Seismic Bracing

1.  Attach seismic bracket to ceiling structure with appropriate anchor as per manufacturers instructions, and structural engineers recommendations.

2.  Fit retro-fit bracket to existing primary support. Ensure seismic restraint washer is included, and bracket orientation is in-line with the brace.

3.  Pass wire rope through the Zip-Clip seismic locking device.

4.  Feed on additional PVC sleeve.

5.  Loop wire through the available hole in the retrofit bracket and position PVC sleeve against the through-hole.

6.  Feed wire back into Zip-Clip seismic locking device.

7.  Apply tension by hand.

8.  Coil excess wire and secure to the main brace, if necessary trim excess leaving 150 mm tail.

GENERAL PRINCIPLES

• Braces should always be installed as opposing pairs.
• Wire rope should not be in contact with anything along the brace length.
• Brace angles from the horizontal should not exceed 60 degrees.
• Anchor brackets should be installed in-line with the brace.
• Square plate washers should be utilised to secure retrofit brackets along with restraint washers where available.
• Where no square washer is available, a seismic restraint washer must be used along with the
retrofit bracket.

SPACING GUIDELINES

Seismic design standards require that non-structural services must be braced at regular intervals. Appropriate brace spacings must be determined by a qualified structural engineer.

Longer lengths available on request