程志辉，朱仁华
(华南理工大学建筑设计研究院，广州510640)

[摘要] 理论分析与震害调查均表明，按照现行规范的柱端弯矩增大系数取值并不足以保证实现强柱弱梁的目标。地震逃生保障应作为结构抗震设计的重要内容，在框架结构的楼梯间等部位设置剪力墙，既可以减少在罕遇地震作用下的弹塑性层间位移角，又易于形成梁铰屈服机制。
[关键词] 梁铰机制；强柱弱梁；柱端弯矩增大系数；逃生保障设计

    Study on acbieving the beam hinge mechanism based on the design of escape protection
    Cheng Zhihui, Zhu Renhua
    (Architectural Design & Research Institute South China University ofTechnology, GuangZhou 510641, China)

Abstract: The theory and the survey from the disaster in Wenchuan Earthquake show that valuing moment augment factor ofcolumn according to the criterion isn't enough to certify for the target to 'Strong Column and Weak Beam'. The protection of escape from earthquake should be an important content of structure seismic design. Setting shear wall on the staircase and in frame structure can reduce the elastic-plastic inter-story drift under strong earthquake, also be easy to form the beam hinge mechanism.
Keywords: the beam hinge mechanism; Strong Column and Weak Beam; moment augment factor of column; design of escape protection from earthquake