混凝土灌芯纤维石膏板的宏观计算模型
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摘要
为掌握混凝土灌芯纤维石膏板(速成墙板)的受力特性和分析速成墙板的试点工程,结合该墙板材料的具体特性,在已有的微观及宏观计算模型的基础上,基于纤维模型概念和铁木辛柯梁理论,建立了用于研究速成墙板等组合墙体的非线性分析的宏观纤维计算模型,即每个墙体单元由宏观纤维子单元和宏观剪切子单元组成,分别抵抗轴力和弯矩及剪力,推导了模型的单元刚度矩阵及建立了各杆件的本构模型。运用计算模型对4块满灌混凝土石膏板进行了推覆分析,并与试验结果进行了比较,结果表明该模型具有较好的精度,且计算简单,可用于复合结构的动力分析。
To master the mechanical property and to analyze pilot project of the fiber plasterboard filled with reinforced concrete(Rapid Wall),according to the material characteristic and the idea of micro-and macro-model,a macro-model basing on the idea of fiber model is put forward,which is applied to analyze nonlinear characteristic of composite wall.The macro-model is composed of macro fiber element that only resists axis force and moment of the composite wall,and macro shear element that only resists shear force of the composite wall.Stiffness matrix of the model and constitutive models of element stiffness are presented.The elasto-plastic push-over is carried out to the four fiber-plasterboard filled with reinforced concrete with the macro-model.The computational results are all close to those of experiments,which show that the macro model can be used to analyze the dynamic properties of composite material and has relatively high accuracy.
To master the mechanical property and to analyze pilot project of the fiber plasterboard filled with reinforced concrete(Rapid Wall),according to the material characteristic and the idea of micro-and macro-model,a macro-model basing on the idea of fiber model is put forward,which is applied to analyze nonlinear characteristic of composite wall.The macro-model is composed of macro fiber element that only resists axis force and moment of the composite wall,and macro shear element that only resists shear force of the composite wall.Stiffness matrix of the model and constitutive models of element stiffness are presented.The elasto-plastic push-over is carried out to the four fiber-plasterboard filled with reinforced concrete with the macro-model.The computational results are all close to those of experiments,which show that the macro model can be used to analyze the dynamic properties of composite material and has relatively high accuracy.
引文
[1]Jiang Xinliang,Deng Yongsheng,Liu Kang,et al.Experi-mental study on seismic behaviors of fiber plasterboardsfilled with concrete core columns with different spacings[J].Earthquake Engineering and Engineering Vibration,2004,24(4):110-114.[姜忻良,邓永胜,刘康,等.纤维石膏板中不同间距灌注混凝土芯柱抗震性能试验研究[J].地震工程与工程振动,2004,24(4):110-114.]
[2]Jiang Xinliang,Liu Kang,Gu Yan.Experimental research onbehavior of closely spaced concrete frames fiber reinforcedplasterboard under low cyclic loading[J].Journal of Build-ing Structures,2004,25(4):50-54.[姜忻良,刘康,谷岩.混凝土密排内框架-纤维石膏板低周往复试验研究[J].建筑结构学报,2004,25(4):50-54.]
[3]Wu Yufei.The effect of longitudinal reinforcement on the cy-clic shear behavior of glass fiber reinforced gypsum wallpanels:tests[J].Engineering Structures,2004,26(11):1633-1646.
[4]Chahrour A H,Soudki K A,John S.RBS polymer encasedconcrete wall part I:experimental study and theoretical pro-visions for flexure and shear[J].Construction and BuildingMaterials,2005,19(7):550-563.
[5]Fajfar P,Fischinger M.Mathematical modeling of reinforcedconcrete structural walls for nonlinear seismic analysis[J].Structural Dynamic,1990,21(1):471-478.
[6]Milev J L.Two dimensional analytical model of reinforcedconcrete shear walls[C]//Proceedings of 11th WCEE,Elsevier Science LTD,1996.
[7]Hiraishi H,Kawashima T.Deformation behavior of shearwalls after flexural yielding[C]//Proceedings of 9thWCEE,Tokyo,1990,8:653-634.
[8]Kabeyasawa,Shioara T H.US-Japan cooperative research onR/C full-scale building test-part 5:discussion on dynamicresponse system[C]//Proceedings of 8th WCEE,1984,6:627-634.
[9]Sun Jingjiang,Jiang Jinren.Extended timoshenko layeredbeam element for nonlinear analysis of RC high-rise build-ings with structural walls[J].Earthquake Engineering andEngineering Vibration,2001,21(2):78-83.[孙景江,江近仁.高层建筑抗震墙非线性分析的扩展铁木辛哥分层梁单元[J].地震工程与工程振动,2001,21(2):78-83.]
[10]Wu Yongfei,Zhou Deyuan.Application of fiber model instatic nonlinear analysis for planar frame[J].Journal ofSoutheast University:Natural Science Edition,2005,35(7):129-132.[伍永飞,周德源.纤维模型在平面框架非线性静力分析中的应用[J].东南大学学报:自然科学版,2005,35(7):129-132.]
