梁柱线刚度比对方钢管混凝土-钢梁框架抗震性能影响分析  

Analysis of the Effect of Beam-to-Column Stiffness Ratio on the Seismic Performance of Square Concrete-filled Steel Tube and Steel Beam Frames

作　　者：封伟 王中强 FENG Wei;WANG Zhongqiang

机构地区：[1]长沙理工大学土木工程学院,湖南长沙410114

出　　处：《重庆建筑》2025年第1期40-43,共4页Chongqing Architecture

摘　　要：为分析梁柱线刚度比对方钢管混凝土柱-钢梁抗震性能的影响,利用ABAQUS及Python脚本建立了8个相同材料不同梁柱线刚度比的有限元模型,分析了梁柱线刚度比对模型极限承载力、滞回耗能及延性系数的影响。结果表明:钢管混凝土柱-钢梁结构具有良好的耗能能力。随着梁柱线刚度比的提升,该结构的承载能力会有所提高,但当提高到一定程度时,承载能力会下降。建议方钢管混凝土-钢梁框架结构的梁柱线刚度比取值不大于0.355。To analyze the impact of beam-to-column stiffness ratio on the seismic performance of square concrete-filled steel tube columns with steel beams,eight finite element models with identical materials but different beam-to-column stiffness ratios were established using ABAQUS and Python scripts.The study investigated the influence of the stiffness ratio on the ultimate load-bearing capacity,hysteretic energy dissipation,and ductility coefficient of the models.The results indicate that concrete-filled steel tube columns with steel beams exhibit excellent energy dissipation capabilities.As the beam-to-column stiffness ratio increases,the load-bearing capacity of the structure initially improves but decreases beyond a certain threshold.It is recommended that the beam-to-column stiffness ratio for square concrete-filled steel tube and steel beam frames should not exceed 0.355.

关 键 词：方钢管混凝土 滞回曲线 参数化分析 梁柱线刚度比 有限元分析 

分 类 号：U448.213[建筑科学—桥梁与隧道工程]