不同间距设置芯柱-纤维石膏速成板组合墙体抗震性能有限元分析
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摘要
在对不同间距设置芯柱-纤维石膏速成板组合墙体试验研究的基础上,利用ADINA有限元软件建立不同间距灌芯形式组合墙体的三维有限元模型,结合试验结果验证有限元计算模型的合理性,分析组合墙体的变形破坏特征和抗震性能.通过对组合墙体的数值模拟计算,讨论混凝土灌芯情况和墙体高宽比对组合墙体承载力的影响,结果表明:增加钢筋混凝土芯柱的数目可以有效加强组合墙体的抗侧承载力,组合墙体的破坏模式由弯剪破坏向剪切破坏转变;随着高宽比的增大,组合墙体的开裂荷载和极限承载力降低.
Based on the experimental studies of composite-wall-specimens made of fiber-reinforced gypsum panel with different spacing core concrete,3-dimensional finite element models of composite walls with different spacing core concrete were established with ADINA finite element software,the validity of which was verified by experimental results.And the failure features and seismic behavior of such walls were analyzed.Numerical simulation was performed to discuss the effects of concrete core formation and the depth-to-width ratio on the load-carrying capacity of the composite walls.Results indicate that the load-carrying capacity of the composite walls can be greatly enhanced with increase of the number of core columns which also leads to the transition from bend-shear failure mode to shear failure mode.The cracking load and the ultimate bearing resistance decrease with the rise of ratio of depth-to-width.
Based on the experimental studies of composite-wall-specimens made of fiber-reinforced gypsum panel with different spacing core concrete,3-dimensional finite element models of composite walls with different spacing core concrete were established with ADINA finite element software,the validity of which was verified by experimental results.And the failure features and seismic behavior of such walls were analyzed.Numerical simulation was performed to discuss the effects of concrete core formation and the depth-to-width ratio on the load-carrying capacity of the composite walls.Results indicate that the load-carrying capacity of the composite walls can be greatly enhanced with increase of the number of core columns which also leads to the transition from bend-shear failure mode to shear failure mode.The cracking load and the ultimate bearing resistance decrease with the rise of ratio of depth-to-width.
引文
[1]中国建筑科学研究院.JCJ 101—96建筑抗震试验方法规程[S].北京:中国建筑工业出版社,1997.China Academy of Building Research.JCJ 101-96 Speci-fication of Testing Methods for Earthquake Resistant Building[S].Beijing:China Architectural Industry Press,1997(in Chinese).
[2]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.Zhu Bolong.Seismic Test for Structures[M].Beijing:Seismological Press,1989(in Chinese).
[3]刘莉,李宏男,张景玮.保温夹心节能墙体抗震性能分析[J].地震工程与工程振动,2002,22(1):79-84.Liu Li,Li Hongnan,Zhang Jingwei.Analysis on aseismic behavior of insulation cavity energy-saving walls[J].Earthquake Engineering and Engineering Vibration,2002,22(1):79-84(in Chinese).
[4]庞同和,刘金圣,蓝宗建,等.混凝土小型空心砌块墙抗震性能的试验研究[J].东南大学学报,1997,27(增):51-57.Pang Tonghe,Liu Jinsheng,Lan Zongjian,et al.Experi-mental research on behavior of small-sized concrete hol-low block wall[J].Journal of Southeast University,1997,27(Suppl):51-57(in Chinese).
[5]ADINA.Theory and Modeling Guide[Z].ADINA R&Dinc,2005.
[6]江见鲸,陆新征,叶列平.混凝土结构有限元分析[M].北京:清华大学出版社,2006.Jiang Jianjing,Lu Xinzheng,Ye Lieping.Finite Element Analysis of Concrete Structures[M].Beijing:Tsinghua University Press,2006(in Chinese).
[7]沈荣熹,崔琪,李清海.新型纤维增强水泥基复合材料[M].北京:中国建材工业出版社,2004.Shen Rongxi,Cui Qi,Li Qinghai.New Type Fiber Rein-forced Cement-Based Composites[M].Beijing:China Building Materials Press,2004(in Chinese).
[8]Wu Yufei,Dare M P.Axial and shear behavior of glass fiber reinforced gypsum wall panels:Tests[J].Journal of Composites for Construction,2004,8(6):569-578.
[2]朱伯龙.结构抗震试验[M].北京:地震出版社,1989.Zhu Bolong.Seismic Test for Structures[M].Beijing:Seismological Press,1989(in Chinese).
[3]刘莉,李宏男,张景玮.保温夹心节能墙体抗震性能分析[J].地震工程与工程振动,2002,22(1):79-84.Liu Li,Li Hongnan,Zhang Jingwei.Analysis on aseismic behavior of insulation cavity energy-saving walls[J].Earthquake Engineering and Engineering Vibration,2002,22(1):79-84(in Chinese).
[4]庞同和,刘金圣,蓝宗建,等.混凝土小型空心砌块墙抗震性能的试验研究[J].东南大学学报,1997,27(增):51-57.Pang Tonghe,Liu Jinsheng,Lan Zongjian,et al.Experi-mental research on behavior of small-sized concrete hol-low block wall[J].Journal of Southeast University,1997,27(Suppl):51-57(in Chinese).
[5]ADINA.Theory and Modeling Guide[Z].ADINA R&Dinc,2005.
[6]江见鲸,陆新征,叶列平.混凝土结构有限元分析[M].北京:清华大学出版社,2006.Jiang Jianjing,Lu Xinzheng,Ye Lieping.Finite Element Analysis of Concrete Structures[M].Beijing:Tsinghua University Press,2006(in Chinese).
[7]沈荣熹,崔琪,李清海.新型纤维增强水泥基复合材料[M].北京:中国建材工业出版社,2004.Shen Rongxi,Cui Qi,Li Qinghai.New Type Fiber Rein-forced Cement-Based Composites[M].Beijing:China Building Materials Press,2004(in Chinese).
[8]Wu Yufei,Dare M P.Axial and shear behavior of glass fiber reinforced gypsum wall panels:Tests[J].Journal of Composites for Construction,2004,8(6):569-578.
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