Publish Time: 2026-01-20 Origin: Site
When an earthquake strikes, our focus is typically on whether the building structure is robust. However, the mechanical and electrical (MEP) systems suspended overhead—such as pipes, cable trays, and air ducts—can be equally devastating if not properly secured. They may fall and injure people, rupture causing floods or gas leaks, or even disable fire protection and smoke exhaust systems, severely hindering post-earthquake rescue efforts. Seismic bracing systems are precisely the customized "safety belts" for a building's MEP systems.
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1. What is a Seismic Bracing System?
It is a specialized support system designed to protect building MEP facilities (plumbing, fire protection, HVAC, electrical, etc.) during an earthquake. Through scientific mechanical design, when an earthquake occurs, the seismic bracing system restricts displacement of the attached MEP facilities, controls facility vibration, and transfers loads to the load-bearing structure. This provides reliable protection for the MEP facilities against seismic action from any horizontal direction. It effectively limits pipeline displacement, preventing equipment from falling and pipes from rupturing. It can achieve the seismic fortification goal of "no damage in minor earthquakes, repairable in moderate earthquakes, and no collapse in major earthquakes," avoiding secondary damage.
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2. Why is Installation Mandatory?
The national standard "Code for Seismic Design of Mechanical and Electrical Systems in Buildings" (GB 50981-2014) was officially implemented on August 1, 2015. The code mandates in its mandatory provision 1.0.4 that "seismic design is required for building mechanical and electrical engineering in regions with seismic precautionary intensity of 6 degrees and above." This means critical pipeline systems in buildings such as hospitals, schools, residential buildings, and commercial complexes must be equipped with this seismic "armor."
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3. 3H Building Hardware Seismic Bracing & Hanging Products
Offers comprehensive solutions for all scenarios, from single-pipe and multi-pipe to air duct and cable tray applications, supporting pipe diameters from DN65 to DN300 and various layouts.
Complies with the technical requirements of the national standard GB/T 37267-2018 "General Technical Conditions for Seismic Bracing and Hanging Systems in Buildings". The seismic bracing systems undergo comprehensive testing, including appearance, dimensions and tolerances, coating thickness, load-bearing performance of seismic connecting components, load-bearing performance of pipeline connecting components, cyclic loading performance, fatigue performance, fire resistance, and corrosion resistance.
Channels and connectors are treated with electro-galvanizing/hot-dip galvanizing for long corrosion-resistant life.
Utilizes prefabricated components and modular design, supporting on-site adjustments to enhance construction efficiency.
Technical teams can assist with seismic force calculations, layout design, and installation guidance to ensure the entire system is compliant and effective.
① Seismic Pipe Bracing & Hanging System ZD-KS (Three-pipe, DN065-DN200) Lateral
② Seismic Cable Tray Bracing & Hanging System ZD-KQ (Single Tray, B=400-3500) Lateral
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4. Application Scenarios
Fire Protection Piping: Ensures the fire protection system operates normally during an earthquake.
Ventilation & Smoke Control/Exhaust Systems: Safeguards escape routes.
Cable Trays: Prevents short circuits that could cause fires.
Gas Pipelines: Mitigates the risk of leaks and explosions.
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Seismic bracing and hanging systems are the "invisible guardians" hidden above ceilings, unseen in daily life. They bear not only the weight of the pipes but also a reverence for and responsibility towards life. When unpredictable tremors strike, this line of defense, built with precision steel, intelligent design, and strict standards, becomes the final barrier protecting lives and property.