摘要
通过对外加强环进行切割,设计了4个不同外加强环式的冷弯方钢管柱-H型钢梁节点试件,对其进行水平低周反复试验和ABAQUS有限元分析。探讨外加强环形式对节点破坏形态、承载力、延性、耗能性能及应变分布的影响。研究表明:4个试件均在梁端形成塑性铰;梁柱节点域及外加强环未出现明显变形,表现出良好的抗震性能;外加强环边角切割过的节点,承载力没有降低,而延性、耗能能力有一定的提升,且节省了材料。
By means of cutting outer stiffening ring,a total of four H-shaped beam to cold-bending square steel tubular column with outer stiffening ring joints were designed,and the quasi-static test and ABAQUS finite element analysis were carried out.The effects of the outer stiffening ring on the failure mode,bearing capacity,ductility,energy dissipation capacity and strain distribution were explored.The results showed that all the specimens had formed plastic hinges at the beam ends.Meanwhile,there was no obvious deformation could be found on the columns,joint panel and outer stiffening rings,and it showed good seismic behavior.The bearing capacity of the joints of which the outer stiffening rings were cut did not decreased,while the ductility and energy dissipation capacity increased,and the material was saved.
出处
《工业建筑》
CSCD
北大核心
2017年第11期169-174,共6页
Industrial Construction
基金
国家自然科学基金资助项目(51578342)
中国博士后科学基金资助项目(2015M582418)
关键词
外加强环型节点
水平低周反复试验
外加强环形式
有限元分析
抗震性能
outer stiffening ring reinforced joint
quasi-static test
form of outer stiffening ring
finite element analysis
seismic behavior
