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Steel Structure & PEB Division
Bongshai Engineering & Construction provides turnkey Pre-Engineered Steel Buildings (PEB) across Bangladesh. We utilize automated CNC fabrication lines to deliver AISC-compliant clear-span industrial sheds, heavy crane gantry girders, and multi-story composite structural steel frames.
Last updated: August 8, 2026 • Reviewed & Approved by SMA Awal, Chief Engineer, Bongshai Engineering & Construction
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What turnkey steel building engineering services do we offer in Bangladesh?
Bongshai Engineering & Construction is a contractor in pre-engineered steel buildings (PEB) and heavy structural steel erection. Operating state-of-the-art CNC submerged arc welding (SAW) lines, automatic H-beam assembly machines, and high-capacity mobile cranes, we deliver earthquake-resistant, high-wind load clear-span structures for industrial manufacturing plants, logistics hubs, and commercial high-rises.
What are our core steel engineering specializations?
Clear-Span Pre-Engineered Buildings
Tapered built-up primary rigid frames engineered for spans exceeding 60 meters without intermediate columns, optimizing interior floor space for manufacturing and assembly operations.
High-Rise Composite Steel Structures
Multi-story commercial steel frames utilizing heavy hot-rolled H-columns, metal deck composite concrete slab flooring, shear stud connections, and seismic bracing.
EOT Crane Runway Gantry System
Integrated crane bracket systems, heavy crane runway girders, and rail alignment designed for 10-Ton to 50-Ton overhead Electric Overhead Traveling (EOT) cranes.
Industrial Warehouses & Logistics Hubs
Heavy floor load distribution sheds, automated rack supported storage building framing, dock leveler pits, and wide canopy overhangs for all-weather loading.
High-Performance Roof & Wall Cladding
0.47mm AZ150 Galvalume standing seam metal roof sheets, Polyurethane (PU) sandwich panels, Rockwool insulation, and polycarbonate skylight ridge monitors.
Heavy Pipe Racks & Transmission Towers
Latticed structural steel pipe bridges for process plants, chemical refineries, electrical utility substation structures, and lattice telecommunication towers.
How does PEB steel compare to conventional RCC structures?
| Feature Parameter | Bongshai PEB Steel System | Conventional Concrete (RCC) |
|---|---|---|
| Execution Speed | 50% Faster Setup (Factory Prefabricated) | Slower (Requires In-situ Curing Time) |
| Clear-Span Capability | Up to 75m Unobstructed Clear-Span | Limited (Requires Frequent Columns) |
| Seismic Resistance | High Ductility & Light Self-Weight | Heavy Dead Load (Increased Lateral Forces) |
| Building Code Standard | AISC 360, MBMA 2010, AWS D1.1 | BNBC 2020 / ACI 318-19 |
What is a featured benchmark project for our PEB division?
Akij Group & Kazi Farms Heavy Industrial PEB Complexes
Successfully engineered, fabricated, and erected over 120,000 sq. ft. of heavy industrial clear-span PEB factory buildings and grain silo handling structures. Included 25-Ton crane gantry girders, mezzanine decking, and insulated galvalume roofing systems.
What do clients frequently ask about our PEB steel structures?
What steel grade is used in Bongshai PEB primary frames?
Primary built-up rigid frames utilize high-yield ASTM A572 Grade 50 (345 MPa) steel plates. Cold-formed secondary purlins and girts utilize ASTM A653 Grade 50 steel.
How are PEB steel joints inspected for quality assurance?
All factory welds undergo Ultrasonic Testing (UT) or Magnetic Particle Testing (MPT) per AWS D1.1 standards. Field connections utilize ASTM A325 high-strength structural bolts torqued to specified values using calibrated torque wrenches.
Bongshai E&C delivers this service across all 64 districts of Bangladesh — see our full service coverage area.
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Other business units
- Civil Infrastructure
- RCC Building Construction
- Architectural Construction
- Industrial Construction
- Electrical, Power & Energy
- Heavy Rigging & Lifting
Bongshai E&C delivers this service across all 64 districts of Bangladesh. See the service coverage area.