Commercial Steel Buildings｜Project Case Study

1. Project Basic Information(Quantified Core Data)

• Project Country: United States, Florida (coastal high‑salt marine environment)
• Building Area: 21600 ㎡
• Total Steel Consumption: 1860 metric tons
• Structure Type: Heavy‑duty portal rigid frame steel structure, 42 m clear large‑span, 16.5 m eave height, compatible with 50‑ton overhead heavy‑duty crane system
• Delivery Cycle: 105 days total (BIM design + factory fabrication + sea shipping); 48‑day on‑site erection guidance cycle
• Compliance Standards: AISC 360‑22, EN 1090‑2 EXC3, CSA S16‑19, ISO 12944‑5 coastal heavy anti‑corrosion system

2. Client Pain Points

The local general contractor met multiple tough bottlenecks before cooperation:

1. Large‑span heavy‑load requirement: Require 42‑meter column‑free inner space for multiple 50‑ton overhead cranes. Conventional steel solutions failed to satisfy deflection and load‑bearing requirements, bringing hidden safety risks.
2. Coastal salt‑fog corrosion risk: Atlantic coastal location, high humidity and salt spray, long‑term corrosion threat to steel members.
3. Strict local building codes: Complex US local industrial building approval documents, lack of engineering team familiar with AISC/EN1090 cross‑standard conversion.
4. Tight project timeline: Client needed to finish erection and put into production within 5 months, local fabricators could not match such schedule.
5. Drawing deepening difficulty: Original conceptual drawings existed structural collision defects; client had no professional team to complete fabrication‑level drawing deepening and calculation reports.

3. Customized One‑Stop Solution

Delivered full‑chain integrated service covering design, manufacturing, anti‑corrosion treatment, shipping and overseas technical guidance:

1. BIM digital design: Adopt Revit + Tekla BIM 3D modeling, finish structural simulation, clash detection, drawing deepening, output full set of calculation reports & erection manuals for local authority review.
2. Q460 high‑strength heavy steel: Main frame box columns and beams adopt Q460 heavy steel, meet large‑span heavy‑load mechanical performance requirements, optimize steel consumption without sacrificing safety margin.
3. Full‑automatic production line: CNC cutting, robotic automatic welding, shot‑blasting surface treatment, multi‑layer heavy‑duty anti‑corrosion coating, strictly follow international welding & painting specification.
4. Complete drawing deepening service: Provide fabrication drawings, connection node drawings, material list, third‑party inspection documents.
5. Overseas installation guidance: Dispatch professional field engineers for remote & on‑site erection guidance, standardize bolt connection and installation sequence for local construction crew.

4. Production & Delivery Reference Visual Points(For picture / short‑video material)

• Production workshop: CNC steel plate cutting scene, robotic automatic heavy‑steel welding station
• Surface treatment: Shot‑blasting cleaning, multi‑layer anti‑corrosion spray coating production line
• Loading & shipment: Heavy steel component container loading, sea‑freight outbound shooting
• BIM output: 3D model screenshot, clash‑check report sample, fabrication drawing preview

5. Final Project Outcome

• Completed real‑site building: Overall elevation real shot, full‑site aerial panoramic view
• Internal scene: 42 m zero‑column inner space, 50‑ton overhead crane running status
• Facade detail: Wall & roof panel installation detail, anti‑corrosion coating surface condition
• Acceptance result: Passed local third‑party inspection, fully compliant with AISC and CSA standards, factory officially put into production on schedule.

6. Cooperation Value Summary

1. Cost saving: Integrated design‑fabrication solution reduced client comprehensive procurement cost by 17 %, avoided rework loss caused by drawing defects.
2. Schedule optimization: Shortened overall project cycle by 32 %, helped client realize early commissioning.
3. Code compliance: Fully satisfied US local safety and energy‑saving building regulations, smooth official acceptance.
4. Long‑term durability: Heavy‑duty anti‑corrosion system delivers 30‑year anti‑corrosion guarantee for main steel frame, greatly lowers later‑stage maintenance investment.

7. Customer Testimonial(English, for website & brochure)

“We are impressed with this commercial steel‑building project. Their BIM engineering team solved our large‑span load and drawing‑deepening obstacles efficiently. Q460 heavy‑steel fabrication and anti‑corrosion workmanship meet AISC and CSA requirements perfectly. The whole order was shipped on schedule, and overseas installation guidance supported our local crew well. The finished building satisfies our heavy‑crane operation and coastal‑environment demands completely. We will keep long‑term strategic cooperation for our upcoming steel‑structure projects.” ——Project Director, US Local General Contractor