Damping Properties of High-Rise Steel Buildings Based on Data of Vibration Tests and Earthquake Observations

Yokota, Haruhiko; Satake, Naoki; Okada, Keiichi

doi:10.3130/aijsx.453.0_77

Cited by 4 publications

(4 citation statements)

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“…The previous research reported that amplitude dependency was observed in the natural periods and damping coefficients 4,5) . Amplitude of a mode in each earthquake is calculated with the use of the identified natural periods and damping coefficients.…”

Section: Analysis Of Vibration Characteristicsmentioning

confidence: 94%

“…Yokota and others conducted research on regressive analysis of a relation between natural periods and damping coefficients in minute amplitude to relatively large amplitude from the measurement of slight motions, the vibration test, and the observation record of moderate earthquakes of about intensity 4 in connection with steel high-rise buildings with a period of two seconds and over 4) . Kashima and others identified vibration characteristics by analyzing the observation record of strong motions from 1990 to 2004 in 25 reinforced-concrete, steel-reinforced concrete, and steel buildings in the country, and showed a year-to-year change in amplitude dependency of natural periods and vibration characteristics 5) .…”

Section: Introductionmentioning

confidence: 99%

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Vibration Characteristics of High-Rise Steel Building in Shinjuku Skyscraper District Before and After the 2011 Off the Pacific Coast of Tohoku Earthquake

et al. 2015

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This paper presents and analyzes the identified vibration characteristics of steel high-rise building built at Shinjuku. The vibration characteristics, i.e.; natural periods, damping coefficients and participation functions, are identified from the measured acceleration during some earthquakes including the mainshock of the 2011 off the Pacific coast of Tohoku Earthquake. The curve-fitting method using the transfer function is applied in the identification. The change in natural period before and after the earthquake and the dependency on the modal amplitude are clear. The damping coefficients for the 1st and 2nd modes are found to be unexpectedly smaller than 0.02, that has been conventionally assumed in design of steel buildings.

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Section: Analysis Of Vibration Characteristicsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Vibration Characteristics of High-Rise Steel Building in Shinjuku Skyscraper District Before and After the 2011 Off the Pacific Coast of Tohoku Earthquake

et al. 2015

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“…show the observed records of the firstorder natural period and the first-order damping ratio of the building, respectively, as well as the regression line (black lines) shown in Ref. [30] and the AE20% or AE40% for regression line (red lines) that the author added. Since most of the data are inside the red lines, these values were used as the variation range.…”

Section: Funding Informationmentioning

confidence: 99%

“…In this example, the number of additional sample points of the proposed method is FIGURE A1. Relationship between building height and first-order natural period (modified from Figure 1 of Yokota et al 30 ) FIGURE A2. Relationship between the first-order natural frequency and first-order damping ratio (modified from Figure 9 of Yokota et al 30 )…”

Section: Funding Informationmentioning

confidence: 99%

Reliability‐based robust design optimization for building‐connecting inertial mass damper

Murase,

Takewaki

2023

Japan Architectural Review

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This paper proposes an accurate and efficient reliability evaluation method for robust design optimization using a probabilistic approach. First, the validity of this method is verified using two benchmark functions. This method is then applied to the robust design optimization problem of building‐connecting damper parameters, and the effect of robust design is verified. The variation in the natural period and structural damping ratio of buildings is considered, and the criteria satisfaction rate (CSR) are directly evaluated using the response value calculated by time history response analysis.

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Evaluation of vibration properties of high-rise steel buildings using data of vibration tests and earthquake observations

Satake

Yokota

1996

Journal of Wind Engineering and Industrial Aerodynamics

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Damping Properties of High-Rise Steel Buildings Based on Data of Vibration Tests and Earthquake Observations

Cited by 4 publications

References 0 publications

Vibration Characteristics of High-Rise Steel Building in Shinjuku Skyscraper District Before and After the 2011 Off the Pacific Coast of Tohoku Earthquake

Vibration Characteristics of High-Rise Steel Building in Shinjuku Skyscraper District Before and After the 2011 Off the Pacific Coast of Tohoku Earthquake

Reliability‐based robust design optimization for building‐connecting inertial mass damper

Evaluation of vibration properties of high-rise steel buildings using data of vibration tests and earthquake observations

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