PowerBox8 Lintel Engineering Specification Notes

Miami Dade

Miami Dade County Product Control Approved n.o.a #18-0212.12

Click above to select specification notes.

Click here to download printable PowerBox Miami/Dade Engineering Package


NOTES: PowerBox8 Gravity – 16 and 20 Gage

Miami Dade - 3000psi

  1. PRODUCT NAME (PATENT NO. 6367209)

    PREFORMED POWERS STEEL LINTEL SHALL BE GALVANIZED COIL STEEL AS MANUFACTURED BY POWERS STEEL AND WIRE PRODUCTS, INC. STEEL GRADE SHALL BE ASTM A570 GRADE C (FY = 40 ksi).

    NOTE: DEFORMATIONS DO NOT EFFECT STRUCTURAL CAPACITY.
    FOR SPANS LESS THAN 16'-0" BOX LINTELS TO BE 20 GA.
  2. SHORE LINTELS AS REQUIRED TO COMPENSATE FOR DEAD LOAD DEFLECTION ON NON-CURED MASONRY GROUT. ALL LINTELS GREATER THAN 18'-0" ARE BUILT WITH 1/2" CAMBER.
  3. LINTEL TO BE USED WITH CONCRETE MASONRY UNITS HAVING MINIMUM f’m AS SHOWN.
  4. STEEL SURFACES IN CONTACT WITH GROUT AND/OR MORTAR SHALL BE UNPAINTED AND FREE OF MATERIAL THAT MIGHT INHIBIT BOND.
  5. DESIGN BEARING OF POWERS STEEL LINTELS IS 8" FOR ALL LINTELS.
  6. f’m = 1500 psi. MASONRY UNITS SHALL CONFORM TO ASTM C90, GRADE N.
  7. GROUT = 3,000 psi. SLUMP RANGE: 8" TO 11". ROD OR VIBRATE GROUT ADEQUATELY TO ENSURE CONSOLIDATION OF GROUT (NO AIR POCKETS). GROUT SHALL COMPLY WITH ASTM C476 AND BE EITHER COARSE OR FINE GROUT.
  8. MORTAR: TYPE “S” OR TYPE “M” 1800 psi.
  9. TOP REINFORCING OR TOP OF WALL REINFORCING, IS REQUIRED BY CODES TO PROVIDE A CONTINUOUS TIE AROUND A STRUCTURE AND TO PROVIDE FOR UPLIFT RESISTANCE AT LINTELS.
  10. ATTACHMENTS TO TOP OF WALL PER ARCHITECTURAL AND/OR ENGINEERING DRAWINGS.
  11. LIMITATIONS:

    THE LINTELS SHALL NOT EXCEED THE ALLOWABLE DESIGN LOADS AND SPANS SHOWN IN THIS REPORT.

    THE LINTELS SHALL NOT BE USED IN A FIRE RESISTANCE RATED ASSEMBLY UNLESS A TEST REPORT DOCUMENTING FIRE RESISTANCE IS SUBMITTED TO THE BUILDING OFFICIAL.

    A PROPER BARRIER IS REQUIRED WHEN USING CORROSIVE LUMBER PRODUCTS IN CONTACT WITH THE STEEL LINTELS. A PROPER BARRIER WOULD BE A POLYETHYLENE BARRIER WITH A 10 MIL THICKNESS OR TO MAINTAIN A MIN. 1/4" SPACING BETWEEN THE CORROSIVE LUMBER AND STEEL LINTEL.

    LOAD TABLES (Pbbox8MD) ARE APPROVED TO BE USED BE USED IN THE HVHZ IN MIAMI OR BROWARD COUNTIES.
  12. DEFLECTION LIMITS ARE SET TO L/600 FOR ALL LOADS SHOWN ABOVE THE DARKENED SOLID LINE. DEFLECTION LIMITS ARE SET TO L/360 [LIVE LOAD] AND L/240 [DEAD + LIVE LOAD] FOR ALL LOADS SHOWN BELOW DARKENED SOLID LINE.
  13. ALL LOADS SHOWN IN TABLES ARE SUPERIMPOSED LOADS. TABLES ARE DATED 1/2018 AND CLEARLY INDICATE SUPERIMPOSED LOADS.
  14. #5 REINFORCING BAR(S) GRADE 40 IS TO SET APPROX. 1-1/2" FROM TOP OF ALL LINTEL DESIGNS AND IN SOME CASES THE BOTTOM OF LINTEL AS SHOWN ON LOAD TABLES. TOP HORIZONTAL REINFORCEMENT IS TO BE A CONTINUOUS TIE AS NOTED IN NOTE #9. IN THE CASE THAT THE LINTEL IS NOT WITHIN A COMPOSITE BOND BEAM SYSTEM, TOP HORIZONTAL REINFORCEMENT IS TO EXTEND 2'-0" PAST INSIDE OF JAMBS.
  1. MANUFACTURER:

