HomeMy WebLinkAboutTie-Down-Engineering-2017.pdfBMP INTERNATIONAL, INC.
MECHANICAL UNIT STEEL TIE —DOWN CLIP: AT GRADE &ROOF —TOP MOUNTED APPLICATIONS
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HOST STRUCTURE DESIGN
BY OTHERS. SEE DESIGN of '�
SCHEDULES FOR 01 ij,
ALLOWABLE SUBSTRATES
3" MAXX
MECHANICAL UNIT TYP.
1 TIE —DOWN ISOMETRIC l
1 1" = V-0" ISOMETRIC
SEE DESIGN
SCHEDULE FOR
MAXIMUM SURFACE
AREA AND DESIGN
PRESSURE, TYP.
STEEL TIE -DOWN CLIPS.
1,2 SEE DETAIL 1/3 & 2/3
FOR CLIP INFORMATION,
3 TYP.
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MAX
TYP.
3' TYP. y�G 5O
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TYPE OF CLIP AND NUMBER OF CLIPS
PER CORNER WILL VARY PER
CONNECTION TYPES Cl-C4 ON SHEET 2
TIE —DOWN CLIP DIRECTIVE EXAMPLE
(THE FOLLOWING EXAMPLE ILLUSTRATES THE PROCEDURE USED TO DETERMINE THE MAXIMUM ALLOWABLE ROOF -TOP INSTALLATION HEIGHT, H, FOR ANY GIVEN
MECHANICAL UNIT THAT CONFORMS TO THE DIMENSION RESTRICTIONS AND DESIGN CRITERIA LISTED HEREIN. SEE SHEETS 4-5 FOR DESIGN SCHEDULES.)
MECHANICAL UNIT CRITERIA:
CONSIDER THE INSTALLATION OF (1) MECHANICAL UNIT WITH THE FOLLOWING CRITERIA=
• Vult=170 MPH, EXPOSURE 'B'
• 48" TALL x 48" DEEP x 48" WIDE, 100 LB (WEIGHT AS VERIFIED BY OTHERS)
• INSTALLED TO 3000 PSI MIN CONCRETE WITH (1)-2" CLIP AT EACH CORNER OF UNIT (TOTAL OF (4) CLIPS)
PROCEDURE:
PROCEDURE STEP
RESULT
1
DETERMINE THE CONNECTION TYPE BASED ON THE DIAGRAMS ON SHEET 2
CONNECTION TYPE 3
2
DETERMINE WHICH DESIGN SCHEDULE TABLE TO USE
THIS INSTALLATION IS INTENDED FOR A Vult=170 MPH, EXPOSURE'B'. THIS DESIGN
CRITERIA CORRESPONDS TO TABLE 5
3
DETERMINE LARGEST FACE AREA OF MECHANICAL UNIT TO BE INSTALLED
48"x48"=16FT2
THIS UNIT HEIGHT OF 48" IS EQUAL TO THE MAXIMUM ALLOWABLE HEIGHT OF 48".
NOTE: THIS PRODUCT APPROVAL ALLOWS THE UNIT TO BE INSTALLED ON TOP
4
CHECK MAXIMUM UNIT HEIGHT RESTRICTION
OF AN A/C STAND THAT IS A MAXIMUM 30" TALL. IF AN A/C STAND IS UTILIZED,
CHECK TO SEE THAT THE STAND DOES NOT EXCEED 30" IN HEIGHT
5
CHECK MINIMUM UNIT WIDTH RESTRICTION
UNIT WIDTH IS 48" WHICH IS GREATER THAN THE MINIMUM ALLOWABLE WIDTH OF 24"
6
DETERMINE THE ALLOWABLE ROOF -TOP HEIGHT OF THE INSTALLATION
THIS UNIT MAY BE INSTALLED AT ROOF HEIGHTS LESS THAN OR EQUAL TO 15 FT.
