建筑钢结构进展2025，Vol.27Issue(9)：52-63,12.DOI:10.13969/j.jzgjgjz.20240410001
输电线路钢管-插板节点面外抗弯性能试验研究
Experimental Study on Out-of-Plane Flexural Behavior of Steel Tube-Plug Joints for Transmission Lines
摘要
Abstract
In order to study the out-of-plane flexural behavior performance of typical joints of C-type gusset plate connection of UHV transmission steel pipe tower,10 full-scale K-type joints were tested in this paper.The effects of gusset plate thickness,joint plate thickness and bolt number on the out-of-plane flexural behavior performance of joints were studied.On this basis,the finite element model of the joint was established and the parametric analysis was carried out.The effects of the thickness of the gusset plate and the joint plate,the number and the diameter of bolts,the diameter-thickness ratio of the main pipe,the diameter-thickness ratio of the inclined pipe and the steel strength on the out-of-plane flexural behavior of the joint were investigated.The formula for calculating the out-of-plane flexural behavior of such joints was proposed.The results show that:In all test conditions,the maximum increase in the initial rotational stiffness of the joints caused by the thickness of the gusset plate and the joint plate is 40.28%,and the maximum increase in the initial rotational stiffness of the joints caused by the number of bolts is 34.30%.The influence of steel strength on the initial rotational stiffness of the joint increases linearly first and then tends to be gentle.The diameter-thickness ratio of the main pipe has little effect on the initial rotational stiffness of the joint,while the diameter-thickness ratio of the inclined pipe and the width-thickness ratio of the joint plate have a significant effect on the out-of-plane flexural behavior of the joint.Based on the experimental and finite element simulation results,the calculation formula of out-of-plane flexural behavior of joints has good applicability,which can provide reference for practical engineering.关键词
钢管塔/K形节点/足尺试验/抗弯性能/参数分析/初始转动刚度Key words
steel pipe tower/K-joint/full-scale test/flexural behavior performance/parametric analysis/initial rotational stiffness分类
信息技术与安全科学引用本文复制引用
陈志辉,付诗禧,黄雄辉,徐彬,冯衡,刘红军..输电线路钢管-插板节点面外抗弯性能试验研究[J].建筑钢结构进展,2025,27(9):52-63,12.基金项目
中国南方电网有限责任公司2023年第一批定向科技项目(CGYKJXM20220236) （CGYKJXM20220236）