    POWERS STEEL
    4118 E. ELWOOD
    PHOENIX, AZ 85040
    PHONE (602) 437-1160
    FAX (602) 437-5409

  2. TECHNICAL DATA AND ENGINEERING POWERS LINTELS HAVE BEEN DESIGNED IN ACCORDANCE WITH THE FOLLOWING:

    + FLORIDA BUILDING CODE 2017(6th Edition)
    + NASPEC / AISI LIGHT GAGE COLD FORMED DESIGN
    + ACI 530-13 / ASCE 5-13 / TMS 402-13

    NOTE: THE EDITIONS OF THE REFERENCED CODES AND STANDARDS APPLICABLE TO THE USE OF THIS PRODUCT APPROVAL ARE AS STIPULATED IN THE ACCOMPANYING SEALED LETTER DATED 6/21/18.

    STRUCTURAL ENGINEER FOR THESE LINTELS IS:

    S.E. CONSULTANTS, INC.
    5800 E. THOMAS RD. SUITE 104
    SCOTTSDALE, AZ 85251
    PHONE No. (480) 946-2010
    FAX (480) 946-1909

  3. INSTALLATION:
    POWERS LINTELS ARE TO BE INSTALLED IN ACCORDANCE WITH STANDARD CONSTRUCTIONS PRACTICES, SET TO PROPER LINE AND LEVEL, PLUMB AND TRUE, AND IN CORRECT RELATION TO OTHER WORK.
  4. LINTELS LOADED SIMULTANEOUSLY WITH VERTICAL (GRAVITY OR UPLIFT) AND HORIZONTAL (LATERAL) LOADS SHOULD BE CHECKED FOR THE COMBINED LOADING WITH THE FOLLOWING EQUATION:

    APPLIED VERTICAL LOAD     APPLIED HORIZONTAL LOAD
    ---------------------------- + -------------------------- ≤ 1.0
    SAFE VERTICAL LOAD          SAFE HORIZONTAL LOAD

  5. FOR COMPOSITE LINTEL HEIGHTS NOT SHOWN, USE SAFE LOAD FROM NEXT LOWER HEIGHT SHOWN.
  6. FOR LINTEL LENGTHS NOT SHOWN, USE SAFE LOADS FROM LONGEST LENGTH SHOWN.
  7. SAFE LOADS ARE SUMPERIMPOSED ALLOWABLE LOADS.
    PowerBox8 Cross Section

    PowerBox8 STEEL LINTELS

    NOTE: NO SCALE
    16 GAGE IS .060 INCHES THICK.
    20 GAGE IS .039 INCHES THICK.

Powers Steel Inc.

NOTES: PowerBox8 Lateral/Uplift – 16 and 20 Gage

Miami Dade - 3000psi

  1. PRODUCT NAME (PATENT NO. 6367209)

    PREFORMED POWERS STEEL LINTEL SHALL BE GALVANIZED COIL STEEL AS MANUFACTURED BY POWERS STEEL AND WIRE PRODUCTS, INC. STEEL GRADE SHALL BE ASTM A570 GRADE C (FY = 40 ksi).

    NOTE: DEFORMATIONS DO NOT EFFECT STRUCTURAL CAPACITY. FOR SPANS LESS THAN 16'-0" BOX LINTELS TO BE 20 GA.
  2. SHORE LINTELS AS REQUIRED TO COMPENSATE FOR DEAD LOAD DEFLECTION ON NON-CURED MASONRY GROUT. ALL LINTELS GREATER THAN 18'-0" ARE BUILT WITH 1/2" CAMBER.
  3. LINTEL TO BE USED WITH CONCRETE MASONRY UNITS HAVING MINIMUM f’m AS SHOWN.
  4. STEEL SURFACES IN CONTACT WITH GROUT AND/OR MORTAR SHALL BE UNPAINTED AND FREE OF MATERIAL THAT MIGHT INHIBIT BOND.
  5. DESIGN BEARING OF POWERS STEEL LINTELS IS 8" FOR ALL LINTELS.
  6. f’m = 1500 psi. MASONRY UNITS SHALL CONFORM TO ASTM C90, GRADE N.
  7. GROUT = 3,000 psi. SLUMP RANGE: 8" TO 11". ROD OR VIBRATE GROUT ADEQUATELY TO ENSURE CONSOLIDATION OF GROUT (NO AIR POCKETS). GROUT SHALL COMPLY WITH ASTM C476 AND BE EITHER COARSE OR FINE GROUT.
  8. MORTAR: TYPE “S” OR TYPE “M” 1800 psi.
  9. TOP REINFORCING OR TOP OF WALL REINFORCING, IS REQUIRED BY CODES TO PROVIDE A CONTINUOUS TIE AROUND A STRUCTURE AND TO PROVIDE FOR UPLIFT RESISTANCE AT LINTELS.
  10. ATTACHMENTS TO TOP OF WALL PER ARCHITECTURAL AND/OR ENGINEERING DRAWINGS.
  11. LIMITATIONS:

    THE LINTELS SHALL NOT BE USED IN A FIRE RESISTANCE RATED ASSEMBLY UNLESS A TEST REPORT DOCUMENTING FIRE RESISTANCE IS SUBMITTED TO THE BUILDING OFFICIAL.

