Seismic Restrained Spring Isolators & Rubber Mounts
In non-structural design, seismic restrained spring isolators and rubber mounts are essential components for HVAC systems such as chillers, cooling towers, and pumps. These devices provide effective vibration isolation while also offering protection during earthquakes.
By combining vibration isolators with restraining features, these mounts help protect mechanical equipment from earthquakes, while providing vibration isolation during normal operation. The housing of these isolators is typically made from steel and is designed to withstand lateral earthquake forces.
What Are Seismic Mounts?
Seismic isolators (or mounts) limit the movement of equipment. They combine isolation with restraint. All-directional mounts are crucial for non-structural components like mechanical equipment that require both vibration control and protection from earthquakes.
Vibration Isolation and Seismic Restraint Combined
In modern non-structural design, it’s important to obtain both isolation and restraint together. Seismic restrained isolators provide a combination of these two functions, allowing equipment to remain stable during both operational vibrations and seismic events. This is especially critical in applications where high winds or earthquake loads are expected.
Seismic Snubber or Vibration Isolator? Actually, both :)
To protect your equipment, you don’t need to us both a seismic snubber and a vibration isolator together. Because these mounts provide both functions. This way, you ensure comprehensive protection against both shock and vibration.
Specifications for Seismic Spring Isolators and Rubber Mounts
The specifications for seismic spring and elastomeric mounts include several key factors, such as deflection capacity and housing stability. These mounts must meet specific building codes and standards like ASHRAE and IBC to be compliant. The steel housing shall be properly coated for corrosion resistance.
Carefully calculate deflection and lateral movement to ensure that the mounts can handle the expected seismic load. Additionally, make sure the assembly of these mounts includes bolts and anchors to withstand the horizontal force of an earthquake.
Assembly and Installation of Seismic Spring Mounts
Proper assembly and installation of seismic spring mounts are crucial to ensure their effectiveness during a seismic event. The installation process must follow detailed guidelines to guarantee that the isolators are correctly positioned. Bolts should be securely fastened, and welds may be required for additional stability.
Use steel members and anchor points to support the equipment for ensuring that it remains laterally stable. Ensuring proper installation also includes checking that the deflection is within the specified range to provide the necessary seismic isolation.
Watch our YouTube videos to see how to do it.