The role of bond, friction and hook-bearing on anchor pull-out in low-strength concrete: experiments and design implications
8th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, SMAR 2026, Dresden, Almanya, 26 - 28 Ağustos 2026, cilt.85, ss.1449-1455, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Cilt numarası: 85
- Doi Numarası: 10.1016/j.prostr.2026.08.139
- Basıldığı Şehir: Dresden
- Basıldığı Ülke: Almanya
- Sayfa Sayıları: ss.1449-1455
- Anahtar Kelimeler: Anchorage, bearing, bond, friction, pull-out
- Kocaeli Üniversitesi Adresli: Evet
Özet
This study presents a comprehensive experimental program to evaluate the behavior of unheaded straight and bent-bar anchors with J-hook details, which were embedded in 15 MPa concrete representative of existing industrial pedestals. The program is structured to isolate resistance of bent part of the anchor, quantify the contribution of surface friction, examine the limits of bond mobilization, and evaluate mechanisms under controlled boundary conditions. The results demonstrate bearing of bent part of the anchor and surface friction provide measurable contributions to pullout resistance, and that current pullout predictions are conservative for the investigated conditions. The findings establish a rational basis for reassessing anchor performance in low-strength industrial concrete and support refinement of evaluation methodologies without compromising safety