SHEAR TRANSFER MECHANISM IN SMOOTH CRACKS OF ULTRA-HIGH-STRENGTH REINFORCED CONCRETE MEMBERS

• SHINOHARA Yasuji

  Struct. Eng. Research Center, Tokyo Institute of Technology

• SAITO Hiroyuki

  Tokyo Institute of Technology:(Present Office)Obayashi Corporation

• HAYASHI Shizuo

  Secure Materials Center, Tokyo Institute of Technology

Bibliographic Information

Other Title

• 超高強度コンクリート部材の平滑なひび割れ面におけるせん断伝達メカニズム
• チョウコウキョウド コンクリート ブザイ ノ ヘイカツナ ヒビワレメン ニ オケル センダン デンタツ メカニズム

Abstract

Ultra-high-strength concrete more than 100 N/mm^2 has been required for reinforced concrete (RC) columns in the lower layer of super high-rise condominiums. The configuration of a crack in such a high-strength concrete is much smoother than that in normal-strength concrete. This smooth crack surface may lead different mechanical behaviors of RC members. The tests were performed on RC member with compressive strength of 125 N/mm^2 to study the influence of the configuration of cracks and the arrangement of shear reinforcement upon the shear behaviors of RC members. The meaningful relation between shear reinforcements and shear crack behaviors has been proven by measuring the width and sliding of cracks. The FEM analyses have been also carried out to investigate the shear transfer mechanism in smooth cracks by using smeared crack models with shear retention factors and discrete crack models with different aggregate sizes.

Journal

• Journal of Structural and Construction Engineering (Transactions of AIJ)

  Journal of Structural and Construction Engineering (Transactions of AIJ) 72 (618), 183-190, 2007

  Architectural Institute of Japan

Keywords

• High strength concrete
• Smooth crack
• Crack behavior
• Mechanical behavior
• Shear transfer mechanism
• FEM analysis

Details

• CRID: 1390001205670421120
• NII Article ID: 110006367036
• NII Book ID: AN10438559
• DOI: 10.3130/aijs.72.183
• ISSN: 18818153
• ISSN: 13404202
• ISSN: http://id.crossref.org/issn/13404202
• NDL BIB ID: 8914383
• Web Site: http://id.ndl.go.jp/bib/8914383
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8914383
• Web Site: https://www.jstage.jst.go.jp/article/aijs/72/618/72_KJ00004660307/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed