Design issues and application of high strength concrete for high rise buildings

Hideki Kimura, Yuji Ishikawa, Hiroto Takatsu, Hassane Ousalem

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

More than 500 high-rise RC buildings with height exceeding 60m (197feet) have been built since early 70's in Japan. The number of stories sometimes exceeds 50. Use of base isolation systems or vibration control devices in high-rise RC buildings has significantly increased since 1995 Kobe Earthquake. Ultra-high-strength materials have also been used in such buildings. The specified concrete strength of 150 MPa (21800psi) or higher is currently practiced and SD685 deformed bars of 685 MPa nominal yield strength are used as the main reinforcing bars. Such buildings are subjected to intensive large axial and lateral loads in case of sever earthquakes and strong winds, particularly at their lower stories where exterior columns experience varying high-axial loads shifting from compression to tension. Furthermore, as concrete strength increases, fire resistance decreases and cracking behavior of RC members changes which affects the structural performance. A lot of experimental studies with regards to such columns and subassemblies have been carried out to investigate their structural performance and to establish appropriate design methods. This paper presents some design issues related to the application of high-strength materials to RC columns or subassemblies. It also emphasizes recent research works and design methods for the application of ultra-high-strength concrete for high rise RC buildings.

本文言語English
ホスト出版物のタイトルReinforced Concrete Columns with High Strength Concrete and Steel Reinforcement 2012 - Held at the ACI Fall 2012 Convention
出版社American Concrete Institute
ページ1-19
ページ数19
293 SP
ISBN(印刷版)9781632663238
出版ステータスPublished - 2012 1 1
外部発表はい
イベントReinforced Concrete Columns with High Strength Concrete and Steel Reinforcement 2012 at the ACI Fall 2012 Convention - Toronto, ON, Canada
継続期間: 2012 10 212012 10 25

出版物シリーズ

名前American Concrete Institute, ACI Special Publication
番号293 SP
ISSN(印刷版)0193-2527

Other

OtherReinforced Concrete Columns with High Strength Concrete and Steel Reinforcement 2012 at the ACI Fall 2012 Convention
国/地域Canada
CityToronto, ON
Period12/10/2112/10/25

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設
  • 材料科学(全般)

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