Hoisting and Fixing Methods for Construction Waste Chutes

The construction waste chute is installed on the exterior wall or structure of a building; hoisting and fixing are key steps. Longkang offers various hoisting and fixing methods to suit different engineering conditions. This article explains in detail.

1. Hoisting Methods
2. Manual Hoisting (Low-rise)

• Applicable: height ≤10 m
• Method: manually lift with ropes
• Personnel: 2–3 people
• Tools: ropes, hook
• Advantage: no tower crane required
• Disadvantage: working-at-heights risk

2. Tower Crane-Assisted Hoisting (High-rise)

• Applicable: height >10 m
• Method: tower crane lifts one section into position
• Personnel: 2 ground crew + 2 floor crew
• Advantage: safe and efficient
• Note: must not affect normal tower crane operations

3. Electric Hoist Hoisting

• Applicable: inside elevator shaft or dedicated track
• Method: electric hoist lifts along the track
• Advantage: continuous operation
• Suitable for: super high-rise buildings and long-term use

1. Classification of Fixing Methods
2. External Scaffold Fixing (Most Common)

• Utilize scaffolding or external scaffold
• Connect clamps to external scaffold uprights
• Applicable: main structure construction phase
• Advantage: no need to anchor into the structure
• Disadvantage: needs re-fixing as the external scaffold is dismantled

2. Structural Anchor Fixing

• Anchor into structural beams or walls with chemical anchors
• Applicable: after external scaffold removal or for permanent fixing
• Advantage: firm and reliable
• Disadvantage: requires a structural surface
• Anchor specification: M12 chemical anchor

3. Triangular Bracket Fixing

• Weld triangular brackets onto the structure
• Fix clamps onto the brackets
• Applicable: chute is far from the structure
• Advantage: highly adaptable

4. In-Elevator-Shaft Fixing

• Utilize the elevator shaft
• Fix brackets to the shaft wall
• Applicable: indoor chute
• Advantage: does not affect the facade

III. Fixing Point Layout

1. Fixing Point Spacing

2. Fixing Point Positions

• At the clamp seat in the middle of each section
• Fixing points must be provided at buffer sections
• Fixing points must be provided at elbow sections
• Reinforced fixing at the bottom

3. Fixing Point Load

• Each fixing point bears: chute self-weight + waste weight + wind load
• Safety factor ≥3
• Anchor tensile resistance ≥10 kN

1. Clamp Installation
2. Clamp the clamp seat onto the middle of the chute
3. Wrap the clamp steel band around
4. Connect to the fixed bracket
5. Tighten the bolts
6. Insert rubber pads between clamp and chute (anti-slip, anti-wear)
7. Wind Load Reinforcement
8. Guy Ropes

• Provide guy ropes every 20 m on super high-rise chutes
• Diagonally tie to the structure
• Reduce chute sway

2. Lateral Braces

• Provide lateral braces every 15 m
• Connect to adjacent structures
• Restrict chute displacement

1. Fixing Quality Inspection
2. All fixing points firm
3. Chute does not wobble
4. Anchor pull-out test (sampling inspection)
5. Chute stable under wind load
6. Check for looseness daily

VII. Longkang Fixing Solutions

1. Recommend fixing methods based on building conditions
2. Provide fixing point layout drawings
3. Supply matching clamps, anchors, and brackets
4. On-site installation guidance
5. Acceptance inspection of fixing firmness