The use of seismic brackets is becoming increasingly widespread. They play a crucial role in controlling the vibration of facilities and limiting the displacement of auxiliary mechanical and electrical (M&E) systems. After seismic reinforcement, building M&E systems such as water supply and drainage, fire protection, and heating can better withstand earthquakes, reducing damage and preventing secondary hazards. Ultimately, this contributes to minimizing casualties.
1. Water Supply and Fire Protection Piping Systems
For all domestic water supply and fire protection pipe systems with a diameter of DN65 or larger, seismic brackets must be installed every 12 meters. These brackets control vibration and limit displacement, ensuring that reinforced plumbing and fire protection systems can withstand seismic forces, thereby reducing damage and preventing secondary disasters.
2. Lateral and Longitudinal Bracing Requirements
For piping systems with DN65 or larger, a lateral seismic bracket should be installed every 12 meters, and a longitudinal seismic bracket should be installed every 24 meters. This ensures both side-to-side and front-to-back stability during an earthquake.
3. Air Duct Systems
All air duct systems with a diameter of 0.7 meters or larger require the installation of a lateral seismic bracket every 9 meters and a longitudinal seismic bracket every 18 meters. This provides robust support to maintain duct integrity during seismic events.
4. Electrical Systems
For electrical conduits with an inner diameter of 60 mm or larger, as well as cable trays, ladder racks, junction boxes, and bus ducts with a weight of 150 N/m or greater, installers must install lateral seismic brackets every 12 meters and longitudinal seismic brackets every 24 meters. This practice ensures the stability of power systems under earthquake conditions.
5. Special Considerations for Renovation Projects
For retrofitting existing buildings, engineers should reduce the spacing between seismic brackets for all systems by half. This adjustment ensures that older installations receive adequate reinforcement to meet current seismic safety standards.
Seismic brackets are no longer just an optional reinforcement—they protect both infrastructure and human lives. As regulations and engineering practices advance, the industry will standardize their application in modern construction projects.
For more details on installation and specifications, visit our official product page or contact our technical support team for personalized assistance.
