‌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

Sunway is a Chinese steel fabricator established in the year 2002, providing OEM steel structure for Construction Building, Solar Tracker, Chemical Plant, Power Plant, Mining & Cement equipment.

Sunway has passed international certificates including AISC, CE, CWB, JIS, ISO. Supply full package of steel works ready for erection on site. 70% of products exported to overseas, including Europe, North America and Australia, etc.

Sunway conducts digital management of the workshop. Through Tekla, Solidworks software and MES systems, the full traceability of product cycle is realized.

Besides the Automatic Intelligent Production Line for H beam & Box Column, the factory is well equipped with Laser Cutting Machine, Robot Welding Machine, Sawing Machine, Drilling Machine, Hydraulic Press Machine, Punching Machine, Shot-blasting machine and independent Painting workshop. 

The typical products are Built-up H section, Steel Frame, Steel Truss, Solar tracker bracket, and Pipe Racking Structures.

Why choose Sunway?

OEM & Detailing 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;

100,000M2 Manufacturing Area capable to take large volume;

Built on strength, passion and a steady pulse, we’re creating tomorrow ’s Building today. We are Sunway Steel, and we’re fabricating the Future.