基于纤维梁单元的RC框架结构动力弹塑性分析
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- 英文论文题名：Nonlinear Time History Analysis of RC Frame Structure Based on Fiber-beam Model
- 论文作者：毕登山 ; 惠云玲 ; 郭小华 ; 李忠煜 ; 赵晓青 ; 钱雨
- 英文论文作者：Bi Dengshan ; Hui Yunling ; Guo Xiaohua ; Li Zhongyu ; Zhao Xiaoqing ; Qian Yu ; National Test Center of Quality and Safety Supervision for Industrial Buildings and Structures
- 年：2016
- 作者机构：国家工业建构筑物质量安全监督检验中心;
- 论文关键词：振动台试验 ; 纤维梁单元 ; 弹塑性时程分析 ; 动力特征 ; 动力响应
- 英文论文关键词：shaking table test ; fiber beam model ; nonlinear time history analysis ; dynamic characteristics ; dynamic response
- 会议召开时间：2016-12-02
- 会议录名称：第十一届建筑物改造与病害处理学术研讨会暨第六届工程质量学术会议论文集
- 语种：中文
- 分类号：TU375.4;TU311.3
- 学会代码：SGJS
- 会议名称：第十一届建筑物改造与病害处理学术研讨会暨第六届工程质量学术会议
- 会议地点：中国海南海口
- 主办单位：中国老教授协会土木建筑专业委员会、中国土木工程学会工程质量分会、北京交通大学土木建筑工程学院
- 学会名称：施工技术编辑部
- 页数：4
- 文件大小：910k
- 原文格式：O
- 会议级别：全国
摘要
对某振动台试验RC框架结构缩尺模型的抗震性能展开研究。采用考虑材料塑性损伤累积的钢筋和混凝土材料单轴本构PQ-fiber模型。该方法具有建模简单,计算效率高,精细化的特点,在分析结构抗震性能时具有较强的优势。通过Abaqus用户子程序材料自定义(UMAT)功能基于纤维梁单元进行结构动力弹塑性时程分析。结合振动台试验缩尺模型的算例,对比分析结构动力特征和动力响应。合振动台试验缩尺模型的试验结果及多种软件动力分析结果表明,纤维梁单元能较好地反映结构质量和刚度分布。模型结构输入不同水平的地震动,弹塑性时程分析与试验结果较为接近,计算精度可以应用于工程分析中。
In this article,the seismic behavior of the shaking table experiment on RC frame structure scale model was researched.Steel and concrete uniaxial constitutive PQ-fiber model which have taken the accumulative plastic damage into consideration was adopted.Simpleness in model establishment,high efficiency and accuracy in calculation are the characteristics in this method.Those features possess strong advantages in analyzing the structure seismic behavior.Contrastive comparation of structural dynamic features and dynamic responses were done,combining the example of shaking table test on the scale model,The structural nonlinear time history analysis based on fiber beam model was done by using a user defined material subroutine(UMAT) in Abaqus.Combining the results from shaking table test on the scale model and dynamic analysis done by multiple software,fiber beam model reflect the structural quality and stiffness distribution.Inputting seismic oscillations of different levels,the nonlinear time history analysis is close to experimental result.Calculation accuracy can be applied in engineering analysis.
In this article,the seismic behavior of the shaking table experiment on RC frame structure scale model was researched.Steel and concrete uniaxial constitutive PQ-fiber model which have taken the accumulative plastic damage into consideration was adopted.Simpleness in model establishment,high efficiency and accuracy in calculation are the characteristics in this method.Those features possess strong advantages in analyzing the structure seismic behavior.Contrastive comparation of structural dynamic features and dynamic responses were done,combining the example of shaking table test on the scale model,The structural nonlinear time history analysis based on fiber beam model was done by using a user defined material subroutine(UMAT) in Abaqus.Combining the results from shaking table test on the scale model and dynamic analysis done by multiple software,fiber beam model reflect the structural quality and stiffness distribution.Inputting seismic oscillations of different levels,the nonlinear time history analysis is close to experimental result.Calculation accuracy can be applied in engineering analysis.
引文
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[8]SPACONEE,FILIPPOUF,TAUCERF.Fiber beam-column modeling for non-linear analysis of R/C frames[J].Journal of earthquake engineering and structural dynamics,1996(25):711-725.
[2]娄宇,温凌燕,徐小燕,等.基于大震弹塑性时程分析的结构抗震设计[J].建筑结构,2011(5):1-8.
[3]吕西林.钢筋混凝土结构非线性有限元理论与应用[M].上海:同济大学出版社,1997.
[4]乔帅.植筋加层钢筋混凝土框架抗震性能试验研究与数值分析[D].天津:天津大学,2014.
[5]LUBLINER J,OLIVER J,OLLER S,et al.A plastic-damage model for concrete[J].International journal of solids and structure,1989,25(3):299-326.
[6]江见鲸,陆新征.混凝土结构有限元分析[M].北京:清华大学出版社,2013.
[7]曲哲.摇摆墙—框架结构抗震损伤机制控制及设计方法研究[D].北京:清华大学,2010.
[8]SPACONEE,FILIPPOUF,TAUCERF.Fiber beam-column modeling for non-linear analysis of R/C frames[J].Journal of earthquake engineering and structural dynamics,1996(25):711-725.