砌块弹性模量对密肋复合墙板抗侧刚度的影响分析
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摘要
密肋复合墙结构是集承重、围护、节能、抗震于一体的新型建筑结构。它由隐形框架、密肋复合墙板、楼板装配整浇而成,具有多道抗震防线并可分阶段释放地震能量。鉴于结构地震反应的强弱与墙体抗侧刚度的大小密切相关,在试验研究基础上,利用大型通用有限元软件ANSYS建立了密肋复合墙体的非线性有限元分析模型,对填充不同弹性模量砌块墙体在水平荷载和竖向荷载共同作用下的抗侧刚度进行了分析,并与试验结果对比表明:填充材料的弹性模量对墙体抗侧刚度影响较大,基本呈现线性相关关系。建立的复合墙体非线性有限元模型具有较好的实用价值,可为密肋复合墙结构设计提供参考。
The multi-ribbed composite wall is a new building structure which possesses the characteristics of the load-bearing,enclosure,energy saving and anti-seism.It is monolithically cast of the invisible frame、prefabricated multi-ribbed composite wall and the floor,which has multi-line to act against earthquake and can release earthquake energy by stages.In view of the fact that the act against earthquake response is closely related to the wall lateral stiffness,it is established the nonlinear finite element model of the multi-ribbed composite wall with ANSYS based on the experiment study.Under interaction of the horizontal load and the vertical load,different FEA models are built with different materials,almost a linear correlation between filled block elastic modulus and the wall's lateral stiffness,comparing the analysis result with the experiment one shows,that the model has certain practical value,which can provide reference calculations for the structure design.
The multi-ribbed composite wall is a new building structure which possesses the characteristics of the load-bearing,enclosure,energy saving and anti-seism.It is monolithically cast of the invisible frame、prefabricated multi-ribbed composite wall and the floor,which has multi-line to act against earthquake and can release earthquake energy by stages.In view of the fact that the act against earthquake response is closely related to the wall lateral stiffness,it is established the nonlinear finite element model of the multi-ribbed composite wall with ANSYS based on the experiment study.Under interaction of the horizontal load and the vertical load,different FEA models are built with different materials,almost a linear correlation between filled block elastic modulus and the wall's lateral stiffness,comparing the analysis result with the experiment one shows,that the model has certain practical value,which can provide reference calculations for the structure design.
引文
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[2]郭猛,姚谦峰.框架-密肋复合墙结构新体系研究[J].地震工程与工程振动,2009,29(5):73-78.
[3]孟海,姚谦峰,黄炜.密肋复合墙体弹性刚度试验及计算分析[J].建筑科学与工程学报,2006,23(3):14-20.
[4]颜雪洲.轻质高性能混凝土力学性能试验研究及新型复合墙体性能分析[D].北京:北京交通大学,2006.
[5]江见鲸.混凝土结构有限元分析[M].北京.清华大学出版社,2004.
[6]徐健.密肋耗能复合墙体弹性抗侧刚度及其影响因素分析[D].北京:北京交通大学,2009.
[7]黄炜.密肋复合墙体抗震性能及设计理论研究[D].西安:西安建筑科技大学,2004.
[8]唐强.秸秆泥坯生态复合墙体抗震性能及抗震设计方法研究[D].西安:西安建筑科技大学,2009.
[9]Saneinejad A,Hobbs B.Inelastic Design of Infilled Frames[J].J.Struct.Eng,1995,121(4):634-650.
[10]王新敏.ANSYS工程结构数值分析[M].北京:人民交通出版社,2007.
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