SEE (*) ON TABLE 5 FOR THE NUMERICAL VALUES OF THIS DESIGN EXAMPLE
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DESIGN NOTES:
THIS PRODUCT HAS BEEN DESIGNED IN ACCORDANCE WITH ASCE 7-10 AND FLORIDA"''P
BUILDING CODE 2017 (6TH EDITION) FOR USE WITHIN AND OUTSIDE THE HIGH VELOCI%
HURRICANE ZONE AS INDICATED IN THE ACCOMPANYING DESIGN SCHEDULES. THE DESIj
CRITERIA USED TO CALCULATE THE ALLOWABLE ROOF -TOP HEIGHTS CONSIDERS FBC
SECTION 1609.8 FOR NON-HVHZ AND SECTION 1620.6 FOR HVHZ & ASCE 7 SECTION 29.4.1
FOR INSTALLATIONS AT GRADE. (GCf)L�,t.,ai=1.90 WITHIN THE HVHZ & OUTSIDE THE
HVHZ, (GCf) ;art=1.5 FOR ALL LOCATIONS (CONCURRENT) . ALL OTHER DESIGN VARIABLES
ARE IN ACCO0ANCE WITH ASCE 7-10 CHAPTERS 26 & 29. THE HEIGHTS LISTED IN THE
DESIGN SCHEDULES REPRESENT THE ALLOWABLE HEIGHT OF THE BUILDING. THIS
PRODUCT APPROVAL ALLOWS FOR EACH UNIT TO BE INSTALLED ON A MAXIMUM 30" TALL
A/C STAND (CERTIFICATION BY OTHERS) ON TOP OF THE HEIGHTS LISTED IN THE DESIGN
SCHEDULES.
GENERAL NOTES:
1. NO 33-1/3% INCREASE IN ALLOWABLE STRESS HAS BEEN USED IN THE DESIGN OF THIS
SYSTEM.
2. DESIGN IS BASED ON CLIENT PROVIDED PRODUCT AND DIE SHEETS FROM TEST
REPORTS #TEL 01970387A, #TEL 01970387B BY TESTING EVALUATION LABORATORIES,
INC.. NO SUBSTITUTIONS WITHOUT WRITTEN APPROVAL BY THIS ENGINEER SHALL BE
PERMITTED.
3. MAXIMUM & MINIMUM DIMENSIONS AND MINIMUM WEIGHT OF MECHANICAL UNIT SHALL
CONFORM TO SPECIFICATIONS STATED HEREIN. ALL MECHANICAL SPECIFICATIONS
(CLEAR SPACE, TONNAGE, ETC.) SHALL BE AS PER MANUFACTURER RECOMMENDATIONS
AND ARE THE EXPRESS RESPONSIBILITY OF THE CONTRACTOR.
4. FASTENERS TO BE #12 X 3/4" OR GREATER SAE GRADE 5 UNLESS NOTED OTHERWISE.
TAPCONS REFERRED TO HEREIN SHALL BE ITW BUILDEX BRAND, CARBON STEEL ONLY,
INSTALLED TO 3000 PSI MIN CONCRETE. SEE ANCHOR SCHEDULE FOR ANCHOR
REQUIREMENTS. ALL FASTENERS SHALL HAVE APPROPRIATE CORROSION PROTECTION
TO PREVENT ELECTROLYSIS.
5. ALL STEEL CLIPS SHALL BE ASTM A283 STEEL (GRADE D) WITH Fy=33 KSI OR BETTER.
ALL STEEL MEMBERS SHALL BE PROTECTED AGAINST CORROSION WITH AN APPROVED
COAT OF PAINT, ENAMEL OR OTHER APPROVED PROTECTION. G90-RATED COATING
REQUIRED FOR ALL COASTAL INSTALLATIONS.
6. ALL CONCRETE SPECIFIED HEREIN IS NOT PART OF THIS CERTIFICATION. AS A MINIMUM,
ALL CONCRETE SHALL BE STRUCTURAL CONCRETE 4" MIN. THICK AND SHALL HAVE
MINIMUM COMPRESSIVE STRENGTH OF 3000 PSI, UNLESS NOTED OTHERWISE.
7. THE CONTRACTOR IS RESPONSIBLE TO INSULATE ALL MEMBERS FROM DISSIMILAR
MATERIALS TO PREVENT ELECTROLYSIS.
8. ELECTRICAL GROUND, WHEN REQUIRED, TO BE DESIGNED & INSTALLED BY OTHERS.
9. THE ADEQUACY OF ANY EXISTING STRUCTURE TO WITHSTAND SUPERIMPOSED LOADS
SHALL BE VERIFIED BY THE ONSITE DESIGN PROFESSIONAL AND IS NOT INCLUDED IN
THIS CERTIFICATION.EXCEPT AS EXPRESSLY PROVIDED HEREIN, NO ADDITIONAL
CERTIFICATIONS OR AFFIRMATIONS ARE INTENDED.
10. THE SYSTEM DETAILED HEREIN IS GENERIC AND DOES NOT PROVIDE INFORMATION FOR
A SPECIFIC SITE. FOR SITE CONDITIONS DIFFERENT FROM THE CONDITIONS DETAILED
HEREIN, A LICENSED ENGINEER OR REGISTERED ARCHITECT SHALL PREPARE SITE
SPECIFIC DOCUMENTS FOR USE IN CONJUNCTION WITH THIS DOCUMENT.
