【摘要】 通过对具有不同耗能梁段长度的D型偏心支撑钢框架的滞回性能及耗能梁段耗能性能的非线性有限元分析,表明耗能梁段的长度对偏心支撑钢框架的侧向刚度、延性和耗能能力有较大影响。随着耗能梁段长度的增加,D型偏心支撑钢框架的强度、刚度、延性和耗能性能均产生了不同程度的退减现象;耗能梁段越短,其塑性变形越大,进而导致耗能梁段过早塑性破坏的可能性增大。根据有限元模拟结果提出了对耗能梁段长度的设计建议。更多还原

【Abstract】 I was performed nonlinear finite element analysis for D shape eccentrically braced steel frames on different length of link beam.Analysis indicates that Steel frame link beam length has great influence on the eccentrically braced steel frame of the lateral rigidity,ductility and energy-dissipation capacity of eccentrically braced.The strength,rigidity,ductility and energy-dissipation performance of D shape eccentrically braced steel frames deteriorate differently with the length increase of link beam.The shorter the link beam is,the larger plastic deformation of it.So it makes plastic collapse easily,while a long link beam has a poor cyclic behavior.At the end of this paper,suggestions on design of the length of link beam based on finite element simulation results are presented.更多还原