校博士点基金项目（20020532002） |
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| 摘 要： | 阻尼比是反映结构耗能能力的参数，它对结构的振动反应有重要的影响。目前结构设计阶段通常取阻尼比为常数，这不能真实反映建筑物的阻尼机理，与阻尼比的实测结果也有很大的差距。通过对建筑物阻尼机理、建筑材料、建筑物和建筑模型阻尼性能试验数据的分析，本文对混凝土强度、纵向配筋率、结构形式和结构变形大小等建筑阻尼性能的主要影响因素进行了分析。在此基础上，本文提出了钢筋混凝土结构非线性阻尼比的统一表达式。
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| 关 键 词： | 建筑物 阻尼机理 阻尼比 |
| 文章编号： | 1000-1301（2005）05-0085-06 |
| 收稿时间： | 2005-02-10 |
| 修稿时间： | 2005-02-102005-04-15 |
Study on non-linear damping performance and damping ratio formula of reinforced concrete buildings |
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| Fan haitao, He Yibin, Xiao Hongbin.Study on non-linear damping performance and damping ratio formula of reinforced concrete buildings[J].Earthquake Engineering and Engineering Vibration,2005,25(5):85-90. |
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| Authors: | Fan haitao He Yibin Xiao Hongbin |
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| Institution: | 1. Givil Engineering College, Hunan University, Changsha 410082, China; 2. Department of Civil Engineering Zhuzhou Institute of Technology, Zhuzhou 412008, China |
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| Abstract: | Damping ratio, as a parameter that reflects capacity of dissipating energy of building and has significant influence on the dynamic responses, is regarded as a constant when designing buildings at present. It is not consistent with damping mechanism and full-scale data of damping ratio of buildings. Based on the analysis of damping mechanism , damping ratio data of building materials, buildings and building models, it is concluded that the main factors of damping performance of building are strength of concrete, percentages of longitudinal steel, structure configuration and deformation amplitude. Finally, damping ratio formula of buildings is proposed. |
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| Keywords: | buildings damping mechanism damping ratio |
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