Steel Structure Office Building

Steel Structure Office Building

Our Steel Structure Office Building is a pre-engineered structural steel system engineered for low-to-mid-rise commercial and industrial administration facilities. Fabricated in-house from primary hot-rolled/welded H-beams and secondary cold-formed Z/C purlins, the system delivers unobstructed clear-span floor plans up to 30 meters.
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Description

Technical Parameters

Our Steel Structure Office Building is a pre-engineered structural steel system engineered for low-to-mid-rise commercial and industrial administration facilities. Fabricated in-house from primary hot-rolled/welded H-beams and secondary cold-formed Z/C purlins, the system delivers unobstructed clear-span floor plans up to 30 meters.
Designed strictly in accordance with target destination building codes (IBC, ASCE 7, Eurocode), each building arrives as a pre-punched, bolt-together kit that eliminates on-site welding, cuts structural erection time by 40% compared to conventional concrete, and integrates seamlessly with standard curtain walls, metal wall panels, and MEP utilities.

 

Key Features

 
01/

Unobstructed Clear Span: Frame designs eliminate interior load-bearing columns, allowing flexible office layouts and future partition reconfigurations.

02/

Rigid Code Compliance: Engineered to withstand specified local wind speeds (up to 180 km/h), seismic zones (Seismic Design Category D), and roof snow loads up to 2.5 kN/m².

03/

Precision Prefabrication: CNC laser cutting, automated H-beam welding lines, and robotic hole-punching ensure millimeter-level site assembly tolerances.

04/

Integrated Envelope Performance: Compatible with high-density PIR/Rockwool sandwich panels achieving thermal transmittance (U-value) down to 0.18 W/m²K.

05/

Manufacturing Control: Fabricated in our 80,000 m² ISO9001/ISO3834 certified structural steel plant, equipped with CNC plasma cutters and shot-blasting surface treatment lines.

 

Technical Specifications

 

 

Parameter

Specification Standard

Primary Framing Steel

Q355B (Equivalent to ASTM A572 Gr. 50 / S355JR)

Secondary Framing

Galvanized C/Z Purlins (Q235B / Q355B, Hot-dip galvanized ≥ 275 g/m²)

Roof & Wall Cladding

50mm - 150mm PIR / Rockwool Sandwich Panels or Single Skin with Blanket Insulation

Surface Treatment

Shot-blasting to Sa2.5 + Epoxy Zinc-rich Primer + Polyurethane Topcoat (Total DFT ≥ 120 μm)

Design Life

50+ Years under routine maintenance

Fire Resistance Rating

Up to 2 Hours (via intumescent paint or spray-applied fireproofing)

Connection Type

High-strength friction grip bolts (Grade 10.9 / 8.8)

 

Layout & Configuration Options

 

 

Single-Storey Open Office: Optimized for rapid deployment, site camps, and administrative units.


Multi-Storey Corporate Facility (2–4 Floors): Incorporates composite floor decks (profiled steel deck with cast-in-place concrete) and internal steel staircases.


Span Configurations: Single-span, multi-span, and lean-to combinations tailored to specific plot dimensions.


Facade Integration: Designed to anchor structural sub-framing for glass curtain walls, stone-wool composite panels, or aluminum composite panels (ACP).

 

Applications

 

Industrial Park Administration Blocks:

Central offices adjacent to manufacturing plants or logistics warehouses.

Corporate Headquarters:

Low-rise commercial office parks requiring fast-track construction schedules.

Remote Site Operational Hubs:

Mining, oil & gas, and infrastructure base camps requiring robust, weather-resistant workspaces.

Commercial Leasing Buildings:

Scalable multi-tenant office structures built for rapid return on investment.

 

 

Customization Options

 

 

Structural Engineering: Custom load calculations for rooftop HVAC units, solar PV panel arrays, and overhead crane integration (up to 10 tons).


Thermal & Acoustic Insulation: Variable panel thickness (50mm to 200mm) and acoustic ceiling baffle attachment points.


Door & Window Openings: Pre-engineered framed blockouts for commercial storefront glass doors, automatic sliding doors, and security-rated windows.


Mezzanine Additions: Partial or full second-floor additions with design live loads of 3.0 kN/m² to 5.0 kN/m².

 

Installation & Delivery

 
Pre-Assembly Labelling:

Every column, rafter, purlin, and brace is stamped with a unique alphanumeric identification matching the erection drawings.

Packaging & Logistics:

Steel members are bundled on steel skids to prevent transit deformation; panels and fasteners are packed in sea-worthy waterproof containers.

Installation Support:

Supplied with comprehensive installation manuals, 3D erection sequencing diagrams, and optional on-site technical supervisors for local contractor guidance.

 

Quality Control

 

 

Raw Material Traceability: Mill test certificates (MTC) provided for all structural steel plates and sections confirming chemical composition and yield strength.


Weld Inspection: Non-Destructive Testing (NDT) performed via Ultrasonic Testing (UT) and Magnetic Particle Testing (MT) on 100% of full-penetration butt welds by AWS/CSWIP certified inspectors.


Dimensional Verification: Trial assembly of primary column-to-beam connection nodes conducted in the factory prior to surface coating to verify bolt-hole alignment.

 

Frequently Asked Questions

 

 

Q: How do you ensure compliance with our local North American or European building codes?

A: Each structure is engineered using localized calculation software based on exact site coordinates, accounting for regional snow loads, wind exposure categories, and seismic zone requirements. Detailed calculation books and PE/SE-stamped drawings can be provided upon request.

Q: What is the typical lead time from order confirmation to site delivery?

A: Production generally requires 4 to 6 weeks following drawing approval, depending on project scale and raw material availability. Ocean freight transit time varies by destination port (typically 3–4 weeks to North American ports, 4–5 weeks to European ports).

Q: Can this steel structure office building be expanded in the future?

A: Yes. The bolted rigid-frame design allows end-walls to be easily disassembled and extended, or adjacent spans to be added with minimal structural disruption to existing operations.

Q: How is corrosion prevented for coastal or humid environments?

A: All structural carbon steel undergoes abrasive shot-blasting to surface cleanliness standard Sa2.5, followed by a multi-layer coating system comprising an epoxy zinc-rich primer, epoxy micaceous iron oxide intermediate coat, and an aliphatic polyurethane topcoat. Hot-dip galvanizing is also available for extreme corrosive environments.

Q: What foundation type is required for this steel building?

A: The building requires reinforced concrete pier foundations or a perimeter grade beam with anchor bolts embedded according to our engineered anchor bolt layout plan. Anchor bolts and templates are shipped in advance of the main structural framework.

Q: Do you provide on-site installation services?

A: We supply detailed step-by-step erection manuals, detailed shop drawings, and remote engineering support. For complex multi-storey projects, certified structural supervisors can be dispatched to assist your local construction crew on-site.

 

Request a Quote

 

 

To receive an accurate proposal for your steel structure office building project, please provide the following parameters:
1.Dimensions: Length × Width × Eave Height (meters or feet)
2.Floor Levels: Single-storey or multi-storey (number of floors)
3.Site Loading Data: Local design wind speed, ground snow load, and seismic zone
4.Cladding Preference: Sandwich panel thickness and material (PIR, Rockwool)
5.Target Port of Delivery: Destination seaport or project site zip code

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