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TIE DOWN ENGINEERING • 255 Villanova Drive SW • Atlanta, GA 30336www.tiedown.com (404) 344-0000 Fax (404) 349-0401
Vector DynamicsFoundation Systemsby TIE DOWN ENGINEERING
Installation InstructionsFor Wind Zone I, II& III Version 8/19/2008
Approval
08
190
8,D
1030
Section Page Release Number DateGeneral Installation 2 8/19/2008High Pier Sets 3 8/19/2008Pitch Slopes 4 8/19/2008Parts List 5-6 8/19/2008Ground Instructions 7-8 8/19/2008Metal Pier & V-Drive Installation 9 8/19/2008Concrete Installation Instructions 10-12 8/19/2008Asphalt Installation Instructions 13 8/19/2008Single Section Home, Wind Zone I 14 8/19/2008Double Section Home, Wind Zone I 15 8/19/2008Triple Section Home, Wind Zone I 16 8/19/2008High Pier Sets for Double Section, Wind Zone I 17 8/19/2008Single Section Home, Wind Zone II 18 8/19/2008Double Section Home, Wind Zone II 19 8/19/2008Triple Section Home, Wind Zone II 20 8/19/2008Single Section Home, Wind Zone III 21 8/19/2008Double Section Home, Wind Zone III 22 8/19/2008Triple Section Home, Wind Zone III 23 8/19/2008
NOTE:To inquire about the use of the Vector Dynamics Foundation Systemswith homes of four or more sections, other widths, or on homesrequiring pier heights which are not included in these instructions,contact Tie Down Engineering, Inc. at 1-800-241-1806.
IntroductionThese instructions describe the proper use of the lateral and longitudinal foundation system. You may also refer to the home manufacturer’s installation manuals that include the Vector Dynamics system as an alternate foundation system.
GeneralThe Vector Dynamics Foundation System resists lateral & longitudinal wind loads by anchoring the two longitudinalmain rails. The system is approved to be used on single or multi section homes: • Nominally12feetto16feetwide-(singlesection)withmainrailspacingof95inchesorgreateroncenter; multi section main rail spacing of 75 inches or greater on center. • Nominal8footorlesstopplateheightatsidewallswithmainraildepthof12”orless. • Maximumroofslopeof20degrees(4.4”in12”slope). • Additionalsystemsmaybeneededforroofslopesgreaterthan20degrees,4.37”in12”pitch.Seepage4. • Maximumeaveswidth(roofoverhangofsidewall)of12”forZoneI,8”forZoneIIand6”forZoneIII.
TheVectorDynamicsFoundationSystemhasnotbeendesignedforuseonexposure“D”homeswithin1500feetofthecoastline. Additional vertical anchor ties that are unique to a home’s design may be required by the home manufacturer. These locations may include shear walls, marriage line ridge beam support posts, end frame ties and rim plates.
GENERAL INSTALLATION INSTRUCTIONS
Site PreparationIt is necessary that the home site be properly graded and sloped to prevent water and moisture from standing or flowing beneath the home.
Footings and Frost LinesTheVectorDynamicsFoundationSystemwasdesignedtobeplaceddirectlyontopoftheground(orpouredconcrete)after clearing all loose vegetation. In areas with frost heave, use Vector for Poured Concrete and check with local requirements for footer depth.
Foundation/Footing Specification for Vector PadsVector Pads are used in place of conventional foundation pads. Vector pad sizes provide two or three square feet of bearing support. Vector Systems should be spaced as symmetrically as possible along the length of the home. For pier locations in between the Vector Systems, use the normal foundation pads.
Compression StrutTocutlumber(2-2x4’sor1-4x4perVectorsystem)forthecentercompressionsection,whenusingconcrete blocksforpiers,measurecentertocenterframe(I-beam)distanceandsubtract16”.3-1/2”or4”nominalschedule40PVC pipe meeting ASTM D1784 or Tie Down’s steel compression struts may be substituted for lumber as the center compression strut under certain conditions described above. Pipe adapter bracket, part #59281 must be used with PVC pipe simultaneously with the Inside Tie Brackets. The pipe adapter bracket is used on top of the pipe and under the Inside Tie Bracket.
2 Revised: 8/19/2008
50 in. max.
Figure 1
50 in. max.
24”
26” Maximum
Unequal Pier Heights
Homeswithunequalpierheightsarelimitedto50”maximumpierheight.Thedifferencebetweenthetallerpierandtheshorterpiercannotexceed26”.
Figure 2
Maximum Pier Height
Vector Dynamics Foundation Systems may be used on single section homes in Wind Zone I which require pier heights(fromsurfaceofVectorpadstotopofconcreteormetalpier)nottoexceed50inchesunderoneorbothmainrail(s).NotethatagroundanchormustbeusedateachVectorsystemlocationwherethepierheightexceeds24inchesforsinglesectionhomes.Onmulti-sectionhomesinWindZoneI,ananchormustbeusedateachVectorSystemlocationwithpierheightsabove46”withthefollowingexception:doublesectionhomesthatare24’wide,inWindZoneI,haveamaximumpierheightwithoutanchorsof38”.Seepage16fordoublesection home high pier set instructions.
3 Revised: 8/19/2008
08
130
8,D
973
Unit Width
Max. Pier
Height
Max. Sidewall Height
Max. Unit Length for Number of Vector Systems
2 3 4 5 6 136 32" 96" 28' 41' 55' 69' 80' 1 142 36" 96" 28' 42' 56' 70' 80' 1 156 44" 96" 28' 43' 58' 72' 80' 1 164 56" 96" 27' 40' 54' 68' 80' 1 176 56" 96" 28' 42' 56' 70' 80' 1 180 56" 96" 28' 42' 56' 70' 80' 1 186 56" 96" 28' 42' 56' 70' 80' 2
2 3 4 5 6136 32" 96" 25' 38' 50' 62' 76' 1142 36" 96" 25' 38' 50' 63' 76' 1156 44" 96" 25' 38' 50' 64' 76' 1164 44" 96" 26' 40' 53' 66' 80' 1176 52" 96" 26' 38' 52' 64' 76' 2180 52" 96" 26' 38' 52' 64' 76' 2186 56" 96" 25' 38' 51' 64' 76' 2
2 3 4 5 6136 28" 96" 24' 36' 48' 60' 72' 1142 28" 96" 25' 38' 50' 63' 76' 1156 36" 96" 25' 38' 50' 62' 75' 1164 36" 96" 26' 38' 52' 64' 76' 1176 40" 96" 26' 38' 51' 64' 76' 2180 40" 96" 26' 38' 51' 64' 76' 2186 40" 96" 26' 38' 51' 64' 76' 2
99 1/2" I-Beam Spacing (Maximum)Diagonal Tie Anchor Spacing = 12'-0" O/CMaximum Roof Slope = 5/12
99 1/2" I-Beam Spacing (Maximum)Diagonal Tie Anchor Spacing = 12'-0" O/CMaximum Roof Slope = 6/12
99 1/2" I-Beam Spacing (Maximum)Diagonal Tie Anchor Spacing = 12'-0" O/CMaximum Roof Slope = 7/12
Pier Height
Double Section Home
Vector SystemDiagonal Tiesw/Stabilizing Plates
I-Beam Spacing
Vector Dynamics System
Pitch Slopes for Wind Zone I
Vector LSD Systems Each Section
UnitWidth
Max.Pier
Height
Max.SidewallHeight
Max. Unit Length forNumber of Vector Systems
UnitWidth
Max.Pier
Height
Max.SidewallHeight
Max. Unit Length forNumber of Vector Systems
VectorLSD SystemsEach Section
VectorLSD SystemsEach Section
Federal Manufactured Home Construction & Safety Standards
4 Revised: 8/19/2008
Vector DynamicsFoundation SystemsComponent Parts List
Vector System 2000Part # 59018Single piece pads with strapsand slotted bolts
Concrete Vector SystemPart # 59036Single piece pads withswivel straps and slotted bolts
Concrete Vector SystemPart # 59049Double block pads withswivel straps and slotted bolts
Longitudinal StabilizationHardware Kit for ConcretePart # 59023(forusewith59036&59049)
Longitudinal StabilizationHardware Kit for Single PansPart # 10733(forusewith#59018)
5 Revised: 8/19/08
Longitudinal Hardware KitPart#59026(forusewith59271)
Vector Lateral Hardware KitPart # 59024(forusewith59271)
Struts for Longitudinal SystemsPartNo.StrutLength PierHeight59016 30” upto2Blocks59012 39” upto3Blocks59013 44” upto4Blocks59014 53” upto5Blocks59015 65” upto6Blocks
Orthese products available
at your local hardware store
Center Compression Strut#48612-SingleSection62”-108”#48613 - Double Section,34”-60”Or
these products availableat your local hardware store
Center Compression Strut#48612-SingleSection62”-108”#48613 - Double Section,34”-60”
Orthese products available
at your local hardware store
Center Compression Strut#48612-SingleSection62”-108”#48613 - Double Section,34”-60”
Orthese products available
at your local hardware store
#48612 - Single Section 62” - 108”#48613 - Double Section, 34” - 60”
Center Compression Strut
6 Revised: 8/19/08
Orthese products available
at your local hardware store
Center Compression Strut#48612-SingleSection62”-108”#48613 - Double Section,34”-60”
Vector 2000 3 Sq. Ft. PadPart # 59271(fordoubleblocklongitudinal)1 required with 59026 Longitudinal System2 required with 59024 Lateral System
Vector 2000 3 Sq. Ft. PadPart # 59276 for doubleblock sets with strap and hardware.