    A PROPER BARRIER IS REQUIRED WHEN USING CORROSIVE LUMBER PRODUCTS IN CONTACT WITH THE STEEL LINTELS. A PROPER BARRIER WOULD BE A POLYETHYLENE BARRIER WITH A 10 MIL THICKNESS OR TO MAINTAIN A MIN. 1/4" SPACING BETWEEN THE CORROSIVE LUMBER AND STEEL LINTEL.

    LOAD TABLES (Pbbox8MD) ARE APPROVED TO BE USED IN THE HVHZ IN MIAMI OR BROWARD COUNTIES.
  12. ALLOWABLE LOADS SHOWN IN THE TABLES FOR UPLIFT AND LATERAL LOAD CAPACITY INCLUDE A 1/3 INCREASE FOR WIND OR SEISMIC LOADING WITH NO FURTHER INCREASES ALLOWED. IF COMBINED LOADING CONDITIONS ARE APPLIED TO THE LINTELS FOR SIMULTANEOUS LOADING DIRECTIONS, THE ALLOWABLE LOADS SHOWN IN THE TABLES MUST BE ADJUSTED USING A UNITY EQUATION.

  13. ALL LOADS SHOWN IN TABLES ARE SUPERIMPOSED LOADS. TABLES ARE DATED 1/2018 AND CLEARLY INDICATE SUPERIMPOSED LOADS.
  14. #5 REINFORCING BAR (GRADE 40) IS TO SET APPROX. 1-1/2" FROM TOP OF ALL LINTEL DESIGNS AND IN SOME CASES THE BOTTOM OF LINTEL AS SHOWN ON LOAD TABLES. TOP HORIZONTAL REINFORCEMENT IS TO BE A CONTINUOUS TIE AS NOTED IN NOTE #9. IN THE CASE THAT THE LINTEL IS NOT WITHIN A COMPOSITE BOND BEAM SYSTEM, TOP HORIZONTAL REINFORCEMENT IS TO EXTEND 2'-0" PAST INSIDE OF JAMBS.
  1. MANUFACTURER:

    POWERS STEEL
    4118 E. ELWOOD
    PHOENIX, AZ 85040
    PH# (602) 437-1160
    FAX# (602) 437-5409

  2. TECHNICAL DATA AND ENGINEERING POWERS LINTELS HAVE BEEN DESIGNED IN ACCORDANCE WITH THE FOLLOWING:

    + FLORIDA BUILDING CODE 2017(6th Edition)
    + NASPEC / AISI LIGHT GAGE COLD FORMED DESIGN
    + ACI 530-13 / ASCE 5-13 / TMS 402-13

    NOTE: THE EDITIONS OF THE REFERENCED CODES AND STANDARDS APPLICABLE TO THE USE OF THIS PRODUCT APPROVAL ARE AS STIPULATED IN THE ACCOMPANYING SEALED LETTER DATED 6/21/18.

    STRUCTURAL ENGINEER FOR THESE LINTELS IS:

    S.E. CONSULTANTS, INC.
    5800 E. THOMAS RD. SUITE 104
    SCOTTSDALE, AZ 85251
    PHONE No. (480) 946-2010
    FAX (480) 946-1909

  3. INSTALLATION:
    POWERS LINTELS ARE TO BE INSTALLED IN ACCORDANCE WITH STANDARD CONSTRUCTIONS PRACTICES, SET TO PROPER LINE AND LEVEL, PLUMB AND TRUE, AND IN CORRECT RELATION TO OTHER WORK.

    LINTELS LOADED SIMULTANEOUSLY WITH VERTICAL (GRAVITY OR UPLIFT) AND HORIZONTAL (LATERAL) LOADS SHOULD BE CHECKED FOR THE COMBINED LOADING WITH THE FOLLOWING EQUATION:

    APPLIED VERTICAL LOAD     APPLIED HORIZONTAL LOAD
    ---------------------------- + -------------------------- ≤ 1.0
    SAFE VERTICAL LOAD          SAFE HORIZONTAL LOAD

  4. FOR COMPOSITE LINTEL HEIGHTS NOT SHOWN, USE SAFE LOAD FROM NEXT LOWER HEIGHT SHOWN.
  5. FOR LINTEL LENGTHS NOT SHOWN, USE SAFE LOADS FROM LONGEST LENGTH SHOWN.
  6. SAFE LOADS ARE SUMPERIMPOSED ALLOWABLE LOADS.
    PowerBox8 Cross Section

    PowerBox8 STEEL LINTELS

    NOTE: NO SCALE
    16 GAGE IS .060 INCHES THICK.
    20 GAGE IS .039 INCHES THICK.

Powers Steel Inc.