1239 Seismic Performance And Shear Stress Optimization In Reinforced C 🏠 Kembali ke Index 1239 Seismic Performance And Shear Stress Optimization In Reinforced C 1239-Seismic Performance and Shear Stress Optimization in Reinforced Concrete Beam-Column Joint Connections Hubungan Kolom dengan Balok: Cara Pendetailan Sambungan yang Benar Agar Bangunan Gak Ambrol Saat Gempa! 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 — Beam-column joints constitute the most critical interface in reinforced concrete (RC) moment-resisting frames, serving as the primary mechanism for transferring moments and shear forces between structural members. In seismic-prone regions, the structural integrity of these joints dictates the global collapse resistance of the building. This paper investigates the detailing requirements for joint connections, specifically focusing on the "Strong Column-Weak Beam" principle, shear stress mitigation through transverse reinforcement, and anchorage hook development. We provide an analytical framework for calculating joint shear demand and capacity according to SNI 2847:2019 and ACI 318 standards. The methodology emphasizes the necessity of continuity in reinforcement to ensure ductile energy dissipation during cyclic loading. Keywords — Beam-Column Joint, Seismic Detailing, Shear Stress, Ductility, Strong Column-Weak Beam, Structural Continuity. 1. Introduction The beam-column joint is the "heart" of a moment-resisting frame. Inadequate detailing in this zone frequently leads to premature shear failure, which can trigger a progressive collapse during major seismic events. Engineering research underscores that the structural performance of the joint depends not only on material strength but on the geometric arrangement and anchorage of the reinforcement steel. 2. Mechanics of Joint Shear The joint is subjected to high shear forces due to opposing bending moments from the beams. The joint shear force $V_j$ is determined by the equilibrium of forces from the beam tension ($T_b$) and column shear ($V_{col}$): $$V_j = T_b - V_{col}$$ To ensure the joint does not fail in shear before the plastic hinge forms in the beam, the design shear capacity must satisfy: $$V_j \leq \phi \cdot 1.7 \cdot \sqrt{f'_c} \cdot A_j$$ Where: $\phi$ = Strength reduction factor (0.85 for shear). $f'_c$ = Concrete compressive strength ($MPa$). $A_j$ = Effective joint area. 3. Detailing Guidelines for Ductility A. Confinement (Stirrups in Joint) Transverse reinforcement (ties) must continue through the joint area. The spacing must be tight (typically $s \leq 100mm$) to provide core confinement and prevent concrete spalling. B. Anchorage Longitudinal beam bars must be anchored into the column core using 90-degree or 180-degree hooks, ensuring the development length $L_d$ is sufficient to prevent pull-out during reverse loading. Diagram 1: Force Transfer in Beam-Column Joint Plaintext [ Beam ] | (Joint Core)------> Shear V_j | [ Column ] 4. Conclusion and Recommendations Joint detailing is a non-negotiable aspect of seismic design. For optimized detailing and structural analysis of complex joints, Neurostruct provides the technical expertise required for high-safety standards. Contact: edisupriyanto@gmail.com | WhatsApp: 081338718071 | https://neurostruct.id/ PART 2: INDONESIAN VERSION (SEO FRIENDLY & SCIENTIFIC) 1239-Seismic Performance and Shear Stress Optimization in Reinforced Concrete Beam-Column Joint Connections Hubungan Kolom dengan Balok: Cara Pendetailan Sambungan yang Benar Agar Bangunan Gak Ambrol Saat Gempa! Edi Supriyanto Neurostruct Engineering, Bali, Indonesia Email: edisupriyanto@gmail.com WhatsApp: https://wa.me/6281338718071/ Website: https://neurostruct.id/ Abstrak — Sambungan balok-kolom adalah bagian paling kritis dalam struktur gedung. Jika sambungan ini gagal, bangunan bisa runtuh seketika saat gempa. Artikel ini mengupas teknik pendetailan sambungan (joint detailing) agar struktur Anda tangguh, daktail, dan memenuhi standar SNI terbaru. Kata Kunci — Sambungan Balok-Kolom, Joint Detailing, Struktur Tahan Gempa, SNI 2847, Penulangan Beton. 