GB/T 10054-2005 Construction Hoist Standard Guide
GB/T 10054-2005 "Construction Hoists" is the product standard governing construction hoists used in building works. It specifies the type classification, technical requirements, test methods, inspection rules, and marking, packaging and transportation requirements for rack-and-pinion and wire rope construction hoists intended for moving personnel and materials on construction sites.
Scope of Application and Standard Positioning
GB/T 10054-2005 classifies construction hoists into three types: rack-and-pinion (SC), wire rope (SS), and hybrid (SH). Rack-and-pinion hoists use an electric motor to drive a gear that meshes with a rack fixed to the guide rail mast, moving the cage up and down along the mast. This design delivers safe and reliable operation with lifting heights up to 300 m and above, making it the dominant type in modern construction. Wire rope hoists use a winch to raise and lower the cage via steel wire rope, offering a simpler structure and lower cost, but with lifting height limited by the traction capability (typically ≤100 m), making them suitable for low- and mid-rise construction. Hybrid hoists are used for special working conditions.
Key parameters specified by the standard include rated load capacity (five grades from 0.5 to 3.2 t: 500, 800, 1000, 2000, and 3200 kg), rated passenger capacity (determined by load rating, typically 6 to 24 persons for personnel hoists), rated lifting speed (0.3 to 1.0 m/s for fixed-speed models, or 0 to 0.6 m/s for Variable Frequency Speed Control models), mast section height (standard 1508 mm or custom), maximum lifting height (20 to 300 m), and cage dimensions (width 1.3 to 1.5 m, depth 2.5 to 3.2 m, height 2.2 to 2.5 m).
Structural Safety and Material Requirements
The standard's structural and material provisions cover the guide rail mast (welded truss of seamless or square steel tube mast sections, Q345B (≈S355J2) steel and above, with installation perpendicularity deviation ≤1/1000), the rack (45# steel or 40Cr, quenched and tempered to HB280–320, gear accuracy grade ≥8), the cage (welded frame of steel plate and sections, with an emergency exit on the roof), mast section connection bolts (Grade 10.9 High-Strength Bolts, M24 at approximately 800 N·m), and tie-in frames for the guide rail mast (mandatory above 15 m, spaced at intervals ≤9 m). The drive must incorporate at least two drive gears (dual-drive configuration) so that if one gear fails, the other can still drive the hoist. Kelude offers supporting services for construction hoists of all models.
Safety Devices, Testing and Inspection
The standard mandates the following safety devices: an anti-fall safety device (the most critical component, which automatically brakes the cage when its descending speed exceeds 1.3 times the rated speed, with a braking distance ≤300 mm), an upper limit switch (automatically cuts power and applies the brake when the cage reaches the upper travel limit), a lower limit switch, door interlocks (the cage cannot start unless all doors are closed), an overload protector (alarms and prevents startup at loads above 110% of rated load), and an Emergency stop switch. The prescribed tests include the No-Load Test (three full up-and-down cycles), the Rated Load Test (100% SWL, with brake slip distance ≤100 mm), the Overload Test (one full cycle at 1.25 times rated load), and the anti-fall safety device test (triggered under no-load conditions to measure braking distance).
| inspection items | technical requirements | test method | Standard Clause |
|---|---|---|---|
| No-Load Test | Full Travel Lifting3Cycles | Smooth Operation | §6.1 |
| rated load | Braking Droop≤100mm | Full Travel3Cycles | §6.2 |
| Overload Test | 1.25Times Full Travel1Cycles | Nonepermanent deformation | §6.3 |
| Anti-Drop Test | braking distance≤300mm | No-load Trigger | §6.4 |
| type test | Per2Year1Cycles | Including UTSampling Inspection | §6.5 |
| safety device | Actuation Condition | Actuation Effect | inspection interval |
|---|---|---|---|
| anti-fall safety device | speed>1.3Times Rated | Braking≤300mm | 3Month/1Year |
| Up Limit switch | Cage at Top Limit | Cutoff Power Supply | Perinstallation |
| Door Interlock Device | Door Not Closed | Start Prohibited | Daily |
| overload protector | >110%Times Rated | Alarm and Start Lockout | Monthly |
| Emergency stop | Press | Main Power Cutoff Power Supply | Daily |
Standard Comparison and Application Recommendations
GB/T 10054-2005, GB/T 34026 (anti-fall safety device for construction hoists), and GB/T 3811 (crane design specification) are interrelated in their safety device requirements. The anti-fall safety device on a construction hoist is its most critical safety component — it activates automatically when the descent speed of the cage exceeds 1.3 times the rated speed, reliably braking the cage to a stop on the guide rail mast. The device must undergo a manual drop test every 3 months, be sent for verification annually, and be scrapped and replaced after more than 5 years of cumulative service or more than 200 activations.
In practice, every time a construction hoist is installed (i.e., after being relocated to a new site), a comprehensive installation acceptance inspection must be carried out, including a manual drop test of the anti-fall safety device. The verticality deviation of the guide rail mast must not exceed 1/1000 of the total height — this must be measured and recorded using a theodolite or total station after each installation. Kelude offers supporting services for all models of construction hoists.
Related Standards: GB/T 3811-2008 Crane Design Specification — Key Clause Interpretation: Load, Structure, Mechanism, Electrical, and Safety Systems · GB/T 28264-2017 Safety Monitoring and Management System for Lifting Appliances — 9 Mandatory Monitoring Items and System Architecture
Related Standards
FAQ
Q: How does the anti-fall safety device on a construction hoist work?
A: It operates on the "centrifugal speed-triggered cone brake" principle: centrifugal weights mounted on the gear shaft extend outward when rotational speed exceeds the set threshold (i.e., when the cage descent speed surpasses 1.3 times the rated speed), overcoming spring tension. This pushes the conical friction drum into contact with the brake ring, generating braking torque that brings the cage to a controlled stop on the guide rail mast. The braking distance is typically 150–300 mm, with progressive deceleration to avoid injury to occupants.
Q: What is the fundamental difference between a construction hoist and an elevator?
A: A construction hoist is used temporarily on building sites (the guide rail mast is extended as construction progresses), operates at lower speeds (0.3–1.0 m/s), handles heavier loads (up to 3.2 t), uses rack-and-pinion drive (no machine room required), and relies on a mechanically triggered anti-fall safety device. An elevator is permanently installed, operates at higher speeds (1.0–2.5 m/s), carries lighter loads (typically ≤1.6 t), and uses steel wire rope traction. Construction hoists are subject to stricter safety requirements.
Q: What are the consequences of a guide rail mast verticality deviation exceeding 1/1000?
A: Excessive verticality deviation creates lateral forces during cage travel, leading to poor meshing between the rack and drive pinion, increased friction between the cage guide rollers and the rails, and compromised braking performance when the anti-fall safety device is triggered. More critically, structural instability can occur under wind load and eccentric cage loading. Verticality must be measured with a theodolite or total station after every installation.
Q: How often should the anti-fall safety device be verified?
A: A manual drop test must be performed every 3 months (triggering the device under no-load conditions to check braking distance and braking stability). Every year, the device must be sent to a qualified inspection body for a full performance verification, including trigger speed calibration, braking torque measurement, and wear inspection. The device must be scrapped and replaced after more than 5 years of cumulative service or more than 200 activations.
