开槽砌块灌孔砌体的抗剪性能试验研究  

Research on the Shear-resistance Behaviors of Grouted Slotted Block Masonry

作　　者：黄靓[1] 许仲远[1] 高翔 

机构地区：[1]湖南大学土木工程学院,湖南长沙410082 [2]中国建筑工程(香港)有限公司,广东深圳518001

出　　处：《湖南大学学报（自然科学版）》2014年第9期54-59,共6页Journal of Hunan University:Natural Sciences

基　　金：教育部创新团队项目(IRT0917)

摘　　要：通过对开槽砌块灌孔砌体的抗剪试件的静力试验研究,了解了开槽砌块灌孔砌体的试件开裂荷载、极限承载力、破坏过程和破坏特征.试验结果表明,开槽砌块灌孔砌体和普通灌孔砌块砌体相比,其抗剪强度得到一定程度的提高.分析了影响灌孔砌块砌体抗剪强度的多种因素,并根据Hoffman准则以及现行的规范公式,建立了开槽砌块灌孔砌体的抗剪强度公式,公式的计算结果与实验结果吻合较好.建立了开槽与不开槽砌块灌孔砌体抗剪强度的统一表达式,结果表明,将其运用在不开槽砌块的抗剪强度的计算中是可行的.3 groups of 1 8 shear specimens were tested to investigate the failure processes,failure char-acteristics and ultimate capacity.It was shown that,due to the knocking out of the slot rib,the upper and lower core columns were connected and thus made them collaborate.As a result,the shear strength of the grouted slotted block masonry was moderately higher than that of the ordinary grouted masonry.Based on the shear mechanism of concrete block masonry,a shear strength formula of grouted slotted block masonry was built with Hoffman criteria,and a uniform shear strength formula suitable for both slotted and unslot-ted block masonry was proposed.The calculated values,which were generated by formula developed in this method,were in good agreement with the test results.

关 键 词：砌体 空心砌块 破坏机理 抗剪强度 

分 类 号：TU205[建筑科学—建筑设计及理论]