| 带有洞口砖墙体裂缝的起因 |
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| 引用本文： | 马富银,田锦邦,吴伟蔚.带有洞口砖墙体裂缝的起因[J].上海工程技术大学学报,2010,24(2):137-141. |
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| 作者姓名： | 马富银 田锦邦 吴伟蔚 |
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| 作者单位： | 上海工程技术大学,汽车工程学院,上海,201620太原科技大学,应用科学学院,太原,030024 |
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| 基金项目： | 上海高校知识创新工程(085工程)建设资助项目 |
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| 摘 要： | 带洞砖砌体墙体底部裂缝问题在建筑物中是一个较为常见的问题.采用有限元分析的方法模拟了各种可能载荷作用下带洞砌体墙体的应力应变情况.模拟结果表明:在窗洞及门洞下侧,铅垂方向出现正应力及剪应力的集中现象,而且剪应力的集中方向与铅垂方向约成±45°角.形象地验证了墙体中下部区域的正八字裂缝理论,也解释了在日常生活中所能看到的一些墙体裂缝的产生原因.
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| 关 键 词： | 带洞砌体结构 数值模拟 裂缝 |
Cause of Cracks in Masonry Structure with Holes |
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| MA Fu-yin,TIAN Jin-bang,WU Wei-wei.Cause of Cracks in Masonry Structure with Holes[J].Journal of Shanghai University of Engineering Science,2010,24(2):137-141. |
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| Authors: | MA Fu-yin TIAN Jin-bang WU Wei-wei |
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| Affiliation: | 1.College of Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China;2.College of Applied Science,Taiyuan University of Science and Technology,Taiyuan 030024,China) |
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| Abstract: | The issue of cracks at the bottom of masonry structure with holes is a relatively common problem.By using of the software of finite element analysis,the stress-strain of masonry walls with holes under various possible loads was simulated.The results show that stress concentration of normal stress and shear stress appears significantly in vertical direction beneath the doors or windows,and the concentration direction of shear stress is about 45 degrees from vertical direction.Through the simulation,the theory of eight-character crack in the lower part of the wall was verified,and causes of wall cracks happened in daily life were explained. |
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| Keywords: | masonry structure with holes numerical simulation crack |
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