【摘要】 楼梯作为建筑物垂直交通以及紧急情况下的人流疏散的主要通道,对建筑物正常的功能使用和人员生命安全保障有直接的关系,其在整体结构安全中的重要作用应当引起关注。分析地震引发的楼梯受损破坏的原因,对楼梯间梯梁的加固方案进行相应比较,并给出钢筋混凝土梯梁的加固设计方案;可对正在从事加固设计及施工的工程人员提供一些经验,从而提高结构抵抗自然灾害的能力。更多还原

【Abstract】 Stairs as the building of vertical transport and emergency evacuation under the main channel flow of a building are related directly to the normal function of the building use and safety and security of human life,whose important role in the overall structural safety should be concerned.This paper analyzes the reasons of the damages the stairs by seism and compares,on the staircase ladder beam strengthening programs,gives the design scheme of strengthening reinforced concrete ladder beam;which can provide some experience for the designers and constructors,thereby enhancing the structural resistance to natural disasters.更多还原