预应力也可以提高抗剪能力。在某些情况可以减少为了抗剪而需要的预加应力值。(没有听过为了提高抗剪加预应力的。能举个例子？，学习中)。

Prestressing also increases the resistance to shear forces, and in some cases reduces the amount of reinforcement required to resist shear.

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大六角头高强度螺栓连接副扭矩系数的检测，扭剪型高强度螺栓连接副坚固预拉力的检测，高强度螺栓连接磨擦面抗滑移系数的检测，是钢结构材料验收中的重要测量。

To determine the anti-slip coefficient of the high-strength bolt which connects components of friction surface, it is screwed and determined by torsion and tensile testing machines respectively.

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