【摘要】 研究支座条件对钢筋混凝土螺旋形楼梯内力的影响，分析螺旋形楼梯工程设计中存在的问题，在大量螺旋形楼梯算例分析和内力分布规律研究的基础上，给出一些因素对不同支座条件下各内力比值的影响曲线，为工程设计中考虑支座影响和调整计算内力提供参考。更多还原

【Abstract】 The effect of supporting condition on the internal force of reinforced concrete spiral stair is studied.The problems in the design of spiral stair are analysised.On the basis of the analysis of the calculating examples and the studies of the pattern of the internal force distribution on a large number of the spiral stairs,the curves of the effect of some factors on the internal force ratio of the slab under the different supporting condition are put forward.it may provide reference for engineering design considering support adjustment calculating internal force.更多还原