11. WATER -TIGHTNESS OF EXISTING HOST SUBSTRATE SHALL BE THE FULL RESPONSIBILITY
OF THE INSTALLING CONTRACTOR. CONTRACTOR SHALL ENSURE THAT ANY REMOVED
OR ALTERED WATERPROOFING MEMBRANE IS RESTORED AFTER FABRICATION AND
INSTALLATION OF STRUCTURE PROPOSED HEREIN. THIS ENGINEER SHALL NOT BE
RESPONSIBLE FOR ANY WATERPROOFING OR LEAKAGE ISSUES WHICH MAY OCCUR AS
WATER -TIGHTNESS SHALL BE THE FULL RESPONSIBILITY OF THE INSTALLING
CONTRACTOR.
12. FOR AN EXPLANATION OF EXPOSURE CATEGORIES THAT ACCOMPANY THE Vult WIND
SPEEDS USED IN THIS APPROVAL, SEE SECTION 26.7.3 OF ASCE 7-10.
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1" CLIP - UTILIZE (1) AT EACH CORNER FOR A TOTAL OF (4) PER UNIT
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2" CLIPS - UTILIZE (1) AT EACH CORNER FOR A TOTAL OF (4) PER UNIT
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ANCHOR SCHEDULE:
1 CLIPS
SUBSTRATE
DESCRIPTION
(1)-5/16"0 CARBON STEEL
ITW BUILDEX TAPCON,
CONCRETE:
2Y/4" FULL EMBED TO
(4" THICK MIN,
CONCRETE, 31/s" MIN.
3000 PSI MIN.)
EDGE DISTANCE, 33/4" MIN.
SPACING TO ANY
ADJACENT ANCHOR.
ALUM
ALUMINUM:
ALUM"
(1)-#14 SAE GRADE 5
MIN.
MIN.
SHEET METAL SCREW TO
THICK,
ALUMINUM, PROVIDE (5)
MIN. ALUMINUM)
PITCHES MIN. PAST
THREAD PLANE
STEEL:
(1)-#14 SAE GRADE 5
(0.125" MIN.
SHEET METAL SCREW TO
THICK, 33 KSI
STEEL, PROVIDE (5)
MIN. STEEL)
PITCHES MIN. PAST
THREAD PLANE
1" CLIP - UTILIZE (2) AT EACH CORNER FOR A TOTAL OF (8) PER UNIT
Al2" CLIPS Ili 3" MAX
TYP.
1 .
3" MAX ylG��pv
MAX TYP. l�ZC�G�S
TYP.
5
CONNECTION TYPE C4
2" CLIPS
SUBSTRATE
DESCRIPTION
(1)-5/16"O CARBON STEt
ITW BUILDEX TAP CON,
CONCRETE:
2Y4" FULL EMBED TO ,
(4" THICK MIN,
CONCRETE, 3Ys" MIN. i
3000 PSI MIN.)
EDGE DISTANCE, 33/4" MIN.
SPACING TO ANY
ADJACENT ANCHOR.
ALUM
ALUM"
ALUMINUM:
(2)-#14 SAE GRADE 5
MIN.
MIN.
SHEET METAL SCREWS TO
THICK, 6
ALUMINUM, PROVIDE (5)
MIN. ALUMINUM)
PITCHES MIN. PAST
THREAD PLANE
STEEL:
(2)-#14 SAE GRADE 5
(0.125" MIN.
SHEET METAL SCREWS TO
THICK, 33 KSI
STEEL, PROVIDE (5)
MIN. STEEL)
PITCHES MIN. PAST
THREAD PLANE
1. EMBEDMENT AND EDGE DISTANCE EXCLUDES FINISHES, IF APPLICABLE.
2. ENSURE MINIMUM EDGE DISTANCE AS NOTED IN ANCHOR SCHEDULE.
3. SEE DETAILS ON SHEET 3 FOR ANCHORS ATTACHING TO MECHANICAL UNIT.
2" CLIPS - UTILIZE (2) AT EACH CORNER FOR A TOTAL OF (8) PER UNIT
UNIT WIDTH
6" MAX 6" MAX
CLIP OFFSET CLIP PAIR SPACING CLIP OFFSET
!gin FEW --I
3" TYP
MECHANICAL
CLIP -CLIP
UNIT PER
SPACING
SEPARATE
CERTIFICATION
UTILIZE (4) CLIPS EA SIDE
OF UNIT FOR A TOTAL OF
(8) PER UNIT
5 ALTERNATE 8 CLIP DETAIL
3 N.T.S. PLAN VIEW
THIS DETAIL MAY BE USED AS AN ALTERNATE GEOMETRIC
PATTERN FOR ALL CONNECTION TYPES THAT UTILIZE (2)
CLIPS AT EACH CORNER FOR A TOTAL OF (8) CLIPS PER
UNIT.
