飛翔体の高速衝突下における鉄筋補強モルタル柱の損傷に及ぼす繊維補強効果

• 張 志成

  熊本大学 大学院自然科学研究科

• 山口 信

  熊本大学 大学院先端科学研究部

• 森島 慎太郎

  熊本大学 大学院自然科学教育部

書誌事項

タイトル別名

• Fiber-Reinforcing Effects on Damage of Reinforced Mortar Columns under High-Velocity Impact of Projectile
• ヒショウタイ ノ コウソク ショウトツ カ ニ オケル テッキン ホキョウ モルタル チュウ ノ ソンショウ ニ オヨボス センイ ホキョウ コウカ

抄録

The objective of this study is to obtain data that contributes to the development of a damage-reducing method for reinforced concrete columns under severe accidents involving shock phenomena. Experimental investigations were conducted to evaluate the effects of long/short fiber reinforcement on the damage of reinforced mortar (RM) columns subjected to high-velocity projectile impact. The following two types of RM column specimens were supplied for high-velocity impact tests: (i) RM columns strengthened with two-directional aramid fiber sheets (AFRP sheets) lining; and (ii) RM columns of which the mortar was replaced with polyvinyl-alcohol fiber reinforced cementitous composite (PVA-FRCC). The results showed that the lining strengthening with two-directional AFRP sheets remarkably reduces the exfoliation of mortar even under the condition that an impact velocity is almost 1 000 m/s. PVA-FRCC also possessed good damage-reducing performance under an impact velocity of almost 600 m/s, but the exfoliation occurred under that of almost 1 000 m/s.

収録刊行物

• 材料

  材料 67 (11), 985-991, 2018-11-15

  公益社団法人 日本材料学会

キーワード

• Reinforced mortar columns
• Lining strengthening
• Short fiber reinforcement
• Damage
• Projectile
• High-velocity impact

詳細情報

• CRID: 1390564238044043264
• NII論文ID: 130007519708
• NII書誌ID: AN00096175
• DOI: 10.2472/jsms.67.991
• ISSN: 18807488
• ISSN: 05145163
• NDL書誌ID: 029378717
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029378717
• Web Site: https://www.jstage.jst.go.jp/article/jsms/67/11/67_985/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可