[11]Huang Zongming,Chen Tao.Comparison between flexibil-ity-based and stiffness-based nonlinear beam-column ele-ments[J].Engineering Mechanics,2003,20(5):24-32.[黄宗明,陈滔.基于有限单元柔度法和刚度法的非线性梁柱单元比较研究[J].工程力学,2003,20(5):24-32.]
[12]Jiang Huanjun,Lu Xilin.Research on application of macro-scopic shear wall mode[J].Earthquake Engineering and En-gineering Vibration,2003,23(1):38-43.[蒋欢军,吕西林.一种宏观剪力墙单元模型应用研究[J].地震工程与工程振动,2003,23(1):38-43.]
[13]Wang Mengfu,Zhou Xiyuan.The improved parallel multi-component model for the nonlinear seismic response analysisof RC walls and its application[J].Journal of BuildingStructures,2002,23(1):38-42.[汪梦甫,周锡元.钢筋混凝土剪力墙多垂直杆非线性单元模型的改进及其应用[J].建筑结构学报,2002,23(1):38-42.]
[14]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:37-39.
[15]混凝土结构设计规范(GB 50010-2002)[S].北京:中国建筑工业出版社,2002.
[2]Jiang Xinliang,Liu Kang,Gu Yan.Experimental research onbehavior of closely spaced concrete frames fiber reinforcedplasterboard under low cyclic loading[J].Journal of Build-ing Structures,2004,25(4):50-54.[姜忻良,刘康,谷岩.混凝土密排内框架-纤维石膏板低周往复试验研究[J].建筑结构学报,2004,25(4):50-54.]
[3]Wu Yufei.The effect of longitudinal reinforcement on the cy-clic shear behavior of glass fiber reinforced gypsum wallpanels:tests[J].Engineering Structures,2004,26(11):1633-1646.
[4]Chahrour A H,Soudki K A,John S.RBS polymer encasedconcrete wall part I:experimental study and theoretical pro-visions for flexure and shear[J].Construction and BuildingMaterials,2005,19(7):550-563.
[5]Fajfar P,Fischinger M.Mathematical modeling of reinforcedconcrete structural walls for nonlinear seismic analysis[J].Structural Dynamic,1990,21(1):471-478.
[6]Milev J L.Two dimensional analytical model of reinforcedconcrete shear walls[C]//Proceedings of 11th WCEE,Elsevier Science LTD,1996.
[7]Hiraishi H,Kawashima T.Deformation behavior of shearwalls after flexural yielding[C]//Proceedings of 9thWCEE,Tokyo,1990,8:653-634.
[8]Kabeyasawa,Shioara T H.US-Japan cooperative research onR/C full-scale building test-part 5:discussion on dynamicresponse system[C]//Proceedings of 8th WCEE,1984,6:627-634.
[9]Sun Jingjiang,Jiang Jinren.Extended timoshenko layeredbeam element for nonlinear analysis of RC high-rise build-ings with structural walls[J].Earthquake Engineering andEngineering Vibration,2001,21(2):78-83.[孙景江,江近仁.高层建筑抗震墙非线性分析的扩展铁木辛哥分层梁单元[J].地震工程与工程振动,2001,21(2):78-83.]
[10]Wu Yongfei,Zhou Deyuan.Application of fiber model instatic nonlinear analysis for planar frame[J].Journal ofSoutheast University:Natural Science Edition,2005,35(7):129-132.[伍永飞,周德源.纤维模型在平面框架非线性静力分析中的应用[J].东南大学学报:自然科学版,2005,35(7):129-132.]
[11]Huang Zongming,Chen Tao.Comparison between flexibil-ity-based and stiffness-based nonlinear beam-column ele-ments[J].Engineering Mechanics,2003,20(5):24-32.[黄宗明,陈滔.基于有限单元柔度法和刚度法的非线性梁柱单元比较研究[J].工程力学,2003,20(5):24-32.]
[12]Jiang Huanjun,Lu Xilin.Research on application of macro-scopic shear wall mode[J].Earthquake Engineering and En-gineering Vibration,2003,23(1):38-43.[蒋欢军,吕西林.一种宏观剪力墙单元模型应用研究[J].地震工程与工程振动,2003,23(1):38-43.]
[13]Wang Mengfu,Zhou Xiyuan.The improved parallel multi-component model for the nonlinear seismic response analysisof RC walls and its application[J].Journal of BuildingStructures,2002,23(1):38-42.[汪梦甫,周锡元.钢筋混凝土剪力墙多垂直杆非线性单元模型的改进及其应用[J].建筑结构学报,2002,23(1):38-42.]
[14]过镇海,时旭东.钢筋混凝土原理和分析[M].北京:清华大学出版社,2003:37-39.
[15]混凝土结构设计规范(GB 50010-2002)[S].北京:中国建筑工业出版社,2002.
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