往复荷载作用下型钢构件耗能特性分析  

Analysis of Energy Dissipation Characteristics of Steel Members Under Cyclic Loading

作　　者：李子扬[1] 邢可江 韩宝莉 朱子轩 谭嘉宁 LI Ziyang;XING Kejiang;HAN Baoli;ZHU Zixuan;TAN Jianing(Shandong Electric Power Engineering Consulting Institute Corporation,Jinan 250010,China;State Grid Shandong Electric Power Company Construction Company,Jinan 250010,China;State Grid Corporation of China,Jinan 250010,China;Jinan Heyuan Engineering Consulting Co.,Ltd.,Jinan 250010,China)

机构地区：[1]山东电力工程咨询院有限公司,山东济南250010 [2]国网山东省电力公司建设公司,山东济南250010 [3]国家电网有限公司技术学院分公司,山东济南250010 [4]济南和源工程咨询有限公司,山东济南250010

出　　处：《电工技术》2025年第5期44-47,共4页Electric Engineering

基　　金：国家自然科学基金项目(编号51307121)。

摘　　要：选取方形、H形和C形这3种截面形式的形钢构件,考虑截面形式、长细比、两端约束等条件,模拟分析了循环荷载下钢构件的力-位移曲线和单圈耗能量等参数,对比具有不同属性钢构件的屈曲性能和滞回特性。结果表明,截面形式对构件的耗能水平影响最大,H形截面构件滞回性能最好,C形截面构件其次,方形截面构件最差;构件的耗能水平受长细比影响较大,构件的单圈耗能水平随长细比的增大逐渐减小;约束条件对构件耗能水平影响最小,端部固-固约束和固-铰约束条件下构件的耗能量相近。In this paper,three kinds of shaped steel components with square,H-shape,and C-shape cross-sections are selected.The force displacement curves and single-turn energy consumption of steel components under cyclic loading are simulated and analysed considering the conditions of the cross-section form,slenderness ratio,and constraints at both ends.The buckling and hysteresis characteristics of the steel components with different attributes are compared.The results indicate that the cross-section form has significant impacts on the energy dissipation of steel components.Among the shapes studied,H-shaped steel components exhibit the best hysteresis performance,followed by C-shaped steel components,with square steel components showing the lowest performance.The slenderness ratio also plays a crucial role in energy dissipation,with a decrease in one-turn energy dissipation as the slenderness ratio increases.Additionally,the type of constraint has the least impact on energy dissipation,as the energy dissipation levels are similar for fixed and hinged constraints.The constraint conditions have the least effect on the energy dissipation level of the members.

关 键 词：钢构件 滞回 有限元分析 屈曲 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]