This site is in an archived state. The content remains accessible as a public resource.

This site was developed with support from the Federal Emergency Management Agency

Installing Seismic Restraints for Mechanical Equipment (FEMA 412)

Vibration Isolation and Seismic Control Manufacturers Association (VISCMA) logoThis illustrated guide, produced by the Vibration Isolation and Seismic Control Manufacturers Association (VISCMA) for FEMA, shows equipment installers how to attach mechanical equipment to a building to minimize earthquake damage. Many examples using anchoring and seismic restraint devices are included. The guide begins with a list of various types of equipment and includes a chart that identifies the equipment, the recommended configuration for restraint, and the type of attachment needed. The second section provides examples of attachment types with instructions for installing equipment in different configurations. The third section provides examples of anchors, showing various types of anchors used to connect equipment to a building. The fourth section presents special cases, including housekeeping pads, cable assemblies, supports for control panels, and residential equipment. Step-by-step instructions and special precautions are given for each type of equipment, the method for installing the equipment, and the attachement type needed. The guide does not cover non-building structural framing required to elevate equipment above the floor. (2004, 1.7MB pdf)

Click here to download document.icon