建筑钢结构进展2023，Vol.25Issue(12)：64-72,9.DOI:10.13969/j.cnki.cn31-1893.2023.12.007
高温下装配式新型球柱节点受弯性能研究
Research on the Bending Behavior of Fabricated New-Type Ball-Cylinder Joint at High Temperature
摘要
Abstract
The high temperature performance of joints is closely related to the fire safety issues of spatial structures.A reliable numerical model based on non-linear finite element software ABAQUS was established to investigate the flexural bearing performance of fabricated new-type ball-cylinder joints at high temperatures.In the study,the effects of temperature,component geometric dimensions,and load types were considered.Through failure mode and mechanism analysis,a stress analysis model was established,and a formula for the bending bearing capacity of fabricated new-type ball-cylinder joint at high temperatures was derived.The results show that:(1)With the increase of temperature,the bending bearing capacity of fabricated new-type ball-cylinder joints decreases to varying degrees,and there are significant differences in the failure modes and bearing capacity calculation methods of the joints under positive and negative bending moments;(2)The calculation formula for prefabricated new-type ball-cylinder joints is able to effectively assess the high temperature capacity of the joints,which can meet the needs of the project.关键词
高温/装配式新型球柱节点/有限元分析/受弯性能Key words
high temperature/fabricated new-type ball-cylinder joint/finite element analysis/bending behavior分类
建筑与水利引用本文复制引用
陈安阳,阎亮,黄健,许曙光,刘锋,李丽娟..高温下装配式新型球柱节点受弯性能研究[J].建筑钢结构进展,2023,25(12):64-72,9.基金项目
国家自然科学基金(12072080),广东省企业科技特派员专项(GDKTP2021028200),汕头职业技术学院科研重点课题(SZK2022Z01) （12072080）
