不同砌筑方式蒸压加气混凝土砌块砌体抗压强度研究  

Experimental study on the compressive strength of autoclaved aerated concrete block masonry with different masonry methods

作　　者：赵成文[1] 刘雅楠[1] 周培厚[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]中国建筑东北设计研究院,辽宁沈阳110003

出　　处：《新型建筑材料》2010年第1期32-35,共4页New Building Materials

基　　金：<墙体材料应用统一技术规范>[建设部(2006)建标字77号文]

摘　　要：主要研究采用不同方式砌筑的蒸压加气混凝土砌块砌体的轴心抗压强度,讨论蒸压加气混凝土砌体的裂缝发展特点和破坏特征,分析其抗压承载力及应力应变关系。结果表明,蒸压加气混凝土砌体开裂后砌体还可以承受一定的压力,延性较好。蒸压加气混凝土砌体对砌块的抗压强度利用率较高,轴心受压砌体的抗压强度为砌块抗压强度的70%左右。在灰缝中配钢筋和纤维能显著提高抗压砌体的开裂强度,延缓抗压砌体开裂,提高其延性。蒸压加气混凝土承重砌块砌体的强度与传统承重砌体的强度水平相当,完全可以用于多层住宅房屋的承重结构。In this paper, the axial compressive strength of autoclaved aerated concrete block masonry laid in different methods was studied, the characters of crack development and failure features were discussed and the compressive capacity and stress-strain relationship were analyzed. The results showed that autoclaved aerated concrete block can bearing certain pressure after post-crack- ing and the ductility is relatively good. The utilization ratio of autoclaved aerated concrete masonry to the compressive strength of concrete block is quite high. The compressive strength of masonry with axial compression is about 70% of that of the concrete block. The mortar joint with fiber and steel bar can greatly enhance the cracking strength of the masonry,delay cracking, and also improve its ductility. The strength of autoclaved aerated concrete load-bearing block masonry is equivalent with traditional load- bearing masonry,which can be used in multi-tier buildings as load-bearing structure.

关 键 词：蒸压加气混凝土 砌体抗压强度 应力应变关系 

分 类 号：TU522.32[建筑科学—建筑技术科学]