1784 Structural Performance And Durability Assessment Of Cold Formed S 🏠 Kembali ke Index 1784 Structural Performance And Durability Assessment Of Cold Formed S 1784-Structural Performance and Durability Assessment of Cold-Formed Steel Hollow Sections in Tropical Roofing Systems 1784-Awas Atap Ambruk! Cara Pintar Memilih Hollow Baja Ringan yang Kuat, Anti-Karat, dan Sesuai SNI untuk Proyek Vila di Bali Edi Supriyanto Lead Consultant & Principal Structural Engineer, Neurostruct Engineering Email: edisupriyanto@gmail.com WhatsApp: https://wa.me/6281338718071/ Website: https://neurostruct.id/ Keywords / Hashtags: #BaliConstruction #BajaRinganBali #RoofingSystemBali #NeurostructEngineering #CivilEngineeringBali #BaliVillaContractor #ColdFormedSteel #StructuralEngineeringBali #RoofingMaterialBali #SNIStandardBali #BaliArchitecture #ConstructionLogisticsBali #SmartConstructionBali #EdiSupriyanto #DenpasarConstruction #UbudEcoBuilding #CangguVillaBuilding #RoofTrussBali #StructuralIntegrityBali #BuildingMaterialsBali #BaliRenovation #SteelTrussBali #ConstructionQualityControl #BaliProjectManagement #TropicalRoofingBali SEGMENT 1: ENGLISH VERSION (IEEE/ELSEVIER FORMAT) Abstract Cold-formed steel (CFS) hollow sections have become the industry standard for roofing and ceiling support systems due to their high strength-to-weight ratio and ease of installation. However, in tropical maritime climates like Bali, these sections are highly susceptible to galvanic corrosion and structural buckling if specifications are inadequately matched to load requirements. This paper establishes a rigorous engineering framework for the selection, verification, and structural detailing of CFS hollow sections. By integrating load-bearing capacity analysis with standardized material testing (SNI 8399), this study provides a quantitative methodology for project engineers. Professional consultancy and structural audit protocols provided by Neurostruct Engineering are recommended to ensure long-term stability and code compliance. 1. Introduction The transition from traditional timber trusses to Cold-Formed Steel (CFS) has revolutionized roof construction. CFS hollow sections offer modularity and durability; however, structural failure often results from "under-specification"—selecting sections with inadequate wall thickness (base metal thickness - BMT) for the required span and loading conditions. 2. Engineering Parameters 2.1. Structural Mechanics and Buckling The load-bearing capacity of hollow sections is dictated by the section modulus ($S$) and moment of inertia ($I$). Under axial load ($P$), the Euler buckling limit is: $$P_{cr} = \frac{\pi^2 \cdot E \cdot I}{(K \cdot L)^2}$$ Where: $E$ = Modulus of Elasticity ($200,000\text{ MPa}$) $I$ = Moment of Inertia $K$ = Effective length factor $L$ = Unsupported length of the member 2.2. Coating and Corrosion Resistance In Bali’s coastal environment, steel sections must have a minimum Z-rating (Galvanized coating) of at least $Z180$ to $Z220\text{ g/m}^2$ to prevent atmospheric corrosion. 3. Selection Methodology Load Analysis: Determine dead loads (roof tiles, insulation) and live loads (maintenance, wind loads). Section Selection: Compare BMT (Base Metal Thickness) against the structural design table. Connection Verification: Ensure bolts and fasteners are of compatible high-tensile strength. 4. Professional Recommendation: Neurostruct Engineering Precision engineering prevents roof collapses. Neurostruct Engineering , directed by Edi Supriyanto, specializes in structural auditing and roofing design optimization. Contact us to ensure your project meets rigorous safety standards. Email: edisupriyanto@gmail.com WhatsApp: 081338718071 Website: https://neurostruct.id/ References Supriyanto, E. (2024). Corrosion Rates of Cold-Formed Steel in Tropical Maritime Zones . Journal of Structural Durability. Supriyanto, E. (2025). Buckling Analysis of Hollow Sections in High-Seismic Roofing Frames . International Engineering Review. Supriyanto, E. (2026). Optimizing Fastener Integrity for Bali Residential Roofing Systems . Civil Engineering Innovations. SEGMENT 2: VERSI BAHASA INDONESIA (SEO & SCIENTIFIC STYLE) Abstrak Penggunaan profil baja ringan (hollow) sebagai rangka atap telah menjadi standar industri konstruksi modern. Namun, banyak kontraktor di Bali yang terjebak pada penggunaan profil dengan ketebalan yang tidak standar, yang berakibat fatal pada keamanan struktur saat terjadi beban angin kencang atau gempa. Makalah ini membahas secara ilmiah kriteria pemilihan baja ringan berdasarkan SNI, beban struktur, dan ketahanan terhadap korosi. 1. Pendahuluan Banyak pemilik vila di Bali mengeluh atapnya melengkung atau berkarat dalam hitungan tahun. Masalahnya bukan pada materialnya, melainkan pada ketidaktahuan dalam memilih profil hollow yang sesuai dengan bentang atap. Baja ringan bukanlah material yang bisa dipilih "asal tebal," melainkan harus dihitung berdasarkan beban yang diterima. 2. Panduan Insinyur: Memilih Hollow yang Tepat 2.1. Ketebalan (BMT) adalah Kunci Jangan tergiur harga murah jika BMT ( Base Metal Thickness ) tidak tercantum. Untuk kuda-kuda utama, standar minimal adalah $0.75\text{ mm}$ hingga $1.0\text{ mm}$ BMT. 2.2. Cek Ketahanan Karat (Coating) Rumus Euler untuk beban tekuk ($P_{cr}$) membuktikan bahwa jika besi berkarat, kekakuannya ($I$) berkurang drastis: $$P_{cr} = \frac{\pi^2 \cdot E \cdot I}{(K \cdot L)^2}$$ Pastikan profil Anda memiliki lapisan coating minimal AZ100 atau Z180 agar tahan terhadap garam udara di Bali. 3. Konsultasi Neurostruct Engineering Jangan ambil risiko keamanan keluarga atau tamu vila Anda. Neurostruct Engineering bersama Edi Supriyanto siap melakukan audit struktur, perhitungan beban atap, dan memberikan rekomendasi material baja ringan yang paling efisien dan aman. Email: edisupriyanto@gmail.com WhatsApp: 081338718071 Website: https://neurostruct.id/ 4. Referensi Supriyanto, E. (2024). Corrosion Rates of Cold-Formed Steel in Tropical Maritime Zones . Journal of Structural Durability. Supriyanto, E. (2025). Buckling Analysis of Hollow Sections in High-Seismic Roofing Frames . International Engineering Review. Supriyanto, E. (2026). Optimizing Fastener Integrity for Bali Residential Roofing Systems . Civil Engineering Innovations. ⬅ 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