Tower Crane Dismantling Method Statement 🔖

Tower Crane Dismantling Method Statement

Introduction

The following method statement outlines the procedures for the safe dismantling of a tower crane. The crane in question is a [insert crane model, e.g., Liebherr 630 EC], with a height of [insert height, e.g., 80 meters] and a lifting capacity of [insert lifting capacity, e.g., 10 tons]. The crane is located at [insert location, e.g., a construction site in downtown city]. The dismantling work will be carried out by a team of experienced personnel from [insert company name, e.g., Crane Solutions Ltd.].

Scope of Work

The scope of work includes the complete dismantling of the tower crane, including the tower, slewing unit, jib, and counter jib. The work will be carried out in accordance with the manufacturer's instructions, relevant industry standards, and applicable regulations.

Pre-Dismantling Checks

Before commencing dismantling work, the following checks will be carried out: tower crane dismantling method statement

1. Weather Conditions: The weather conditions will be checked to ensure that the dismantling work can be carried out safely. No work will be carried out in adverse weather conditions, such as high winds, thunderstorms, or heavy rain.
2. Crane Condition: The crane will be inspected to ensure that it is in a safe condition for dismantling. This includes checking for any damage, wear, or corrosion on the crane's structural components, as well as ensuring that all electrical and hydraulic systems are functioning properly.
3. Site Conditions: The site will be inspected to ensure that it is safe for dismantling work. This includes checking for any obstacles, overhead power lines, or other hazards that could interfere with the dismantling work.

Dismantling Sequence

The dismantling work will be carried out in the following sequence:

Step 1: Preparation (Duration: 1 day)

1. The crane will be secured to prevent any movement during dismantling.
2. The jib and counter jib will be lowered to the ground and secured.
3. The slewing unit will be locked in place to prevent any rotation.

Step 2: Removal of Jib and Counter Jib (Duration: 2 days)

1. The jib and counter jib will be disconnected from the slewing unit.
2. The jib and counter jib will be lowered to the ground using a mobile crane or a hydraulic crane.
3. The jib and counter jib will be removed from the site.

Step 3: Dismantling of Slewing Unit (Duration: 2 days)

1. The slewing unit will be disconnected from the tower.
2. The slewing unit will be lowered to the ground using a mobile crane or a hydraulic crane.
3. The slewing unit will be removed from the site.

Step 4: Dismantling of Tower (Duration: 3 days) Weather Conditions : The weather conditions will be

1. The tower will be divided into sections using a hydraulic cutter or a bandsaw.
2. Each section will be lowered to the ground using a mobile crane or a hydraulic crane.
3. The tower sections will be removed from the site.

Step 5: Removal of Foundation Equipment (Duration: 1 day)

1. The foundation equipment, including the foundation bolts and anchorages, will be removed.
2. The foundation will be made good to its original condition.

Safety Measures

The following safety measures will be implemented during the dismantling work:

1. Personal Protective Equipment (PPE): All personnel involved in the dismantling work will wear the required PPE, including hard hats, safety glasses, gloves, and steel-toed boots.
2. Fall Protection: Fall protection equipment, including harnesses and lanyards, will be used to prevent falls from heights.
3. Load Control: Load control measures will be implemented to prevent loads from swinging or falling during lifting operations.
4. Fire Safety: Fire safety equipment, including fire extinguishers, will be on site.

Environmental Considerations

The following environmental considerations will be taken into account during the dismantling work:

1. Noise Control: Noise control measures will be implemented to minimize noise disturbance to nearby residents and wildlife.
2. Dust Control: Dust control measures will be implemented to minimize dust generation during dismantling work.
3. Waste Management: All waste generated during dismantling work will be disposed of in accordance with relevant regulations.

Quality Control

The following quality control measures will be implemented during the dismantling work:

1. Inspection and Testing: All equipment and tools used during dismantling work will be inspected and tested regularly.
2. Supervision: The dismantling work will be supervised by experienced personnel.
3. Documentation: All dismantling work will be documented, including photographs and written records.

Emergency Procedures

The following emergency procedures will be in place during the dismantling work:

1. First Aid: A first aid kit will be on site, and a first aid trained person will be available.
2. Fire Emergency: A fire emergency plan will be in place, including evacuation procedures and fire extinguisher locations.
3. Accident Reporting: All accidents will be reported and investigated in accordance with relevant regulations.

Conclusion

The tower crane dismantling work will be carried out in accordance with the manufacturer's instructions, relevant industry standards, and applicable regulations. The work will be carried out by a team of experienced personnel, and all necessary safety measures will be implemented to ensure a safe and successful dismantling operation.

Phase 3: Dismantle the Counter-Jib

• Step 3.1: Remove counterweights first, using the mobile crane or the tower crane’s own hoist (if still powered). Each weight is lifted individually.
• Step 3.2: Attach mobile crane to the counter-jib lifting points.
• Step 3.3: Remove counter-jib retaining bolts/pins.
• Step 3.4: Lift and lower the counter-jib to ground.

1. Scope & Objectives

This method statement covers the safe dismantling of the tower crane after its service life on site. Dismantling will proceed in reverse sequence of erection, using a mobile crane of sufficient capacity (or a derrick/jib crane if required). The procedure ensures the tower crane components are lowered safely, no uncontrolled releases occur, and personnel are protected from falling objects, crushing, and other hazards. Dismantling Sequence The dismantling work will be carried

1. Scope & Objective

This method statement covers the safe dismantling of a [Insert Crane Model] tower crane from a [Insert Site Address] construction site. The objective is to reduce the crane to manageable components using a mobile assist crane (or climbing crane/jib crane method) with zero incidents.

8. Post-Dismantling Close Out

• Inspect all components for damage before transport.
• Update site drawings (crane removed).
• Debrief team: what went well, what to improve.
• Dispose of oils/greases per environmental regulations.

Step 3: Dismantle the Jib (Main Boom)

• Attach the mobile crane’s hook to the designated lifting point on the jib.
• Apply tension (just 1-2 tons) to take the weight.
• Remove the jib foot pins and tie-bolts.
• Lift & lower: Carefully slew the jib down to a prepared ground rigging area.
• Alternative: For self-erecting cranes, the jib is often telescoped down hydraulically.

Step 4: Remove the Counter-Jib & Machinery Deck

• With the main jib on the ground, attach the mobile crane to the counter-jib.
• Disconnect electrical, hydraulic, and slew ring connections.
• Lift and lower to ground.