现行建筑抗震设计规范多高层钢结构梁柱刚性连接设计方法的技术矛盾.pdfVIP

40 6 2010 6 1 1 2 刘其祥 , 陈幼 , 陈青来 ( 1 , 100044; 2 , 250061) [ ] , 542! ∀ , M #12M u p , , 542! ∀,, , [ ] ; ; ; ; ; Contradictions in current Codef or Seismic D esign of Buildings about beamcolumn rigid joint design of highrise steel structures 1 1 2 Liu Qixiang , Chen Youfan , Chen Qinglai ( 1 China Institute of uilding Standard Design Research, eijing 100044,China;2 Shandong University,Jinan 250061, China) Abstract:The stipulations about the beamcolumn rigid joint of highrise steel structures are deeply analyzed in Codef or Seismic Design of Building s (G 50011∃ 2001) . It is pointedout that there are contradictions between the stipulations and the term 542 of demanding ! strong joint∀ in the code. Under the ! lower∀ level earthquake action, according to the stipulation there are three design results with great disparity, and two results of these are unsafety. When taking the code formula M u #12Mp to calculate the joint at the elastoplastic condition on the! middle∀ or ! great∀ level earthquake action, the results are not satisfied the demand of seismic. In order to guarantee satisfying the mandatory seismic term 542 of! strong joint∀ , the suggestions are put forward. Keywords:! lower∀ level earthquake; design value of assembled interior seism forces; steel frame; beamcolumn rigidity joint; member; antiseismic bearing capacity factor; ductility 0 ; R , ; ,