Tie-down Vector Dynamics Foundation System for Wind Zones I Bedienungsanleitung PDF herunterladen (Seite 15)

Page15      4/3/2013

VECTOR DYNAMICS INSTALLATION DESIGN INSTRUCTIONS

VectorDynamicFoundationSystemsmaybeusedonlyonhomessetonsoilsclassifiedasClass2,3,4Aand4Bas

described in the table below:

SOILCLASSIFICATIONS

 SoilClass TypesofSoils BlowCount(ASTM SoilTestProbe(1)

   D2586) TorqueValue(2)

 1 Soundhardrock...... NA NA

  Verydenseand/or 40-up Morethan550lbs-in.

cemented sands, coarse

2 gravel and cobbles,

preloaded silts, clays,

and coral’s

  Medium-densecoarse 24-39 350-549lbs-in.

3 sands, sandy gravels, very

stiff silts and clays

 4A Loosetomediumdense 14-23 275-349lbs-in.

sands, firm to stiff clays

 4B andsilts,alluvianfill  175-275lbs-in

  Peat,organicsilts, 0-44 175lbs-in.

 5 inundatedsilts,loosefine  andlower

sand, alluvium, loess,

varied clays, fill, fly ash.

(1) The purpose of the soil test probe is to gauge the strength of the soil below the surface and near the anchor’s

helical plate. The strength of the soil is estimated in terms of its resistance to penetration (flow) under load by

means of the torque probe and is measured in lb-in. The test probe has a helix on it. The overall length of the

helicalSectionis10.75in.;themajordiameteris1.25in.;theminordiameteris0.81in.;thepitchis1.75in

The shaft must be of suitable length for anchor depth.

(2)Ameasuresynonymouswithmomentofaforcewhendistributedaroundtheshaftofthetestprobe.

Vector Foundation Pads Equivalent to Footer Pads*

Footer Size:

16x16=256sq.in.

or16x18=288sq.in.

EQUALS

1VectorPad#59310

Footer Size:

20x20=400sq.in.

or17x25=425sq.in.

EQUALS

1-VectorPad#59271

432 sq. in.

Vector Pad(s) exceed the surface area required when used as the equivalent listed above.

*Foundationsinsoilwithabearingcapacityoflessthan1,000PSFmustbedesignedbyaRegisteredProfessionalEngineerfamiliarwithsiteconditions

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