3/4"
17/32"
from end
Strut
orSwivel StrapConnection
Frame TieConnection
Struts can be cutto any size needed
A
C
B
Long U-Bolts
#59018System
#10733 Hardware
Tie Bracket
Beam Clamp
Longitudinal Strut Longitudinal Bracket
Vector 2 sq. ft.Pad for singlelongitudinal set
Outside Tension Bracket
Compression Member
Set-Up Instructions forVector Ground System
1. Set Vector PadsClear all vegetation where pads will rest. Place a long U-bolt in pad as shown. Attach longitudinal bracket to pan. Press or hammer pad into the ground.
2. Set Block or piers on padsCenter support blocks or piers on pads. Place metal strut between blocks, resting on pads, centers between U-bolts as shown.
3. Outside Tension BracketAttach outside tension bracket as shown tooutside of pads.
4. Inside brackets & strapsAttach the inside tie brackets to the U-bolts over the compression member. Place strap protector over I-beam and bend into place. Attach a strap w/hook orswivel strap w/nut & bolt. Place other end of the strap over opposite I-beam & down to outside tension brack-et. Cut strap 12 - 15 inches past bracket. Attach strap & slotted bolt in bracket. Tighten strap until tight with 4-5 wraps around bolt. Repeat with opposite strap.
5. LongitudinalInstall beam clamp to I-beam and attach longitudinal strut to pan using nuts and bolts provided. Pull beam clamp outward to remove any slack and tighten all nuts and bolts.
7 Revised: 8/19/08
I-Beam
Beam Clap
Strut
3 Sq. Ft Vector Padfor Double Block Set
Longitudinal Bracket
AB
D
C
Outside TensionBracket:
Set-Up Instructions forDouble Stack Vector Ground Systems
with Longitudinal Combo
8 Revised: 8/19/08
For metal piers, place the piers in the center of the Vector pads. Setthesingle4x4ortwo2x4’sthroughthepiers,centeredintheU-bolts,sothattheboard(s)overhangsthepierbaseoneachsidebyabout2”.OutsideTensionbracketsattachthesame,Insidetiebracketsmount“upsidedown”asshownindrawing.Metalpiersusing the Vector Ground System can only be used on level ground sets. Concrete pad sets would be set normal.
Conventional pier adjusters must be placed under beam with upturned edge directed towards the outside of the home.
Pier spacing must be consistent with home manufacturers’ installation instructions and/or state requirements.
Tocutlumber(2-2x4’sor1-4x4per,or1adjustablesteelcompressionmember)forthecentercompressionsection,whenusingMETALPIERSTANDS,measurecentertocenterframedistanceandadd16”.OptionalMoistureTermiteShieldmayberequiredincertainregions.ALLWOODMUSTBEPRESSURETREATED,GROUNDCONTACTRATED.
Tip: Pre-cut your lumber and mark as to brand or model of homes you will be installing. If frame widths are the same, the pre-cut boards will also be the same length in each Vector set-up.
Metal Pier Ground Set Foundations
V-Drive Systemfor Rocky Soil Conditions
V-Drive anchors are used only in Zone I, single section homes in areas where rocky soilconditionsdonotallowhelixstyleanchors to be installed.
Vector Systems are set following thegeneral set up instructions provided. With theV-Driveanchor,theshort2x4boardsusedwiththeoutsidetensionbracketsarediscarded.Inplaceoftheshort2x4’s,alonger2x4isusedasperthediagramabove.This2x4boardshouldextendfromthebaseoftheVectorpiersetto5inchesfromthesidewallof the home.
Place the V-Drive head over the end of the longer board. Using a heavy hammer or electric hammer gun, drive thethreeV-DriveanchorrodsthroughtheV-Driveheadsatanangleofapproximately45degreesunderthehome.The rods must come to a complete stop on the V-Drive head. Attach a strap with hook, buckle or swivel to the frame and attach to the V-Drive head with a slotted bolt. Cut the strap end about 12 to 15 inches past the anchor head to allow at least four or five wraps around the slotted bolt. Continue tightening strap until all slack is out and strap is tight.
V-Drive Anchors are used only inZone I, for Single Section Homes
9 Revised: 8/19/08
Vector Dynamics Systemfor Concrete ApplicationsInstructions (1 of 3)
The Vector system for concrete pads applies to concrete footers, runners and slabs. Minimum sizeof concrete per Vector pier is 24” x 24” x 4” or 18” round (min) x 10” deep. The bottom offooters must be below the frost line or a minimum of 4” below finished grade whichever is greater. Concrete must be cured sufficiently to prevent spalling at anchors and allow proper installation. Refer also to ACI-308 standards.
1. Determine location of pier sets where the Vector systems will be located.2. PlaceoneVectorconcretepad(galv.metal)ontheconcretewherethepierwillbelocated,centered under the I-beam of the home. Place the upturned edge towards the center of the home and directed to the opposite Vector pier. Do the same for the opposite Vector pier.3. Measure the distance between the two Vector system pads at the base where the Vector pad meets theconcrete.Cuttwogroundtreated2x4’sorSchedule40PVCpipe,oradjuststeelcompression member, to this length and place between the piers as shown.4. Placealongu-boltunderthe2x4’sandthroughtheholesoftheVectorpadasshown.5. Place the concrete pier blocks on the Vector pad. Center the blocks under the frame. The upturned edge end of the Vector pads should be up against the inside of the pier blocks.6. Build vector piers but do not wedge at this time.7. Using a concrete drill bit, drill two holes on each side into the concrete using the holes in the Vector padasaguide.Drillthe3/8”diameterholes3inchesdeep.8. Place an outside tension bracket on the Vector pad as shown in Illustration one. Line up the holes in the bracket, Vector pad and concrete pad.
Vector padfor
concrete
Tension Bracketfor Longitudinal
Strut
OutsideTensionBracket
Concretefooter
Illustration Oneof a Single SectionSet-Up
WedgeBolt
Wood Capand wedge
Inside of home
10 Revised: 8/19/08
9. Putawasherandnutononeofthe3/8”x3-3/4”wedgeanchors.Thenutshouldbescrewedon enough to have 1 or 2 threads showing on the top of the bolt. Place the wedge end of the bolt into one of the holes, going through the outside tension bracket, metal Vector pad and into the concrete.10. Usingahammer,tapthewedgeboltintothehole.Maximumheightforexpansionboltabove concreteis2”.11. Repeat for the other hole in the outside tension bracket and the two holes on the other Vector system pier set.12. Place an inside tie bracket over the u-bolt so that the lip of the bracket is between the Vector plate andconcreteblocks.PlacewashersandnutsoneachU-bolt.Donottightenyet(seeillustrationtwo). If adding longitudinal stabilization, drill the two holes on the side using the pad as a guide. Insert wedge anchors using the same method as 8-11.13. Install strap protectors over I-beam and bend into place. Attach a hook or swivel strap to the inside tie bracket, with sufficient length to go over strap protector on opposite I-beam and down the outsideofthepiertotensionbracket,plus12inchesforwrappingbolt.(Ifusinghook,place hookunderneaththeinsidetiebracketflatagainstthecompressionboard)repeatforoppositeside.14. Tighten inside u-bolts at this time. 15. Use the outside tension brackets to remove any space between the outside tension brackets, concrete blocks and the inside edge of the Vector pad, by tapping the brackets with a hammer. Wedge the pier set at this time.16. Usinga9/16”socketwrench,tightenallofthewedge/anchorbolts,securingtheoutsidetension bracket and Vector pad to the concrete. 17. Using a slotted bolt in the outside tension brackets, insert strap through slotted bolt with end of strap aligned with outside edge of bolt. Turn slotted bolt until straps are tight using at least 4 to 5 turns on the slotted bolts.
Vector Dynamics Systemfor Concrete Applications Instructions (2 of 3)
Vector Padfor Concrete
CompressionBoards,
PVC Pipe orSteel Strut
ConcreteFooter
InsideTie Bracket
U-bolt
Illustration Two
Inside of home
11 Revised: 8/19/08
Vector Dynamics Systemfor Concrete ApplicationsInstructions (3 of 3)
Single Longitudinal System#59036
Double Longitudinal System#59046
18. InstalllongitudinalframebracketstoI-beam(donottighten).19. Attach longitudinal strut to frame bracket and vector pad.20. Pull frame bracket clamps with fastened strut outward to remove any slack.21. Tighten all nuts and bolts on struts and beam clamps.
3/4"
17/32"
from end
Strut
orSwivel StrapConnection
Frame TieConnection
Struts can be cutto any size needed
3/4"
17/32"
from end
Strut
orSwivel StrapConnection
Frame TieConnection
Struts can be cutto any size needed
3/4"
17/32"
from end
Strut
orSwivel StrapConnection
Frame TieConnection
Struts can be cutto any size needed
3/4"
17/32"
from end
Strut
orSwivel StrapConnection
Frame TieConnection
Struts can be cutto any size needed
12 Revised: 8/19/08
13 Revised: 8/19/08
Asphalt Installations
These instructions are for portable classrooms, offices or other structures using I-beam frames. Read and follow all applicable manufacturers standard set up instructions. Minimum depth of asphalt is 2 inches with suitable base material compacted under asphalt.
1. TheAsphaltKitisusedincombinationwiththeVectorConcreteKits59036and59049.Theexpansionbolts provided in these kits are not used. Assemble the asphalt bracket as shown in figure 1, using the carriage boltsandhexnutsprovided.Theheadswillbeontheunderside(flat)oftheVectorpad.Theasphaltbracket will be positioned between the Vector pad and the tension bracket. Repeat for second pad.2. Determine location for piers and place-assembled pad on asphalt, centered under the beam with upturned edge facing to the inside. Place second pad under opposite beam, parallel with first pad. Stack concrete blocks against up turned lip on pads and wedge at this time.3. UsingtheAsphaltbracketasaguide,drillthree5/8”holesintheasphaltata45-degreeangleunderpier. Using a sledgehammer or electric hammer drill, drive rods supplied through the bracket and into the asphalt, leavingoneinchofrodabovethebracket.Repeatforsecondpad(seefigure2)4. Measure the distance between the two Vector system pads at the base where the pad meets the asphalt. Cut twogroundedtreated2x4’sora4x4thislengthandplacebetweenthepiersasshownonpage11.Placea longu-boltunderthe2x4’sandthroughtheholesintheupturnededgeofVectorpad.Beforesecuringwith nutsprovided,place1/2”x1”carriageboltthroughsquareholeinupturnededgeofVectorpad.Thecarriage bolt will be installed with the head of the bolt under the upturned edge with threads showing upward. (Seefigure2,Page11)5. Attachswivelstrapto1/2”boltandsecurewithnut.Strapshouldbeofsufficientlengthtogooveropposite I-beamanddowntotensionbracketwith12–15inchesextra(seefigure.2)6. Insert slotted bolt in tension bracket. Cut strap so there is 12-15 inches available. Insert strap in bolt so that itisflushwiththeoppositesideofbolt.Tightenfourorfiveturnsuntilstrapistight.Secureboltandrepeat for other side.
Figure 1
Figure 2
Example of a Single Section 14' x 72' Home
WIND ZONE I for Single Section HomesUsing Vector Dynamics Foundation Systems
Soil Classifications: 2, 3, 4A & 4BSoil Bearing Capacity: 1,000 PSF MinimumAnchors Required: 30"with2-4"helixanchors(#59095)&12"StabilizerPlates(#59292) with 1-1/4" Frame Ties
Home Length Vector Systems Anchors Required 24+” Piers Longitudinal Required Per Side Up To 24” Pier Systems* (LSD)
0 to 72’ 3 2 3 1(2Struts)
73’ to 90’ 4 3 4 1(2Struts)
Vector Systems
Longitudinal(LSD)
Longitudinal(LSD)
Anchors & Stabilizers
Wind Zone I
NOTES:Vector Systems should be spaced as symmetrical as possible along the length of the home. Pier spacing must be consistent with home manufacturers instruction and/or state requirements.
Maximumallowable working load for metal strut: 3150 lbs.
* One Longitudinal Vector System is made up of 2 struts, which can be used separately.
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Tie Down Engineering 255 Villanova Drive SW Atlanta, Georgia 30336 (404) 344-0000 • Fax (404) 349-0401www.tiedown.com 14 Revised: 8/19/08
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Tie Down Engineering 255 Villanova Drive SW Atlanta, Georgia 30336 (404) 344-0000 • Fax (404) 349-0401www.tiedown.com
Example of a Double Section 28' x 72' Home
Vector System
Longitudinal (LSD)
Longitudinal (LSD)
Vector Systems Vector System
Wind Zone I
WIND ZONE I for Double Section HomesUsing Vector Dynamics Foundation Systems
Soil Classifications: 2, 3, 4A & 4BSoil Bearing Capacity: 1,000 PSF MinimumAnchors Required: None(*Marriagewall and sheer wall anchors may be required byhomemanufacturer)
Home Length Vector Systems Anchors Required Longitudinal Required Per Side Systems1 (LSD)
0 to 48’ 2 0* 1(2Struts)
49’ to 71’ 3 0* 1(2Struts)
72’ to 84’ 4 0* 1(2Struts)
85’ to 90’ 5 0* 1(2Struts)
NOTES:*Noanchorsrequiredforpierheightsupto46” for 28’-36’ wide,38” for 24’ wide. When a pier height at the Vector location is exceeded, an anchor must be installed outside that location, and 1 longitudinal Vector System added per house.
Vector Systems should be spaced as symmetrical as possible along the length of the home. Pier spacing must be consistent with home manufacturers instruction and/or state requirements.
Maximumallowable working load for metal strut: 3150 lbs.
1 One Longitudinal Vector System is made up of 2 struts, which can be used separately.
15 Revised: 8/19/08
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Tie Down Engineering 255 Villanova Drive SW Atlanta, Georgia 30336 (404) 344-0000 • Fax (404) 349-0401www.tiedown.com
Example of a Triple Section 32' x 72' Home
WIND ZONE I for Triple Section HomesUsing Vector Dynamics Foundation Systems
Soil Classifications: 2, 3, 4A & 4BSoil Bearing Capacity: 1,000 PSF MinimumAnchors Required*: None(*Marriagewall and sheer wall anchors may be required by home manufacturer.)
Home Length Vector Systems Anchors Required Longitudinal Required Per Side System1 (LSD)
0 to 48' 2 + 2 on Tag 0* 2(4Struts)
49' to 71' 3 + 2 on Tag 0* 2(4Struts)
72' to 84' 4 + 2 on Tag 0* 2(4Struts)
85' to 90' 5 + 2 on Tag 0* 2(4Struts)
NOTES:*When a pier height at Vectorlocationsexceeds46”, an anchor must be used on the outside wall/beam at thatapproximatelocation.Vector Systems should be spaced as symmetrical as possible along the length of the home. Pier spacing must be consistent with home manufacturers instruction and/or state requirements.
Maximumallowable working load for metal strut: 3150 lbs.1 One Longitudinal Vector System is made up of 2 struts, which can be used separately.
Vector Systems
LSD
LSD LSD
LSD
Tag or Full Triple
16 Revised: 8/19/08
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Tie Down Engineering 255 Villanova Drive SW Atlanta, Georgia 30336 (404) 344-0000 • Fax (404) 349-0401www.tiedown.com
Example of a Double Section 28' x 72' Home
WIND ZONE I for Double Section Homes (High Pier Sets)Using Vector Dynamics Foundation Systems
Soil Bearing Capacity: 1,000 PSF MinimumAnchors Required: 30"with2-4"helixanchors(#59095),12"StabilizerPlates(#59292) & 1-1/4" frame tie with connector
Home Length Vector Systems Anchors Required Longitudinal Required Per Side System (LSD)*
0 to 48' 2 2 2(4Struts)
49' to 71' 3 3 2(4Struts)
72' to 84' 4 4 2(4Struts)
85' to 90' 5 5 2(4Struts)
NOTES:Pier height is measured from top of the Vector Pad to the bottom of the I-beam. Vector Systems should be spaced as symmetrically as possible along the length of the home. Pier spacing must be consistent with home manufacturers instruction and/or state requirements.
Maximumallowable working load for metal strut: 3150 lbs.
* One Longitudinal Vector System is made up of 2 struts, which can be used separately.
Vector System
LSD LSD
Vector System
Anchors &Stabilizer Plates
Unit WidthSee belowchart
I-BeamSpacing
45˚Min.
156”156”156”164”164”164”
180”Min180”Min180”Min140”Min140”Min140”Min
82.5”95.5”99.5”82.5”95.5”99.5”82.5”95.5”99.5”82.5”95.5”99.5”
88”70”65”98”81”76”
119”101”96”66”48”43”
86”69”64”96”80”74”117”100”95”64”47”42”
85”68”63”95”78.5”73”115”99”94”64”47”42”
Wall Height & Trib
Max. Pier Height
7.0’Trib=19’
7.5’Trib=18’
8.0’Trib=17’
UnitWidth
W
I-BeamSpacing
IBS
Wind Zone I
17 Revised: 8/19/08
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Tie Down Engineering 255 Villanova Drive SW Atlanta, Georgia 30336 (404) 344-0000 • Fax (404) 349-0401www.tiedown.com
Example of a Single Section 14' x 72' Home
WIND ZONE II for Single Section HomesUsing Vector Dynamics Foundation Systems
Soil Classifications: 2, 3, 4A & 4BSoil Bearing Capacity: 1,000 PSF MinimumAnchors Required: 30"with2-4"helixanchors(#59095)with1-1/4"Vertical Ties
Home Length Vector Systems Anchors Required Anchors Required Longitudinal Required Per Side - 6” Eave over 6” Eave Systems* (LSD) 0 to 48’ 4 4 5 2(4Struts) 49’ to 60’ 5 5 6 2(4Struts) 61’ to 72’ 6 6 7 2(4Struts) 73’ to 84’ 7 7 8 2(4Struts) 85’ to 90’ 8 8 9 2(4Struts)
VectorSystems
Longitudinal(LSD)
Longitudinal(LSD)
Anchors
VectorSystems
Wind Zone II
NOTES:Vector Systems should be spaced as symmetrical as possible alongthe length of the home. Pier spacing must be consistent with home manufacturers instruction and/or state requirements.
Maximumallowable working load for metal strut: 3150 lbs.
* One Longitudinal Vector System is made up of 2 struts, which can be used separately.
18 Revised: 8/19/08
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Tie Down Engineering 255 Villanova Drive SW Atlanta, Georgia 30336 (404) 344-0000 • Fax (404) 349-0401www.tiedown.com
Example of a Double Section 28' x 72' Home
Longitudinal (LSD)
Longitudinal (LSD)
Vector Systems
Anchors
Wind Zone II
WIND ZONE II for Double Section HomesUsing Vector Dynamics Foundation Systems
Home Length Vector Systems Anchors Required Longitudinal Required Per Side Systems1 (LSD) 0 to 48’ 4 4 2(4Struts) 49’ to 60’ 5 5 2(4Struts) 61’ to 72’ 6 6 2(4Struts) 73’ to 84’ 7 7 2(4Struts) 85’ to 90’ 8 8 2(4Struts)
NOTES:Vector Systems should be spaced as symmetrical as possible along the length of the home. Pier spacing must be consistent with home manufacturers instruction and/or state requirements.
Maximumallowable working load for metal strut: 3150 lbs.
1 One Longitudinal Vector System is made up of 2 struts, which can be used separately.
Soil Classifications: 2, 3, 4A & 4BSoil Bearing Capacity: 1,000 PSF MinimumAnchors Required: 30"with2-4"helixanchors(#59095)with1-1/4"Vertical Ties
19 Revised: 8/19/08
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Tie Down Engineering 255 Villanova Drive SW Atlanta, Georgia 30336 (404) 344-0000 • Fax (404) 349-0401www.tiedown.com
Example of a Triple Section 32' x 72' Home
WIND ZONE II for Triple Section HomesUsing Vector Dynamics Foundation Systems
Soil Classifications: 2, 3, 4A & 4BSoil Bearing Capacity: 1,000 PSF MinimumAnchors Required*: 30”with2-4”helixanchors(#59095)with1-1/4” vertical ties (*Marriagewall and sheer wall anchors may be required by home manufacturer.)
Home Length Vector Systems Anchors Required Longitudinal Required Per Side System1 (LSD)
0 to 48' 2 + 2 on Tag 4 3(6Struts) 49' to 60' 3 + 2 on Tag 5 3(6Struts) 61' to 72' 4 + 2 on Tag 6 3(6Struts) 73' to 84' 5 + 2 on Tag 7 3(6Struts) 85’ to 90’ 5 + 2 on Tag 8 3(6Struts)
NOTES:Vector Systems should be spaced as symmetrical as possible along the length of the home. Pier spacing must be consistent with home manufacturers instruction and/or state requirements.
