【摘要】 通过8块蒸压加气混凝土外挂墙板的抗弯试验,研究了蒸压加气混凝土外挂墙板的抗弯性能,对比分析了跨度和剪跨比对板材的刚度、延性和承载力的影响。试验结果表明,配筋为38的蒸压加气混凝土外挂墙板材可以满足北京地区高层建筑结构外挂墙板在正常使用极限状态下的抗风、抗震要求。四分点加载的6块蒸压加气混凝土外挂墙板最终的破坏形态以弯曲破坏为主,三分点加载的2块蒸压加气混凝土外挂墙板最终的破坏形态以剪切破坏为主。基于规范公式得到蒸压加气混凝土外挂墙板的设计承载力,其理论值与试验值比较吻合。更多还原

【Abstract】 The bending experiments on 8 autoclaved aerated concrete( AAC) external panels were conducted to study the flexural behavior of AAC external panels and the influence of span and shear span ratio on the stiffness,ductility and bearing capacity of AAC slabs was compared and analyzed. The experimental results show that the AAC external panels with 38 reinforcement can meet the requires of wind load and seismic action of high-rise buildings under serviceability limit state in Beijing. The final failure pattern of 6 AAC external panels subjected to four-point loading can be defined as the flexural failure,while the final failure pattern of 2 AAC external panels subjected to three-point loading can be defined as the shear failure. The design bearing capacity of the AAC external panel was obtained based on code formulas and the theoretical value was in good agreement with the experimental value.更多还原