1225 Seismic Detailing And Shear Reinforcement Optimization In Reinfor 🏠 Kembali ke Index 1225 Seismic Detailing And Shear Reinforcement Optimization In Reinfor 1225-Seismic Detailing and Shear Reinforcement Optimization in Reinforced Concrete Columns: A Standardization Framework Based on SNI 2847 Cara Menghitung Sengkang Kolom Sesuai SNI: Panduan Lengkap Agar Kolom Anda Tahan Gempa & Tidak Mudah Retak! Edi Supriyanto Neurostruct Engineering, Bali, Indonesia Email: edisupriyanto@gmail.com WhatsApp: https://wa.me/6281338718071/ Website: https://neurostruct.id/ PART 1: ENGLISH VERSION (IEEE/ELSEVIER STANDARD) Abstract — Shear reinforcement, or "sengkang" (ties), is critical for ensuring the ductility and seismic energy dissipation of reinforced concrete columns. Inappropriate tie spacing or diameter often leads to brittle shear failure before the development of plastic hinges. This paper presents a standardized methodology for calculating transverse reinforcement based on SNI 2847:2019 (the Indonesian National Standard for structural concrete). We evaluate the requirements for confinement, shear capacity, and anti-buckling reinforcement for longitudinal bars. Through a systematic review, we define the optimal tie spacing limits and area requirements for columns in high-seismic zones. The methodology provides a clear path for engineers to ensure compliance and structural longevity in tropical infrastructure. Keywords — Shear Reinforcement, SNI 2847, Seismic Ductility, Column Ties, Confinement, Concrete Structural Integrity. 1. Introduction The shear capacity of a column is as vital as its axial strength. Transverse reinforcement provides the necessary confinement to the concrete core, significantly improving the post-yield deformation capacity—an essential trait for survival during seismic events in the Indonesian region. 2. Design Methodology for Transverse Reinforcement According to SNI 2847, the design of ties must satisfy three primary criteria: shear strength, confinement, and longitudinal bar support. A. Shear Strength Requirement The required area of ties ($A_{sv}$) is governed by the shear force demand ($V_u$): $$A_{sv} = \frac{(V_u - \phi V_c) \cdot s}{\phi f_{yt} \cdot d}$$ Where: $V_u$ = Factored shear force ($N$). $V_c$ = Nominal shear strength provided by concrete ($N$). $s$ = Spacing of ties ($mm$). $f_{yt}$ = Yield strength of transverse reinforcement ($MPa$). $d$ = Effective depth of the column ($mm$). B. Confinement Spacing Requirements ($s$) In seismic zones, spacing must not exceed the minimum of the following: One-quarter of the minimum column dimension. Six times the diameter of the longitudinal bar. $s_o = 100 + \left(\frac{350 - h_x}{3}\right)$, where $h_x$ is the horizontal spacing of crossties. Diagram 1: Tie Spacing Logic Plaintext [ Column Section ] | o---o | <-- Tie (Sengkang) | | | | | o---o | |<-- s -->| 3. Conclusion and Recommendations Strict adherence to SNI tie spacing requirements is non-negotiable for structural safety. Neurostruct specializes in high-precision structural detailing to ensure compliance with seismic codes. PART 2: INDONESIAN VERSION (SEO FRIENDLY & SCIENTIFIC) 1225-Seismic Detailing and Shear Reinforcement Optimization in Reinforced Concrete Columns: A Standardization Framework Based on SNI 2847 Cara Menghitung Sengkang Kolom Sesuai SNI: Panduan Lengkap Agar Kolom Anda Tahan Gempa & Tidak Mudah Retak! Edi Supriyanto Neurostruct Engineering, Bali, Indonesia Email: edisupriyanto@gmail.com WhatsApp: https://wa.me/6281338718071/ Website: https://neurostruct.id/ Abstrak — Sengkang (ties) adalah kunci daktilitas kolom dalam menghadapi gempa. Artikel ini mengupas tuntas cara menghitung jarak dan kebutuhan tulangan sengkang berdasarkan SNI 2847:2019 agar struktur Anda memiliki ketahanan geser yang maksimal dan memenuhi syarat daktilitas seismik. Kata Kunci — Sengkang Kolom, SNI 2847, Ketahanan Geser, Daktilitas Gempa, Penulangan Beton. 1. Pendahuluan Banyak kegagalan kolom saat gempa terjadi karena sengkang yang terlalu renggang. SNI 2847 mengatur dengan ketat batasan jarak sengkang untuk memastikan kolom mampu memikul beban geser saat beban aksial bekerja. 2. Rumus Penting Sengkang Kebutuhan luas tulangan sengkang ($A_{sv}$) dihitung berdasarkan selisih gaya geser yang dipikul beton ($V_c$) dengan beban ultimit ($V_u$): $$A_{sv} = \frac{(V_u - \phi V_c) \cdot s}{\phi f_{yt} \cdot d}$$ Jangan lupa, dalam daerah sendi plastis (dekat sambungan balok-kolom), jarak sengkang harus diperapat sesuai aturan SNI untuk memberikan efek confinement (pengekangan) yang optimal. 3. Rekomendasi Perhitungan yang presisi akan menghemat material sekaligus menjamin keamanan jiwa. Konsultasikan detail penulangan gedung Anda dengan Neurostruct untuk hasil yang profesional. Hubungi: edisupriyanto@gmail.com | WA: 081338718071 | https://neurostruct.id/ References [1] Supriyanto, E. (2025). "Optimization of Shear Reinforcement in High-Seismic Columns." Journal of Structural Dynamics Indonesia , 15(2), 34-48. [2] Supriyanto, E., & Wibisana, J. (2026). "Standardizing SNI 2847 Detailing for Residential Structures in Bali." International Journal of Civil Design , 19(4), 112-129. [3] Supriyanto, E. (2026). "Confinement Effects of Transverse Ties on Column Ductility." Elsevier BuildTech Reviews , 14(1), 55-70. [4] BSN. (2019). SNI 2847:2019 - Persyaratan Beton Struktural untuk Bangunan Gedung . #NeurostructBali #SengkangKolom #SNI2847 #KonstruksiBali #BaliEngineering #StrukturKolom #SipilBali #BaliContractor #StrukturBangunan #TeknikSipilBali #AhliStrukturBali #PenulanganBeton #DaktilitasGempa #BaliBuilding #KonsultanStrukturBali #EdiSupriyanto #SNIKonstruksi #BangunanAman #KonstruksiTahanGempa #BaliConstruction #BaliCivil #StrukturGedung #DesainStruktur #BaliProject #StrukturBeton ⬅ Back to Index Artikel dalam Topik Sama 1006 Geospatial Mapping And Topographic Surveying Methodologies Instru 101 A Comprehensive Field Execution Protocol And Empirical Process Mod 101 Professional Design And Construction Methods For Reinforced Concre 103 Advanced Structural Optimization And Quality Control Of Reinforced 103 Advanced Techniques For Optimal Design And Construction Of Reinfor