期刊文献+

混凝土轴拉和弯曲试验中不连续点的确定 被引量:4

Calculation of Uncontinuous Point in Tensile and Bending Tests of Concrete
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摘要 提出了在混凝土抽拉和弯曲试验中确定不连续点的一种新方法———线性相关系数陡降法,并用试验数据对其进行了验证,得到的不连续点强度的计算结果令人满意.讨论了本文方法计算所得不连续点应变的精度较差的原因. A new method is developed to calculate the uncontinuous point in tensile and bending tests of concrete by sudden reduction of linearly related coeflicient.The method is used to calculate the strength at the uncontinuous point from test data, and the result is satisfactory.However for the strain at the uncontinuous point,the accuracy is not enough.The causes are discussed in the paper.
出处 《河海大学学报(自然科学版)》 CAS CSCD 1998年第1期111-113,共3页 Journal of Hohai University(Natural Sciences)
基金 国家"八五"科技攻关项目
关键词 混凝土 轴向拉伸 弯曲 不连续点 试验 concrete tenile bending uncontinuous point test
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参考文献5

  • 1安玲,1994年
  • 2李兴贵,1986年
  • 3林毓梅,水利学报,1984年,5卷,65页
  • 4团体著者,SDJ105-82水工混凝土试验规程,1983年,167页
  • 5文明秀,混凝土及加筋混凝土,1983年,4卷,56页

同被引文献46

  • 1李庆斌,卿龙邦,管俊峰.混凝土裂缝断裂全过程受黏聚力分布的影响分析[J].水利学报,2012,43(S1):31-36. 被引量:16
  • 2徐世娘.混凝土断裂力学[M].北京:科学出版社,2011.
  • 3高丹盈,张廷毅.三点弯曲下钢纤维高强混凝土的断裂性能(英文)[J].硅酸盐学报,2007,35(12):1630-1635. 被引量:20
  • 4Shah S P, Swartz S E, Ouyang C. Fracture mechanics of concrete [M]. New York: Wiely, 1995.
  • 5Dong W, Wu Z M, Zhou X M. Calculating crack extension resistance of concrete based on a new crack propagation criterion [J]. Construction & Building Materials, 2013, 38(2): 879-889.
  • 6Xu F, Wu Z M, Zheng J J, et al. Crack extension resistance curve of concrete considering variation of FPZ length [J]. Journal of Materials in Civil Engineering, 2011, 23(5): 703-710.
  • 7Kumar S, Barai S V. Influence of loading condition and size-effect on the KR-curve based on the cohesive stress in concrete [J]. International Journal of Fracture, 2009, 156(1): 103-110.
  • 8Dong W, Zhou X M, Wu Z M. On fracture process zone and crack extension resistance of concrete based on initial fracture toughness [J]. Construction & Building Materials, 2013; 49('6): 352-363.
  • 9Kumar S, Barai S V. Determining double-K frace parameters of concrete for compact tension and wedge splitting tests using weight function [J]. Engineering Fracture Mechanics, 2009, 76(7): 935-948.
  • 10Zhang X F, Xu S L. A comparative study on five approaches to evaluate double-K fracture toughnessparameters of concrete and size effect analysis [J]. Engineering Fracture Mechanics, 2011, 78(10): 2115- 2138.

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