High-bay racking (usually referring to palletized or automated racking with a height of ≥5 m) is currently the most commonly used type of automated warehousing.
1. Height and Module
Starting Height: ≥5 m is required to be considered a "high-bay rack" in the industry; mainstream designs range from 8–24 m, with some exceeding 30 m.
Tier Height Module: Upright hole spacing is 50 mm or 75 mm, adjustable; common beam heights are 1350 mm, 1500 mm, and 1800 mm.
Compatible Pallets: 1200 × 1000 mm and 1200 × 800 mm are preferred; cantilever height should be ≤ 1/5 of the pallet depth to prevent uneven loading.
2. Structural Composition and Key Components
Columns: Cold-rolled special-shaped C-steel or H-steel, anchored at the bottom with M16 expansion bolts (concrete ≥ C20, embedment depth ≥ 100 mm).
Crossbeams: Hooks at both ends + safety pins; heavy-duty beams can also be rigidly bolted.
Stabilizing Components: Horizontal braces, diagonal braces, scissor braces; horizontal tie rods are required for heights above 20 m.
Protective Components: Column foot guards (H 300–500 mm), walkway crash barriers, fall protection nets, pallet support beams.
3. Safety Inspection and Maintenance
Installation Accuracy: Single column verticality ≤ 1 mm/m; overall cumulative ≤ 20 mm (20 m height).
Inspection Frequency: Daily inspection (deformation, safety pins), monthly inspection (bolts), annual inspection (verticality, deflection); more frequent inspections are required in areas with high forklift traffic and cold storage environments.
European Standard/Chinese Standard: Load and seismic calculations should be performed according to EN 15512-2019 and EN 15620 during the design phase; domestic reference is GB/T 27924-2011.
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