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HomeMy WebLinkAboutENGINEERING LETTERSPhoenix Really Hornesjnm Attention:, Alan Tarpell 1760 N,.,Jog Road, Suite 140 VVpsj Pilmi Beach,'Florlda 33411 IED Florida's- Leading-tagineering, Source mg 6 ThnashOld and Special Inspections e Plan RevleW & Code,Ccunpilance November 17, 2016 - Revised February 21, 2017 RE: foil EkoldrAtidri.Addendurn k - k6licaf Nine far,'Oo6l: Proposed'One-Story Residence 121 Queen Gurievter.court, Font -Pierce, Florida ,GFA Project # 1646%01 (Refqrpqce:GFA Gootechnicall Report #A64614.00 dAt6d 712W2016) (Reference GFA Report 1111"614.01 Report of Test Piti and Auger Borin6sdat6d 1111612016) Deaf Me., Tarpell: OFA international was requested to provide helical pile ,reqqrrimendellions. for pool support at the above referenced project. The subsurface exploration activities from, reports referenced above, were performed" in accordance"With Chapter 14 of the Florida 'Building Code (applicable addition): and 4pplicablel ASTM standards. The', boring logs and site plans, are;,attaohed to this report forreference., Helical I pile. recommendations are pedvided'15616W based on ttia'boringd: Pile Foundation (Helical Piers) H - elical-piers consist of galvanized steel -shafts with helical flight augers qrjthe ,bottom shaft The shafts are boltbd7 together asIK6 shafts are drilled Into thd� subsurface. The! torque applied to the piers during arilli' - -- 'ad I 9omprqss(9nca city of the heficalpler. Theshaft drei.cufto the appropriate drilling is corealat jqthq PA. cut=off "eleV6tion,-andl typicaiV Pile caps, grade beams. or fdolings, are' cast on, the top off thehelical piers,, Helical pidetIor these typ'e'of struidtuires:lenarally re7quire"a 4 to 12 ton; capacity We. recommend the piers be spaced atleast , i '3 dameters,'(Jarg6sl, helical diameter): apart didfitdir-to-' teir. To obtain -1required ' I a)d it c apaciiY,- ,I ,h6, pie rs would . likely. have ,, --to . be installed and seated into the medium dense to V6 I ry dense sand encountered ftiriaboutl 6�1, to 35166kbelow- existing grade. The length 64 the piers could wdellicl, Opyond, 3.5 feet before yphievin the required: tor-'- -6fiding .9 Weed: torque an correso edwadity. Each pier must be. installed Wifta 521 NW Enterprise'Dely-e t- Poet Stluqlq, Florlda 34906 A (772) 9244675 � (772),924-.3580 (W) -, wwk.teaftfa.com. Oma6THROUGHouT FLORIDA` Soil , Exploration Addendum #2 : Helical, Piers for Pool 'November17,2016 Iv duam durieviiar.court,'Fort Pierce, FL Revised February 21,2017 GIF4, Oirg)"'I'liA 410 IL dl� ln,accordanoewith'Section'1810,3.3.,I,g of the Florida Building Code, the allowable abdal'dosign load, Pa, of shill',bet determined as follows: Pa = 01.5 P; , (kquation 10-4) where POs the least value of. 1, Sum of,the.areas ofAhe helical Waring plates.1iniesthd ultimate beatinij capacity of f cai he s6ilbr rock carnpdsirig'thq, beadng��iiatum_ 2. UftfiWato'capefditV 46t6rinir-fedir6ri`Well=ddciiinenied correlations with Installation torqu 9, ' Ultimate capacity determined from loadtest&, 4. Ultimate zudil capacity of. p7ife'-sihafft- &.Ultimate.axidl capacity of pile shaft couplings. 6-Sum of'jha ultimate axial pap4cityof helical bearing plaitesaffixed'to pile. Helical pier Oeqjign, and, installation is proprietary in.natUre. The'tocatiMs,drid'required capacity of the piers must bedesigned by the structural engineeror other quailifieO,.'pFpf6s6ipnal. Helical, plle'iupporf recommendations are based on Ihe existing ,structures (including existing ..footings and slabs if applicable) having structural "integrity which will: be determined by others. GFA recornmeirids thiWai ripiseantaiwee of"dFA monitor' thw helical pier "installation In accordance with We Florida Building Pods. Installation of piers .should be performed after all utilities havebeen identified and lqceifed to -avoid. installation problems and for safety reasons. These services were notWithinour scope of services. Fill and backfill should be "clear" aa6d'with, lets. then 56/4fines (percent of dry weight-paseina a U.S..t46_200' slave). The fill (including backfilm l around pile caps and.grade beas) should be -placed in 12w inchAlck compacted lifts' with each I I I ift - compacted I I . t 1 0 at I lea s . t. . 9,50% of th . e . modified "Proct6i, ma ximum dry -density (NSTIVIDA55 .7he compaction should bechecksdwith�fleld-ddnsitr ty Y tests. copies. CjIqn((2) I an 611k,El., Manager Report * 1611 614300 dated ,7/2­6/`201_6,,(7_ pages) 1614.00 Report of Test; its and Auger .Borm a : Q GFP mot. -LUG1104UUMV F/orldit's�Leadijfg-Engineering .,,Source - Comlmcd6n Materials Tftllng'- Threshofti-and Special inspections w Plan Reviews Code C6mpi[mco Phoenix Realty Homes, Inc. Aftionfion:,,Alan T-arpell- 1760 W Jog" Road, Suite 140, West P.61ni Beach.; Florida 33411 November IT, 2016 Revised February 21, 2017 RE: Sol] Fkolordeidrt Additinduin *2 - Helical[ Piers for Pool' .Proposed One -Story Residence !!I Queen bundvler.Coiurti, FQ'it,01eirce, Florida ,GFA P - roJect # 11&1614.01 ,(RPierencewA teotechnical'Repart #164614.00 dAted 7126f201 6) (Reference 6FAReport iVig.,1614.'OlReport bfTest Pits and Auger Boririgi..datbdll/16/2916) Dear Mr: Tarpell: dFA International was requested to provide helical pile" recommendations, for pool support, at the above referenced project. The subsurface ex'ploration"activities from reports referenced'above were pelormock In accordance, with Chapter 14 of the Florida Building Code '(40plidabld addition) and 'applicable ASTM' standards. The, boring logs and site plaWare:.attacfied to this report for :reference, Hellical pile, recommendations lire prdvided'bolow based on th&boflngs: Pile Foundation (Helical Piers) Aeficai-pidirs donsistof gaivarilzed feetshaftsm helical igaugers..- - A - - , , . - ., I ". ,shafts, th he ical A,' hfon the -bottom shaft. The are bolted tog6thef as'the shaft Are drilled into they subsurface. The torque applied to the piers'during- ddIli6i.IqtoiTeIat.edjqjhq compression capacitycif the helical pier. Thci�shafts; are cut the' appropriate-z d6 6, � I helical -I cut-elevatiom. and typically, pile imps, grade eams, or " ,oqjirigs: are cast on: the top of, the; helical. piers.. Helical piers for these type of Wudtueet:t[eneraI1yrequire a 410 .12 ton; -capacity . We recommend ithe; plers be spaced at least '3 diameters ,(Iargdstl helical dlaffidter) apart 6driter46-center. To. obtain - re ;. u -�ea � mda(';capacity,-' thO plans would: likely he vq, to be , installed and, seated into the medium dense ,6very dense sand ,encountered from about :iE.p�.,, i63s'ie'ei-be'low' .exitfing-io-rade.The ldngth0 the piersc0qj4extend,bpyond 36 feet before achieving" the requirectorqua and; coribspondiig capacity. $21 NW Enterprise D %- Pork St Luclqj Florida 3066 v (772) 9244575 e (772)9243580-(fk) - wWWAming1h.com- OFMCESTWROUGHlcim FLORIDA, toll Explpra!!on Addendum #2 = Helical Pikirs-for Pool 'November-17,2016' ip dueen dunevier.Courti-Fort Pierce, FL Revised.F . eb'ruary:21','2017 In accordance,with,Sectionl8lO.3.3;'I:g of the'Floride Building Code, the allowable a4ai'design load, Pa, of shiiiII-be-Aeter -mined as, follqWs-,; Pa = 0.5 P, (kqq. klip.ri 18-4) where, P614-the least value of. 'I. Sum of the: areas cf!the helical b6drifij.1plates. times the 'ultimate bearing capacity of the soil or rock comprising tile, bearing, itnaturn., kv O_­ 2. UlthWate aterailit6d,frorh'Well-;ddctimented correlations with tinstallation torau 3.,Ultimate,pappcity determined from load'testii. 4. Uldmiiitii axial capacity ofpile--ihaft. 5i.Ultimate axial capacity of pile.'shaft couplings. b.Surn ol"the ultimate axial capacity of helical bearing pl4testaiffixed to pile. Helical pier design artil..installation Is proprietary in,natUre.'Thb locations and required capacity of the piers must be designed by the structural engineer, or other qualified professional. Helical: pile support re6ornm6ndatiori§'are bated on the existing structures, (including existing footings and,slabs it applicable) having structural integrity, which ,will be determined by others. GFA recomim"dridsth-ata representative" e I p regeritati", of GFA monitor thehelical pier` Insiallitloft'lln accordance with the Florida Building -,code. Installation of plers:should be,performed after a I li utilities have; been. identified and located to avoid installation problems and for safety reasons: These services -were not iMthin our scope ofteNices., Fill and 6ackfill should be 0clean" iiaridwith.less than M% fines (percent of dry weight -passing. a U.S. f4o. 200 sleve). The fill (including backlill around pile caps and, grade. beams) should be" pieced in 12- inchAlckocomoac,tb'd lifts with each lift ift - co , n! , pacted - t . o at least,95% of the . imodiffied, - Proctor ma)UMUM Or % . y1oprisity,(PATM'D 1557).Tha compaction should beichecked VAtti•fjdld'd6nsityt4§sW, QcpIes;; QRprit.'(2) Z4a I h Wild, EA.. Manager kaport xia,=1614306 dated 7126i201,6,(7 pages) 014.00, Report of Test Pits andAugee Borings GFN Potential Upgrades - 3923 Duneside Upgrades Already Done Paid For Items cost Kitchen cabinets T $6,360 Landscaping 1 $6,000 Upgrade Requested by Buyer Wood beams in master $3,400 Solid vs. hallow core doors $2,800 Stone wall with wood surround $4,000 Wood floor in den $2,100 Pocket door in master $900 *Allowances on Items: Estimate on counter upgrade: $1,500 Estimate on appliance upgrade: $1,500 Washer and dryer $1,400 Upgraded tile on living rooms, master & guest floors after factoring in carpet credits at $4/SF vs. $1.79 = $2.21 Add another $1.5SF for mudset vs. thinset. = ($3.71/SF 1,600SF). $6,000 Estimate on bathroom tile upgrade: $1,500 Lights and fans $3,250 Comfort Toilets at $75 per extra $225 Total For All Upgrades $40,935