Q235B Q355B Custom Hotel Steel Structure Fabrication Weather Resistant

‌Technical Overview: Advanced Steel Structural System of Hotel

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1. Structural System Design‌
The hotel employs a hybrid steel structure combining moment-resisting frames (MRFs) and braced steel frames to optimize lateral load resistance. Primary load-bearing elements utilize ASTM A992 high-strength steel (Fy = 50 ksi), with H-shaped columns (W14×132) and wide-flange beams (W18×40) designed per AISC 360-22 specifications. Secondary members integrate lightweight CFS (cold-formed steel) trusses for roof spans up to 18m, achieving a dead load reduction of 30% compared to conventional concrete systems.

‌2. Connection Technology‌
Critical joints feature slip-critical bolted connections (SCBL) with A325 bolts, ensuring seismic integrity in Zone 4 per ASCE 7-22. Prefabricated steel modules (accuracy: ±2mm) were assembled using robotic welding (AWS D1.8 compliant), reducing on-site labor by 40%. Diagonal eccentric braces (EBFs) with replaceable fuse elements enhance post-earthquake reparability.

‌3. Construction Innovation‌
The structure adopted a Design for Manufacture and Assembly (DfMA) approach:

• BIM-driven steel detailing (Tekla Structures) enabled clash-free MEP integration within steel cavities.
• Composite steel-deck floors (3mm profiled sheets + 150mm LC30/33 concrete) achieved fire resistance of R90 (EN 1994-1-2).
• Galvanized steel cladding (G550 AZ150) with PVDF coating provides 25-year corrosion protection in coastal environments (C5-M class per ISO 12944).

‌4. Performance Metrics‌

• Deflection control: L/360 for live loads (3.5 kPa), L/240 for total loads.
• Modal analysis confirmed natural frequencies > 5Hz, eliminating human-induced vibration concerns.
• Airborne sound insulation: Rw 55 dB for interfloor assemblies (tested per ISO 10140).

‌5. Sustainability Features‌

• 92% structural steel recycled content (SRI-certified).
• Embodied carbon: 28% lower than RC alternatives (calculated via ICE v3.0 database).
• Modular disassembly design allows 85% material reuse post-demolition.

‌Certifications:‌ LEED Platinum (BD+C), ISO 14001 Environmental Management System.

OEM service available. 

A dedicated team of fast response;

EN1090 & AISC & CWB & JIS Certificated Quality;

Full production line for customized products;

Close to Sea port, Convenient for visit and delivery;

150000M2 Manufacturing Area capable to take large volume