CRACKING CHARACTERISTICS OF REINFORCED STEEL FIBER CONCRETE BEAMS UNDER SHORT- AND LONG-TERM LOADINGS

被引：7
|
作者：
TAN, KH
PARAMASIVAM, P
TAN, KC
机构：
来源：
ADVANCED CEMENT BASED MATERIALS | 1995年 / 2卷 / 04期
关键词：
BEAMS (SUPPORT); CRACKING CHARACTERISTICS; CRACK SPACING; CRACK WIDTHS; LONG-TERM BEHAVIOR; REINFORCED CONCRETE; STEEL FIBERS; STEEL FIBER CONCRETE; SUSTAINED LOADING;
D O I：
10.1016/1065-7355(94)00033-A
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this paper, an analytical method for the prediction of maximum crack width in reinforced steel fiber concrete (SFC) beams under short-term loading is first presented. The method accounts for the enhanced cracking strength, restraint against crack growth, and reduced tensile steel strains due to the presence of steel fibers. Based on a correlation analysis, a semiempirical formula for the long-term crack widths in reinforced SFC beams under sustained loads is also proposed. Tests were carried out on 10 beams to investigate the effect of steel fiber content on the cracking characteristics in both the short-and long-term. The results indicated that the use of steel fibers greatly reduced the maximum crack widths in reinforced concrete beams. Good agreement was generally obtained between the analytical predictions and test results.
引用
收藏
页码：127 / 137
页数：11
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