Seismic Braces

Seismic - Rigid Brace Overview 01

(Full OPM)

1) Rigid Brace Member

Maximum Horizontal FP Force (lbs) ASD at 45° from Horizontal

Brace Member OPM Capacities

Notes:

  1. The above table only shows capacities at a 45° angle. These braces may be used for other angles between 0° and 60° from horizontal. Refer to the OPM pages for capacities at those angles. Links are provided with each channel below.
  2. These values apply only to Unistrut brand products. Unistrut channels are stamped with the name "UNISTRUT".

 


2) Brace Fittings

FP Load Capacities (lbs)

Brace Fitting OPM Capacities

Notes:

  1. Use with P3860 base.
  2. Use with LS 100 base.
  3. Use with LS 200 base.
  4. All angles above are from horizontal. All loads are based on use with a 1/2" or larger fastener and connected per one of the connection details outlined below.

Standard

For Channel

(OPM Page 5c.1)

 

Standard

For Telespar

(OPM Page 5c.1)

 

Standard

For Channel

(OPM Page 5c.1)

 

Standard

For Telespar

(OPM Page 5c.1)

 

Retrofit

For Channel

(OPM Page 5c.2)

 

Retrofit

For Telespar

(OPM Page 5c.2)

 

Retrofit

For Channel

(OPM Page 5c.2)

 

Retrofit

For Channel

(OPM Page 5c.3)

 

Retrofit

For Telespar

(OPM Page 5c.3)

 

Retrofit

For Channel

(OPM Page 5c.3)

 

Punch Clamp

For Channel or Pipe

(OPM Page 5c.5)

 


3) Connection Details

Connection Detail - Brace Bolted to Channel-01

Brace Bolted to Channel

(OPM Page 5a.1)

3" Min. End Distance

  • FP Transverse = 1,370 lbs
  • FP Longitudinal = 1,035 lbs (640 lbs opp.)
  • FP Vertical = 2,810 lbs
  •  

    Connection Detail - Brace Bolted to Channel w Wolf Washer-01

    Brace Bolted to Channel

    (OPM Page 5a.2)

    Flush to End

  • FP Transverse = 2,375 lbs
  • FP Longitudinal = 935 lbs (640 lbs opp.)
  • FP Vertical = 2,605 lbs
  •  

    Connection Detail - Brace Around Rod to Channel-01 v2

    Brace Around Rod to Channel

    (OPM Page 5a.3)

    3" Min. End Distance

  • FP Transverse = 1,370 lbs
  • FP Longitudinal = 1,035 lbs (640 lbs opp.)
  • FP Vertical = 2,810 lbs
  •  

    Connection Detail - Brace Around Rod to Channel 2-01

    Brace Around Rod to Channel

    (OPM Page 5a.4)

    Flush to End

  • FP Transverse = 2,375 lbs
  • FP Longitudinal = 935 lbs (640 lbs opp.)
  • FP Vertical = 2,605 lbs
  •  

    Connection Detail - Brace Around Rod thru Channel-01

    Brace Around Rod Thru Channel

    (OPM Page 5a.5)

    1-1/2" Min. End Distance

  • FP Transverse = 1,565 lbs
  • FP Longitudinal = 935 lbs (640 lbs opp.)
  • FP Vertical = 2,068 lbs
  •  

    Connection Detail - Rod thru Channel-01

    Rod Thru Channel

    (OPM Page 5a.6)

    Flush to End

    • FP Vertical = 2,068 lbs
    Connection Detail - Rod to Channel Standard-01

    Rod to Channel

    (OPM Page 5a.7)

    3" Min. End Distance

    • FP Vertical = 2,065 lbs
    Connection Detail - Rod to Channel w Wolf Washer-01

    Rod to Channel

    (OPM Page 5a.7)

    Flush to End

    • FP Vertical = 2,065 lbs

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