【作者】 殷占忠； 任亚歌； 陈伟； 梁亚雄；

【Author】 YIN Zhan-zhong;REN Yage;CHENWei;LIANG Ya-xiong;Key Laboratory of Disaster Prevention and Mitigation in Civil Engineering of Gansu Province, Lanzhou University of Technology;Western Engineering Research Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou University of Technology;

【机构】 兰州理工大学甘肃土木工程防灾减灾重点实验室； 兰州理工大学西部土木工程防灾减灾教育部工程研究中心；

【摘要】 带可替换耗能梁段的偏心支撑钢框架结构与传统的偏心支撑钢框架结构相比,修复替换既方便又经济,目前国内外关于这方面的研究很少。运用ABAQUS有限元软件对8根参数不同的可替换耗能梁段进行了单向加载和循环往复加载分析,结果表明:加劲肋间距对可替换耗能梁段承载力的影响并不大,可替换耗能梁段长度的增大会引起承载力的减小;单向荷载作用下,可替换耗能梁段的位移延性系数和转角延性系数均较大,具有良好的延性;循环荷载作用下,可替换耗能梁段的滞回曲线饱满,没有明显的捏缩现象出现,具有较好的耗能性能。更多还原

【Abstract】 The repair of Eccentrically Braced Steel Frames with replaceable link is convenient and economy compared with traditional Eccentrically Braced Steel Frames, the research on replaceable link is little at home and abroad, so it is highly significant. It was performed finite element analysis ABAQUS for the one-way loading and cycle loading on eight replaceable link beams with different parameters, analysis indicates that the ribbed stiffener with different distance has small influence on bearing capacity of replaceable link beam, the increase of replaceable link beam length causes the decrease of the bearing capacity; Under monotonic load, the displacement ductility coefficients of all replaceable link beams and the angle ductility coefficients are good, they are all perform well in ductility; Under cyclic load, the hysteresis curves of all replaceable links are plumper and have no significant pinch phenomenon. It shows they have good performance in energy dissipation.更多还原