Fixed Anchorage

Larger imageVertical Seismic Bracing

Source: Noson, Perbix, SSD


To secure computer equipment and other furniture and equipment located on the raised access floors.


Typical equipment to anchor or brace:

  • Main frame
    • Processors
    • Power distribution unit
    • Coolant distribution unit
    • Control console
  • Large storage facilities
  • Telecommunications equipment
  • Cabinets
  • Air handling units


Verify that internal components have low vulnerability to vibrating motion. If internal components require vibration isolation, provide motion isolators in accordance with the manufacturer’s requirements.

Larger imageThrough-Floor Anchor System

Source: Noson, Perbix, SSD


Install seismic bracing or anchors for computer equipment with the following characteristics:

    Height is greater than 2-1/2 times the base width.

    Closely spaced or less than 18" apart on ground floor.

Consult a structural engineer for design of bracing or anchors.

©2017 SCEC Southern California Earthquake Center @ USC