AutoTight® by Commins
Manufacturing, Inc.
The Continuous Rod Holdown System
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   AutoTight® CAT Equivalents for TDS3HS
Required Loads per Simpson Catalog Form C-ATS05 Expires 1/31/07
2003 IBC Runs     1997 UBC Runs
 
CAT 3-7HS8HS (T31)
   Reqd  Tension Diff.
Level  Load  Load Load
   lbs  Rod Plate
3 17,670 24,053 24,050
    R7HS S24
2 24,050 24,053  
    R7HS  
1 31,410 31,416 7,360
    R8HS S8
CAT 3-7HS8HS (T31)

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CAT 3-7HS8HS (T31)
   Reqd  Tension Diff.
Level  Load  Load Load
   lbs  Rod Plate
3 23,560 32,070 32,070
    R7HS S22
2 32,070 32,070  
    R7HS  
1 41,880 41,888 9,810
    R8HS S8L
CAT 3-7HS8HS (T31)

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Two Take-Up Device Equivalent     Two Take-Up Device Equivalent
       
CAT 3-6HS7HS8HS (T321)
   Reqd  Tension Diff.
Level  Load  Load Load
   lbs  Rod Plate
3 17,670 17,672 17,670
    R6HS S19
2 24,050 24,053 6,380
    R7HS S8
1 31,410 31,416 7,360
    R8HS S8
CAT 3-6HS7HS8HS
(T321)

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CAT 3-6HS7HS8HS (T321)
   Reqd  Tension Diff.
Level  Load  Load Load
   lbs  Rod Plate
3 23,560 23,563 23,560
    R6HS S19
2 32,070 32,070 8,510
    R7HS S10
1 41,880 41,888 9,810
    R8HS S10L
CAT 3-6HS7HS8HS (T321)

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Take-Up Device Every Level
 Required by Many Structural Plans		     Take-Up Device Every Level
Required by the City of San Diego
       
CAT 3-8HS (T3)
   Reqd  Tension Diff.
Level  Load  Load Load
   lbs  Rod Plate
3 17,670 24,544 31,410
    R10 L32
2 24,050 24,544  
    R10  
1 31,410 24,544  
    R10  
CAT 3-8HS (T3)

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CAT 3-8HS (T3)
   Reqd  Tension Diff.
Level  Load  Load Load
   lbs  Rod Plate
3 23,560 41,888 41,880
    R8HS Special
2 32,070 41,888  
    R8HS  
1 41,880 41,888  
    R8HS  
CAT 3-8HS (T3)

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Single Take-Up Device Equivalent     Single Take-Up Device Equivalent
Embedments
(under construction)		    
Compression Trimmers
Douglas Fir-Larch
 Hem-Fir
 
 
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