Multi-scale model updating numerical hybrid simulation method for self-centering friction energy dissipation braced structure
WANG Tao1, LI Meng1, MENG Liyan1, XU Guoshan2, LIU Jiaxiu1, XIE Jingyi1
1. School of Civil Engineering, Heilongjiang University of Science & Technology, Harbin 150022, China;
2. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
Abstract：In order to improve the numerical simulation accuracy and engineering application capability of complexstructure model updating, a multi-scale numerical simulation method of self-centering energy dissipation braced structuremodel updating was proposed. Using OpenSees and MATLAB as computing platforms, online hybrid numericalsimulation was carried out for a two-story steel frame with self-centering energy dissipation bracing.The method usedcubature Kalman filter algorithm, at the same time, the parameters of giuffre-Menegotto-Pinto material constitutivemodel and self-centering energy dissipation braced member model were identified, and the overall structure numericalmodel was updated. The results showed that compared with the traditional numerical hybrid simulation method, themulti-scale model updating numerical hybrid simulation method can effectively improve the numerical model accuracy,the relative errors of energy dissipation, residual deformation, relative displacement of top layer and maximum interlayerdisplacement angle were significantly reduced, which verified the effectiveness of the hybrid numerical simulationmethod of multi-scale model updating.
王涛1，李勐1，孟丽岩1，许国山2，刘家秀1，谢婧怡1. 自复位摩擦耗能支撑结构多尺度模型更新数值混合模拟方法[J]. 振动与冲击, 2022, 41(17): 25-34.
WANG Tao1, LI Meng1, MENG Liyan1, XU Guoshan2, LIU Jiaxiu1, XIE Jingyi1. Multi-scale model updating numerical hybrid simulation method for self-centering friction energy dissipation braced structure. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(17): 25-34.
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