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从“粘结机理分析”一文(交通学院学报88年第3期)中的描述可以看到以下两点: 1.钢筋与混凝土之间的粘结性能取决于许多影响因素,如钢筋的表面型式,混凝土和压浆的强度,浇筑混凝土时钢筋所处的位置以及横向压力等等。 2.粘结应力的出现总是伴随有钢筋与混凝土之间的相对滑移同时产生。 粘结问题的一个数学描写是从以下两点出发的:①钢筋和周围混凝土之间在dx距离上的滑移的改变d△x等于钢筋与混凝土的伸长之差,②建筑材料,钢筋和混凝土处于纯弹性阶段,
The following two points can be seen in the description of “Mechanism of Binding Mechanisms” (Journal of Transportation, Issue 88, Issue 3): 1. The bond between rebar and concrete depends on many influencing factors such as the surface pattern of the rebar , The strength of concrete and grouting, placement of concrete in pouring concrete and lateral pressure, and so on. 2. The appearance of bond stress is always accompanied by the relative slip between reinforcement and concrete. A mathematical description of the bond problem starts from the following two points: 1. The change in the dx distance between the rebar and the surrounding concrete, dΔx, is equal to the difference between the elongation of the rebar and the concrete. ② The construction materials, Concrete is purely elastic stage,