AutoTight® by Commins
Manufacturing, Inc.
The Continuous Rod Holdown System
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   AutoTight® CAT Equivalents for TDS43
(Additional Equivalents Available for Specific Requirements)
Required Loads per Simpson Catalog Form C-ATS05 Expires 1/31/07
2003 IBC Runs     1997 UBC Runs
 
CAT 4-57 (T42)
   Reqd  Tension Diff.
Level  Load  Load Load
   lbs  Rod Plate
4 3,790 6,136 3,790
     R5 S8
3 3,790 6,136  
     R5  
2 8,540 12,026 7,830
    R7 S8
1 11,620 12,026  
    R7  
CAT 4-57 (T42)

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CAT 4-57 (T42)
   Reqd  Tension Diff.
Level  Load  Load Load
   lbs  Rod Plate
4 5,060 8,181 5,060
    R5 S8
3 5,060 8,181  
    R5  
2 11,380 16,035 10,440
    R7 S12
1 15,500 16,035  
    R7  
CAT 4-57 (T42)

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Two Take-Up Device Equivalent     Two Take-Up Device Equivalent
       
CAT 4-567 (T4321)
   Reqd  Tension Diff.
Level  Load  Load Load
   lbs  Rod Plate
4 3,790 6,136 3,790
     R5 S8
3 3,790 6,136 0
     R5 S8
2 8,540 8,836 4,750
    R6 S8
1 11,620 12,026 3,080
    R7 S8
CAT 4-567
(T4321)

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Under Construction

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Information

    
CAT 4-567 (T4321)
   Reqd  Tension Diff.
Level  Load  Load Load
   lbs  Rod Plate
4 5,060 8,181 5,060
    R5 S8
3 5,060 8,181 0
    R5 S8
2 11,380 11,781 6,320
    R6 S8
1 15,500 16,035 4,120
    R7 S8
CAT 4-567
(T4321)

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Under Construction

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for further
Information
Take-Up Device Every Level
 Required by Many Structural Plans		     Take-Up Device Every Level
Required by the City of San Diego
Embedments
(under construction)		    
Compression Trimmers
Douglas Fir-Larch
 Hem-Fir
 
 
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Copyright 2005  Commins Manufacturing, Inc., Friday Harbor, WA 98250, Tel (360) 378-9484
 

AutoTight® Rod Holdown Systems and components are covered by one or more of the following U.S. Patents 6,390,747; 6,585,469; 6,625,945, other patents both foreign and domestic are pending.