Structural bracing engineered for seismic events

Is your facility prepared for seismic activity? Safeguard your mechanical, electrical and plumbing systems with G-STRUT® Seismic Bracing Systems, brought to you by Gregory Strut. These specially engineered components are designed to brace structural elements together during seismic events to prevent unanticipated damage and loss. Talk to an experienced member of our team to configure your G-STRUT® Seismic System today.

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Shop G-STRUT® Seismic

Explore our seismic bracing solutions, designed to support your commercial hanging systems with versatility and reliable performance.

Seismic Brace

Trapeze with Transverse Brace

Trapeze with Transverse & Longitudinal Brace

Double Trapeze with Transverse Brace

Double Trapeze with Transverse & Longitudinal Brace

Single Pipe with Transverse Brace

Single Pipe with Transverse & Longitudinal Brace

Single Duct with Transverse Brace

Single Duct with Transverse & Longitudinal Brace

Regular Spring Channel Nuts with Studs

Mini Channel Nuts for Mini Strut

EZ NUTS for all Channels

Double Conveyor Adjusting Nut

Seismic Rod Stiffener

Square Washer

No-turn Square Washer

90 Angle Fittings Two-hole Connection Angle

Two-hole Adjustable Hinge

Three-hole Adjustable Hinge

Four-hole Adjustable Hinge

Product Details

Electrical Equipment

What should be restrained with G-STRUT® Seismic?

Battery racks
Bus ducts
Cable trays
Conduit
Electrical panels
Electrical raceways
Generators
Light fixtures
Motor control centers
Switch Gear
Transformers
Variable frequency drives

Mechanical Equipment

What should be restrained with G-STRUT® Seismic?

A/C units
Air distribution boxes
Air handling units
Air separators
Boilers
Cabinet heaters
Chillers
Compressors
Computer room A/C units
Condensing units
Cooling towers
Ductwork
Fans (all types)
Fan coil units (suspended)
Fan terminal units
Heat exchanges
Piping
Pumps (all types)
Rooftop units
Sound attenuators
Tanks (all types)
Unit heaters
Water heaters

Finishes

Pre-Galvanized

Aluminum

Hot-Dipped Galvanized

Black/Plain

Galvannealed

Yellow Zinc (Gold)

Electrogalvanized

PVC Coated

Powder Coat (Green)

Stainless

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Frequently Asked Questions

What is seismic strut used for?

Seismic strut is a code-compliant type of metal framing channel used in seismic bracing systems. It can be combined with a variety of braces, nuts, and other fittings to support suspended components like pipes, conduit, and cable trays. Seismic strut is designed to withstand the forces experienced during seismic events to keep MEP systems secure.

Does G-STRUT® Seismic meet building code requirements?

Yes. G-STRUT® Seismic components are manufactured for use in seismic bracing assemblies that comply with ASCE 7-16 standards. Code compliance depends on the proper engineering and installation of each project. View our G-STRUT® Seismic catalog for seismic coefficients and specifications for each G-STRUT® Seismic component.

How is seismic bracing different from standard strut?

Standard strut channel is suitable for general support and framing applications where seismic load is not a design factor. For high-risk structures, seismic framing channel provides stability and resistance to dynamic and lateral forces. Code-compliant seismic bracing systems require additional components compared to standard strut channel framing systems.

Where is seismic support required?

Seismic support is necessary for Seismic Design Categories E and F. Design requirements are determined by the IBC and ASCE 7 standards using factors including occupancy, soil conditions, life-safety systems, and other details. Areas with severe seismic hazard risk include parts of Alaska, California, Oregon, and Washington.

Can G-STRUT® Seismic be used in non-seismic regions?

Yes. While seismic bracing systems are required by code in certain regions and structures, G-STRUT® Seismic components can be used in areas of lower risk as well. G-STRUT® Seismic offers enhanced support in strut assemblies for MEP and other critical systems, even if not required by code.