摘要
本文用有限元法进行钢框架非线性分析,几种常见方法进行了比较后,提出了采用割线刚度矩阵对多层钢框架进行非线性分析的全量法,分析了塑性区沿单元截面高度及长度方向的扩展,采用应变判断屈服的概念,并编制了有限元程序,计算结果令人满意。
In comparison with several conventional methods on non-linear frame analysis,ttic paper put forward a non-linear analysis method of multi-storey using secant module of stiffness.In analysis,expansion of plastic zone both in depth of section and over length of members were considered.Yielding was judged by growth in strain.A FEM analysis program was compiled which gives satisfied results.
出处
《钢结构》
1994年第4期248-252,共5页
Steel Construction
关键词
钢框架
弹塑性
非线性
有限元
Steel frame,Elasto-plastic,Non-linear,Finite clement
