湖南大学学报（自然科学版）2026，Vol.53Issue(3)：35-43,9.DOI:10.16339/j.cnki.hdxbzkb.2026022
摩擦型腹板自复位梁柱节点初始转动刚度研究
Research on initial rotational stiffness of self-centering beam-column joints with friction web
摘要
Abstract
To accurately consider the initial rotational stiffness of self-centering joints and determine the contribution of friction between the connectors to the initial rotational stiffness in structural analysis,a friction web self-centering beam-column ductile joint was designed.The joint is composed of friction web,prestressed cables,upper and lower dog-bone flange connection plates,brass friction plates and high-strength friction bolts.Two different sizes of dog-bone flange connection plates and different prestressed cables were designed,and the bending moment-rotation angle of the joint,along with the relevant material data of each component,was obtained from the test.Then,a calculation formula of initial rotational stiffness is obtained based on the component method defined in EC3.To represent the friction of the friction web as an equivalent spring in the component method,the Iwan model is introduced to describe the mechanical behavior of friction.Comparison between the test results and the calculated values shows good agreement,indicating that the contribution of the friction web to the rotational stiffness cannot be ignored.关键词
自复位节点/初始转动刚度/摩擦腹板/组件法/Iwan模型Key words
self-centering joints/initial rotational stiffness/friction web/component method/Iwan model分类
建筑与水利引用本文复制引用
周凌宇,许磊,陈浩,阳凡,王其良,方蛟鹏,贺学军..摩擦型腹板自复位梁柱节点初始转动刚度研究[J].湖南大学学报（自然科学版）,2026,53(3):35-43,9.基金项目
国家自然科学基金资助项目(51978662),National Natural Science Foundation of China(51978662) （51978662）
