Modified local bond stress-slip model for self-compacting concrete

被引：0
作者：
Desnerck, P. [1 ]
De Schutter, G. [1 ]
Taerwe, L. [1 ]
机构：
[1] Univ Ghent, Dept Struct Engn, Magnel Lab Concrete Res, B-9000 Ghent, Belgium
来源：
ADVANCES IN CEMENT-BASED MATERIALS | 2010年
关键词：
STRENGTH; BARS;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The force transfer in reinforced concrete is provided by the concrete-to-steel bond. This phenomenon has widely been studied for conventional vibrated concrete (CVC). For self-compacting concrete (SCC) however less test results are available. To fill in this lack and to develop adapted standards for predicting the bond of reinforcement in SCC, an experimental program has been set up. The bond strength of reinforcement bars with different diameters has been tested by means of "beam-test" specimens. During testing the bond stress-slip response was recorded. From the test results it can be seen that the maximum bond strength of SCC is slightly higher than for CVC when small bar diameters are studied. For larger bar diameters the difference becomes smaller. Comparison of the test data with bond models indicated that the bond clauses underestimated the bond strength for SCC as well as for CVC. Therefore an adjustment of the bond model has been made.
引用
收藏
页码：57 / 64
页数：8
相关论文
共 15 条
[1]  
CEB-FIP, 1990, MOD COD 1990
[2]  
CHAN YW, 2003, ACI STRUCTURAL J, V100
[3]   Bond-slip behavior of self-compacting concrete and vibrated concrete using pull-out and beam tests [J].
de Almeida Filho, Fernando Menezes ;
El Debs, Mounir K. ;
C. El Debs, Ana Lucia H. .
MATERIALS AND STRUCTURES, 2008, 41 (06) :1073-1089
[4]  
De Schutter G., 2007, P 5 INT RILEM S SELF
[5]  
De Schutter G., 2008, SELF COMPACTING CONC
[6]  
Dehn F., 2000, SELF COMPACTING CONC
[7]  
DESNERCK P, 2008, 3 N AM C DES US SELF
[8]   Numerical bond analysis using experimentally derived local bond laws: A powerful method for evaluating the bond strength of steel bars [J].
Harajli, M. H. .
JOURNAL OF STRUCTURAL ENGINEERING, 2007, 133 (05) :695-705
[9]  
HARAJLI MH, 1994, ACI STRUCT J, V91, P511
[10]  
Huang Z., 1996, 944 CHALM U TECHN
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