| 基于改进Bouc-Wen模型防屈曲支撑的参数识别 |
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| 引用本文： | 李建勤, 高向宇, 刘超, 李杨龙. 基于改进Bouc-Wen模型防屈曲支撑的参数识别[J]. 北京工业大学学报, 2016, 42(2): 245-252. DOI: 10.11936/bjutxb2015060051 |
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| 作者姓名： | 李建勤 高向宇 刘超 李杨龙 |
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| 作者单位： | 1.北京工业大学工程抗震与结构诊治北京市重点实验室, 北京 100124 |
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| 基金项目： | 国家自然科学基金资助项目(51378038) |
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| 摘 要： | 为了对“改进Bouc-Wen模型”进行深入研究,提出了该模型的参数拟合方法,并实现了二次开发程序.对30根防屈曲支撑试验的滞回曲线数据进行了参数回归与分析,给出模型参数的变化趋势、波动范围、统计平均值.为了给改进Bouc-Wen模型的应用提供参考,给出了参数取值的建议.应用Abaqus软件中的材料用户子程序(UMAT)的二次开发接口,使“改进Bouc-Wen模型”得以在有限元软件中应用.
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| 关 键 词： | 防屈曲支撑 参数识别 恢复力模型 Bouc-Wen模型 UMAT |
| 收稿时间： | 2015-06-18 |
Parametric Identification of BRB Based on the Improved Bouc-Wen Model |
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| LI Jianqin, GAO Xiangyu, LIU Chao, LI Yanglong. Parametric Identification of BRB Based on the Improved Bouc-Wen Model[J]. Journal of Beijing University of Technology, 2016, 42(2): 245-252. DOI: 10.11936/bjutxb2015060051 |
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| Authors: | LI Jianqin GAO Xiangyu LIU Chao LI Yanglong |
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| Affiliation: | 1.Beijing Priority Laboratory of Earthquake Engineering and Structural Retrofit, Beijing University of Technology, Beijing 100124, China |
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| Abstract: | For further research on the improved Bouc-Wen model,a method of parametric identification was presented and the secondary development program was developed in this paper.And then the method was applied to the practices of 30 BRBs' experimental data.The changed trend,range and the average values of parameters of the improved Bouc-Wen model was presented for providing reference for applying improved Bouc-Wen model,and the value of the model parameters was suggested for application reference.Base on the finite element software ABAQUS,the improved Bouc-Wen model can be applied according to the UMAT. |
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| Keywords: | buckling-restrained brace (BRB) parametric identification hysteretic force model Bouc-Wen model UMAT |
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