Development of an Improved Deformation History Integral Type Hysteresis Model for High-Damping Rubber Bearings

Mori, Takahiro; Takeuchi, Sadamitsu; Murota, Nobuo

doi:10.1007/978-3-031-21187-4_14

Cited by 1 publication

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Because the behavior of HDR is more complex than that of other RBs, researchers have proposed many hysteresis models 1–3 . Some authors have proposed a hysteresis model based on the DHI‐type elastic–plastic model (the DHI model hereinafter 4–8 ) for HDRs. The features of the DHI model are as follows: The DHI model can reflect the creep behavior under strong winds although it is an elastic–plastic model 9 …”

Section: Introductionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract