HomeMy WebLinkAboutLETTER -REVISION411
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PAUL WELCH INC.
Mechanical * Electrical * Civil Engineering
1984 S.W. Biltmore St. Suite#114
Port Saint Lucie, FL 34984
Phone (772) 785 - 9888
Email pwelchinc@aol.com
April 21, 2015
Re: Grace Emmanuel Church Portable Tie Down
707 Kitterman Rd.
Port St. Lucie, FL
Permit 1407-0381
To Whom It May Concern:
Please be advised of the revisions to the above referenced project as follows:
1) ABS Pads at Pier Al may be (1) -17.5" x 22.5" ABS Pad over (2) -17.5" x 22.5"
ABS Pads, in lieu of 24" X 24" ABS Pads as shown on plan.
2) ABS Pads at Pier B2 may be (1) -17.5" x 22.5", in lieu of 24" X 24" ABS Pads as
shown on plan.
3) ABS Pads at Pier B1 may be (1) -16" x 16", in lieu of 16" X 18" ABS Pads as
shown on plan.
Note: ABS Pads shall be installed as per manufacturer's installation instructions.
Thank you for your attention to this matter.
Submitted by:
PA WELCH INC.
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Paul Welch, P.E.
Reg. No 29945
PW:pj
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Installation Instructions for ABS Pads
For use on all Mobile and Manufactured Homes, including
y HUD. approved Homes and Modular Building
Patent #6503500 and other patents pending
GENERAL INSTRUCTIONS:
1. All pads are to be installed flat side down, ribbed side up,,
2. The ground under the pads should be leveled as smooth as possible with all vegetation removed. Pads to be placed on fully compacted or
undisturbed soll, at or below the frost -fine or otherwise protected from -the effects of frost.Refer to NCSBCS/ANSI A225.1
3. Pier A pad spacing will be determined by the manufactured homes' written setup instructions or any local or state codes.
4. The open cells between the ribbing on the upper side of the pads may be filled with soil or sand after installation to prevent any accumulation of
stagnant water in the pads.
5. A pocket penetrometer may be used to determine .the actual soil bearing value. If no soil testing equipment is available — use an assumed soil
value of 1000 lbs. / square foot.
6. All pad sizes shown are nominal dimensions and may vary up to 1/8'.
7. The maximum deflection in a single pad is 5/8' measured from the highest point to the lowest point of the top face.
(NOTE: Actual test results were less than 5/8 )
8. Pad loads are the same when using single stack or double stack blocks.
9. The maximum load at any intermediate soil value may be determined as the average of the next lower and next higher soil value given in the
table below.
10. If the home manufacturer shows soil densities greater than 3000 Ibs.'Men using ABS pads, do not exceed 3000 lbs. soil pier spacings per set
up manual.
PAD SIZE ID NO. pen eRFe 4 nnn nee onu .■■.■..■ .,..� ....■.
Oval 16' x 18.5'
1055-23/Aff4)6-1000
-
288 sq."ih.-
■wv ■ V■- VV■V
2000 lbs.
cwu For SwL.
4000 lbs.
Jwu rar oun.
6000 lbs.
Ov 1 1.z 22'
1055=16/AIT 1001.
..: 360, s m..
2500:.Ibs ...: �
r5000 lbs �
. ' .7500 Ibs:
Ova117.5' x 22.5'
1055-21
384 s . in.
2667 lbs.
..
8000 lbs.
.
8000 lbs.
Oval -17 5' x 25 5' ,
1'055- RAFT-06�1002 .3000
Ibs ..: "
6000.Ibs :
Oval 2l' x 29'
1055-22/Aff4)6-1003
576 sq. in.
4000 lbs.
8000 lbs. *
12000 lbs.
Oval'23.25' x 31.25'
:938$
PAD SIZE ID NO. PAD AREA 4nm MI: Ann 12nm eee enu 1%nnn nee 00%11
Square 16' x 16'
1055-14/AIT-06-1005
-- -
256 sq. in.
---
1785 lbs.
w ■ ... vv■r
3560 lbs.
vwv rvr vv■v
5333 lbs.
ware 18:5".k 14.5'1
10:5&9/Af-T QW1006
342s: In
2375'Ibs
4750 Ibs
lbs.
Square 20' x 20'
1055-7/Aff-06-1007
400 sq. in.
2750 lbs.
5500 lbs.
8250 lbs.
-,Sq.-are 24' x 24' :
1055-13/ANM-1008
57.6 s. In.:
400ft'Ibs
: 8000 Ihs * :-
: ..::8000 Ltis;:*
Concrete blocks are required to be double blocked.