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*FOR ANY CLIP
LONGER THAN 10"
0.19" UTILIZE (5)-#12 SAE
TYP. GRADE 5 SHEET
METAL SCREWS, TYP.
0.068" THICK
ASTM A283
STEEL, TYP.
k o
O
(3)-#12 SAE GRADE 5 w o
SHEET METAL SCREWS N o
FOR CLIPS UP TO 5" ,� o
LONG. UTILIZE (5)-#12 i
SHEET METAL SCREWS
FOR CLIPS LONGER —
THAN 5", TYP.
%a°O HOLE, WITH
ANCHOR FROM 1"
0.75" CLIP ANCHOR
SCHEDULE, TYP.
1" CLIP ISOMETRIC DETAIL
N.T.S.
0.072" OR
0.113" THICK
ASTM A283
STEEL, TYP.
0.12?IV-
in
N
11
0.75'. /
FACTORY -MILLED %a" O HOLES;
UTILIZE (1) OR (2) ANCHORS
FROM 2" CLIP ANCHOR
SCHEDULE, TYP.
_X0
X
0
7
J
(OTHER
DIMENSIONS
SIMILAR)
Q
OD
(3)-#12 SAE GRADE 5
SHEET METAL SCREWS
FOR CLIPS 4" LONG.
UTILIZE (4)-#12 SHEET
METAL SCREWS FOR
CLIPS LONGER THAN 4",
TYP.
1/a"0 HOLES, NOT TO
BE USED FOR
ANCHORS, TYP.
.375"
.0p„
0.50"
0.50"
00
1•
0.50"
2 2" CLIP ISOMETRIC DETAIL
3 N.T.S. ISOMETRIC
ISOMETRIC
MECHANICAL UNIT BY OTHERS. ALUMINUM
HOUSING UNITS SHALL BE 6063-T6 MIN.
ALUMINUM SHEET WITH Fty=30 KSI, 0.125"
MIN. THICKNESS, STEEL HOUSING UNITS
SHALL BE ASTM A653 Fy=33KSI MIN.
STEEL, GRADE 33, 22GA MIN. (t=0.0299").
0.068" THICK ASTM—
A283 STEEL CLIP, TYP.
BASE OF UNIT SHALL
�
BE FLUSH WITH BASE
OF CLIP, NO SPACE
/-
PERMITTED, TYP.
(3)-#12 SAE GRADE 5 SHEET
METAL SCREWS FOR CLIPS UP TO
�5" LONG. UTILIZE (5)-#12 SHEET
METAL SCREWS FOR CLIPS
LONGER THAN 5". PROVIDE (5)
PITCHES MIN. PAST THREAD PLANE
FOR EACH SMS, TYP.
ANCHOR PER
ANCHOR
SCHEDULE
SUBSTRATE PER
ANCHOR
/ SCHEDULE
(VARIES)
1" TIE -DOWN CLIP
3 ANCHOR DETAIL
3 3" = V-0" DETAIL
CLIP IS DESIGNED FOR FULL
CONTACT WITH THE BASE OF EACH
MECHANICAL UNIT, TYP.
MECHANICAL UNIT BY OTHERS. ALUMINUM
HOUSING UNITS SHALL BE 6063-T6 MIN.
ALUMINUM SHEET WITH Fty=30 KSI, 0.125"
MIN. THICKNESS, STEEL HOUSING UNITS
SHALL BE ASTM A653 Fy=33KSI MIN.
STEEL, GRADE 33, 22GA MIN. (t=0.0299").
0.072" OR 0.113
THICK ASTM A283
STEEL CLIP, TYP
BASE OF UNIT SHALL
BE FLUSH WITH BASE
OF CLIP, NO SPACE
PERMITTED, TYP.
(3)-#12 SAE GRADE 5 SHEET
METAL SCREWS FOR CLIPS 4"
LONG. UTILIZE (4)-#12 SHEET
METAL SCREWS FOR CLIPS
LONGER THAN 4". PROVIDE (5)
X, PITCHES MIN. PAST THREAD PLANE
FOR EACH SMS, TYP.
(1) OR (2)ANCHORS
/ - PER ANCHOR
3/8 SCHEDULE
SUBSTRATE PER
i
>' i % , ANCHOR
SCHEDULE
(VARIES)
2" TIE -DOWN CLIP
4 ANCHOR DETAIL
3 3" = 1'-0" DETAIL
CLIP IS DESIGNED FOR FULL
CONTACT WITH THE BASE OF EACH
MECHANICAL UNIT, TYP.
1```C� ietl
SF
LC.: No PE004654
STATE OF
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