蒸压加气混凝土板抗弯性能试验及数值模拟研究  

Experimental test and numerical analysis study on bending strength of autoclaved aerated concrete panel

作　　者：陈博珊 张国伟[1] 吴继丰 高玉春[1] 王胜[1] CHEN Boshan;ZHANG Guowei;WU Jifeng;GAO Yuchun;WANG Sheng(Beijing Higher Institution Engineering Research Center of Civil Engineering Structure and Renewable Material,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)

机构地区：[1]北京建筑大学"工程结构与新材料"北京市高等学校工程研究中心,北京100044

出　　处：《新型建筑材料》2018年第9期61-65,共5页New Building Materials

基　　金：住房城乡建设部2015科学技术计划项目(2015-K1-024);北京市新型墙体材料专项基金支持项目(20130910)

摘　　要：通过12块加气混凝土外挂墙板的四分点加载试验,研究了配筋形式对板材抗弯性能和破坏特征的影响。结果表明,加气混凝土板的最终破坏形态为弯剪破坏,试件的延性系数随着配筋面积减小而增大;在配筋面积相等的条件下,配筋根数较多的板材裂缝较多、裂缝分布相对较密。通过非线性软件ABAQUS对加气混凝土板的抗弯性能进行研究,数据表明,有限元结果与试验结果误差较小。The influence of reinforcing mode on the bending strength of autoclaved aerated concrete panels and failure mechanism was studied by four-point loading test on twelve specimens. The experimental results showed that the failure pattern of autoclaved aerated concrete panels could be defined as the bending-shear failure. The ductility coefficient of specimens increased obviously when the reinforcement area was reduced. Provided that the reinforcement area stayed the same,AAC specimens with more bars performed better on cracks formation. The numerical simulation on four specimens by FEM software ABAQUS were conducted to analyze the nonlinear properties of autoclaved aerated concrete panels as well as making comparison with experimental results. The analysis results were in good agreement with the experimental results.

关 键 词：加气混凝土 抗弯性能 破坏特征 ABAQUS软件 损伤塑性模型 

分 类 号：TU522.32[建筑科学—建筑技术科学]