Identification of the Frictional Coefficient of the Metal-Touched Type of Base-Isolator and Verification of Its Response Reduction

Nishimura, Harumi; Abe, Shoko; Tachibana, Eizaburo

doi:10.3130/aijs.71.29_1

Nihon Kenchiku Gakkai Kozokei Ronbunshu

2006

DOI: 10.3130/aijs.71.29_1

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Identification of the Frictional Coefficient of the Metal-Touched Type of Base-Isolator and Verification of Its Response Reduction

Harumi Nishimura¹,

Shoko Abe²,

Eizaburo Tachibana³

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Cited by 4 publications

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すべり系支承の力学特性における速度依存性と温度依存性を同時に評価するための加振実験および分析手法の提案

ISHII,

KIKUCHI,

IRISAWA

et al. 2023

Nihon Kenchiku Gakkai Kozokei Ronbunshu

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Elastic sliding bearings are one of the most common seismic isolators used in Japan. The bearing s hysteresis loop is typically bilinear in shape, and the mechanical characteristics are mostly determined by the friction coefficient. The dependencies of velocity and temperature on the friction coefficient should be considered to reproduce a realistic dynamic behavior for earthquake response analysis. To evaluate these dependencies of the elastic sliding bearings separately, a novel loading test plan with varying speed and temperature is developed and conducted. A numerical analysis method to distinguish two dependencies is also presented.

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すべり系支承の力学特性における速度依存性と温度依存性を同時に評価するための加振実験および分析手法の提案

ISHII,

KIKUCHI,

IRISAWA

et al. 2023

Nihon Kenchiku Gakkai Kozokei Ronbunshu

View full text Add to dashboard Cite

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Verification of the Response Reduction of Sliding Base-Isolator by Experimental Test and Numerical Analysis

Ikawa¹,

Yoneda²,

Tachibana³

et al. 2008

AIJ J. Technol. Des.

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The sliding bearings are used for lightweight structures instead of the laminated rubber bearings. In many studies, the frictional coefficients of sliding bearings are assumed as less than 0.1. However, even if frictional coefficient is about 0.2, it may be effective for a big earthquake (max. acceleration 200cm/s 2). In this study, the effectiveness of sliding bearings made of surface-treated steel plates is examined. The reduction effect of response is proved by shaking table test, and the frictional coefficients are identified analytically.

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Verification of the Response Reduction of Sliding Base-Isolator by Experimental Test and Numerical Analysis (Part Ii)

IKAWA¹,

YONEDA²,

TACHIBANA³

et al. 2009

AIJ J. Technol. Des.

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The sliding bearings are used for lightweight structures instead of the laminated rubber bearings. In many studies, the frictional coefficients of sliding bearings are assumed as less than 0.1. However, even if frictional coefficient is about 0.2, it may be effective for a big earthquake(max. acceleration > 200cm/s 2). In this study, the effectiveness of sliding bearings made of surface-treated steel plates is examined under different conditions with an eccentricity, a pressure, an input wave and others. The reduction effect of response is proved by shaking table test, and the frictional coefficients are identified analytically.

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Identification of the Frictional Coefficient of the Metal-Touched Type of Base-Isolator and Verification of Its Response Reduction

Cited by 4 publications

References 0 publications

すべり系支承の力学特性における速度依存性と温度依存性を同時に評価するための加振実験および分析手法の提案

すべり系支承の力学特性における速度依存性と温度依存性を同時に評価するための加振実験および分析手法の提案

Verification of the Response Reduction of Sliding Base-Isolator by Experimental Test and Numerical Analysis

Verification of the Response Reduction of Sliding Base-Isolator by Experimental Test and Numerical Analysis (Part Ii)

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