Japan Society of Civil Engineers 2023 Annual Meeting
Sep 14 - Sep 15, 2023Hiroshima University, Hiroshima Institute of Technology
Japan Society of Civil Engineers 2023 Annual Meeting
Sep 14 - Sep 15, 2023Hiroshima University, Hiroshima Institute of Technology
[CS2-12]A Multi-Layer Thermal Coupled Hysteretic Model for High Damping Rubber Bearings at Low Temperature
*Jie Shen1, Akira Igarashi1, Ji Dang2, Yuki Hamada3, Takehiko Himeno3, Hiroshi Shinmyo3, Nobuyuki Nabeshima4(1. Kyoto University, 2. Saitama University, 3. Kawakin Core-Tech Co., Ltd., 4. Chodai Co., Ltd.)
Keywords:
HDR bearing,Restoring force model,Multi-layer temperature,Thermal coupling,Self-heating effect
The high damping rubber (HDR) bearing is one of the most effective isolation devices for mitigating the seismic damage of structures. Temperature is a critical factor that affects the initial stiffness and strength of HDR bearing. In this paper, a multi-layer thermal coupled hysteresis model (T Bouc-Wen model) was proposed to predict the hysteretic behavior and temperature distribution of each rubber layer within the HDR bearing. It showed a good agreement between the numerical and experimental results in hysteretic behavior and multi-layer temperature distribution.