蒸压硅酸盐企口小型空心砌块抗剪性能研究  

Experimental study on the shear resistance of the small block of steam pressure silicate

作　　者：徐春一[1,2] 商阳[1] 高连玉 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]清华大学土木水利学院,北京100084 [3]中国建筑东北设计研究院,辽宁沈阳110003

出　　处：《新型建筑材料》2016年第5期26-29,共4页New Building Materials

基　　金：国家自然科学基金项目(51408373);辽宁省教育厅科学研究一般项目(L2013231)

摘　　要：将由6块蒸压硅酸盐企口小型砌块组成的双剪试件,按照GB/T 50129—2011《砌体基本力学性能试验方法》进行沿通缝抗剪试验,并与烧结黏土砖砌体、蒸压粉煤灰砖砌体及混凝土砌块砌体的抗剪性能进行对比。结果表明,由于砌块孔洞的存在使得粘浆面积相对实心砖较小,所以抗剪强度实测平均值低于烧结黏土砖和蒸压粉煤灰砖砌体的实测平均值。但蒸压硅酸盐企口小型砌块砌体的抗剪强度实测计算标准值和设计值高于混凝土砌块砌体和蒸压粉煤灰砖砌体规范标准值和设计值取值。将试验数据进行了回归,提出蒸压硅酸盐企口小型砌块抗剪强度平均值计算公式。A double shear test was carried out with 6 bricks in accordance with the Requirements of the Basic Mechanical Properties of Masonry （GB/T 50129--2011） for the shear test along the seam,then compared with the shear properties of sintered clay brick masonry,steam pressure fly ash brick masonry and concrete block masonry. Result：because of the existence of the block,the clay brick is relatively small,so the average value of shear strength is lower than that of sintered clay brick and steam pressure fly ash brick masonry. The actual measured standard value and design value of the shear strength of the small block are higher than that of the concrete block masonry and steam pressure fly ash brick masonry. The test data were carried out, and put forward the formula for calculating the average value of shear strength on the small block of steam pressure silicate.

关 键 词：蒸压硅酸盐企口小型砌块 砌体结构 通缝抗剪 抗剪强度 标准值 

分 类 号：TU522.3[建筑科学—建筑技术科学]