(中国建筑设计研究院  北京 100044)
【提要】  钢结构房屋中的梁柱刚性连接节点有全焊接刚性连接节点和栓焊刚性连接节点两种,地震区的刚性连接节点设计要满足多遇地震下弹性状态的承载力要求和罕遇地震下弹塑性状态的承载力和变形要求。大震下刚性连接节点的脆性破坏除了质量缺陷外,还有焊接工艺、焊接方法、节点形式和焊接材料等方面的原因。设计应选取合适的节点类型,严格控制不同部位的焊缝质量等级以保证焊接连接的质量。
【关键词】  钢结构房屋  梁柱刚性连接节点  抗震设计  塑性铰
Design of Rigidity Connection Joints of Beam to Column in Steel Frame Structure/Jiang Xueshi(China Architecture Design & Research Group,Beijing 100044,China)
Abstract:There are two kinds of rigidity connection joints in steel frame structure:the all welded joints and the welded and bolted joints.The carrying capacity demands in elastic state under minor earthquakes and the carrying capacity and deformati on demands in elasticplastic state under major earthquakes must be satisfied in the joints design in earthquake area.The brittle breaking of the rigidity joints under major earthquakes is the results of quality defect,welding technology,welding method,joint fashion and welding materials.The proper joints style should be selected and the connection quality of welding should be guaranteed by controlling the welding quality grade.
Keywords:steel structure; rigidity connection; beam column joint; seismic design; plastic hinge