论文部分内容阅读
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。
Eccentric support steel frame structure with replaceable energy dissipation beam section Compared with the traditional eccentric support steel frame structure, it is convenient and economical to repair and replace. At present, there are few researches in this field at home and abroad. The ABAQUS finite element software was used to analyze the unidirectional loading and cyclic loading of eight different energy dissipation beam sections with different parameters. The results show that the effect of stiffener spacing on the bearing capacity of the displaceable beam segment is not significant, The displacement ductility coefficient and the corner ductility coefficient of the replaceable energy dissipation beam section are both larger and have good ductility under the unidirectional load. Under cyclic loading, Hysteresis curve of replaceable energy beam section is full, there is no obvious phenomenon of pinch and shrinkage, and has better energy dissipation performance.