冻融损伤混凝土与光圆钢筋黏结性能试验研究
doi: 10.13204/j.gyjz201502006
EXPERIMENTAL RESEARCH ON BOND BEHAVIORS BETWEEN PLAIN STEEL BARS AND CONCRETE AFTER FREEZING AND THAWING CYCLES
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摘要: 冻融在造成混凝土物理力学性能变化的同时,势必改变混凝土与钢筋之间的黏结性能。利用C30、C40、C50三种混凝土强度中心短埋试件单调和往复荷载试验,研究冻融损伤对混凝土与光圆钢筋黏结应力-滑移曲线的影响,分析单调荷载下峰值黏结应力、峰值滑移和残余黏结应力的变化规律,探讨往复荷载作用下峰值黏结退化率与加载循环次数之间的关系。Abstract: Freezing and thawing while causing physical changes in the mechanical properties of concrete,it is bound to change the bond properties between concrete and steel. Center short buried specimens of three concrete strengths C30,C40 and C50 were subjected to the monotonic and cyclic loading tests,the effect of the freeze-thaw damage on concrete and plain bars bond stress-slip curve was studied,and the variation of the peak bond stress,peak slip and residual bond stress under monotonic loading was also analyzed,finally the relationship between the ultimate bond degradation rate and load cycles under cyclic loading was explored.
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Key words:
- frozen-thawed concrete /
- plain steel bar /
- monotonic loading test /
- cyclic loading test /
- bond-slip
期刊类型引用(3)
1. 吕浩恒,李作华,张语晴. 冻融损伤后再生骨料混凝土与螺纹钢筋间粘结性能研究. 桂林航天工业学院学报. 2024(05): 714-721 . 百度学术
2. 熊拓新. 冻融后钢筋与混凝土的粘结性能研究进展. 山西建筑. 2018(10): 32-34 . 百度学术
3. 沙勇,宿晓萍. 冻融环境下引气剂对钢筋与混凝土黏结性能影响的试验研究. 长春工程学院学报(自然科学版). 2017(01): 26-29 . 百度学术
其他类型引用(1)
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