踏步板

钢筋混凝土梁式楼梯踏步板截面配筋的实用计算

The applicable calculation of steel in the steel reinforced concrete bridge-stair steps

这个双螺旋结构的两股之间是由成对的核酸联结的，它们就像螺旋式楼梯中的踏步板。

The two strands of the double helix are linked by pairs of nucleic acids like the treads in a spiral staircase .

结果表明，计入楼梯踏步板对框架结构的自振周期、刚度分布及构件内力影响较大，对框剪结构有一定影响，对剪力墙结构影响不大。

The result of the analysis shows that consideration of stairs in calculating greatly affects the natural period , stiffness distributing and internal forces of members in frame structure . The effect becomes light in frame shear structure and can be ignored in shear wall structure .