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SSTB® Anchor Bolts

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The SSTB is designed for maximum performance as an anchor bolt for holdowns and Strong-Wall® shearwalls. Extensive SSTB testing has been done to determine the design load capacity at a common application, the garage stem wall. Design loads are based on a series of five tests, with a three-times reduction factor. SSTB14 is a 5/8" diameter anchor bolt designed and tested specifically for shallow foundation installations.

Special Features:

Material: ASTM A36

Finish: None. May be ordered HDG; contact Simpson.

Installation:

top Gallery:
  roll over images below to see larger image
 
Identification on the bolt head showing embedment angle and model.
   
SSTB16L
(others similar)
U.S. Patent 5,317,850
SSTB16
(others similar see footnote #8 below)
  SSTB14
(others similar)
U.S. Patent 5,317,850
SSTB14
Installation Detail

Typical SSTB Installation in Concrete Foundation
Maintain minimum rebar cover, per ACI-318 concrete code requirements.

Typical SSTB Installation with Mudsill and Holdown Two Pour Installation (SSTB20, 24 and 34) Typical SSTB Installation in Grouted Concrete Block
 
topPlan view of SSTB Placement in Concrete:
  roll over images below to see larger image
 
Corner Installation
(Install with arrow on top of the bolt oriented as shown)
Non-Corner Installation
(Bolt may be installed @ 45° to 135° as shown)
Corner Installation
(Install with arrow on top of the bolt oriented as shown)

topTypical Plan Views of Rebar Installation:
  roll over images below to see larger image
 
Corner Installation Continuous Stemwall End Wall
(See footnote 4)
'

top Load Table: See code report listings below

Table
See Typical Plan Views of Rebar Installation: for installation details
  1. Loads may not be increased for short-term loading. Loads apply to earthquake and wind loading.
  2. Minimum anchor center-to-center spacing is 2le for anchors acting in tension at the same time for full load.
  3. The SSTB was tested in a stem wall with a minimum amount of concrete cover.
  4. Use full table load when installed 24" from the end or installed in a corner condition (see illustrations). When used 5" from the end of a concrete foundation (see end wall graphic), the maximum allowable load is 9045 lbs. for SSTB28, 9585 lbs. for SSTB34 and 36 bolts, and table loads for all other models (these loads are not Code listed - contact Simpson for test data).
  5. PHD and HTT minimum end distance is 4 3/8".
  6. Order the SSTBL models (ex. SSTB24L) for longer thread length (16L = 5 1/2", 20L = 6 1/2", 24L = 6", 28L = 6 1/2"). SSTBL and SSTB loads are the same. Not available on SSTB14.
  7. SSTB34 has 4 1/2" of thread and SSTB36 has 6 1/2". These two models are not available in SSTBL versions.
  8. Use 90% of the table load for 2000 psi concrete.
  9. Allowable load for SSTB14 is 5020 lbs. when f'c = 3000 psi.
  10. Minimum end distance required to achieve table loads is le.
top Loads for SSTB14:

3000 psi compressive strength concrete = 5020 lb
2500 psi compressive strength concrete = 3835 lbs

Note: assumes a 9" stemwall, 4 1/2" minimum end distance and 1 3/4" minimum edge distance


top Selection Guide (Per Anchor Bolt Diameter)
Table
  1. SSTBL models are recommended for PHD, HDU and HDQ8 holdowns on 2 - 2x and 3x sill plates. Where SSTB14's are specified for these products, use SSTB16L.
  2. No cold joint within embedment depth unless provisions are made to transfer the load.
  3. The design engineer may specify an alternate anchorage system, provided the anchor diameter is the same.
  4. Increase the embedment depth 2 1/2" to accommodate the HDC standoff block.
  5. Where noted the allowable load for this application is limited to 4600 lbs. which is less than the published loads for these holdowns.
  6. Where noted the allowable load for single pour is limited to 5175 lbs. which is less than the published loads for these holdowns.
  7. SSTB14 can be used for this application with a 9" stemwall width.
top Code Reports (PDFs):
Legacy Reports
  IAPMO ES ICC-ES ESR CITY OF LOS ANGELES STATE OF FLORIDA ICC-ES NER ICC-ES ER ICC-ES ES
HDU2 No code listing. Please contact us for test data.
HDU4 No code listing. Please contact us for test data.
HDU8 No code listing. Please contact us for test data.
SSTBSee specific model numbers for code listings.
SSTB14      FL6482      
SSTB16    RR25248     ER-4935  
SSTB16L    RR25248     ER-4935  
SSTB20    RR25248     ER-4935  
SSTB20L    RR25248     ER-4935  
SSTB24    RR25248     ER-4935  
SSTB24L    RR25248     ER-4935  
SSTB28    RR25248     ER-4935  
SSTB28L    RR25248     ER-4935  
SSTB34    RR25248     ER-4935  
SSTB34L No code listing. Please contact us for test data.
SSTB36    RR25248     ER-4935  
SSTB36L No code listing. Please contact us for test data.
SSTBL No code listing. Please contact us for test data.

   
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