应变率对混凝土抗拉特性影响

被引:88
作者
肖诗云
林皋
王哲
逯静洲
机构
[1] 大连理工大学土木工程系
[2] 北方交通大学土木建筑学院
关键词
应变率; 抗张强度/变形特性; 吸能能力;
D O I
暂无
中图分类号
TU528 [混凝土及混凝土制品];
学科分类号
摘要
在 MTS伺服疲劳机上对混凝土进行动态受拉试验 ,分析试验结果 ,发现混凝土的抗拉强度与应变率的对数近似成线性关系 ;混凝土的弹性模量、吸能能力均随着应变率的增加而增加 ;泊松比不随应变率的变化而变化 .在此基础上 ,推导出了混凝土的抗拉强度与应变率的近似关系 ,并与文献中的结果进行了比较 .
引用
收藏
页码:721 / 725
页数:5
相关论文
共 8 条
  • [1] Effects of strain rate on concrete strength. ROSS C A,TEDESCO J W,KUENNEN S T. ACI Mater . 1995
  • [2] Numerical analysis of high strain rate concrete direct tension tests. TEDESCO J W,ROSS C A,MCGILL P B,et al. Computers and Structures . 1991
  • [3] Review of strain rate effects for concrete in tension. MALVAR L J,ROSS C A. ACI Materials Journal . 1998
  • [4] Moisture and strain rate effects on concrete strength. ROSS C A,JEROME D M. ACI Mater . 1996
  • [5] Dynamic tensile strength of concrete materials. BIRKIMER D L,LINDERMANN R. ACI J . 1971
  • [6] The mechanical properties and their fundamental equations of concrete subjected to compression in high rates of loading. IDEM. Trans Archit Inst Jpn . 1962
  • [7] The mechanical properties of several kinds of concrete at compressive, tensile, and flexural tests in high rates of loading. TAKEDA J,TACHIKAWA H. Trans Archit Inst Jpn . 1962
  • [8] CEB-FIP Model Code 1990. Comité Euro-International du Béton. . 1993