An Experimental and Analytical Study on Ultimate Properties of Seismic Rubber Bearings Under Horizontal Biaxial Loading

Kato, Hideaki; Mori, Tatsuya; Murota, Nobuo; Suzuki, Shigenobu; Minewaki, Shigeo; Yamamoto, Masao; Yoneda, Harumi; Higashino, Masahiko

doi:10.3130/aijt.16.167

Cited by 10 publications

(3 citation statements)

References 2 publications

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“…In this study, the hysteresis model considers the performance change for a one-dimensional DHI model. For reference, the DHI model expressed as Equations ( 1)-( 3), (11), and (12) for two horizontal dimensions is shown in Appendix B. In addition, for FEA, the DHI model expressed as Equations ( 1)-( 3), (11), and (12) to six degrees of freedom, as defined by the relationship between the stress tensor and strain tensor, is shown in Appendix C.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

“…D. The DHI model accurately reflects the complex behavior of HDR for a wide range of shear strains, including biaxial horizontal loading. 3,12 Items A, B, and C are noteworthy as they are absent in other hysteresis models. Hence, using the DHI model is advantageous, as shown by its features above.…”

Section: Introductionmentioning

confidence: 99%

“…DHI model is originally developed for finite element analysis (FEA) 10,11 . Therefore, the same parameters can be used for both FEA and hysteresis models. The calculation algorithm of the DHI model is simple because “if” statements and “do” loops are not required for the plastic elements. The DHI model accurately reflects the complex behavior of HDR for a wide range of shear strains, including biaxial horizontal loading 3,12 …”

Section: Introductionmentioning

confidence: 99%

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Proposal of deformation history integral‐type hysteresis model considering performance change of high‐damping rubber bearings and verification using substructure real‐time online testing system for seismically isolated structure

Mori

Takeuchi

MARUYAMA

et al. 2023

Japan Architectural Review

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A deformation history integral (DHI)‐type hysteresis model is an elastic–plastic model that was originally developed for high‐damping rubber bearings (HDRs). The model can show the complex characteristics of HDRs. However, the model cannot accurately consider performance changes due to production variation, temperature dependence, repeated loading dependence, etc. Herein, an improved DHI model that can accurately reflect performance changes is proposed. The main contributions of this study are as follows: (1) To reflect performance change, the DHI model is improved by defining material parameters as a function of the performance change ratios. (2) To accurately reflect repeated loading dependence, including the scragging effect, the DHI model is improved by defining the performance change ratios as a function of the cumulative energy per unit volume. The authors have previously developed a substructure real‐time online testing system. The system performs a time‐history response analysis via analysis and testing systems. To verify the accuracy of the proposed model, a time‐history response analysis is performed using the proposed model, and the results of the substructure real‐time online testing system are compared. The results show that the proposed new hysteresis model can predict the complex behavior of HDRs more accurately than existing analysis models.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Proposal of deformation history integral‐type hysteresis model considering performance change of high‐damping rubber bearings and verification using substructure real‐time online testing system for seismically isolated structure

Mori

Takeuchi

MARUYAMA

et al. 2023

Japan Architectural Review

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A Hysteresis Model of High-Damping Rubber Bearings Using an Integral Type Deformation History Constitutive Law

Kato¹,

Mori²,

Murota³

et al. 2011

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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A new hysteresis model for high-damping rubber bearings is proposed, which has been developed based on an elasto-plastic, integral type deformation history constitutive law. One of the characteristics of the proposed model is the applicability of the same material parameters as the proposed model to finite element method analyses. Firstly, we derive the horizontal biaxial hysteresis model from the elasto-plastic constitutive law. Next, we compare the results of numerical analyses using the proposed hysteresis model with experimental results for tests of high-damping rubber bearings subjected to horizontal biaxial loading, and verify the validity of the proposed model. Lastly, we perform finite element method analyses and numerical analyses using a multi-shear springs model, and the results from each of these cases are compared with results given by the proposed model.

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Fem Analysis of the Laminated Rubber Bearings Under Tensile and Large Horizontal Deformation Using the Hyperelastic Constitutive Law With Stiffness Degradation Due to Generation of Voids in Rubber

Mori¹,

Murota²,

Kikuchi³

2011

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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An Experimental and Analytical Study on Ultimate Properties of Seismic Rubber Bearings Under Horizontal Biaxial Loading

Cited by 10 publications

References 2 publications

Proposal of deformation history integral‐type hysteresis model considering performance change of high‐damping rubber bearings and verification using substructure real‐time online testing system for seismically isolated structure

Proposal of deformation history integral‐type hysteresis model considering performance change of high‐damping rubber bearings and verification using substructure real‐time online testing system for seismically isolated structure

A Hysteresis Model of High-Damping Rubber Bearings Using an Integral Type Deformation History Constitutive Law

Fem Analysis of the Laminated Rubber Bearings Under Tensile and Large Horizontal Deformation Using the Hyperelastic Constitutive Law With Stiffness Degradation Due to Generation of Voids in Rubber

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