| 混凝土在双向受压下力学性质的试验研究 |
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| 引用本文： | 郑慧慧,徐秋丽,王有凯. 混凝土在双向受压下力学性质的试验研究[J]. 齐齐哈尔轻工业学院学报, 2011, 0(5): 50-53 |
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| 作者姓名： | 郑慧慧 徐秋丽 王有凯 |
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| 作者单位： | [1]商丘师范学院建筑与土木工程系,河南商丘476000 [2]山东省东明县建设局,山东东明275400 [3]河南理工大学土木工程系,河南焦作454003 |
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| 摘 要： | 采用大吨位等刚度双向加载系统，对混凝土立方体试块进行了双向和单向加载的试验研究。实验结果表明：在双向加载条件下，混凝土的破坏强度远大于单轴破坏强度；由于中间主应力的增加，约束了试件的横向变形，使1：l加载破坏强度大于双轴2：1加载破坏强度；总结了在最小主应力σ3=0的情况下，试件双向σ1—σ2关系。
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| 关 键 词： | 等刚度双向加载系统 双向受压 破坏强度 中间主应力 混凝土 |
Experimental study on mechanical characteristics of concrete under biaxial compressive |
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| ZHENG Hui-hui,XU Qiu-li,WANG You-kai. Experimental study on mechanical characteristics of concrete under biaxial compressive[J]. , 2011, 0(5): 50-53 |
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| Authors: | ZHENG Hui-hui XU Qiu-li WANG You-kai |
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| Affiliation: | 1. Department of Architecture and Civil Engineering, Shangqiu Teachers College, Henan Shangqiu 476000, China; 2. Bureau of Dongming County in Shandong Province Dongming, Shandong Dong ruing 275400, China; 3. Department of Civil Engineering, Henan Polytechnic University, Henan Jiaozuo 454003, China ) |
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| Abstract: | In order to experimental study on concrete specimens under biaxial loading and uniaxial loading, we used isotropic hiaxially loading system（IBLS）.The research results indicate that： under the hidirectional loadingenvironment, the concretes breakdown strength relative single axle intensity improves; Since the increase of the intermediate principal stress whitch constrained lateral deformation of specimens, the breakdown strength under biaxial loading of σ1 ： σ2 = 1 ： 1 is bigger than that of biaxial loading of σ1 ： σ2 = 2 ： 1, Summarizes the relationship between the σ1 and σ2 , when the minimum principal stress σ3 = 0. |
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| Keywords: | isotropic biaxially loading system biaxial compressive breakdown strength intermediate principalstress concretes |
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