摘要
采用通用有限元软件ABAQUS通过有限元微观模型与宏观模型之间的界面连接方法分析研究,在验证不同尺度模型间的变形协调连接方法的可行性基础上,对一个复杂高层建筑结构植入钢节点微观模型进行弹塑性动力时程分析,多尺度模型和宏观模型计算结果的对比分析表明,多尺度节点对相邻节点位移的影响较小,对相邻杆件内力存在一定影响。多尺度计算能够在并不显著增加计算时间的情况下,更为详细地反映复杂受力构件在整体结构中的抗震工作机理。
A methodology of connecting microscopic finite element model to macro model is proposed in a general finite element software ABAQUS. This methodology meets the deformation compatibility between different-scale models, which is verified by an example. A multi-scale model of a steel joint connection is used in an elasto-plastic time history analysis of a complex high-rise building. The results show that the multi-scale calculation of the joint connection only has a little effect on the adjacent components except for the internal force. It can simulate the boundary conditions of components under complex loads and seismic excitations without more time consumption.
出处
《结构工程师》
北大核心
2014年第2期62-66,共5页
Structural Engineers
关键词
多尺度计算
界面连接
弹塑性时程分析
抗震性能
multi-scale calculation, interface connection, elasto-plastic time history analysis, seismic behavior
