Strain and Energy Ratio Based Damage Model of Steel Structures
XU Longhe1, YANG Dongling1, LI Zhongxian2
1. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China; 2. School of Civil Engineering, Tianjin University, Tianjin 300072, China
Abstract：Damage model is an important tool to evaluate quantitatively residual strength of a structure after seismic excitations. From the point of view material, a damage model based on equivalent plastic strain and energy ratio is proposed in this paper, which considers structural behavior under triaxial stress, and it can be used to do the nonlinear analysis of 3-D structures under earthquakes. A nine-story benchmark model structure is built and the damage model is used to evaluate the collapse process of steel frame quantitatively, the results indicate that this damage model can evaluate the process of damage of vertical members and structure effectively.
徐龙河;杨冬玲;李忠献. 基于应变和比能双控的钢结构损伤模型[J]. , 2011, 30(7): 218-222.
XU Longhe;YANG Dongling;LI Zhongxian. Strain and Energy Ratio Based Damage Model of Steel Structures. , 2011, 30(7): 218-222.
2011, Vol. 30 
