免蒸免烧粉煤灰多孔砖墙体抗震性能试验研究
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摘要
免蒸压免烧结粉煤灰多孔砖是一种新型承重墙体材料。本文通过三片墙体低周反复荷载试验,系统研究了粉煤灰多孔砖墙体的力学性能和抗震性能,包括墙体的破坏特征、滞回曲线、刚度、延性、骨架曲线及受剪承载力等。试验结果表明,免蒸压免烧结粉煤灰多孔砖墙体的破坏形态与普通黏土砖墙体相似,主要呈剪切破坏;墙体具有较高的受剪承载力、延性和耗能能力,适宜在地震区村镇建筑中推广应用。
Non-autoclaved and non-sintered fly-ash perforated brick is a kind of new material for load-bearing walls.In order to testify the seismic performance of fly-ash perforated brick wall,the low cyclic load test of three fly-ash perforated brick walls were conducted.The mechanic and seismic performance of fly-ash perforated brick walls including damage characteristics,hysteresis curve,stiffness,ductility,skeleton curve and sherar strength of the walls were studied systematically.The experiment results show that the failure of fly-ash perforated brick wall is similar to sintered clay brick wall,and the featuring failure is mostly the shear failure.The fly-ash perforated brick wall has high shear strength,good ductility and energy dissipation capacity and will be appropriate to village and town buildings of seismic zone.
Non-autoclaved and non-sintered fly-ash perforated brick is a kind of new material for load-bearing walls.In order to testify the seismic performance of fly-ash perforated brick wall,the low cyclic load test of three fly-ash perforated brick walls were conducted.The mechanic and seismic performance of fly-ash perforated brick walls including damage characteristics,hysteresis curve,stiffness,ductility,skeleton curve and sherar strength of the walls were studied systematically.The experiment results show that the failure of fly-ash perforated brick wall is similar to sintered clay brick wall,and the featuring failure is mostly the shear failure.The fly-ash perforated brick wall has high shear strength,good ductility and energy dissipation capacity and will be appropriate to village and town buildings of seismic zone.
引文
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[3]顾祥林,陈贡联,马俊元,等.反复荷载作用下混凝土多孔砖墙体受力性能试验研究[J].建筑结构学报,2010,31(12):123～131.GU Xianglin,CHEN Gonglian,MA Junyuan,et al.Experimental study on mechanical behavior of concrete perforated brick walls under cyclic load-ing[J].Journal of Building Structures,2010,31(12):123-131.(in Chinese)
[4]熊立红,张敏政,杜修力.约束混凝土砌块结构抗震性态研究[J].地震工程与工程振动,2007,27(2):51-57.XIONG Lihong,ZHANG Minzheng,DU Xiuli.Seismic performance of confined concrete block structures[J].Journal of Earthquake Engineeringand Engineering Vibration,2007,27(2):51-57.(in Chinese)
[5]肖建庄,王长青,朱彬荣,等.再生混凝土砌块砌体房屋结构振动台模型试验研究[J].四川大学学报:工程科学版,2010,42(5):120-126.XIAO Jianzhuang,WANG Changqing,ZHU Binrong,et al.Shake table test on recycled concrete block masonry buildings[J].Journal of SichuanUniversity:Engineering Science Edition,2010,42(5):120-126.(in Chinese)
[6]Ishtiyaq G.Testing of strength of recycled waste concrete and its applicability[J].Journal of Materials in Civil Engineering,2011,137(1):1-5.
[7]王正刚,薛国亚,高本立,等.约束页岩砖砌体墙抗震性能试验研究[J].东南大学学报:自然科学版,2003,33(5):638-642.WANG Zhenggang,XUE Guoya,GAO Benli,et al.Experimental research on the seismic behaviorof confined shale brick masonry walls[J].Journalof Southeast University:Natural Science Edition,2003,33(5):638-642.(in Chinese)
[8]方亮,梁建国.蒸压粉煤灰砖墙片抗震性能研究[J].湖南农业大学学报:自然科学版,2008,34(2):240-244.FANG Liang,LIANG Jianguo.An experimental study on seismic performance of autoclaved fly ash wall bricks[J].Journal of Hunan AgriculturalUniversity:Natural Sciences,2008,34(2):240-244.(in Chinese)
[9]杨春霞,施楚贤,杨伟军,等.混凝土多孔砖砌体模型房屋抗震性能试验研究[J].建筑结构学报,2006,27(3):84-92.YANG Chunxia,SHI Chuxian,YANG Weijun,et al.Experimental investigation on pseudo-dynamic test of concrete perforated brick masonry build-ing model[J].Journal of Building Structures,2006,27(3):84-92.(in Chinese)
[10]赵成文,代俊杰,高连玉,等.工业废渣混凝土多孔砖砌体抗震性能试验研究[J].沈阳建筑大学学报:自然科学版,2008,24(4):553-556.ZHAO Chengwen,DAI Junjie,GAO Lianyu,et al.Experimental study on the seismic behavior of concrete perforated brick with industrial wastedmaterials masonry walls[J].Journal of Shenyang Jianzhu University:Natural Science,2008,24(4):553-556.(in Chinese)
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