《建筑抗震设计规范》在多高层钢结构房屋抗侧力构件连接构造规定中存在的安全问题  

Safety problems of lateral force resistance joint construction about multi-story and tall steel structures in Code for seismic design of buildings

作　　者：刘其祥 陈青来[2] 陈幼璠 

机构地区：[1]中国建筑标准设计研究院,北京100044 [2]山东大学,济南250061

出　　处：《建筑结构》2012年第2期107-112,共6页Building Structure

摘　　要：新颁布的《建筑抗震设计规范》(GB 50011—2010)在"钢框架结构的抗震构造措施"中所推荐的框架梁与柱的现场连接和框架柱与梁悬臂段的连接,是属于弱连接构造而非强连接构造。分析了造成差错的根本原因,指出了规范中推荐的连接构造和采用的极限承载力计算公式均存在缺陷。用极限承载力计算方法验证了规范推荐的上述连接抗力不足,存在安全隐患。据此,提出了加强连接的构造做法及其相应的计算建议。The frame beam and column connections and frame column and cantilever beam connections recommended by Code for seismic design of buildings（GB 50011—2010）,are not strong but weak joints.Through using the ultimate bearing capacity calculation method,it is verified that the resistance force of the joints above-mentioned is insufficiency and exists hidden safety danger.The fundamental reasons for errors were analyzed.The connection structure and the formula of the ultimate bearing capacity calculation method recommended by the code have faults.The method of enhancing connect structure and the corresponding calculating suggestion are put forward.

关 键 词：抗震设计 钢结构 抗侧力 屈服强度 抗拉强度 强屈比 连接的极限承载力 

分 类 号：TU391[建筑科学—结构工程]