用单索计算理论计算主索和副索的所受最大水平拉力，确定其最小直径。
Using single - plane calculation theory, this paper calculate the maximum horizontal pull of main and assistant cable, determine its minimize diameter.
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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