均布荷载作用下复合墙板的简化计算方法
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摘要
为了研究混凝土灌芯玻璃纤维增强石膏墙板(简称复合墙板)在水平均布荷载作用下的内力发展过程和受力体系的演变过程,根据复合墙板的组成特点,建立了简化计算模型。因框架与石膏墙板从开始受力、开裂、塑性变形到达极限承载力的过程,实质上是石膏板与混凝土框架的刚度不断衰减的过程;在这个过程中二者的变形是协调的,可以确定各阶段框架、石膏板的刚度,给出了复合墙板在水平均布荷载作用下的各种受力破坏途径、内力计算的简化公式及计算流程图。最后对理论计算与实验结果进行了对比分析,结果表明:提出的计算公式与实验结果吻合较好。
In order to study internal force development and force system evolution process of concrete-filled glass fiber reinforced gypsum wall panels(composite board for short) under horizontal distributed load,the simplified calculation model was set up on the basis of the feature of the composite wall panels.At first the frame and plasterboard wall started to bear the force and then cracked,which would have the plastic deformation,and could reach the ultimate bearing capacity.This was actually a process that stiffness of frame and plasterboard attenuated respectively.Their distortion was unisonous.The stiffness of the frame and plasterboard in different stage was defined.The route of distortion,internal force simplified calculation method and flow chart were also given.Finally,the theoretical and experimental results were also analyzed by comparison.All the calculated results proved that the calculation method coincided well with the experimental results.
In order to study internal force development and force system evolution process of concrete-filled glass fiber reinforced gypsum wall panels(composite board for short) under horizontal distributed load,the simplified calculation model was set up on the basis of the feature of the composite wall panels.At first the frame and plasterboard wall started to bear the force and then cracked,which would have the plastic deformation,and could reach the ultimate bearing capacity.This was actually a process that stiffness of frame and plasterboard attenuated respectively.Their distortion was unisonous.The stiffness of the frame and plasterboard in different stage was defined.The route of distortion,internal force simplified calculation method and flow chart were also given.Finally,the theoretical and experimental results were also analyzed by comparison.All the calculated results proved that the calculation method coincided well with the experimental results.
引文
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[16]包世华.新编高层建筑结构[M].北京:中国水利水电出版社,2001.
[17]谷岩,姜忻良.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[J].天津大学学报,2010,43(7):567-572.GU Yan,JIANG Xinliang.Finite element analysis of seismic behavior of composite w alls w ith different spacing core concrete and fiber-reinforced gypsum panel[J].Journal of Tianjin University,2010,43(7):567-572.
[18]姜忻良,张月楼,聂其林,等.混凝土灌芯纤维增强石膏板T形节点构件抗震性能研究[J].地震工程与工程振动,2004,24(5):149-153.JIANG Xinliang,ZHANG Yuelou,NIE Qilin,et al.Experimental research on the seismic performance of fiber reinforced plasterboard filled w ith reinforced concrete joints under low cyclic loading[J].Earthquake Engineering and Engineering Vibration,2004,24(5):149-153.
[19]谷岩,姜忻良,张海.纤维石膏速成板的力学性能试验研究[J].山东农业大学学报:自然科学版,2009,40(1):107-111.GU Yan,JIANG Xinliang,ZHANG Hai.Experimental research on mechanical properties of fiber-reinforced gypsum panel[J].Journal of Shandong Agricultural University:Natural Science,2009,40(1):107-111.
[20]马清珍,姜忻良,张宝魁.混凝土灌芯玻璃纤维增强石膏墙板的简化计算[J].天津大学学报,2010,43(12):1053-1059.MA Qingzhen,JIANG Xinliang,ZHANG Baokui.Simplified calculation for concrete-filled glass fiber reinforced gypsum w all panels[J].Journal of Tianjin University,2010,43(12):1053-1059.
[2]WU Yufei.The effect of longitudinal reinforcement on the cyclic shear behavior of glass fiber reinforced gypsum w all panels:Tests[J].Engineering Structures,2004,26(11):1633-1646.
[3]CHAHROUR A H,SOUDKIK A,JOHN S.RBS poly-mer encased concrete w all part I:experimental study and theoretical provisions for flexure and shear[J].Construc-tion and Building Materials,2005,19(7):550-563.
[4]姜忻良,刘康,谷岩,等.混凝土密排内框架———纤维石膏墙板低周往复实验研究[J].建筑结构学报,2004,25(4):50-54.JIANG Xinliang,LIU Kang,GU Yan,et al.Experimen-tal research on behavior of closely spaced concrete frames fiber reinforced plasterboard under low cyclic loading[J].Journal of Building Structures,2004,25(4):50-54.
