本文用矢量算法推导了两端固定和一端固定一端简支的螺旋楼梯的计算公式,并提出了一些在配筋及构造上应该加以注意的问题,可供设计参考。 本文所介绍的方法概念清楚,推导过程简单,对于其他类型的单跨空间曲梁也同样适用。 In this paper, the calculation formulas of the spiral staircases with fixed ends and fixed ends at one end are deduced by the vector algorithm, and some problems that should be paid attention to in the reinforcement and structure are proposed for reference. The method described in this paper is conceptually clear and the derivation process is simple. It is also applicable to other types of single-span spatial curved beams.