EPS混凝土砌块墙体抗压性能试验研究
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摘要
采用自制的EPS轻质节能混凝土砌块,设计6组18片EPS混凝土砌块墙体,考虑砂浆强度、偏心距和高厚比的影响,开展墙体抗压破坏试验,观测墙体在轴心及小偏心竖向荷载作用下的受力过程、开裂荷载、破坏荷载,研究墙体受压性能。结果显示:EPS混凝土砌块墙体的受压破坏过程类同于普通标准砖和普通混凝土砌块墙体,但开裂荷载较2种普通砌体大,抗变形能力也较2种普通砌体强。提出了EPS混凝土砌块墙体抗压承载力计算方法,比较抗压承载力的计算值和实测值,两者吻合较好。
Utilizing the EPS lightweight energy-saving concrete block made by ourselves,6 groups of 18 EPS concrete block walls was designed. Considering the influence of strength of mortar,eccentricity and thickness ratio,and then carrying out compressive damage test on the walls,the stress process,cracking load and failure load of the walls under the axial and eccentric vertical loads were observed,and the compressive behavior of the walls was studied. The results show that the compressive failure process of the EPS concrete block walls is similar to normal standard brick wall and normal concrete block wall,but its cracking load is bigger,so is the anti-deformation ability,comparing with the later. Proposed the calculation method of compressive bearing capacity of the EPS concrete brick wall,compared the calculated value with the measured value,and it shows they agree well with each other.
Utilizing the EPS lightweight energy-saving concrete block made by ourselves,6 groups of 18 EPS concrete block walls was designed. Considering the influence of strength of mortar,eccentricity and thickness ratio,and then carrying out compressive damage test on the walls,the stress process,cracking load and failure load of the walls under the axial and eccentric vertical loads were observed,and the compressive behavior of the walls was studied. The results show that the compressive failure process of the EPS concrete block walls is similar to normal standard brick wall and normal concrete block wall,but its cracking load is bigger,so is the anti-deformation ability,comparing with the later. Proposed the calculation method of compressive bearing capacity of the EPS concrete brick wall,compared the calculated value with the measured value,and it shows they agree well with each other.
引文
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[12]毕洁夫,吴辉琴,黄月生,等.竹纤维增强矿粉-粉煤灰水泥基材料力学性能研究[J].广西科技大学学报,2014(6):26-29.
[13]刘鹏.EPS轻质节能混凝土砌块砌体基本力学性能研究[D].柳州:广西科技大学,2014.
[14]陈卫东,张国侠,李兵,等.EPS新型节能墙体结构的力学性能分析[J].工业建筑,2007(增刊):170-172.
[2]陈晓黎,董健苗,吴辉琴,等.EPS改性方法与水泥基材料力学性能的关系[J].混凝土,2013(6):13-15
[3]吴辉琴.一种聚苯乙烯轻质节能型混凝土砌块及其制备方法.中国:ZL2013-1-0725819.X[P].2015-11-04.
[4]董健苗,户相洛,毕杰夫,等.聚苯颗粒轻质混凝土砌块物理力学性能研究[J].混凝土,2014(2):133-135.
[5]吴辉琴,王痛快,吴超,等.EPS轻质节能混凝土砌块砌体受压变形性能试验研究[J].施工技术,2016(12):90-94.
[6]吴辉琴,吴超,李青,等.EPS轻质节能混凝土砌块砌体抗剪性能试验研究[J].广西科技大学学报,2016(2):9-13.
[7]吴辉琴,谢小娟,李青,等.EPS轻质节能混凝土砌块砌体抗压性能研究[J].广西大学学报(自然科学版),2016(4):982-991.
[8]施楚贤.砖砌体和钢筋混凝土构造柱组合墙的承载力计算[J].建筑结构,2003(7):67-69.
[9]郁晓玲,明胜,汤伟忠,等.新型复合墙体抗压性能试验研究[J].建筑结构,2016,46(6):60-66.
[10]周贤文.再生骨料混凝土空心砌块的实验研究[J].混凝土,2007(5):89-91.
[11]翟强.EPS模块轻骨料混凝土墙抗压强度试验研究[J].工程与试验,2013,3(15):56-58.
[12]毕洁夫,吴辉琴,黄月生,等.竹纤维增强矿粉-粉煤灰水泥基材料力学性能研究[J].广西科技大学学报,2014(6):26-29.
[13]刘鹏.EPS轻质节能混凝土砌块砌体基本力学性能研究[D].柳州:广西科技大学,2014.
[14]陈卫东,张国侠,李兵,等.EPS新型节能墙体结构的力学性能分析[J].工业建筑,2007(增刊):170-172.