Purpose To anchor battery sets in the emergency power system. Source: Noson, Perbix, SSD Recommendation Anchor battery sets to the building with bolts. Supplies Required Angle—3″ x 3″ x 3/8″ […]

Purpose To prevent damage or injury from wires. Caution Exterior wires that are located overhead pose a hazard to anyone exiting a building during an earthquake. Recommendations Exterior Wires To […]

Purpose To secure pendant-mounted lights or doublehung fluorescent lights. Note Replace glass globes with unbreakable substitutes. Vertical support for the light should consist of wire, alongside cord, to the structure […]

The Problem Unbraced acoustic-tile ceiling systems can shake loose during earthquakes. Heavy light fixtures and duct vents are particularly hazardous to occupants if they are not properly connected to the […]

Purpose To secure filtration tanks. Caution When anchoring to post-tensioned slab, locate and avoid reinforcing. Recommendation Anchor filtration tanks. Supplies Required Expansion bolts (various sizes) Steel plate—1/4″ x 8″ x […]

Purpose To brace ducts. Recommendation Provide transverse and longitudinal bracing in accordance with theSMACNA Seismic Restraint Manual Guidelines for Mechanical Systems. Supplies Required Steel angles—size varies with ducts Machine bolts—1/2″ […]

Purpose To secure HVAC units mounted on vibration isolators. Caution When anchoring to post-tensioned slab, locate and avoid reinforcing. Recommendation Install restraint brackets or seismic snubbers. Supplies Required Angle—6″ x […]

Purpose To secure emergency power systems. The emergency power system can include the following elements: Motor generator set Battery set Fuel supply tank Muffler Electric cable Power transfer unit Seismic […]

Purpose To secure access floors. Recommendation Install braces and anchor the existing pedestals. When floor height exceeds 12″, install a steel brace to every third pedestal 8′ on center. Supplies […]

Purpose To secure communication equipment racks. Caution The weight of the rack and equipment should not exceed 250 pounds. When anchoring to post-tensioned slab, locate and avoid reinforcing. Recommendation Racks […]