| 混杂钢-聚丙烯纤维混凝土的试验研究与强度计算 |
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| 引用本文： | 陕亮,张亮. 混杂钢-聚丙烯纤维混凝土的试验研究与强度计算[J]. 长江科学院院报, 2015, 32(12): 114-119. DOI: 10.11988/ckyyb.20140858 |
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| 作者姓名： | 陕亮 张亮 |
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| 作者单位： | 1.武汉大学 土木建筑工程学院,武汉 430072;2.武汉理工大学 材料科学与工程学院,武汉 430071;3.长江科学院 材料与结构研究所,武汉 430010 |
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| 基金项目： | 长江科学院中央级公益性科研院所基本科研业务费项目 |
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| 摘 要： | 为探究混杂钢-聚丙烯纤维混凝土力学性能,基于复合材料强度理论,在试验研究的基础上,对混凝土强度对比试验结果进行数值分析,并根据试验结果规律,给出了混杂钢-聚丙烯纤维混凝土立方体抗压强度、劈裂抗拉强度和轴心抗拉强度的计算式,以及各强度间的关系。通过数理统计方法分析研究了混杂纤维混凝土中纤维体积率、长径比对强度的影响,确定了计算模式中的待定参数。从强度计算式中不同纤维对应的影响系数可以看出,对混杂钢-聚丙烯纤维混凝土的强度起决定作用的是钢纤维的体积率和长径比;混杂钢-聚丙烯纤维混凝土的强度计算式与关系式拟合效果良好,可为同行业研究者们和工程应用提供参考。
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| 关 键 词： | 混杂钢-聚丙烯纤维混凝土 强度计算式 强度关系 体积率 长径比 |
| 收稿时间： | 2014-10-09 |
Experimental Research and Strength Calculation of Hybrid Steel-polypropylene Fiber Reinforced Concrete |
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| SHAN Liang,ZHANG Liang. Experimental Research and Strength Calculation of Hybrid Steel-polypropylene Fiber Reinforced Concrete[J]. Journal of Yangtze River Scientific Research Institute, 2015, 32(12): 114-119. DOI: 10.11988/ckyyb.20140858 |
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| Authors: | SHAN Liang ZHANG Liang |
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| Affiliation: | 1.School of Civil Engineering, Wuhan University, Wuhan 430072, China; 2.School of Materials Scienceand Engineering, Wuhan University of Technology, Wuhan 430071, China; 3.Materials and StructureDepartment, Changjiang River Scientific Research Institute, Wuhan 430010, China |
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| Abstract: | On the basis of contrasting experiment results of concrete strength,numerical analysis is carried out to explore mechanical properties of hybrid steel-polypropylene fiber reinforced concrete(HSPFRC).The calculation formulas and relations among compressive strength,splitting tensile strength and axial tensile strength of HSPFRC are proposed based on the theory of composite material strength and the experimental observations.The undeter-mined parameters in the model are solved by means of statistical method,and the effects of volume fraction of fiber and length-diameter ratio on strength are taken into account for hybrid fiber reinforced concrete.In light of influ-ence parameters of the strength formulas for different kinds of fibers,we can find that volume fraction of steel fiber and length-diameter ratio are vital to the strength of HSPFRC.The calculation formulas and dependence relations are well fitted,so they can be referenced for researchers in the same field and engineering application. |
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| Keywords: | hybrid steel-polypropylene fiber reinforced concrete(HSPFRC) strength formula strength relationship volume fraction length-diameter ratio |
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