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程志輝，朱仁華
(華南理工大學(xué)建筑設(shè)計(jì)研究院，廣州510640)

[摘要] 理論分析與震害調(diào)查均表明，按照現(xiàn)行規(guī)范的柱端彎矩增大系數(shù)取值并不足以保證實(shí)現(xiàn)強(qiáng)柱弱梁的目標(biāo)。地震逃生保障應(yīng)作為結(jié)構(gòu)抗震設(shè)計(jì)的重要內(nèi)容，在框架結(jié)構(gòu)的樓梯間等部位設(shè)置剪力墻，既可以減少在罕遇地震作用下的彈塑性層間位移角，又易于形成梁鉸屈服機(jī)制。
[關(guān)鍵詞] 梁鉸機(jī)制；強(qiáng)柱弱梁；柱端彎矩增大系數(shù)；逃生保障設(shè)計(jì)

    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