Optimal stiffness distribution of mid-storeyisolated buildings considering storey drift and floor acceleration response

M. Kohiyama, K. Takano

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

This paper formulates a response prediction formula based on complex modal superposition and frequency response functions of single-degree-of-freedom systems for both storey drift and floor acceleration of a mid-storey-isolated building under the assumption of white noise input. This study verifies that the proposed formula can estimate the seismic response of a building accurately, even if a system includes the overdamped mode, by comparing the same with the results of a time-history analysis. To support the structural design of a midstorey-isolated building, the proposed formula is applied to an optimal design problem, which considers the objective function of acceleration response in a superstructure and constraints on storey drifts. A genetic algorithm is employed to obtain the optimal stiffness distribution and damping coefficient of the isolation layer. This study confirms that the acceleration response of the optimal design is successfully reduced, with other responses remaining within acceptable ranges.

本文言語English
ホスト出版物のタイトルEarthquake Resistant Engineering Structures IX
ページ191-202
ページ数12
DOI
出版ステータスPublished - 2013 11 22
イベント9th World Conference on Earthquake Resistant Engineering Structures, ERES 2013 - A Coruna, Spain
継続期間: 2013 7 82013 7 10

出版物シリーズ

名前WIT Transactions on the Built Environment
132
ISSN(印刷版)1743-3509

Other

Other9th World Conference on Earthquake Resistant Engineering Structures, ERES 2013
国/地域Spain
CityA Coruna
Period13/7/813/7/10

ASJC Scopus subject areas

  • 建築
  • 土木構造工学
  • 建築および建設
  • 自動車工学
  • 安全性、リスク、信頼性、品質管理
  • 人文科学(その他)
  • 輸送
  • 安全研究
  • コンピュータ サイエンスの応用

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