Qhov zoo tshaj plaws expansion ntsia liaj qhov rooj rau ntoo? 

Koj pom cov lus nug no tshwm sim hauv cov rooj sib tham txhua lub sijhawm, thiab ncaj ncees, nws yog ib qho cuab yeej me ntsis. Tsis muaj ib qho lus teb zoo tshaj plaws uas haum rau txhua daim ntoo thiab txhua qhov kev thauj khoom. Ntau tus DIYers thiab txawm tias qee tus kws tshaj lij tau dai ntawm cov lej ntawm lub zog lossis cov npe, tsis nco qab tias ntoo nws tus kheej - nws qhov ntom, hnub nyoog, kev coj noj coj ua - yog qhov sib txawv tiag tiag. Kuv coj? Qhov zoo tshaj plaws ntsia liaj qhov rooj yog qhov koj nruab kom raug rau koj qhov xwm txheej tshwj xeeb, thiab feem ntau txhais tau tias txav mus dhau lub tes tsho yooj yim thauj tog rau nkoj lub siab.

Tsis nco qab Universal Fix

Cia peb tshem qee yam ua ntej. Classic wedge thauj tog rau nkoj los yog lub tes tsho thauj tog rau nkoj tsim rau pob zeb yog ib qho kev puas tsuaj tos tshwm sim hauv ntoo. Lawv cia siab rau kev nthuav tawm tawm tsam cov khoom tsis sib xws, tsis yog compressible. Ntoo compresses. Koj crank nws cia, lub tes tsho nthuav dav tsuas yog khawb rau hauv cov nplej, thiab dhau sijhawm, nrog kev vibration lossis load cycles, nws loosens. Kuv tau rub tawm cov pob zeb ua tsis tiav txaus los ntawm joists kom paub. Rau cov ntoo, koj xav tau ib lub ntsia liaj qhov rooj tsim los koom nrog cov fibers, tsis txhob tsoo lawv.

Qhov no yog qhov twg lag shields (lead anchors for wood) los yog poob hauv anchors tshwj xeeb ntsuas rau cov ntoo tuaj. Lawv softer. Piv txwv li, ib qho txhuas lag luam thaiv, nthuav dav ntau yam sib xws thiab ua raws li cov qauv ntoo ntawm tes, tsim kom muaj kev sib tw, tuav ntev dua. Kev teeb tsa yog qhov tseem ceeb: koj yuav tsum tau ua ntej tho qhov tseeb qhov loj me - tsis xoob, tsis nruj heev. Qhov spec ntawm lub thawv tsis yog ib qho kev pom zoo; nws yog qhov tshwm sim ntawm kev sim tiag tiag.

Kuv nco qab txog ib txoj hauj lwm dai ib qho hnyav, qub ntoo qhib mantle rau ntawm phab ntsa softwood stud. Siv lub tes tsho zinc txheej txheem thauj tog rau nkoj vim nws hnyav-ua haujlwm. Nyob rau hauv ib xyoos, lub mantle tau poob ib quarter nti. Lub thauj tog rau nkoj tsis tau rub tawm; nws tau yooj yim compacted ntoo fibers nyob ib ncig ntawm nws mus rau hauv hmoov av. Zaj kawm tau kawm txoj kev nyuaj: cov ntaub ntawv sib raug zoo trumps advertised zog.

Thaum Hla-Bolt yog tib lo lus teb

Rau ib qho loj overhead load lossis kev sib khi-down, qhov kev sib cav xaus. Qhov zoo tshaj plaws expansion rau hauv ntoo yog feem ntau tsis muaj expansion ntawm tag nrho cov. A dhau-bolt nrog ib tug loj washer thiab txiv ntseej nyob rau hauv lub backside yog huab tais. Nws siv cov ntoo tag nrho cov thickness hauv shear thiab muab lub zog clamping ntshiab. Ib qho khoom siv nthuav dav yog tsim nws lub zog tuav los ntawm kev ntxhov siab rau thaj chaw hauv cheeb tsam; ib tug hla-bolt kis tus load.

