FINITE ELEMENT ANALYSIS FOR ULTIMATE CYCLIC BEHAVIOUR OF CONCRETE-FILLED TUBULAR STEEL PIERS WITH GRADE SM570 HIGH STRENGTH STEEL

• GOTO Yoshiaki

  名古屋工業大学 次世代耐震工学研究所

• EBISAWA Takemasa

  名古屋工業大学大学院 工学研究科社会工学専攻

• SASAKI Katsuhito

  名古屋工業大学大学院 工学研究科社会工学専攻

• KANDA Shinya

  首都高速道路株式会社 保全・交通部

• MATSUBARA Takuro

  首都高速道路株式会社 技術部

• TAJIMA Hitoshi

  (一財)首都高速道路株技術センター 技術部

Bibliographic Information

Other Title

• コンクリートを充填したSM570材による鋼製橋脚の繰り返し荷重下の終局挙動のFE解析

Abstract

 Steel piers with grade SM570 high strength steel are normally proportioned in design under a requirement that their seismic responses remain in the elastic range. This is chiefly because the available data about the plastic behavior of SM570 steel is too scarce to be utilized in the damage-controlled seismic design. Recently, a series of cyclic loading tests were conducted to examine the elastic-plastic ultimate behavior of concrete-filled tubular SM 570 steel piers, referred to as SM570 CFT piers. Herein, an advanced analysis method originally presented by authors for normal CFT piers was modified and calibrated based on the cyclic loading test results on the SM570 CFT pier specimens and a newly conducted cyclic loading test results on SM570 steel. This is to provide an analytical tool to assess the hysteretic ultimate behavior of the SM570 CFT piers. The proposed analysis method precisely considers the local buckling of steel plates, nonlinear behavior of confined concrete, and interface action between the steel plate and in-filled concrete. Therefore, the proposed method can be used to predict the seismic ultimate of the SM570 CFT piers in terms of their force-displacement relations and local plastic strains.

Journal

• Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

  Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 75 (2), 175-193, 2019

  Japan Society of Civil Engineers

Keywords

• CFT column
• high strength steel
• FE analysis
• experiment
• ductility
• low-cycle fatigue

Details

• CRID: 1390845713078709632
• NII Article ID: 130007665525
• DOI: 10.2208/jscejseee.75.175
• ISSN: 21854653
• Web Site: https://www.jstage.jst.go.jp/article/jscejseee/75/2/75_175/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed