Prefabricated House Overall Lifting Plan

The overall lifting plan for prefabricated houses requires systematic planning from five aspects: project overview, construction preparation, construction steps, safety measures, and selection factors to ensure construction safety and efficiency.

1. Project Overview

The overall lifting of prefabricated houses aims to hoist prefabricated modules from the ground to designated positions for assembly. It offers advantages such as short construction periods, stable quality, environmental protection, and energy efficiency, making it suitable for various scenarios including residential and commercial buildings. The core is to achieve rapid and precise building installation through standardized modular design combined with professional lifting techniques.

2. Construction Preparation

1. Personnel Preparation: Form a professional team including a project manager, technical supervisor, construction workers, safety officers, and lifting operators. Ensure they undergo professional skills training and safety education to guarantee standardized operations.
2. Material Preparation:
   • Prefabricated modules should be prefabricated in advance according to design drawings, with quality meeting standards.
   • Select lifting equipment such as cranes, steel wire ropes, pulleys, and lifting straps that match the module weight.
   • Equip construction tools including wrenches, screwdrivers, and electric drills.
3. Site Preparation:
   • The site should be flat and solid to meet crane operation requirements.
   • Set up safety warning lines to delineate construction and non-construction areas.
   • Plan temporary power lines to ensure electrical safety.
4. Technical Preparation:
   • Prepare a detailed construction plan, specifying steps, technical requirements, and precautions.
   • Conduct technical briefings for construction personnel to ensure they understand the plan content.

3. Construction Steps

1. Module Transportation: Use dedicated transport vehicles to secure modules and prevent damage during transportation.
2. Module Positioning: Use tools such as level gauges and theodolites to determine installation positions according to design drawings.
3. Lifting Preparation:
   • Select a crane based on module weight and develop a lifting plan.
   • Check the integrity of lifting equipment to ensure steel wire ropes are not worn and pulleys rotate smoothly.
   • Reconfirm the setup of safety warning lines.
4. Module Lifting:
   • Slowly lift the module to the designated height and move it steadily to the installation position.
   • Adjust the module's posture using pulleys and lifting straps to avoid collisions.
   • Slowly lower the module to ensure a stable landing.
5. Module Connection: Install connectors according to design drawings and use tools to tighten bolts to ensure structural stability.
6. Construction Acceptance: Inspect the structural safety of the house and record the construction process for archiving.

4. Safety Measures

1. Personnel Safety: Construction personnel must wear safety helmets and safety belts. Unauthorized personnel are prohibited from entering the construction area, and regular safety training should be conducted.
2. Equipment Safety: Regularly inspect lifting equipment to ensure smooth operation and avoid overloading.
3. Environmental Safety: Set up drainage ditches and other facilities to prevent water accumulation from affecting construction.

5. Selection Factors

The lifting method should comprehensively consider factors such as the grid type, site conditions, equipment capacity, and project duration. For example, steel structures can adopt high-altitude assembly methods, overall installation methods, or high-altitude sliding methods, with the specific choice depending on structural characteristics and construction resources.