A nonlinear model for multilayered rubber isolators based on a co-rotational formulation

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• 作者：N. Maureira^a ; ^b ; ^{nmaureira@ucsc.cl} ; J. de la Llera ; Ph.D^b ; ^{jcllera@ing.puc.cl} ; C. Oyarzo ; Ph.D^a ; ^{coyarzov@ucsc.cl} ; S. Miranda^b ; ^c ; ^{smirand@uc.cl}
• 关键词：Multilayer rubber isolator ; Non-linear behavior ; Axial-lateral coupling ; Tension and compression buckling ; Time-history analysis
• 刊名：Engineering Structures
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：131
• 期：Complete
• 页码：1-13
• 全文大小：1549 K
• 卷排序：131

文摘

The model captures the axial and lateral coupling in tension and compression. It accounts for buckling of the isolator under axial and lateral deformations. Buckling loads are larger in tension than in compression. Satisfactory accuracy of the model was obtained with FEM and experimental data. The model can be used in dynamic analysis and include inelastic behavior of rubber.