摘要
为实现纤维增强复材空间桁架的整体结构耐腐蚀,拟采用高强不锈钢-高强铝合金作为球节点关键承载部件——高强螺栓的材料。对使用高强不锈钢螺栓和高强铝合金螺栓的铝合金球节点的抗弯性能进行试验研究,根据高强螺栓材料、套筒承压面积的不同,设计制备了4组试件,对比分析了不同参数情况下节点的受弯承载特性及破坏模式,得到了节点的弯矩-转角曲线、初始抗弯刚度、极限抗弯承载力等性能指标。根据现有装配式节点分类标准,判定表明铝合金螺栓球节点在纤维增强复材空间结构中应作为半刚性节点考虑。
In order to realize the corrosion resistance of composite-aluminum space truss structure,the aluminum-alloy bolt-ball joint system is used.Considering that the high-strength bolts are the key points of joints,this paper adopt high-strength stainless steel-aluminum alloy as the materials of high-strength bolts,and study the flexural behavior of FRP-aluminum-alloy bolt-ball joint.According to the material of bolts and bearing area of sleeves,the joints are divided into four sections.Through the experimental,it studied the flexural bearing characteristics and failure mode under different parameters,got the moment-rotation curves,initial bending stiffness and ultimate tensile strength and so on.In the end,based on the existing classification system for the joints,it predicated that the aluminum-alloy bolt-ball joint can be used in the composite-aluminum space truss structure.
作者
王兴忠
李峰
朱锐杰
WANG Xingzhong;LI Feng;ZHU Ruijie(College of field Engineering,Army Engineering University of PLA,Nanjing 210007,China)
出处
《工业建筑》
CSCD
北大核心
2020年第5期121-125,170,共6页
Industrial Construction
基金
国家重点研发计划项目(2017YFC0703008)。
