| 水泥混凝土直接拉伸试验研究 |
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| 引用本文： | 陈积光,祝新念,胡文峰.水泥混凝土直接拉伸试验研究[J].湖南文理学院学报(自然科学版),2007,19(3):85-87,94. |
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| 作者姓名： | 陈积光 祝新念 胡文峰 |
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| 作者单位： | 湖南理工学院土木与建筑工程系 湖南岳阳414000 |
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| 基金项目： | 湖南省自然科学基金资助项目(2004JJ40039) |
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| 摘 要： | 混凝土结构的开裂,一般的情况是由于拉应力引起的.试验证明,利用机械式双向拉伸仪,进行混凝土的直接单、双向拉伸试验是可行的,结果可靠.试验还表明,混凝土的直拉强度明显低于弯拉强度,而且,其双向拉伸强度比其单向拉伸强度还要低,表现出明显的双向拉伸强度弱化现象.试验方法和有关数据可供工程实践参考.
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| 关 键 词： | 水泥混凝土 直拉试验 弯拉试验 抗拉强度 |
| 文章编号： | 1672-6146（2007）03-0085-03 |
| 修稿时间： | 2007-07-02 |
Study on Direct Pulling Experiment of Concrete |
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| CHEN Ji-guang,ZHU Xin-nian,HU Wen-feng.Study on Direct Pulling Experiment of Concrete[J].Journal of Hunan University of Arts and Science:Natural Science Edition,2007,19(3):85-87,94. |
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| Authors: | CHEN Ji-guang ZHU Xin-nian HU Wen-feng |
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| Institution: | Dept. of Civil and Architectural Engineering, Hunan Institute of Science and Technology, Yueyang Hunan 414000 |
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| Abstract: | The crack of concrete structure was commonly aroused by tension stress.The experimentd results showed that it was feasible and tried to using mechanical two-way switch apparatus to do uniaxial and bidirectional direct pulling experiment of concrete.It was also showed that the direct pulling strength of concrete was obviously lower than the resistance to bending and tensile strength.And the bidirectional tensile strength was lower than the uniaxial tensile strength;it was showed obviously bidirectional tensile strength weakening effort.The method of experiment and relational data can be consulted for engineering. |
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| Keywords: | concrete direct pulling experiment resistance to bending and pulling experiment tensile strength |
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