灌孔N式砌块砌体抗压强度理论研究  

Research on the Compressive Behaviors of Grouted N-type Block Masonry

作　　者：万智 黄靓[3] 刘燕[3] 徐紫鹏[3] 高翔[3] 陈胜云[3] 

机构地区：[1]中南大学土木建筑学院,湖南长沙410075 [2]湖南省交通科学研究院,湖南长沙410015 [3]湖南大学土木工程学院,湖南长沙410082

出　　处：《湖南大学学报（自然科学版）》2011年第4期20-24,共5页Journal of Hunan University:Natural Sciences

基　　金：湖南省交通运输厅2009年科技进步与创新计划资助项目(200916);国家985工程资助项目(521805020003);国家自然科学基金青年基金资助项目(50808074);教育部新教师基金资助项目(200805321044)

摘　　要：对12个灌孔N式砌块砌体抗压试件(其中半灌孔试件6个,全灌孔试件6个)进行了受压性能试验,分析了灌孔砌块砌体受压的破坏形态和极限承载力.试验结果表明:N式砌块砌体与普通混凝土小型砌块砌体(标准砌块)相比,其独特的截面几何形状使得N式砌块砌体孔、肋具备良好的对齐率,较好地改善了砌块砌体的受压性能.对于灌孔N式砌块砌体,给出了半经验半理论的抗压强度计算公式,公式计算值与试验结果吻合良好.Through the experiments of 12（6 half-grouted and 6 full-grouted） compressive specimens,the failure pattern and the ultimate capacity of concrete block masonry were analyzed.Test results showed that the compressive strength and the elastic modulus of two ends opened block masonry were enhanced compared to the common concrete block masonry（like K-block）.Based on the compression mechanism of two ends opened block masonry,a semi-empirical theory formula was presented for grouted two ends opened block masonry.And the calculation results with the formulas were in good agreement with the test results.

关 键 词：N式砌块 灌孔率 抗压强度 破坏机理 

分 类 号：TU362.02[建筑科学—结构工程]