What to Do with Prefabricated Panel Houses During Earthquakes

Prefabricated panel houses need to take comprehensive measures such as emergency shelter, daily prevention, and reinforcement to ensure safety during earthquakes.

Emergency Shelter During Earthquakes

1. Take Cover Immediately: When an earthquake occurs, immediately seek shelter under a sturdy table, bed, or other furniture. Protect your head and neck with pillows, soft cushions, or other items to avoid being hit by falling objects. Do not hide near windows, mirrors, large furniture, or hanging objects, as these items are prone to collapse or break during shaking.
2. Avoid Evacuation Misconceptions: If you are in a high-rise building, do not use elevators or jump out of the building during the earthquake. Wait for the shaking to stop, then protect your head with your hands and quickly evacuate to an open area along the stairs, staying away from buildings, utility poles, and other objects that may collapse.

Daily Prevention and Seismic Reinforcement

1. Professional Inspection and Assessment: For old prefabricated panel houses (especially those built before the 1980s), it is recommended to commission a professional agency to conduct a seismic inspection to determine whether their seismic capacity meets local design standards (such as a seismic intensity of 6-7 degrees). The inspection results can guide subsequent reinforcement or renovation decisions.
2. Targeted Reinforcement Measures:
   • Steel Structure Reinforcement: Enhance the overall rigidity and ductility of the building by adding steel frames or reinforced concrete walls, reducing torsional deformation during earthquakes.
   • Floor Integrity Enhancement: Pour concrete or lay steel mesh at the joints of prefabricated panels to strengthen the floor connection and avoid misalignment risks.
   • Wall and Foundation Treatment: Thicken exterior walls, add lateral supports, or perform grouting on the foundation and expand the foundation area to prevent structural damage caused by uneven settlement.
   • Application of Seismic Isolation Technology: Install seismic isolation bearings at the foundation level to absorb seismic energy through a flexible isolation layer and reduce the vibration amplitude of the upper structure.

Special Scenario Considerations

1. High-Intensity Earthquake Zones: If the house is located in an earthquake-prone area or an area with a low design standard (such as a seismic intensity of only 6 degrees), priority should be given to implementing reinforcement measures and regularly checking the structural safety.
2. Post-Earthquake Emergency Response: If the house shows obvious cracks, tilts, or unusual noises after an earthquake, evacuate immediately and contact professionals for assessment. Do not return to live there without authorization.

The seismic capacity of prefabricated panel houses is significantly affected by the construction year, design standards, and maintenance conditions. By adopting scientific shelter measures and proactive reinforcement, the seismic risk can be significantly reduced.