摘要
在不考虑楼板影响的情况下,采用现有的双线性模型、多项式模型、三参数幂函数模型、欧洲规范EC 3模型的M-θ(弯矩-转角)曲线对钢结构外伸端板半刚性梁柱节点进行曲线拟合,并进行有限元分析。由于考虑了楼板的影响后,钢结构外伸端板半刚性梁柱节点的M-θ曲线与现有的半刚性节点M-θ模型存在较大的误差,说明现有的半刚性节点M-θ模型已经不适用于目前的实际情况。针对实际情况,考虑了楼板的影响,进行了带楼板的钢结构半刚性梁柱节点的有限元分析,并基于欧洲规范EC 3提出了考虑楼板影响的弯矩-转角模型。研究结果表明,所提出的考虑楼板影响的钢结构半刚性连接节点弯矩-转角分析模型较好地反映了半刚性连接节点弯矩-转角的实际性能,可供钢结构设计时参考。
The curve fitting for M-θcurves of semi-rigid beam-column joints of extended end- plate steel structure was conducted through the existing bilinear model,polynomial model,three parameter power function model and EC 3 model without the consideration of floor effect,and finite element analysis was also carried out.Considering floor effect,there are some considerable errors in semi-rigid beam-column joints of extended endplate steel structure and the existing semi-rigid joints model,which shows that the existing semi-rigid joints model are not suitable for the reality conditions.According to the reality conditions,semi-rigid beam-column joints for steel structure with floor effect were analyzed considering the effect of the floor,and a new momentrotation model was proposed base on Europe standard.The results showed that the proposed analysis model of semi-rigid beam-column joints for steel structure with floor effect can reflect the reality performance of semi-rigid beam-column joints,it can provide references for steel structure design.
出处
《钢结构》
北大核心
2015年第9期23-26,55,共5页
Steel Construction
基金
广东省教育厅科技创新项目(2012-KJCX-0084)
住宅和城乡建设部科技计划项目(2012-k2-8)
浙江东南网架股份有限公司项目(SM-0716-01)
