再生混凝土砖砌体抗压性能试验研究
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摘要
再生混凝土砖是利用废弃混凝土作为骨料制作的一种砖,作为再生混凝土砖砌体抗震性能研究的基础,文中进行了18个不同砂浆强度的再生混凝土砖砌体的抗压性能试验。测试分析了各试件的承载力、变形和破坏过程,得到了再生混凝土砖砌体的抗压强度、弹性模量和泊松比。研究表明:再生混凝土砖砌体与普通黏土砖砌体相比,承载力略低,抗压强度退化略快,弹性模量和泊松比接近;随着砌筑砂浆强度的提高,再生混凝土砖砌体的承载力和变形能力提高,弹性模量增大。再生混凝土砖砌体可用于多层砌体房屋结构抗震设计。
Recycled concrete brick is made of discarded concrete.As a basic study for the aseismic behavior of recycled concrete brick,the compression properties of 18 recycled concrete brick masonry specimens in different levels of mortar strength were tested.The load-bearing capacity,deformation and the failure process of each specimen were tested and analyzed.Then,the compression strength,elastic modulus and Poisson's ratio of recycled concrete brick were calculated.The research shows that,compared with common bricks,the recycled concrete brick has a lower load-bearing capacity and a faster decline in pressive strength,and the elastic modulus and Poisson's ratio are nearly the same.With the increased strength of masonry mortar,the pressive strength and deformability increase and the elastic modulus augments.The recycled concrete brick can be used in the seismic design of multi-layer masonry buildings.
Recycled concrete brick is made of discarded concrete.As a basic study for the aseismic behavior of recycled concrete brick,the compression properties of 18 recycled concrete brick masonry specimens in different levels of mortar strength were tested.The load-bearing capacity,deformation and the failure process of each specimen were tested and analyzed.Then,the compression strength,elastic modulus and Poisson's ratio of recycled concrete brick were calculated.The research shows that,compared with common bricks,the recycled concrete brick has a lower load-bearing capacity and a faster decline in pressive strength,and the elastic modulus and Poisson's ratio are nearly the same.With the increased strength of masonry mortar,the pressive strength and deformability increase and the elastic modulus augments.The recycled concrete brick can be used in the seismic design of multi-layer masonry buildings.
引文
[1]肖建庄,黄江德,李宏,等.灾后重建再生砌块砌体结构性能和设计研究[J].四川大学学报(工程科学版),2009,41(3):202-208.XIAO Jianzhuang,HUANG Jiangde,LI Hong,et al.Structural performance and design investigation on recycled concrete block masonry duringpost-earthquake reconstruction[J].Journal of Sichuan university(Engineering Science Edition),2009,41(3):202-208.
[2]刘立新,胡新安,谢丽丽,等.再生混凝土多孔砖砌体抗压强度试验研究[J].郑州大学学报(工学版),2007,28(3):9-11.LIU Lixin,HU Xinan,XIE Lili,et al.Experimental study of the compressive strength of recycled aggregates concrete perorated bricks masonry[J].Journal of Zhengzhou University(Engineering Science),2007,28(3):9-11.
[3]丁帅,孙伟民,郭樟根,等.再生混凝土小型空心砌块砌体基本力学性能研究[J].新型建筑材料,2010,38(2):38-40.DING Shuai,SUN Weimin,GUO Zhanggen,et al.Study on the fundamental mechanical behavior of recycled concrete small hollow block masonry[J].New Building Materials,2010,38(2):38-40.
[4]肖建庄,王幸,胡永忠,等.再生混凝土空心砌块砌体受压性能[J].结构工程师,2006,22(3):68-71.XIAO Jianzhuang,Wang Xing,Hu Yongzhong,et al.Compressive performance of concrete hollow block masonry with recycled aggregates[J].Structural Engineers,2006,22(3):68-71.
[5]严捍东,陈秀峰.废弃黏土砖再生骨料对混凝土性能的影响研究[J].四川建筑科学研究,2010,35(5):179-182.YAN Handong,CHEN Xiufeng.Study on effects of waste clay brick recycled aggregate on concrete properties[J].Sichuan Building Science,2010,35(5):179-182.
[6]曹万林,徐泰光,刘强,等.再生混凝土高剪力墙抗震性能试验研究[J].世界地震工程,2009,25(2):18-23.CAO Wanlin,XU Taiguang,LIU Qiang,et al.Experimental study on seismic performance of high-rise recycled aggregate concrete shear wall[J].World Earthquake Engineering,2009,25(2):18-23.