Xav txog lub lawj ledger board los yog treehouse support beam. Koj yuav pom cov lis dej num hais txog kev sib tw. Vim li cas? Kev ntseeg tau. Tsis muaj qhov tsis txaus ntseeg nyob hauv cov ntoo. Koj tuaj yeem pom lub tshuab ntxhua khaub ncaws tom, koj tuaj yeem torque lub txiv ntoo rau spec. Nrog rau kev nthuav dav thauj tog rau nkoj, koj tab tom twv txog qhov tshwm sim hauv lub qhov. Puas yog nws nthuav dav sib npaug? Puas yog ntoo tawg? Koj tsis paub txog thaum nws ua tsis tiav.

Qhov downside yog nkag. Koj yuav tsum tau mus rau tom qab ntawm lub workpiece. Kuv tau siv sij hawm rigging ntxiv-ntev spade me ntsis thiab hloov tau yooj yim lub qhov (socket) tsav bolt ib tug joist hanger nyob rau hauv ib tug nruj crawlspace vim nws yog txoj kev. Kev siv lub thauj tog rau nkoj nthuav dav yuav yooj yim dua, tab sis tsis yog. Qee zaum cov cuab yeej zoo tshaj plaws yuav tsum tau tawm hws ntau tshaj plaws.

Lub Lag Bolt & Shield Combo - Tus Ua Haujlwm

Rau feem ntau cov ntawv thov uas koj tab tom kho ib yam dab tsi rau cov kab ntoo tawv lossis phab ntsa ntoo tuab, qhov lag ntsia hlau thiab lag ntaub thaiv npog combo yog kev lag luam workhorse rau ib qho laj thawj. Nws yog ob feem system: ib tug threaded, feem ntau zinc-plated steel lag ntsia hlau thiab ib tug pre-ntxig txhuas los yog nylon ntaub thaiv npog. Cov ntsia hlau threads rau hauv daim ntaub thaiv, ua rau nws nthuav dav radially.

Kev zoo nkauj yog nyob rau hauv gradual kev koom tes. Tsis zoo li ib tug sudden wedge, threads muab koj tswj. Koj xav tias qhov nro tsim. Rau cov txiaj ntsig zoo ib yam, kuv ib txwm tuav lub lag luam ntsia hlau ob peb zaug dhau los tom qab khiav nws nrog tus tsav tsheb cuam tshuam. Nws cia koj xav tias stripping los yog cia li tawm los. Ib tus neeg muag khoom zoo tseem ceeb ntawm no. Cov xov paj thiab ntaub thaiv npog ductility yuav tsum tau sib phim. Kuv tau txais los ntawm cov chaw tsim khoom zoo li HANDAN ZITAI FREWER RAUG UA MOV., Ltd. rau tej yaam num ntau. Raws li nyob rau hauv Yongnian, Hebei - lub plawv ntawm Tuam Tshoj tus fastener ntau lawm - lawv to taub cov specs. Lawv cov nplooj ntawv khoom feem ntau piav qhia txog qhov loj me ntawm qhov sib txawv rau qhov sib txawv ntawm cov ntoo ntom ntom, uas yog cov ntaub ntawv siv tau uas koj xav tau (https://www.zitaifasteners.com).

Tsis txhob hla lub qhov pilot. Drilling ib qho me me dua li daim ntaub thaiv npog sab nraud kom ntseeg tau tias haum. Rau cov ntoo tawv zoo li maple lossis ntoo qhib, Kuv tseem yuav ua rau lub qhov pilot-qhov nqaim dua rau cov ntsia hlau lub hauv paus, qhov dav dua rau daim ntaub thaiv lub cev. Nws yog kev ua haujlwm ntxiv, tab sis nws tiv thaiv kev sib cais thiab lav tag nrho kev nthuav dav.

