| 摘要: |
| 对设计配筋形式的4块蒸压加气混凝土(AAC)墙板进行结构性能试验研究，测定了其短期挠度检验、出厂检验、承载力检验这3个阶段的相关荷载和位移；绘制了试验过程中板材的荷载挠度的变化曲线；得到了设计配筋形式AAC墙板以弯曲破坏为主的弯剪破坏模式.利用有限元软件对试验板材进行模拟，分析板材承载力的有限元结果，发现用有限元计算的钢筋应力大小与试验结果基本吻合.结果表明，该配筋形式AAC墙板的各项力学性能指标均符合相关规程的规定，且承载力可靠系数的试验平均值和数值计算值分别为1.968和1.911.研究成果有助于该板材的设计与推广应用. |
| 关键词: |
| DOI：10.3969/j.issn.1007 9626.2012.02.024 |
| 分类号: |
| 基金项目:教育部新世纪优秀人才支持计划项目（NCET 06 0228） |
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| Experimental and Numerical Analysis Study on the Structural Performance of Autoclaved Aerated Concrete(AAC) Wall Slab |
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QU Xiu shu, CHEN Zhi hua, SUN Guo jun
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School of Civil Engineering, Tianjin University, Tianjin 300072, China
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| Abstract: |
| Four autoclaved aerated concrete(AAC) wall slabs with special truss model designed were prepared for studying their structural performance. The related loading and displacement of the three inspection stages, which are short term deflection, outgoing and bearing capacity, were obtained. The load displacement curves of wall slabs were plotted. The failure mode of the designed slab was shown to be bending shear failure mode especially bending failure. Then, the experimental result was analyzed by using the finite element software to obtain the steel bar stress. The simulated results are basically in agreement with those from experimental. Both the simulated and experimental results indicate that the mechanical properties of design autoclaved aerated concrete wall slab with special truss model are in accordance with relevant specifications.The average experimental value and numerical analysis value of bearing capacity reliable coefficient of AAC wall slab are 1.968 and 1.911, respectively. The conclusions presented in this paper can be a reference for later analysis in scopes of research and design and engineering applications. |
| Key words: autoclaved aerated concrete(AAC) wall slab short term deflection bearing capacity finite element reliable coefficient |
