摘要
参照《混凝土结构试验方法标准》(GB50152—92),通过拔出试验,获得了不同再生粗骨料取代率下的再生混凝土与不同类型钢筋之间的荷载-滑移曲线.基于试验结果的对比分析,研究了不同再生粗骨料取代率和钢筋类型对再生混凝土与钢筋之间粘结强度的影响.在对试验数据回归分析的基础上,建议了再生混凝土与钢筋间的粘结滑移本构关系的表达式,并对钢筋在再生混凝土中的锚固长度取值进行了初步探讨.
According to ＂Standard Methods for Testing of Concrete Structures＂ （GB50152-92）, a pull-out test was designed, and the load vs. slip curves between recycled concrete with different recycled coarse aggregate replacement percentages and different types of rebars were recorded. Based on the analysis of the test results, the bond strength between recycled concrete and rebars was investigated. Regression analysis on the test results was performed and the bond stress vs. slip relationship was proposed. Moreover, the anchorage length of rebars in recycled concrete was preliminarily suggested.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第1期13-16,共4页
Journal of Tongji University:Natural Science
基金
上海市科学技术委员会科研资助项目(02DZ1210404DZ05044)
关键词
再生混凝土
再生粗骨料取代率
粘结-滑移
recycled concrete
recycled coarse aggregate replacement percentage
bond-slip
