Large Span Prefabricated Metal Storage Buildings Steel Structure Storage Warehouse
Large Span Prefabricated Metal Storage Buildings
,Prefabricated Metal Storage Buildings
,Large Span Steel Structure Storage Warehouse
| Design Dimension | Key Points | Technical Details |
|---|---|---|
| Structural Safety | Seismic/wind resistance, dynamic load optimization, fire and corrosion protection | BRB dampers, wind tunnel testing; fireproof coating (≥2h) + hot-dip galvanizing. |
| Material Selection | High-strength steel, lightweight envelope, eco-friendly materials | Q355B steel (yield strength≥355MPa); polyurethane panels (fire rating B1); recycled steel usage≥30%. |
| Prefab Component Design | Large-span modular design, standardized joints, transportation segmentation | 40m-span trusses; bolted-welded hybrid joints; segments≤15m (transport height≤4.5m). |
| Energy Efficiency | Natural ventilation/lighting, PV systems, rainwater recycling | Skylights (≥20% coverage); PV efficiency≥22%; underground rainwater storage≥150m³. |
| Construction Quality | High-precision prefabrication, on-site assembly management, digital acceptance | BIM modeling (±3mm); UT for welds (coverage≥40%); 100% bolt torque inspection. |
- Seismic & Wind Resistance: Buckling-Restrained Braces (BRBs) and flexible frames dissipate seismic energy; wind tunnel tests validate load distribution.
- Dynamic Load Design: Simulate crane loads (e.g., 50t overhead cranes) and stacking loads per GB 50009-2012, ensuring joint fatigue life≥50 years.
- Fire & Corrosion Protection: Apply intumescent coatings (fire resistance≥2h) and hot-dip galvanizing + epoxy coatings for harsh environments.
- Main Steel: Q355B steel (tensile strength 470-630MPa) for primary structures; cold-formed steel (1.5-3mm thickness) for lightweight needs.
- Envelope System: Polyurethane panels (thermal conductivity≤0.024W/m*K) with rock wool insulation (density≥100kg/m³).
- Eco-Materials: Recycled steel (recovery rate≥30%) and solvent-free epoxy flooring (VOC≤50g/L) reduce carbon footprint.
- Large-Span Modularization: 40m-span trusses or space frames maximize storage space (clear height≥10m).
- Standardized Joints: Predefined joint catalogs (e.g., rigid beam-column connections) cut welding time by 25%.
- Transportation & Assembly: Segments≤15m with temporary bracing; on-site assembly error≤3mm.
- Passive Design: Skylights (≥20% coverage) and smart louvers reduce HVAC energy use by 40%.
- Renewable Energy: Monocrystalline PV panels (≥300kW*h/day) and ground-source heat pumps cover 30%+ energy demand.
- Resource Recycling: Bolted connections and precast foundations enable 95%+ material recovery at end-of-life.
- Factory Prefabrication: Laser cutting (±1mm) and robotic welding ensure component consistency.
- On-Site Management: BIM + 3D scanning monitors installation; column verticality≤H/1000, beam ≤L/1500.
- Acceptance Standards: Per GB 50205-2020: Welds: UT≥40%, MT full coverage; Bolts: 100% torque inspection, preload error≤±10%.
- Building Dimension: Length*width*height, eave height, roof type etc.
- Doors and windows: Dimension, quantity, position to put them if you have your own requirements.
- Local climate: Wind speed, snow load, earthquake etc.
- Insulation material for roof and wall: Sandwich panel or single metal sheet.
- Crane if have: Do you need crane beam inside the steel structure? And its capacity.
- If have other requirements, such as fire proofing, isolated roof, roof ventilation and daylighting etc, please kindly inform us.
- Every one week meeting for Quality Audit to solve the weakness during processing and procedures
- Every two weeks meeting for employee training.
- Producing as to the International Steel Structure Standard with ISO 9001 Quality Control System
- Each project, every 1 months, connect with clients for feedback and complaints, then improve the quality control actions.
- Quality inspection report for every process during production. Ensure 100% good quality products.
| Item | Description | Your Input |
|---|---|---|
| 1 | Location (where will be built?) | _____country, area |
| 2 | Size: length*width*height | _____mm*_____mm*_____mm |
| 3 | wind load (max. wind speed) | _____kn/m2, _____km/h, _____m/s |
| 4 | snow load (max. snow height) | _____kn/m2, _____mm |
| 5 | anti-earthquake | _____level |
| 6 | brickwall needed or not | If yes, 1.2m high or 1.5m high |
| 7 | thermal insulation | If yes, EPS, fiberglass wool, rockwool, PU sandwich panels will be suggested; if not, the metal steel sheets will be ok. The cost of the latter will be much lower than that of the former |
| 8 | door quantity & size | _____units, _____(width)mm*_____(height)mm |
| 9 | window quanity & size | _____units, _____(width)mm*_____(height)mm |
| 10 | crane needed or not | If yes, _____units, max. lifting weight____tons; max. lifting height _____m |