蒸压粉煤灰砖砌体抗剪性能试验  

Experimental Study on Shear Behavior of Autoclaved Fly Ash Brick Masonry

作　　者：徐春一[1,2] 刘明[1] 张吉松[3] 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]大连理工大学建设工程学部,辽宁大连116024 [3]鞍山市建筑设计研究院,辽宁鞍山114000

出　　处：《沈阳建筑大学学报（自然科学版）》2011年第2期221-226,共6页Journal of Shenyang Jianzhu University：Natural Science

基　　金：国家十一五科技支撑计划项目(2008BAJ08B11-03)

摘　　要：目的研究蒸压粉煤灰砖砌体沿通缝截面的抗剪性能,为编制《蒸压粉煤灰砖建筑技术规范》和完善我国《砌体结构设计规范》(GB50003-2001)提供试验依据.方法利用9块砖组砌成双剪试件,对24个蒸压粉煤灰砖砌体试件及24个烧结黏土砖砌体试件进行通缝抗剪试验,对比分析两种砖的破坏形态及抗剪强度.结果蒸压粉煤灰砖砌体抗剪强度较烧结黏土砖砌体抗剪强度提高了12%.将试验结果进行回归分析,给出蒸压粉煤灰砖砌体抗剪强度平均值的计算公式为fv,m=0.04f2.结论建议新型蒸压粉煤灰砖砌体抗剪强度的标准值及设计值仍按规范取值.蒸压粉煤灰砖砌体具有良好的抗剪性能,可以在实际工程上替代烧结黏土砖使用.To study the shear behavior of autoclaved fly ash brick masonry along the seam section and to provides an experimental basis for compilation of technical regulations and perfecting the Code for Design of Masonry Structures of China,shear tests were conducted on 24 samples of autoclaved fly ash solid brick masonry and 24 samples of fired clay brick masonry with 9 bricks composed of double shearing specimens.The damage patterns and shear strength are compared and analyzed.The experimental results indicate tha...

关 键 词：蒸压粉煤灰砖 砌体 抗剪强度 最小二乘法 标准值 

分 类 号：TU364[建筑科学—结构工程]