Joint Star Steel Structure Ltd. delivers full-lifecycle pre-engineered steel buildings, heavy structural fabrication, and insulated sandwich panel envelopes for global industrial manufacturing plants, cold stores, logistics distribution hubs, and commercial complexes.
Industrial Factory A multi-span, clear-span pre-engineered production shed engineered for large equipment layouts, overhead crane runways, and energy-saving high-bay daylighting systems.
Logistics Warehouse Designed with optimized modular bay spacing, heavy-duty mezzanine floor integrations, and deep cantilever canopies for high-frequency freight vehicle docking operations.
Heavy Fabrication Engineered to support heavy gantry cranes (20-ton capacity) with custom built-up plate columns, high-strength bolted connections, and heavy structural bracing.
Cold Storage An airtight, thermal-bridge-free cold storage facility featuring high-density PU sandwich panels with cam-lock tongue-and-groove jointing systems for temperature stability.
Fire-Rated Facility Specified for high-risk industrial storage featuring non-combustible rock wool core sandwich panels achieving up to 2 hours fire resistance integrity under international codes.
Modular Space Engineered as a lightweight structural steel extension installed atop existing concrete structures without imposing excessive dead loads, fully insulated with EPS panels.
From initial structural modeling to site erection and certified commissioning, our project management protocol guarantees structural safety, timely project delivery, and verifiable QA/QC documentation.
Every building project is engineered with 3D structural calculation models. Wind, seismic, crane, and live loads are computed under AISC 360, AISI, and BNBC guidelines to minimize steel consumption while maintaining high safety factors.
In-house CNC flame and plasma cutting machines, automatic submerged arc welding (SAW) lines, and precision flange straightening equipment guarantee tight fabrication tolerances compliant with AWS D1.1 structural welding requirements.
Comprehensive quality inspections including steel plate ultrasonic testing, non-destructive testing (NDT) of critical moment weld seams, dry film thickness (DFT) paint gauging, and trial assembly fitment checks before shipping.
All fabricated primary columns, rafters, secondary cold-formed Z/C purlins, and sandwich panels are marked with distinctive alphanumeric tags according to erection drawings, bundled with edge protection for global container shipping.
Our experienced site engineers and riggers manage mobile cranes, high-altitude torque wrench calibration for Grade 8.8 / 10.9 structural bolts, and perimeter safety nets to complete fast-track erections without site incidents.
Upon installation completion, we deliver full documentation packs including as-built architectural drawings, material test certificates (MTCs), warranty papers, and ongoing maintenance guidelines for the building owner.
Rigorous adherence to international building specifications ensures high durability, structural safety, and thermal efficiency across all project installations.
| Engineering Aspect | Design Standards & Codes | Material Specifications | Typical Industrial Application |
|---|---|---|---|
| Primary Structural Framing | AISC 360, AWS D1.1, BNBC Chapter 6 | ASTM A572 Grade 50 (Fy = 345 MPa), ASTM A36 | Industrial factories, clear-span warehouses, overhead crane sheds |
| Secondary Framing (Purlins/Girts) | AISI Cold-Formed Steel Spec, ASTM A653 | Z & C Sections, Pre-galvanized (275 g/m² zinc coating) | Roof purlins, side wall girts, door headers, framed openings |
| EPS Insulated Cladding | ASTM C578, ISO 9001 certified core | 0.40 - 0.50mm PPGI skins, 14-18 kg/m³ expanded polystyrene | Cost-effective factories, dry warehouses, modular offices, site camps |
| PU (Polyurethane) Cladding | ASTM C591, EN 13165 / B2 Flame Retardant | 40 - 42 kg/m³ rigid PIR/PUR, thermal conductivity 0.022 W/m·K | Temperature-controlled cold stores, seafood/meat processing, pharma facilities |
| Rock Wool Fire Barrier | ASTM C612, BS 476 Part 20/22 (Class A1) | 100 - 120 kg/m³ basalt mineral wool, 120-min fire resistance | Firewalls, chemical warehouses, high-occupancy production floors |
| Bolts & Connection Fasteners | ASTM A325 / ASTM A490, ISO 898-1 | Grade 8.8 / 10.9 high-tensile structural bolts, EPDM self-drilling screws | Moment frames, column splices, baseplate anchoring, weatherproofing |
Critical project management and technical details for industrial buyers, procurement directors, and civil engineering consultants.
All structural engineering and fabrication drawings conform strictly to AISC (American Institute of Steel Construction), AWS D1.1 (Structural Welding Code), ASTM material specifications, and the Bangladesh National Building Code (BNBC). Seismic, cyclone wind speed (up to 210 km/h), and dead/live load calculations are rigorously simulated in Tekla Structures and STAAD.Pro.
Yes. Our export packages include piece-marked structural steel members, shop-applied protective coatings, prefabricated insulated panels cut to length, high-strength hardware sets, and comprehensive erection drawings for seamless overseas on-site assembly.
Our factory enforces multi-stage QA/QC procedures including raw steel mill test certificates (MTC), ultrasonic and radiographic weld testing according to AWS guidelines, dry film thickness (DFT) paint testing, and trial assembly verification prior to dispatch.
A standard project timeline spans approximately 8 to 12 weeks: 2 weeks for structural analysis and approval drawings, 4 to 6 weeks for automated CNC fabrication and panel production, and 3 to 4 weeks for rapid on-site erection and panel cladding.
Partner directly with Joint Star Steel Structure Ltd. for verified engineering calculations, competitive factory pricing, and certified installation of pre-engineered steel buildings and insulated panels.
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