不同新型墙材砌体的力学性能对比分析
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摘要
对空心粘土砖、加气混凝土砌块、陶粒混凝土砌块、混凝土空心砌块Ⅰ和混凝土空心砌块Ⅱ等5种常用新型墙材砌体的抗压性能和抗剪性能进行试验,并与烧结普通砖砌体进行对比.研究结果表明:砌块的抗压强度与砌块的制作工艺和质量和有关,空心砌块的强度还与肋板的分布、孔洞的大小和面板的厚度有关;砌体随着荷载的增大,裂缝增多、延伸,并扩展至砌体各面,最终失去承载能力被破坏;砌体的抗剪强度与砌块的表面光滑度和界面的咬合程度有直接关系.
An experimental investigation on the compressive and shear properties of masonries with five kinds of new blocks was carried out,including hollow clay bricks,aerated concrete blocks,ceramsite concrete blocks,concrete hollow block Ⅰ and concrete hollow block Ⅱ.The results show that compressive strength of blocks is related to production process and the quality;the strength of hollow blocks is related to the distribution of the ribs,the size of the pores,and the thickness of the panel;with increasing the load,the cracks of the masonries increase,and extend to each side of the masonries,finally the masonries is destroyed due to the loss of carrying capacity;the shear strength of masonries is related directly to the degree of surface smoothness of block and the occlusal degree of the interface.
An experimental investigation on the compressive and shear properties of masonries with five kinds of new blocks was carried out,including hollow clay bricks,aerated concrete blocks,ceramsite concrete blocks,concrete hollow block Ⅰ and concrete hollow block Ⅱ.The results show that compressive strength of blocks is related to production process and the quality;the strength of hollow blocks is related to the distribution of the ribs,the size of the pores,and the thickness of the panel;with increasing the load,the cracks of the masonries increase,and extend to each side of the masonries,finally the masonries is destroyed due to the loss of carrying capacity;the shear strength of masonries is related directly to the degree of surface smoothness of block and the occlusal degree of the interface.
引文
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[9]郭子雄,黄群贤,魏荣丰,等.填充墙不规则布置对RC框架抗震性能影响试验研究[J].土木工程学报,2010,43(11):46-54.
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[2]孙伟民,王辰宇,张怀金,等.节能型复合混凝土小型空心砌块砌体抗剪试验研究[J].混凝土与水泥制品,2004(5):48-49.
[3]李建成.混凝土空心砌块的孔型对其隔热性能的影响[J].混凝土与水泥制品,1995(5):50-52.
[4]李利群,王杏林,刘伟庆.新型混凝土小型空心砌块砌体的力学性能研究[J].新型墙体材料与施工,2003(2):36-38.
[5]程才渊,吴明舜,苏宇峰,等.伊通加气混凝土砌体抗压、弯曲抗拉、通缝抗剪的试验研究[J].四川建筑科学研究,2005,31(1):90-94.
[6]邵永健,殷志文,劳裕华,等.陶粒混凝土砌块的配合比设计与抗压强度试验[J].混凝土,2007(10):107-108.
[7]MARIA S R,HISSASHI K M,LEITE K E.Economic-energetic feasibility study of the utilization of hollow concreteblocks with rubble in low-cost housing in Brasilia[J].Rem-Revista Escola De Minas,2007,60(3):519-524.
[8]郭子雄,吴毅彬,黄群贤.砌体填充墙框架结构抗震性能研究现状与展望[J].地震工程与工程振动,2008,28(6):172-177.
[9]郭子雄,黄群贤,魏荣丰,等.填充墙不规则布置对RC框架抗震性能影响试验研究[J].土木工程学报,2010,43(11):46-54.
[10]朱雁茹.新型砌体填充墙RC框架结构抗震性能研究[D].泉州:华侨大学,2010.
[11]四川省建设委员会.GBJ129-90砌体基本力学性能试验方法标准[S].北京:中国建筑工业出版社,1990.
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