A study on brittle fracture control of steel structures focusing on stress multi-axiality

2011 Fiscal Year Final Research Report

• Project/Area Number: 22760340
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Tokyo Institute of Technology (2011); Yokohama National University (2010)
• Principal Investigator: SASAKI Eiichi 東京工業大学, 大学院・理工学研究科, 准教授 (40311659)
• Project Period (FY): 2010 – 2011
• Keywords: 耐震構造

Research Abstract

In this study, for the purpose of the control of brittle fracture during earthquakes, experimental and analytical investigations were conducted to clarify occurrence mechanism and occurrence criterion focusing on stress multi-axiality. In this study, especially, the effects of material properties, local constraint, and weld bead shapes were discussed.

Research Products

• [Journal Article] Experimental study on low cycle fatigue strength of beam-to-column connections in steel bridge bents with different plate assembling and material mismatching (2012)
  • Author(s): Saiprasertkit K., Sasaki E. and Miki C.
  • Journal Title: International journal of steel structure Volume: (掲載決定)
  • Peer Reviewed
• [Journal Article] 動的負荷の影響に着目した鋼製橋脚隅角部における地震時脆性破壊発生要因の検討 (2012)
  • Author(s): 田村洋, 佐々木栄一, 山田均, 勝地弘
  • Journal Title: 土木学会論文集A1 Volume: Vol.68, No.2 Pages: 226-241
  • Peer Reviewed
• [Journal Article] 地震時に曲げを受ける溶接部の延性き裂発生に与える溶接部形状の影響と止端仕上げによる抑制効果 (2010)
  • Author(s): 田村洋, 佐々木栄一, 金成東, 山田均, 勝地弘
  • Journal Title: 鋼構造論文集 Volume: No.68 Pages: 55-68
  • Peer Reviewed
• [Presentation] Experimental study on low cycle fatigue strength of beam-to-column connections in steel bridge bents with different plate assembling and material mismatching (2012)
  • Author(s): Saiprasertkit K., Sasaki E. and Miki C.
  • Organizer: International Institute of Welding
  • Place of Presentation: AaltoUniversity、Finland
  • Year and Date: 2012-03-15
• [Presentation] 鋼材の延性破壊に及ぼすひずみ履歴の影響 (2011)
  • Author(s): 森谷謙一,佐々木栄一,山田均,勝地弘,田村洋
  • Organizer: 第66回土木学会年次学術講演会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2011-09-07
• [Presentation] 地震時に曲げを受ける溶接部の延性き裂発生に与える溶接部形状の影響と止端仕上げの効果 (2010)
  • Author(s): 田村洋,佐々木栄一,山田均,勝地弘,金成東
  • Organizer: 第65回土木学会年次学術講演会
  • Place of Presentation: 北海道大学
  • Year and Date: 2010-09-01