Design Method for Tension Load Capacity of Post-Installed Bonded Anchor Bolts and Associated Issues

各種合成構造設計指針における接着系あと施工アンカーボルトの引張支持力に関する設計法と課題

Given the same tension load capacity, the anchorage length of post-installed bonded anchor bolts is extremely short compared with the anchorage length of cast-in-place anchor bolts. Under the Architectural Institute of Japan's “Design Recommendations for Composite Construction, Part 4: Design Recommendations for Anchor Bolts” revised in 2010, the design of the anchorage zone of anchor bolts is based on the concept that the anchorage zone is the same regardless of whether anchors are cast in place or post installed. With regard to the design method for the tension load capacity of bonded anchors, this study investigates whether evaluation based on the maximum load determined from the bond strength between the adhesive and concrete is appropriate, and proposes a tension load capacity evaluation formula. Further, it verifies that the estimates of bond strength, which declines as the result of the edge distance effect and group effect, among other things, are equivalent with the bond strengths used for cast-in-place deformed bars.接着系あと施工アンカーボルトの引張支持力に対する定着長は，先付けアンカーボルトの定着長さに比べて非常に短い。2010年に改定された「日本建築学会：各種合成構造設計指針，第4編　各種アンカーボルト設計指針」では，アンカーボルトの定着部設計は，先付け・後打ちといった工法の種別によらず同一であるという思想に基づいている。接着系アンカーの引張支持力に対する設計法は，接着剤とコンクリートとの付着力により決まる耐力で評価する手法が適切であることを検証し，引張支持力評価式を示している。また，へりあき・群効果等で低減した付着強度は先付けの異形鉄筋で用いられている付着強度と同様な算定値となることを検証している。

• Record URL:
  https://doi.org/10.3151/coj.51.243
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=Design+Method+for+Tension+Load+Capacity+of+Post-Installed+Bonded+Anchor+Bolts+and+Associated+Issues&author=K.+Nakano&author=Y.+Matsuzaki&author=T.+Sugiyama&publication_year=2013
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03871061
• Authors:
  • Nakano, K
  • Matsuzaki, Y
  • Sugiyama, T
• Publication Date: 2013

Language

• English
• Japanese

Media Info

• Media Type: Web
• Pagination: pp 243-250
• Serial:
  • Concrete Journal
  • Volume: 51
  • Issue Number: 3
  • Publisher: Japan Concrete Institute
  • ISSN: 0387-1061
  • EISSN: 2186-2753
  • Serial URL: https://www.jstage.jst.go.jp/browse/coj

Subject/Index Terms

• TRT Terms: Anchor bolts; Bond strength (Materials); Design methods; Loads; Tension
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01522965
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Apr 24 2014 11:45AM