Modular Prefab Multi Floor Steel Frame Office Building Commercial Complex Construction Bolted Assembly
| Main Structurel Material: | Q355B/ASTM A572 Gr.50/EN S355/JIS SM490 | Secondary Structurel Material: | К235Б/АСТМ А36/ЭН С235ДЖР/ДЖИС СС400 |
| Other Material: | К460/АСТМ А572 Гр.65/ЭН С460/ДЖИС СМ570 | Column and Beam: | Сварной двутавровый профиль/горячекатаная двутавровая балка/коробчатая колонна |
| Purlin: | Стальной канал формы CZ | Roof and Wall panel: | Сэндвич-панель EPS / минеральной ваты / PU / PIR, гофрированный / трапециевидный стальной лист / по |
| Window: | Алюминиевый сплав/ПВХ/промышленное окно с жалюзи | Door: | Раздвижные/роликовые ставни/навесная стальная дверь/стальная дверь по индивидуальному заказу |
| Customization: | Стиль/Размер (пролет, высота, длина)/Цвет/Материал/Грузоподъемность крана | Surface treatment: | Горячеоцинкованная грунтовка с высоким содержанием цинка + верхний слой Антикоррозийное покрытие |
| Seismic and Wind Resistance Rating: | Спроектировано в соответствии с местными сейсмическими нормами/Ветер: 0,3–1,1 кН/㎡/81–150 миль в час | Project Solution Capability: | Графический дизайн САПР, проектирование 3D-моделирования Tekla, комплексное решение для проектов, ун |
| After-sale Service: | Онлайн-техническая поддержка, установка на месте, обучение на месте, проверка на месте, поддержка ус | Service Life Time: | Более 50 лет |
Our modular multi-floor steel frame construction office buildings are modern, high-efficiency commercial building solutions designed for global corporate offices, institutional facilities, and comprehensive commercial projects. Delivered as a complete steel building kit, our multi-story steel office structures adopt factory prefabrication and on-site bolted assembly technology.
Featuring fast build reduced construction time, excellent structural durability, energy-saving performance and flexible layout, our steel frame office buildings have become the mainstream choice for modern green commercial construction worldwide. With standardized international steel materials, multi-layer safety protection, and full qualification certification, our products support custom design and layout to meet personalized architectural and functional demands of global clients.
To ensure ultra-high structural stability, load-bearing capacity and structural durability, we adopt globally recognized standard steel materials for all multi-floor steel office building frameworks, realizing full standardization and international compatibility.
The primary frame is constructed with high strength steel Q355B (China GB), which is equivalent to ASTM A572 Gr.50 / EN S355JR / JIS SM490. This high-toughness, high-strength steel material is specially optimized for multi-story building load and wind pressure resistance, ensuring the overall rigidity and stability of high-rise and multi-layer office buildings.
All secondary keels, support frames and auxiliary components adopt Q235B / ASTM A36 / EN S235JR / JIS SS400 international standard steel, with stable performance, strong versatility, and convenient overseas maintenance and replacement.
The whole building frame is composed of industrial-grade H section steel, high-precision welded beam and heavy-duty hot-rolled H-beam/box column. The combination of hot-rolled and welded steel components optimizes the structural force transmission system of multi-story buildings, effectively dispersing vertical and horizontal loads, and laying a solid foundation for long-term stable operation of the building.
| Category | Items | Specifications |
|---|---|---|
| Main Structure | Floors & Height | Low-rise; High-rise; Super high-rise (height limit compliant) |
| Span & Column Grid | Normal: 8-12m; Large span: 15-24m; Main beam: 8-12m; Secondary beam: 4-6m | |
| Structure Type | Low-rise: Steel frame; High-rise/super high-rise: Steel frame-brace/shear wall | |
| Core Components | Steel Columns | H/box section; Material: Q355B/Q235B |
| Steel Beams | H-section: H400*200-H800*300; Web: 8-16mm; Flange: 12-25mm | |
| Floor Slab | Composite profiled sheet; Total thickness: 130-220mm; Bearing capacity: ≥2.5kN/㎡ | |
| Performance Indicators | Seismic Resistance | Seismic intensity 6-8°; Grade 1-3; Interlayer drift angle ≤1/250 |
| Wind Resistance | Coastal: Typhoon 10-12 resistant; Wind load: 0.5-1.2kN/㎡ | |
| Fire & Corrosion Protection | Fireproof coating: 1.0-2.5h fire resistance; Anti-corrosion: ≥120μm (≥180μm for corrosive areas) |
Our modular multi-floor steel office buildings are professional wind seismic resistant earthquake proof structures, specially designed and calculated to reach grade 8 earthquake resistance standard. The flexible steel frame structure can effectively absorb and buffer seismic waves and strong wind impact, avoiding structural collapse and damage.
Compared with traditional buildings, our steel structures have stronger ductility and impact resistance, ensuring long-term safe use in earthquake-prone and strong wind areas, and greatly improving building safety factors.
Benefiting from the high-strength mechanical properties of Q355B steel, our buildings support column free clear span and wide span open space design. There is no need for dense intermediate columns inside the office area, which maximizes the indoor usable space.
Cooperated with flexible custom design and layout service, clients can freely partition offices, meeting rooms, reception halls and functional areas, perfectly adapting to modern office space planning and diverse commercial layout needs.
Adhering to energy efficient green construction concepts, our steel office buildings are equipped with professional fireproof insulated wall and roof panels. We provide multiple panel options including EPS/Rock wool/PU/PIR sandwich panel/Corrugated/Trapezoidal steel sheet.
These composite insulation panels integrate fireproof, heat insulation, waterproof and sound insulation functions, effectively isolating indoor and outdoor heat exchange, reducing HVAC energy consumption, realizing low-carbon and energy-saving operation, and meeting international green building evaluation standards.
All structural components of our steel building kit are fully prefabricated, pre-cut and pre-drilled in the factory, adopting pure bolted assembly for on-site installation, without complex welding and concrete curing procedures. It realizes fast build reduced construction time, shortening the overall project cycle by more than 60% compared with traditional buildings.
With professional anti-corrosion, rust-proof and surface treatment processes, the whole structure achieves 50+ year service life and excellent structural durability, minimizing later maintenance costs.
Our modular multi-floor steel frame construction features multiple application scenarios, covering civil, commercial and public infrastructure fields, fully adapting to different construction needs of global clients:
- Residential & Living Projects: apartment building, Villas
- Public Welfare Projects: school, Hospital
- Commercial Service Projects: hotels, commercial complex
- Corporate Facilities: multi-story office buildings, enterprise headquarters buildings, comprehensive office parks
We provide one-stop complete design-build service, covering project scheme design, structural calculation, drawing customization, factory production, international transportation, on-site installation guidance and after-sales maintenance.
From initial demand communication to final project delivery, we implement full-process tracking service, and support personalized custom design and layout according to local building codes, climate conditions and functional demands to ensure project compliance, practicality and aesthetics.
We strictly implement international manufacturing and management standards, with complete and authoritative qualification certifications to guarantee high-quality products for global projects:
- CE Certification (EN 1090-1): EU structural steel product mandatory certification, meeting EU construction safety standards
- ISO 9001 Quality Management System: Standardized whole-process quality control
- ISO 3834 Welding Quality System: Professional welding process quality certification to ensure structural welding accuracy and firmness
- ISO 14001 Environmental Management System: Green and environmentally friendly production, in line with global environmental protection standards
- ISO 45001 Occupational Health and Safety Management System: Standardized production safety management
- SGS audited: Passed international authoritative third-party inspection and audit, reliable quality
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