摘要
文章研究了支管受拉或受压的圆钢管混凝土Y形节点在各种失效模式下的受力性能和破坏机理,基于不同失效模式下的破坏机理和受力状态,建立了合理的力学计算模型,提出了支管截面形式为圆形或矩(方)形的圆钢管混凝土Y形节点极限承载力计算方法,并通过试验验证了所提计算方法的合理性。研究结果表明,文中所提出的圆钢管混凝土Y形节点极限承载力计算方法可以用于圆钢管混凝土桁架结构设计和实际工程。
The mechanical behavior and failure mechanism of the circular concrete filled steel tubular(CFST)Y-joints under different failure modes with brace tension and compression are investigated.Based on the failure mechanism and force state under different failure modes,the reasonable mechanics models are established,and the ultimate bearing capacity calculation methods of circular CFST Y-joints with circular brace and rectangle brace are proposed.The calculation methods are validated through comparing with test results.The results show that the proposed calculation methods of ultimate bearing capacity of circular CFST Y-joints are applicable for structure design and practical engineering of the circular CFST truss.
作者
左金洲
王静峰
邢文彬
李守继
ZUO Jinzhou;WANG Jingfeng;XING Wenbin;LI Shouji(School of Civil and Hydraulic Engineering,Hefei University of Technology,Hefei 230009,China;Anhui Advanced Steel Structural Technology and Industrialization Collaborative Innovation Center,Hefei 230009,China;Steel Structural Technology Co.,Ltd.,China Tiesiju Civil Engineering Group,Hefei 230088,China)
出处
《合肥工业大学学报（自然科学版）》
CAS
北大核心
2018年第2期216-222,共7页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(51478158)
教育部新世纪优秀人才支持计划资助项目(NCET-12-0838)
关键词
圆钢管混凝土
Y形节点
极限承载力计算方法
失效模式
circular concrete filled steel tube
Y-joint
calculation method of ultimate bearing capacity
failure mode
