西南林业大学学报2024，Vol.44Issue(9)：183-192,10.DOI:10.11929/j.swfu.202309064
圆竹组合内嵌钢管新型节点力学性能研究
Research on the Mechanical Properties of New Joints of Combination Embedded Steel Pipe for Round Bamboo
摘要
Abstract
Given the problems such as poor stability and easy splitting of bamboo holes in combination with embedded steel pipe joints of round bamboo filled with polyurethane materials between a steel pipe and a bam-boo wall.The stress and failure forms of combined embedded steel pipe joints with or without polyurethane filling were discussed through experimental analysis and numerical simulation.The influencing factors of joint bearing capacity are analyzed.The results show that filling polyurethane can improve the bearing capacity of the joint combination embedded steel pipe for round bamboo and the stress state of the bamboo around the bolt holes.Ac-cording to the stress-strain curve of the bamboo structure and bolt,considering the factors affecting safety and economy,when the diameter of round bamboo is 90mm,the bolt diameter is 12mm,the diameter of the steel pipe is 54mm,and the distance between the upper end and the bolt hole is 200mm,these are reasonable parameters for the joint.The research results can provide a reference for constructing large bamboo structures.关键词
圆竹结构/内嵌钢管/聚氨酯/数值模拟/力学性能Key words
round bamboo structure/embedded steel pipe/polyurethane/numerical modeling/physical prop-erty分类
建筑与水利引用本文复制引用
王灵芝,张萌,张庆文,董春雷..圆竹组合内嵌钢管新型节点力学性能研究[J].西南林业大学学报,2024,44(9):183-192,10.基金项目
2022年云南省中青年学术和技术带头人后备人才项目(202305AC160074)资助. （202305AC160074）