11. Any ABS pad configuration may be used to replace a home manufacturer's recommended concrete or wood base pad.
12. ALABAMA ONLY The 23.25' x 31.25' ID#1055-20 may not be installed in the State of Alabama.
For the State ofAlabama all ABS pads shall not have more than 3/8` deflection. See chart below for details on correct installation in Alabama.
EXAMPLE: .16' x 80'sat on (Alabama only)
PAD SIZE 1000 PSF 20M PSF
Oval 16' x 18.5'
2V-
5'6"
QvaE°17'z22'
::;5'0"
Oval 17.5' x 22.5'
3V
7V
Oval 17.5' x 25:5° :.
'On'.
Oval 21-1 x 29'
4'5"
s'o"
--Oval-23-W x 31 25'...
6'0"
wap
Revised 04.291 i Page 7/2
467 Swan Ave • Hohenwald, IN 38462 • (800) 284-7437.• www.olivertechnologies.com • Fax (931) 79
13. TEXAS ONLY: 17.5" x 22.5" ID #1055-21 and 23.25" x 31.25" ID #1055-20 may not be installed in the State of Texas.
14. Steel Piers: All pads are tested with steel piers on 1000 PSF soil density unless otherwise noted. (See 15) If required, attach with (04) 2" #12 x W hex
tech screws. Minimum Pier Base 71/4 inches. The Mulit-Pad configuration 35" x 25.5" ID #AIT-06-1002 (03) requires minimum 9 W pier base.
15. Available pads tested on 2000 PSF soil density using steel piers are: ID #1055-14, 1055-9, 1055-7 and 1055-13.
16. CALIFORNIA: Use an assumed value of 1000 lb/sq. ft. unless engineering and calculations are provided.
INSTRUCTIONS for Mulit-Pad Configurations
ABS Pad Types
Oval 16' x 18.5' Pad
2.00 Square Feet
ID # 1055-23/AIT406-1000
Oval 327.x:18.5' Pad Corifiuration 03 =..
• ;4.00 S46arb-Feet
Y
Oval 17" x 22" Pad
2.50 Square Feet
ID # 1055-16-AIT 06.1001
Oval,34;.x 22";Pad Configuration (03)!. ..
`5.00 uare`Feet=
Oval 17.5' x 25.5" Pad
3.00 Square Feet
ID # 1055-17MIT-06-1002
Oval 35" x'25.5- Pad Configuration (03)`
6.00 Sq -are Feet
MAXIMUM PIER LOAD IN POUNDS:
Soil Bearing Maximum
8" Cell Block Value Load
32'x 185'
Pad Configuration
Single Stack
1000 lbs. / sq..ft
„ 4000 lbs.
Double Stack
2000 lbs. I sq. ft.
8000 lbs. jF
34'x22'
Pad Configuration
Single Stack
10001bs. J sq::ft.,,
.` 5000lbs. _
Double Stack
2000 lbs. / sq. ft.
10000 lbs.
35'255'
Pad Configuration
:,.,Single Stack ,
,1009 lbs.'! sq.. ft:
6000lbs.,
Double Stack
2000 Ibs. / sq. ft.
12000 lbs. #
'Concrete blocks are only rated at 8000 pounds, 8001 pounds and higher must be double stacked.
PAD ASSEMBLY
STEP 1 -17" x 22" ABS Pad STEP 2 - (2) 17" x 22" ABS PADS STEP 3 - Complete Assembly
(Note: Use 2 blocks side by side for soils (34" x 22" Configuration) 34" x 22" Multi- Configuration
rated at more than 1,000 lbs / sq. foot) 9 ) Pad
1. General instructions (on reverse) apply to all multi - pad configurations.
2. The 32" x 18.5" pad configuration is formed by using (3) 16" x 18.5" ABS Pads. Place (2) 16" x 18.5" side by side, and place (1)16" x 18.5" on top, laid in the
opposite direction to the bottom pads.
3. The 34" x 22" pad configuration is formed by using (3) 17" x 22" ABS Pads. Place (2) 17" x 22" pads side by side, and (1) 17" x 22" pad on top. The top pad
is laid in the opposite direction to the bottom pads.
4. The 35" x 25.5" pad configuration is formed by using (3) 17.5" x 25.5" ABS Pads. Place (2)17.5" x 25.5" pads side by side, and (1) 17.5" x 25.5" pad on top.
The top pad is laid in the opposite direction to the bottom pads.
Revised 04.29.11
Page 212