BOND-SLIP-STRAIN RELATIONSHIP OF DEFORMED BARS EMBEDDED IN MASSIVE CONCRETE
BOND-SLIP-STRAIN RELATIONSHIP OF DEFORMED BARS EMBEDDED IN MASSIVE CONCRETE
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大体积混凝土中嵌入变形钢筋的粘结-滑移-应变关系
DOI：
10.2208/jscej.1987.378_165
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
H. Okamura
中科院分区：
文献类型：
--
作者：
H. Shima;L. Chou;H. Okamura
对埋入大体积混凝土中无劈裂裂缝影响的变形钢筋进行了粘结试验。从极短嵌入试验中获得的粘结滑移关系与从长嵌入试验中获得的粘结滑移关系不同。粘结应力和滑移之间的关系取决于短嵌入拉拔试验和短嵌入轴向拉伸试验中沿棒的位置。铝棒的粘结滑移关系与钢棒不同。这些结果可以通过使用独特的粘结-滑移-应变关系进行分析来获得。建立了粘结-滑移-应变关系模型。该模型包括钢筋直径和混凝土强度的影响。在应变为零、滑移为零的情况下，粘结应力只能用滑移来表示。粘结-滑移关系可以用简单的形式表示。
Bond tests of deformed bar embedded in massive concrete which have no effect of splitting crack were carried out. Bond-slip relationships obtained from extremely short embedment test are different from those obtained from long embedment test. Relationships between bond stress and slip depend on the location along a bar in short embedded pull-out test and in short embedded axial tension test. Bond-slip relationship of aluminium bar is different from that of steel bar. These results can be obtained by the analysis of using an unique bond-slip-strain relationship. The bond-slip-strain relationship model is formulated. This model includes the effect of bar diameter and concrete strength. In the case of condition that the strain is zero where slip is zero, the bond stress can be expressed only by the slip. The bond-slip relationship is formulated in simple form.