[7]GBJ 129-90砌体基本力学性能试验方法标准[S].GBJ 129-90 Test Method and Standard on Basic Mechanical Property of Masonry[S].
[8]夏敬谦,陈懋恭,连志勤,等.砖结构基本力学性能的试验研究[J].地震工程与工程振动,1983,3(1):43-56.XIA Jingqian,CHEN Maogong,LIAN Zhiqin et al.Experimental study on basic mechanical properties of brick buildings[J].Earthquake Engi-neering and Engineering Vibration,1983,3(1):43-56.
[9]GB 50003-2001砌体结构设计规范[S].GB 50003-2001 Code for Design of Masonry Structure[S].
[10]郝彤,刘立新,巩耀娜,等.混凝土多孔砖砌体受压应力-应变全曲线试验研究[J].建筑结构,2008,38(10):73-74.HAO Tong,LIU Lixin,GONG Yaona,et al.Experimental research on the total stress-strain curve of concrete porous brick masonry[J].2008,38(10):73-74.
[11]周理安.建筑垃圾再生砖制备技术及其性能研究[D].北京建筑工程学院硕士学位论文,2010.ZHOU Lian.Study on productive technology and performance of construction waste recycled brick[D].Beijing Institute of architectural engineer-ing,2010.
[2]刘立新,胡新安,谢丽丽,等.再生混凝土多孔砖砌体抗压强度试验研究[J].郑州大学学报(工学版),2007,28(3):9-11.LIU Lixin,HU Xinan,XIE Lili,et al.Experimental study of the compressive strength of recycled aggregates concrete perorated bricks masonry[J].Journal of Zhengzhou University(Engineering Science),2007,28(3):9-11.
[3]丁帅,孙伟民,郭樟根,等.再生混凝土小型空心砌块砌体基本力学性能研究[J].新型建筑材料,2010,38(2):38-40.DING Shuai,SUN Weimin,GUO Zhanggen,et al.Study on the fundamental mechanical behavior of recycled concrete small hollow block masonry[J].New Building Materials,2010,38(2):38-40.
[4]肖建庄,王幸,胡永忠,等.再生混凝土空心砌块砌体受压性能[J].结构工程师,2006,22(3):68-71.XIAO Jianzhuang,Wang Xing,Hu Yongzhong,et al.Compressive performance of concrete hollow block masonry with recycled aggregates[J].Structural Engineers,2006,22(3):68-71.
[5]严捍东,陈秀峰.废弃黏土砖再生骨料对混凝土性能的影响研究[J].四川建筑科学研究,2010,35(5):179-182.YAN Handong,CHEN Xiufeng.Study on effects of waste clay brick recycled aggregate on concrete properties[J].Sichuan Building Science,2010,35(5):179-182.
[6]曹万林,徐泰光,刘强,等.再生混凝土高剪力墙抗震性能试验研究[J].世界地震工程,2009,25(2):18-23.CAO Wanlin,XU Taiguang,LIU Qiang,et al.Experimental study on seismic performance of high-rise recycled aggregate concrete shear wall[J].World Earthquake Engineering,2009,25(2):18-23.
[7]GBJ 129-90砌体基本力学性能试验方法标准[S].GBJ 129-90 Test Method and Standard on Basic Mechanical Property of Masonry[S].
[8]夏敬谦,陈懋恭,连志勤,等.砖结构基本力学性能的试验研究[J].地震工程与工程振动,1983,3(1):43-56.XIA Jingqian,CHEN Maogong,LIAN Zhiqin et al.Experimental study on basic mechanical properties of brick buildings[J].Earthquake Engi-neering and Engineering Vibration,1983,3(1):43-56.
[9]GB 50003-2001砌体结构设计规范[S].GB 50003-2001 Code for Design of Masonry Structure[S].
[10]郝彤,刘立新,巩耀娜,等.混凝土多孔砖砌体受压应力-应变全曲线试验研究[J].建筑结构,2008,38(10):73-74.HAO Tong,LIU Lixin,GONG Yaona,et al.Experimental research on the total stress-strain curve of concrete porous brick masonry[J].2008,38(10):73-74.
[11]周理安.建筑垃圾再生砖制备技术及其性能研究[D].北京建筑工程学院硕士学位论文,2010.ZHOU Lian.Study on productive technology and performance of construction waste recycled brick[D].Beijing Institute of architectural engineer-ing,2010.
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