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All Journal APPLIED RESEARCH ON CIVIL ENGINEERING AND ENVIRONMENT (ARCEE)
Hana Rosilawati
Architecture Department, Universitas Widya Kartika, Surabaya, 60113, Indonesia
Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Materials Science & Nanotechnology Transportation

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COMPARISON OF STANDARD AND SEISMIC HOOKED-BAR DEVELOPMENT LENGTHS UNDER SNI 2847:2019, ACI 318-19, AND ACI 318-25 Erlina Yanuarini; Hana Rosilawati
Applied Research on Civil Engineering and Environment (ARCEE) Vol. 7 No. 2 (2026): Building the Future: Advancing Civil Engineering through Technology, Materials,
Publisher : POLITEKNIK NEGERI JAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/arcee.v7i2.9048

Abstract

Standard hooks are commonly used to anchor beam reinforcement in exterior reinforced concrete (RC) beam–column joints, where the hooked-bar development length often governs the column depth. SNI 2847:2019 adopts ACI 318-14 and has not incorporated the revisions in ACI 318-19 and ACI 318-25. This study aims to compare the standard and seismic hooked-bar development lengths of SNI 2847:2019, ACI 318-19, and ACI 318-25 and to identify the conditions under which they differ materially. The comparison covers the governing equations, modification factors, and applicability limits. It also includes a controlled parametric analysis (D16–D57 bars,  = 28 MPa,  = 420 and 550 MPa) and design examples of an exterior joint with a 600 × 600 mm column. ACI 318-19 gives considerably longer hooked-bar development length than SNI 2847:2019, particularly for large bars and joints without confinement. ACI 318-25 gives identical the hooked-bar development length for bars up to D29 and only moderately longer values for larger bars. The seismic provision is identical in all editions and is not always shorter than the standard provision. The code revisions therefore mainly affect intermediate and ordinary moment frames and D32 and larger bars.
Co-Authors Erlina Yanuarini