抗拉刚度（EA）是构件在拉力的作用下，抵抗拉伸（压缩)变形的能力。
本文还导出了缆索竖向抗拉刚度的计算公式。
In the paper, the calculating formulas of vertical tensile stiffness of cables are derived.
通过对混凝土塔壁和钢锚箱抗拉刚度的分析，推导出了各构件拉力分配公式。
Through analysis the tensile stiffness on concrete pylon wall and steel anchorage box, the formula about tension distributing of various component are induced.
还提出了高强混凝土环形截面轴心拉杆抗拉刚度计算公式，理论与试验数据吻合较好。
A formula to calculate the tensile rigidity of a HSCAS is derived, and the formula is in good agreement with the experimental data.
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