FACTORS AFFECTING ANCHORAGE BOND STRENGTH IN HIGH-PERFORMANCE CONCRETE
FACTORS AFFECTING ANCHORAGE BOND STRENGTH IN HIGH-PERFORMANCE CONCRETE
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DOI：
10.14359/4645
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发表时间：
2000-05
影响因子：
1.8
通讯作者：
V. Yerlici;T. Özturan
中科院分区：
文献类型：
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作者：
V. Yerlici;T. Özturan
本研究的目的是观察混凝土的抗压强度，钢筋尺寸，混凝土保护层的厚度，以及网络钢筋的锚固粘结强度和粘结性能的钢筋高性能混凝土的量的影响。为此，在单调荷载作用下对高性能混凝土试件进行了偏心拉拔粘结试验。有些试件用一根钢筋加固，有些用两根钢筋加固。结果表明，钢筋与混凝土之间的粘结强度随着混凝土强度、保护层厚度和腹筋数量的增加而增加，随着钢筋尺寸的增加而减小。使用测试数据，相对于每个所述参数的平均粘结强度的变化被公式化。每个参数的变化趋势与美国混凝土协会建筑规范和欧洲规范2的发展长度表达式中固有的相关趋势进行了比较。所需的发展长度的表达式，包围所有的测试标本，提出。
The objective of this investigation was to observe the effect of the compressive strength of concrete, reinforcing bar size, thickness of concrete cover, and amount of web reinforcement on the anchorage bond strength and on the bond behavior of reinforced high-performance concrete. For this purpose, eccentric pullout bond tests were conducted under monotonic loading on high-performance concrete specimens. Some of the specimens were reinforced by one and some by two deformed steel bars. Results indicated that the bond strength between reinforcement and concrete increased with increasing concrete strength, cover thickness, and amount of web reinforcement, while it decreased with increasing bar size. Using the test data, the variation in the average bond strength with respect to each of the stated parameters is formulated. The trend of variation for each parameter is compared with the associated trends inherent in the development length expressions of the American Concrete Institute Building Code and the Eurocode 2. An expression for the required development length, enveloping all the tested specimens, is presented.