Cov Neeg Ua Si Tshwj Xeeb: Toggle Bolts & Epoxy

Qee lub sij hawm koj tab tom cuam tshuam nrog qhov chaw hollow lossis nyias, nkig ntoo. Ntawm no, kev nthuav dav hauv kev nkag siab classic yog tsis muaj txiaj ntsig. A tig bolt yog koj tus phooj ywg. Nws tsis yog ib qho kev nthuav dav rau ib qho, tab sis nws ua haujlwm zoo ib yam: tsim kom muaj kev ruaj ntseg tuav hauv qhov khoob. Lub caij nplooj ntoos hlav-loaded tis qhib tom qab cov khoom, faib cov load ntawm sab nraub qaum. Lub zog tuav yog qhov zoo tshaj plaws, tab sis nws yog txhua yam hais txog qhov chaw nyob sab nraub qaum. Siv lub qhov rooj loj, dav dav rau cov khoom hnyav hauv vaj huam sib luag lossis nyias plywood.

Tom qab ntawd muaj qhov kev xaiv nuclear: epoxy anchoring. Koj laum ib lub qhov, txhaj ob feem ntawm cov txheej txheem epoxy, thiab teem ib tug threaded pas nrig los yog rebar rau hauv nws. Cov epoxy bonds rau ob qho tib si ntoo fibers thiab cov hlau, tsim kom muaj kev sib txuas monolithic. Nws yog overkill rau 90% ntawm cov haujlwm ntoo, tab sis rau kev kho cov ntoo keeb kwm uas koj tsis tuaj yeem them taus los faib nws nrog kev nthuav dav, lossis rau kev teeb tsa lub ntsia liaj qhov rooj rau hauv qhov kawg nplej (uas muaj qhov txaus ntshai tuav lub zog rau cov khoom siv kho tshuab), nws yog unbeatable. Tus nqi thiab kev sib tsoo yog qhov tseem ceeb, thiab qhov sib xyaw ua ke yog qhov tseem ceeb.

Kuv siv epoxy anchors kom ruaj ntseg cov ntawv txhawb nqa tshiab rau xyoo pua-laus, ib nrab rotted sill beams nyob rau hauv lub tsev kho kom zoo nkauj. Mechanical bolts yuav cia li shredded lub suab ntoo seem. Lub epoxy sib sau ua ke cov fibers thiab muab peb lub pob zeb-khoom hauv paus. Nws yog ib qho kev daws teeb meem tshwj xeeb.

Yog li, Qhov Kev Txiav Txim Siab yog dab tsi?

Nws ntxhov siab, tab sis cov lus teb yog nws nyob ntawm. Pib los ntawm nug: Dab tsi yog cov ntoo thiab thickness? Dab tsi yog qhov load (shear, nro, vibration)? Kuv puas muaj kev nkag mus rau sab nraum qab? Koj tsob ntoo txiav txim siab ntws los ntawm qhov ntawd.

Rau cov khoom, tuab ntoo nyob rau hauv siab shear load: Dhau-bolt. Tsis hloov. Rau kev ua haujlwm hnyav hnyav rau cov khoom ntoo: Lag ntsia hlau thiab ntaub thaiv npog, ntsia nrog cov qhov pilot qhov. Rau hollow los yog nyias seem: Toggle bolts. Rau qhov tseem ceeb, rhiab, lossis cov ntoo tsis zoo: Xav txog epoxy.

Qhov zoo tshaj plaws expansion bolt rau ntoo tsis yog lub npe khoom. Nws yog lub hauv paus ntsiab lus ntawm kev sib piv cov fastener qhov kev txiav txim rau cov ntoo tus cwj pwm. Nws yog hais txog kev hwm tias ntoo yog cov khoom muaj sia nyob, cov khoom siv sib txawv, tsis yog cov substrate xwb. Tau txais qhov tseem ceeb ntawm txoj cai-pilot qhov, torque, xaiv cov khoom siv-thiab txawm tias tus nqi qis qis los ntawm qhov chaw muaj koob npe yuav ua tau zoo tshaj qhov zoo tshaj plaws thauj tog rau nkoj tsis zoo. Qhov ntawd yog qhov tsis tseeb tiag, ib qho koj tsuas yog kawm los ntawm rub tawm koj tus kheej qhov ua tsis tiav.