旧砖含水率对砌体抗剪强度的试验研究  

Experimental study on shear strength of masonry with moisture content of old brick

作　　者：王伟明 张家玮[2] WANGWeiming;ZHANG Jiawei(China Railway Siyuan Group Southwest Survey and Desiagn Co.,Ltd.,Kunming 650206,China;School of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]中铁四院集团西南勘察设计有限公司,云南昆明650206 [2]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《混凝土》2019年第11期107-110,共4页Concrete

基　　金：国家自然基金（51368035）

摘　　要：通过旧砖含水率对砌体抗剪强度影响的试验研究,分析了旧砖含水率随浸泡时间的变化规律,探讨了旧砖含水率对砌体抗剪强度的影响,试验研究表明随着旧砖含水率的增加,砌体的抗剪强度先增加后减小。通过对试验结果的归纳分析,建立了旧砖含水率对砌体抗剪强度影响的计算公式,该公式的计算值与试验结果吻合较好,并给出了旧砖的最佳含水率。It analyses the law of old brick moisture content changing with the immersion time through the experimental study of the influence of the old brick moisture content on the shear strength of masonry,then investigate the correlation between the moisture content of the old brick with masonry shear strength.The study shows that as the moisture content of the old brick increases,the shear strength of the masonry increases first and then decreases.Through the induction and analysis of the test results,the formula of the moisture content of the old brick which influent the shear strength of the masonry is established.The calculated value of this formula is in good agreement with the test results,and the optimum moisture content of the old brick is given.

关 键 词：砌体 旧砖含水率 抗剪强度 

分 类 号：TU528.041[建筑科学—建筑技术科学]