基于一些风、雪及楼梯活荷载作用超越规范的情况,本文就建筑物围护结构的瞬时风压、一些特殊建筑物的积雪分布系数、屋面积冰荷载及人群密集时的楼梯荷载等问题进行了研究。本文认为建筑物围护结构计算应采用瞬时风压,给出重现期内作用于围护结构风荷载及作用于建筑物屋面的积冰荷载的有限样本的计算方法。最后结合中国国情,给出人流密集时楼梯荷载取值的建议。 Based on the fact that some live loads of wind, snow and stairs surpass the norms, the instantaneous wind pressure of the building envelope, the snow distribution coefficient of some special buildings, the ice load on the roof and the stair load when the crowd is crowded, Were studied. This paper argues that the calculation of building envelope structure should adopt instantaneous wind pressure and gives the calculation method of the finite sample of the wind load acting on the envelope and the ice accumulation load acting on the roof of building in the period of recurrence. Finally, according to China’s national conditions, given the flow of crowded stairs when the value of the proposed load.