Development of 3-D segment model for the post-peak hysteretic analysis of CFT structures and its application to seismic design

• Kawanishi Naoki

  豊田工業高等専門学校 環境都市工学科

• Goto Yoshiaki

  名古屋工業大学 次世代耐震工学研究所

Bibliographic Information

Other Title

• コンクリート充填構造を対象とした3次元セグメントモデルの開発と耐震照査法
• コンクリート ジュウテン コウゾウ オ タイショウ ト シタ 3ジゲン セグメントモデル ノ カイハツ ト タイシン ショウサホウ

Abstract

It is essential in the seismic design of concrete-filled tubular (CFT) structures to develop some analysis method that can be used to evaluate their superior post-peak energy dissipation capacity appropriately. Herein, a practical 3D segment model is proposed to reflect the complicated post-peak interface action between the locally buckled steel tube and the confined in-filled concrete. The segment model includes 18 parameters identified by an optimization technique, referring to the in-plane hysteretic behavior of the CFT members. The segment model analysis for the CFT structures dramatically reduces the long computation time required by the conventional FE analysis. A new direct seismic safety check method with the segment model is proposed.

Journal

• Journal of Structural Engineering, A

  Journal of Structural Engineering, A 64A (0), 73-85, 2018

  Japan Society of Civil Engineers

Keywords

• CFT
• seismic design
• simplified analysis
• segment model

Details

• CRID: 1390001288151579392
• NII Article ID: 130007675726
• NII Book ID: AA12210243
• ISSN: 18816614
• ISSN: 1881820X
• DOI: 10.11532/structcivil.64a.73
• NDL BIB ID: 029057058
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029057058
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed