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Augusl i R. Z�)Ild <br />�1r. .litn l�hom;is <br />liclvcdcrc Lols 32 and 33 <br />I.F A .loh Nu. 4AOR8 <br />P.i�c I d <br />LA'fi�.RAI, til�l'I'OR'I'ti <br />Uuc lo lhc slrndcmcss naturc ol� pin �iilcs. thc Inlcral lo��d resistancc c.ip:icity ul' ��crtic�d pin ��ilcs <br />should hc nrglecicd. Rcsistancc against lalcral loads on ihc building may hc pro��idcd wilh <br />haUcred pin ��ilcs or t,rhack ,inchors. Il:�ttcrcd pin pilcs may bc uscd lirr resisling lalcral IoaJs in <br />Ihc dircctiun a��:i}' I'rum Uic siccp slupc. BaticrcJ pin pilc shuidJ nol bc inclincd slccper lhan <br />SV:11I. 'I ichack anchurs shoulJ hc uscd liir resisling lalcral loads in Ihc directio:i lo�cards lhc <br />stccp slorc. Pin pilcs and hclical anchors and Ihcir ncccssorics should hc cuatcd wilh a�phallic <br />p.�int or �alvanircd lo providc long-Icrm corrosion prulcclion. <br />fichuck cmchurs ma�� consist of hclical anchors. I lclical anchors consisl of a Icad scctiun and <br />scctions of cxlcnsion h:irs Ihul can ho aJdcd on lu ihe load sccliun. 'fhc Icad scclion is tuadc of <br />singlc or mulliplc slccl hrlical Ilighls �vcldcd onlo a squ:irc slccl bar. 'fhc h�lical anchurs ca!i bc <br />scrcwcJ inlu Ihc gruunJ at a sl�mlcJ anglc ���ith u drill hcad lo sc;u intu a lirm soil slrnla to <br />Jcvrlup required rulluut resitilancc. Ilclical anchi,rs arc �_ommcrcially m:iilnhic from A. Il. <br />Chancc Cumpany or Atlas Company. <br />I Iclical anchurs. if usrJ. sh��uld hc sc�ilc� intu tiu tmdcrlying dcnsc Iu vcry densc Issperancc ti:inJ <br />�Icposits. 'I hc p�dloul rnpacity uf hclical anchurs is dircctly rclatcJ tu th� lurquc rcyuirc�l In <br />ad�ancc Ihc ,mchur asscmblics anJ thc I�pc uf suils intu �vhich thc anchors arc intilallcd. \'�'hrn <br />sc�ilcd inlo Ihc drnsc lo vcry-dcnsc Isper:mcc tiand Jc��usils, �vc cslinudc a hclical anchor ��'ilh ,i <br />Icad scclion uf an R-inch :inJ a 10-inch hcliccs can dcvclap an uhim:uc pullout r.ipucily of ahuut <br />10 !nn. and our rccummcndatiun li�r thc allo�v.�hlc pulluul capacit)' uf' such hclical pirrs shuuld <br />n�t r�cir�l I II I,i��ti ��.•r r;icli h;isc�l im �i I:icinr t�l s�ilcl) ��I�:il Ir;itil �.0. <br />LIU & ASSOCIAT�,S, INC. � <br />3� <br />