Document O3m9VzQxeke314xaXamwZpnwK

-I * < 1 i pin Ho. 1 and Engineering and Purchasing LEAD INDUSTRIES ASSOCIATION Per#oonel i c a s t 41h s t r c c t NEW YORK IT. N. V. Bovember ZJ, 1959 SUBJECT! "CURKEWT PRACTICE g ISCLAIIWG BUILDINGS FSCH VIBRV TIOH WITH LEAD-ASBE3T0S PADS" TO Members of the Lead Industrie* Association) A copy of cur nev flyer, "Current Practice In Isolating Bui Ulnae frcn Vibration vlth Lead-Asbestos Fade" le attached. Thle leaflet cover* only the uae of lead-asbestos pads In building foundations. Similar pads have also been used to Isolate vibration frcn printing presses, air ccnlltlomlng cooling towers, rubber Bills, laundry machinery and other equlpoent that Is a source of vibration. Later on ve expect to publish similar literature dealing vlth other applications and ve hare In progress a research project designed to develop complete engineering data about these pads under a vide range of l"ad* and frequencies. Heacvtile ve will be glad to cooperate vlth members In the solution of vibration problems vhlch they coy have In tbelr own facilities. Approximately 13,000 copies cf the attccbed are being distributed to cur architects and contractors nailing lists. Extra copies, up to 25. arc available to members free of charge and above that quantity at our cost of $4.30 per hundred. Very truly yours, S3, Att. Secretary > *4$k LIA22433 $ * *' * -* 'Y N 1962.01 'It^ >&4i .! ..m .. _. .is U**a C**W4Vt N* Y*fi *< hwMn w I It l4 >it<rfw f*4% ^si`:^y * vrnrn v.^n . akn`'" -*1 -- . `^ urrent Practice in Isolating O For tome 45 year* lead-asbestos ph hot horn used in buiUin| fiMmdrthMt to present transmission erf \ih|ihw fawn the $round up kilo the kiMinp. Thu practice tut hem followcxl mod generally where the Kaldmp are adjacent lo rairuad tracks. hut has mho been employed where huitdmp aie mdpceiu lo sub way* and even where (he source of sfcralion h simply from heavy* traffic on a lreet. The new 54-story Union Carbide UuiWmf. two-thirds of which Nradtfles the Vcv Voci Central's rail* road ItA'Upc into Grand Central terminal m New York, h one of the most recent examplev Thh buildinf almost literally "IVuix on lead" m each of 115 wed columns supportinf he new sLvxcraper rests on lead anti-vibration pack. the accompany inf draw inf illus trates the construction of the park, tests made many years apo at Co lumbia I'nisYrut) for the New York C entral Railroad showed that lead and asOC'lo* in combination were more efficient in pre'enimp leans* mission of vibration than either ma terial alone and better than a num* k*r of other possible malcrLIv This omboiitiin pad has the ahtUv. mfrexturnik found in vihraIsn isiblm|i materials, lo cam I*ms s kvds. I rad, because of its vi bration dampinf properties and re sistance lo corrosion is ideal for the shell. It it also easily fabricated to provide a completely sealed water- tight protective envelope for the as- berios and sleek The method used to notate the vibration from the buildinf is shown in another draw inf of one of the supporting columns. The foot of eadi column and associated sub structures are set in a concrete pier. The column itself rests on a $rillafc of *T" beams, set on a sled hcarinf plate which in turn reus on the lead pads over the concrete foundations. Shoulders of the frillapc under mans of the mam support columns arc covered with additional lead pads w hich in turn are covered w ith #* m. of reinforced concrete. This ew* Crete supports ballast and railnvd tracks which pass directly over k*(h sides of the piers. Interior sides of the concrete piers arc lined with cork. a Architect'# for the Union < Buildinf arc Skidmore. Owinp and Merrill, the fcrural contractor is the Geofpc A. fuller Co,, and the nads were manufactured and installed by lohii F. Abernethy amt Co., Inc., of Brooklyn. Ihe buildinf which was demol ished to make wax foe the new structure was the old Marpuery DETAIL Of FOOTINGS FOt UNION CAfellDE lUUDiNG Jf *i  --mOFjwu, i,ii. nmjyyggjpmaij ib m.i mi ' * -'---i v-^ *- ^ LIA22435 k Buildings from Vibration \^th Lead-Asbestos Pads Hold, erected around the time of World War I. It. loo. retied on lead* thcsicH pad* hich were found to he in almost perfect condition, with practically no coerovion or dime** uorul change, after more than 40 yean of aervice. Many other buddingi have bocs erected on auch pad* over Ihe yean. They' include mod of the mayor structures on Pari Avenue along the New Ynrt Centra!