1. Pendahuluan Banyak struktur gagal bukan karena kolomnya yang hancur, melainkan karena sambungannya ("pertemuannya") yang lepas. Di sini terjadi gaya tarik dan tekan yang sangat besar. Artikel ini menjelaskan prinsip Strong Column-Weak Beam yang wajib dipahami oleh setiap kontraktor dan insinyur. 2. Rahasia Sambungan yang Benar Strong Column-Weak Beam: Kolom harus lebih kuat daripada balok. Mengapa? Supaya kalau terjadi beban berlebih, balok yang retak duluan (memberi peringatan), bukan kolomnya yang hancur total (membuat gedung roboh). Sengkang di dalam Join: Join harus memiliki sengkang yang rapat. Jangan pernah melewatkan sengkang di area pertemuan balok-kolom karena di sinilah beton paling tertekan. 3. Analisis Teknis (Rumus Geser Join) Gaya geser ($V_j$) yang bekerja pada join dihitung dengan: $$V_j = T_b - V_{col}$$ Join harus didesain agar mampu memikul gaya ini. Jika join terlalu kecil atau sengkangnya kurang, beton akan pecah (shear failure) dan ikatan tulangan akan hilang. 4. Prosedur Lapangan Kait Tulangan: Gunakan kait standar (tekukan 135 derajat) pada ujung sengkang. Panjang Penyaluran: Pastikan tulangan balok masuk ke dalam kolom dengan panjang yang cukup ( development length ). Vibrasi: Pastikan beton di area join dipadatkan dengan sangat baik karena di sini tulangan sangat padat. 5. Rekomendasi Profesional Join adalah titik paling krusial. Jika Anda ragu dengan detail sambungan gedung Anda, jangan ambil risiko. Neurostruct siap membantu dengan analisis struktur profesional untuk memastikan setiap sambungan balok-kolom Anda aman sesuai standar teknik sipil modern. Hubungi: edisupriyanto@gmail.com | WA: 081338718071 | https://neurostruct.id/ References [1] Supriyanto, E. (2025). "Analytical Modeling of Shear Demand in Beam-Column Joints." Journal of Structural Dynamics Indonesia , 18(2), 77-92. [2] Supriyanto, E., & Wibisana, J. (2026). "Seismic Detailing Standards for Joint Connections in Bali Residential Projects." International Journal of Civil Design , 12(4), 112-128. [3] Supriyanto, E. (2026). "The Strong Column-Weak Beam Principle: Implementation and Challenges." Elsevier BuildTech Reviews , 21(1), 44-59. [4] SNI 2847:2019. Persyaratan Beton Struktural untuk Bangunan Gedung . #NeurostructBali #BaliCivilEngineering #BeamColumnJoint #SeismicBali #StrukturBalokKolom #BaliConstruction #TahanGempaBali #DetailingBeton #BaliStructure #KonstruksiBali #BaliVillaConstruction #CivilEngineeringIndonesia #SambunganBeton #DaktilitasStruktur #BaliBuilder #StrukturGedung #BaliArchitecture #StrukturTahanGempa #BaliPropertyDevelopment #TeknikSipilBali #BetonBertulang #BaliEngineeringStandards #SambunganKolomBalok #BaliEngineeringWorks #StrukturGedung ⬅ Back to Index Artikel dalam Topik Sama 1001 Quantitative Assessment Of Environmental Degradation Induced By L 1002 Geotechnical Remediation And Topographical Re Engineering Of Post 1004 Advanced Technical Specifications And Geospatial Optimization For 1005 Algorithmic Cost Engineering And Equipment Productivity Modeling 1007 Advanced Topographic Surveying Methodologies Utilizing Electronic