A STRESS-STRAIN MODEL FOR UNLOADING AND RELOADING OF CONCRETE CONFINED BY TIE REINFORCEMENT

• SAKAI Jun-ichi

  JAPAN SOCIETY OF CIVIL ENGINEERS

• KAWASHIMA Kazuhiko

  JAPAN SOCIETY OF CIVIL ENGINEERS

• SHOJI Gaku

  JAPAN SOCIETY OF CIVIL ENGINEERS

Bibliographic Information

Other Title

• 横拘束されたコンクリートの除荷および再載荷過程における応力度～ひずみ関係の定式化
• ヨコ コウソク サレタ コンクリート ノ ジョカ オヨビ サイサイカ カテイ ニ オケル オウリョクド ヒズミ カンケイ ノ テイシキカ

Abstract

This paper presents a series of uniaxial compressive loading tests on concrete cylinders confined by tie reinforcements in order to develop an unloading and reloading stress-strain model of confined concrete. Variables considered as parameters were the volumetric ratio of tie reinforcement ρ_s, the cylinder strength of concrete σ_c0 and the number of unloading and reloading cycles at the same strain. To predict an unloading and reloading path, the plastic strain ε_pl·n and the stress at the unloading strain σ_ul·n are controlling parameters. These controlling parameters were analyzed based on the test data to propose an empirical relation. The predicted relation provides good agreement with the test data.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2000 (654), 297-316, 2000-07-21

  Japan Society of Civil Engineers

Keywords

• seismic design
• seismic retrofit
• bridge
• lateral confinement
• unloading and reloading
• stress-strain relation

Details

• CRID: 1390001205308868608
• NII Article ID: 10004544135
• NII Article ID: 130003983614
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2000.654_297
• ISSN: 18827187
• ISSN: 02897806
• ISSN: http://id.crossref.org/issn/02897806
• NDL BIB ID: 5468306
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5468306
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/2000/654/2000_654_297/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed