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nugust IR.'_U0�1 <br />Mr..lim l hum;is <br />I3clvcdcrc Lols 2? ;in�l 33 <br />LfiA Joh No. dnUSR <br />P.igc 13 <br />may bc uscJ. I hc nho�c soil ��aranulcrs arc unf,iclurcJ c:ducs. and a proper I�oc�ur ol�.s,dcly <br />should hc uscd in calculalin� Ihc resis�ing Ibrccs ;igainsl I:dcral luads on Ihc•huilJings. <br />I'l l.l�. I�OUNDA'IIONti <br />Wc rccununcnd slccl pin pilcs hc usrd il� pilc li�und:uiuns hu�•c lu hc usrd lo .nce� Ihc :ihu��c <br />sctback rcc�;mmcnd:diuns. tilrcl pin pilcs arc construcicd of small diamcicr stccl pipcs. R�c <br />rccummcnd that slccl pin piics hc cunsU'ucicJ �cith d-inch-minimum stand,ird slccl pipcs (4.5 <br />inch utdsidc dianulcr h}' 0.�37 inch �call �. <br />i'in pilcs shouid hc dri��cn �eilh a hydr:wlic mcch;mical h.�mincr at Icast R50 pounds dcli�crii:� <br />G00 blows per minulc minimum, or a dil7crenlial-acling air hammcr al Icasl G00 puunds <br />Jcli��cring GUU hlows per minutc minimum. or cyuivnlcnl hanuncrs. I'in pilcs shuuld hc Jrivrn lo <br />penclralc Ihrough thc surlicial loosc soils and scatcd inlo Ihc unJcrlying vcry-sli(Tto harJ Lawlon <br />Clay soils of linc sanJy sill to clnycy sill. I:ach pilc shoulJ hc drivcn lo "rcfusal" ciclincd as "ul <br />Icost 25 seconds af cuntinuous dri��ing lirr onc inch ol'pilc pcnctratioii'. <br />I'in pilcs ol� d-inch s�and.ud pipr dri�cn lo "rcl�usal" should bc ablc lo dc�clup an ullim�dc <br />L•carin�! r.q�acily ol' 18 lonti per pilc againsl :ui;d compressi��c load. 'I�hc alluwablc hc.iring <br />capacily of pin piles shotdd nul hc morc Ihan 9 tons per pilcs hascJ �m a f:�clor of salcly o( 2.0. <br />�. nnc-Ihird incrcasr in lhc aho��c ncummcndcd allo�cahlc pilc hcaring aqmcily ma}' hc uscd <br />��hrn cunsidcring short-tr�m. Irmsitory. �cind ur scismic loads. Por long Icrm corrosion <br />prutccli�m. slrcl pin ��ilrs nnd thcir acccssorics shuuld hc gah:mizcd or coalcd ��ilh hiluminous <br />��aint.. <br />LIU & ASSOCIA"1'I:S, INC. <br />