[5]姜忻良,谷岩,董嘉岭,等.灌芯混凝土石膏墙板结构抗震性能试验研究[J].地震工程与工程震动,2006,26(3):165-167.JIANG Xinliang,GU Yan,DONG Jialing,et al.Re-search on seismic behaviors of reinforced plasterboard filled w ith concrete[J].Earthquake Engineering and Engi-neering Vibration,2006,26(3):165-167.
[6]姜忻良,张宇,许岩.混凝土石膏复合墙板试点工程动力特性测试与分析[J].建筑结构,2007,37(11):111-113.JIANG Xinliang,ZHANG Yu,XU Yan.Finite element analysis and dynamic characteristic test for typical struc-tural engineering of rapid w all system[J].Journal of Building Structures,2007,37(11):111-113.
[7]许岩.复合墙板结构试点工程动力测试及地震反应分析[D].天津:天津大学建筑工程学院,2005.XU Yan.Dynamic test and analysis of seismic response of an experimental building of composite w allboard struc-ture[D].Tianjin:School of Civil Engineering,Tianjin University,2005.
[8]ANTHOINE A.Derivation of the in-plane elastic charac-teristics of masonry through homogenization theory[J].International Journal of Solids and Structures,1995(32):137-163.
[9]MA Guowei,HAO Hong,LU Youg.Homogenization of masonry using numerical simulations[J].ASCE JournalEngineering Mechanics,2001,127(1):127-138.
[10]岳建伟,姜忻良.速成墙板的抗剪性能试验研究[J].华中科技大学学报:城市科学版,2006,23(1):27-30.YUE Jianw ei,JIANG Xinliang.Tests of shear perform-ance of rapid w alls[J].Journal of Huazhong University of Science and Technology:Urban Science Edition,2006,23(1):27-30.
[11]姜忻良,邓永胜.纤维石膏墙板中不同间距灌注混凝土芯柱抗震性能试验研[J].地震工程与工程振动,2004,24(4):110-114.JIANG Xinliang,DENG Yongsheng.Experimental stud-y on seismic behaviors of fiber plasterboards w ith con-crete core columns w ith filled different spacings[J].Earthquake Engineering and Engineering Vibration,2004,24(4):110-114.
[12]WU Yufei,DARE M P.Axial and shear behavior of glass fiber reinforced gypsum w all panels:Tests[J].Journal of Composites for Construction,2004,8(6):569-578.
[13]谢剑,赵彤.Excel在建筑工程中的应用[M].天津:天津大学出版社,2004.
[14]周坚.高层建筑结构力学[M].北京:机械工业出版社,2006.
[15]姜忻良,徐明霞.混凝土灌芯纤维石膏墙板的简化计算方法及内力分析[J].工程力学,2008,25(8):223-229.JIANG Xinliang,XU Mingxia.The internal force analy-sis and simplified calculation method for concrete frames-fiber plasterboard[J].Engineering Mechanics,2008,25(8):223-229.
[16]包世华.新编高层建筑结构[M].北京:中国水利水电出版社,2001.
[17]谷岩,姜忻良.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[J].天津大学学报,2010,43(7):567-572.GU Yan,JIANG Xinliang.Finite element analysis of seismic behavior of composite w alls w ith different spacing core concrete and fiber-reinforced gypsum panel[J].Journal of Tianjin University,2010,43(7):567-572.
[18]姜忻良,张月楼,聂其林,等.混凝土灌芯纤维增强石膏板T形节点构件抗震性能研究[J].地震工程与工程振动,2004,24(5):149-153.JIANG Xinliang,ZHANG Yuelou,NIE Qilin,et al.Experimental research on the seismic performance of fiber reinforced plasterboard filled w ith reinforced concrete joints under low cyclic loading[J].Earthquake Engineering and Engineering Vibration,2004,24(5):149-153.
[19]谷岩,姜忻良,张海.纤维石膏速成板的力学性能试验研究[J].山东农业大学学报:自然科学版,2009,40(1):107-111.GU Yan,JIANG Xinliang,ZHANG Hai.Experimental research on mechanical properties of fiber-reinforced gypsum panel[J].Journal of Shandong Agricultural University:Natural Science,2009,40(1):107-111.
[20]马清珍,姜忻良,张宝魁.混凝土灌芯玻璃纤维增强石膏墙板的简化计算[J].天津大学学报,2010,43(12):1053-1059.MA Qingzhen,JIANG Xinliang,ZHANG Baokui.Simplified calculation for concrete-filled glass fiber reinforced gypsum w all panels[J].Journal of Tianjin University,2010,43(12):1053-1059.
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