** right of way. The WaKJorf*Atloria, Billmore and Roosevelt HotcK and (he Graybar Building are cvamplev The Pcnnsyl* vania Kailnvjd** .VHh Street Station in Philadelphia, the New Yorl Ccn* irat's Buflalo. N. Y. Station, and the Canadian National Railway* Mow* lreal Station arc othorv The magnifi cent new Queen riuahcth Hold in MiWired rests on lead pads as will Ihe Place Vide Marie project. the British romnvwarallhk largest of* fce building, when completed. In the new Grand Central ( B^cr Grand Central Terminal andihe Guaranty Morgan Trust Co. hudJmg on Tilth Avenue, wilt also employ these padv A unique appli* caisMt mas to pMecl the Bell Tele phone IjiNrratoriev with their de!* cate instrumenls when tailroad trait were run right through the Kiddiftplselwccn the second and hi th Aoorvfmo apartment building* ad* Alatia ftwMiaa k P-9<W !, C-MllWJ^--V--WlLV.W_.I* Jaha A. kW- msamm^az ?0< 4 IXTIiWl DtAMhli af tW + d Wad aMUiWniai 0*4* *t*a Is Am (a m1 Im Na YaA hwWiayi. A* Wh. a Am atWn>< a* W*f Wtk Ah , -- Wawaa ft WrM. mHVch. M. 6. talca**. frcsral -- a*f at riyM (ha 1*11 Takphaa* Wadkf. hdnad hack ae+waHy mb (kaafh (ha third ftaar W ftaf* laharatcry aad tint separate (aadltiaw ittlay aa lead pads (a a*a*act 4*J*cek a(varii Mad k (ha haMkg. tha *** JMtiferw Villa Mark e*a hwRdioy a** bek* w n H k MaaWeal aka sapparted a* aad eaSi- t M. f*i g Aiminw --hike*. MtllUlNARY mCiflCATlONS POft HACI Vlllt MARK PTVUOdMtNT _ 1 Wa^tSM Ijmin.ta jl.i ajMIU.lUC . IJIIH .I I i WM11I. U-JU1! - -..UH!!*" ' :< -iw* Ir . v" '~~~' Li*22*3 jSW ' ri friiii^^tafeuiiatfe^ = *: : , * it 1 1 i r,j ;}j 3 Ln* 5 i -t H i ? : Sample Specifications* for k ANTI-VIBRATION PADS OR ISOLATION PADS ExctpT at otherwise shown on detoil plant, special insulation pods shoR be provided onr^^ ploced between ol column bases cr gnfioget and the tops of concroto foundations. These pads shall bo mod# of five layers of matorial, asfoDawsi 1. Top layer of K -fodi sheet lead. 2. Upper layer of K-fech asbestos rol fire felt. 3. Middle layer 12-gouge galvonized shoot stool.' 4. lower layer of SB-inch asbestos roll (trefoil. 5. Bottom layer of Vt -inch shoot lood. The top and bottom layers of shoot lood shoB bo lood burned together while the pod is recomprested al 200 psi to form a water tight envelope around the inside layers. Before setting in place pads shod be given one coot of approved asphoh point. fg Nlviil Itf ttt faim CvIMi MkH^, C Th* Qwoo tiWU H*Ui'm Mfoed W -- bad pads W<%.* * bi toirtoti * MiM--I m* .A taccnt it* the So b York wtmay rc- oatmun loath on ihetr path in me cent)} had these yid* specified fur oere about Mo Ih. per *q. in. hut 1 the*. engineer* have found that heavier ifc Time f*J IPX have demonstrated loath are pendhlc. Loath oo the n*ndu*ivdy the dIciii*<tCM of path in the Uletl imullatiom run '<k [ lead tdetliH path for vihatiM ho- from hOU to I .OCX) lb. per tq. in. lotion and ha\c aim led to improve* To help archileels and engineer* V -j[ J I: Pp.-lFn menu in Uhricalkwi and application. Today. the edge* of the path are tealeil nhile the path are tinder 2<KI with their design prohtcmv to get matimum performance at minimum cud Ih. (nd Industrie* Association Ih. per m| *. pressure. prvciodtng hat recently initialed a mmprehen* any pHtiitlilx of the entrapment of the led prtvgram lo develop engi air. and the nipt arc more effec neering data on lead path over a tively vealnl by lead burning The ide range of frequencies and loath. center tied duett are included tor These data u-il be made nidety stiffening to make large path easier available tv soon n the led pro h handle and install. OrifirwNy gram it erwwph'led. fo4>ogyl.oig tSrgd lOti S**#f $<***. fV3doJk^. (***] ttiH * W*d ^Wk tutiw. A^onen, Nihit *d WfceBg. TW Nt Ygri Cb*W Ttneinl aaah M t*d-rtWstes poik Bad Wfmpt, a^MHtH. f. I. ftMM*, kWf o o 0*im -- > i S