Maximumallowable working load for metal strut: 3150 lbs.1 One Longitudinal Vector System is made up of 2 struts, which can be used separately.
Vector Systems
LSD
LSD LSD
LSD
LSD
Tag or Full Triple
Vertical Anchors
20 Revised: 8/19/08
D10
30
Tie Down Engineering 255 Villanova Drive SW Atlanta, Georgia 30336 (404) 344-0000 • Fax (404) 349-0401www.tiedown.com
Example of a Single Section 14' x 62' Home
WIND ZONE III for Single Section HomesUsing Vector Dynamics Foundation Systems
Soil Classifications: 2, 3, 4A & 4BSoil Bearing Capacity: 1,000 PSF MinimumAnchors Required: 30"with2-4"helixanchors(#59095)with1-1/4"verticalties
VectorSystems
Longitudinal(LSD)
Longitudinal(LSD)
Anchors
Wind Zone III
NOTES:Vector Systems should be spaced as symmetrical as possible alongthe length of the home. Pier spacing must be consistent with home manufacturers instruction and/or state requirements.
Maximumallowable working load for metal strut: 3150 lbs.
1 One Longitudinal Vector System is made up of 2 struts, which can be used separately.
Home Length Vector Systems Anchors Required Longitudinal Required Per Side Systems1 (LSD) 0 to 54’ 6 6 2(4Struts) 55’ to 63’ 7 7 2(4Struts) 64’ to 72’ 8 8 2(4Struts) 73’ to 90’ 9 9 2(4Struts)
21 Revised: 8/19/08
D10
30
Tie Down Engineering 255 Villanova Drive SW Atlanta, Georgia 30336 (404) 344-0000 • Fax (404) 349-0401www.tiedown.com
Example of a Double Section 28' x 62' Home
Longitudinal (LSD)
Longitudinal (LSD)
Vector Systems
Anchors
Wind Zone III
WIND ZONE III for Double Section HomesUsing Vector Dynamics Foundation Systems
Home Length Vector Systems Anchors Required Longitudinal Required Per Side Systems1 (LSD) 0 to 54’ 6 6 2(4Struts) 55’ to 63’ 7 7 2(4Struts) 64’ to 72’ 8 8 2(4Struts) 73’ to 90’ 9 9 2(4Struts)
NOTES:Vector Systems should be spaced as symmetrical as possible along the length of the home. Pier spacing must be consistent with home manufacturers instruction and/or state requirements.
Maximumallowable working load for metal strut: 3150 lbs.
1 One Longitudinal Vector System is made up of 2 struts, which can be used separately.
Soil Classifications: 2, 3, 4A & 4BSoil Bearing Capacity: 1,000 PSF MinimumAnchors Required*: 30"with2-4"helixanchors(#59095)with1-1/4"Vertical Ties (*Marriagewall and sheer wall anchors may be required byhomemanufacturer)
22 Revised: 8/19/08
D10
30
Tie Down Engineering 255 Villanova Drive SW Atlanta, Georgia 30336 (404) 344-0000 • Fax (404) 349-0401www.tiedown.com
Example of a Triple Section 32' x 72' Home
WIND ZONE III for Triple Section HomesUsing Vector Dynamics Foundation Systems
Soil Classifications: 2, 3, 4A & 4BSoil Bearing Capacity: 1,000 PSF MinimumAnchors Required*: 30”with2-4”helixanchors(#59095)with1-1/4” vertical ties (*Marriagewall and sheer wall anchors may be required by home manufacturer.)
Home Length Vector Systems Anchors Required Longitudinal Required Per Side System1 (LSD)
0 to 48' 3 + 2 on Tag 5 3(6Struts)
49' to 60' 4 + 2 on Tag 6 3(6Struts)
61' to 72' 5 + 2 on Tag 7 3(6Struts)
73' to 84' 6 + 2 on Tag 8 3(6Struts)
85’ to 90’ 7 + 2 on Tag 9 3(6Struts)
NOTES:Vector Systems should be spaced as symmetrical as possible along the length of the home. Pier spacing must be consistent with home manufacturers instruction and/or state requirements.
Maximumallowable working load for metal strut: 3150 lbs.
1 One Longitudinal Vector System is made up of 2 struts, which can be used separately.
Vector Systems
LSD
LSD LSD
LSD
LSD
Tag or Full Triple
Vertical Anchors
23 Revised: 8/19/08
Vector DynamicsFoundation Systemsby TIE DOWN ENGINEERING
Installation Notes