Hlau purlin yog cov khoom siv ntawm lub tsev nyob rau hauv daim ntawv ntawm kab rov tav kab. Nws tso siab rau txhua kab, lwm yam khoom thiab kab teeb los txhawb lub ru tsev ntawm lub tsev. Nws yog ib qho tseem ceeb ntawm cov qauv load-bearing raws li nws txhawb nqa lub ru tsev npog thiab pab thauj tog rau nkoj rau ntawm tus ncej.
khoom nta
Hlau girder, nyob ntawm seb hom, tuaj yeem ua tau yam khoom lossis hom lattice. Qhov kev xaiv thib ob yog siv ntau zaus vim nws pheej yig dua thiab txhim kho sai dua. Raws li rau kev tsim ntawm lub ru tsev ru tsev, ntau lub ntsiab lus sawv ntawm no. Qhov no yog ib tug ridge khiav, sab qhov chaw thiab lub hwj chim phaj. Cov hom hlau purlins no tuaj yeem pom nyob hauv yuav luag txhua lub ru tsev.
Lub ridge purlin yog kev txhawb nqa rau saum lub ru tsev, cov ntsiab lus sab pab tsim kev tiv thaiv rau sab sib txawv ntawm lub ru tsev. Mauerlat nyob ze ntawm lub hauv paus ntawm cov rafters, thiab nws txoj haujlwm yog nteg ib ncig ntawm phab ntsa sab nrauv.
Metal Purlin txiaj ntsig
yam zoo xws li lub zog siab sawv tawm. Yog tias peb sib piv cov khoom ua los ntawm cov ntoo, pob zeb thiab cov hlau, tom qab ntawd cov tom kawg yuav muaj zog thiab ruaj khov dua li lwm tus. Cov hlau tsis xav tau kev kho mob ntxiv nrog cov tshuaj tiv thaiv, nws tsis ntshai ntawm ya raws lossis kev siv tshuab siab.
Ntxiv rau, cov hlau purlins tuaj yeem siv rau txhua hom txheej, raws li lawv yog thoob ntiaj teb hauv cov ntsiab lus ntawm fastening. Txhawm rau txhim kho kev tiv thaiv ntawm cov hlau, cov tshuaj tiv thaiv corrosion uas tiv thaiv xeb tuaj yeem siv tau.
Vim nws qhov loj me, lub ntsiab lus nthuav tawm kev ua siab ntev, uas ua rau nws ntxim nyiam hauv khw muag khoom. Cov hlau purlins tuaj yeem siv rau cov tsev nrog txhua yam ntawm lub hauv paus, vim tias lawv tsis tsim kom muaj qhov hnyav, tab sis tib lub sijhawm muab lub zog xav tau.
Kev nrawm ntawm kev teeb tsa kuj yog ib qho zoo ntawm cov khoom siv hlau. Hlau ru tsev purlins tuaj yeem ntsia tau rau hauv ib qho teeb meem ntawm ib teev, thiab lawv yooj yim kho rau txhua qhov chaw. Qhov tseem ceeb ntawm no yog xaiv cov fasteners txhim khu kev qha uas tuaj yeem tiv taus qhov hnyav ntau.
Nyob ntawm qhov
Kev khiav haujlwm yog suav tias yog muaj zog thiab txhim khu kev qha, zoo heev ntawm kev siv thiab ruaj khov. Ib qho channel lossis I-beam tuaj yeem siv rau nws. Cov khoom nyob rau hauv cov nqe lus ntawm kev ua hauj lwm kuj yog heev yooj yim. Nws yog ib qho tsim nyog los txiav nws mus rau hauv daim ntawm qhov ntev thiab npog nrog kev sib xyaw ntawm corrosion thiab xeb corrosion.
Tom ntej hauv qhov chaw raugcov cim yog tsim thiab qhov rau mounting yog drilled. Qhov no yog qhov kev xaiv ruaj khov tshaj plaws rau kev kho thiab tsim cov kab hlau ru tsev.
Cov ntsiab lus nkhaus yog qhov kev xaiv niaj hnub. Lawv muaj cov duab tshwj xeeb, uas yooj yim rau kev teeb tsa. Rau kev tsim khoom ntawm qhov chaw, galvanized profile yog siv, uas dhau los ntawm cov txheej txheem ntawm kev tsim cov tshuab tshwj xeeb. Lub versatility ntawm qhov tshwm sim yog tias nws tuaj yeem siv tau ob qho tib si ua ib qho profile thiab ua tus ntoo khaub lig.
Qhov hnyav ntawm kev khiav yog me me, nws tuaj yeem ntsia ntawm nws tus kheej thiab tsis muaj kev pab. Fastening ntsiab nrog ntxiv clamps yog tsim los ntawm ib tug galvanized profile. Lawv siv tau yooj yim rau kev ua haujlwm thiab ua kom nws nrawm dua.
Lub purlin kuj nrov. Nws yog welded los ntawm ib tug profile yeeb nkab los yog ib tug tshwj xeeb ces kaum. Txhawm rau txuas ob lub crossbars, nruj jumpers thiab braces yog siv, uas ntxiv lub zog rau cov qauv thiab ua kom nws muaj kev ntseeg siab. Txawm tias muaj qhov hnyav me me, muaj lub zog muaj zog tuaj yeem tau.
hom kev sib txuas
Txhim kho cov corrugated board rau hlau girders tuaj yeem ua tiav siv cov kev xaiv sib txawv, xws li cov ntsia hlau zoo tib yam rau cov rivets tshwj xeeb.
Raws li kev yooj yim, cov kws tsim khoom tseem ceeb rau tus kheej tapping screws thiab rivets. Thawj qhov kev xaiv tsis tas yuav tsum muaj qhov tsim ntawm qhov; thiab, yog tias tsim nyog, tus kheej tapping ntsia hlau tuaj yeem raug tshem tawm rov qab thiab txuas rau lwm qhov chaw. Tsis muaj cov cuab yeej tshwj xeeb xav tau rau txoj haujlwm.
Rau rivets, nws yog ib qho tsim nyog los npaj qhov chaw, tau ua yav tas losqhov. Rau qhov tseeb ntawm kev thov cov qhov, koj yuav tsum tau txuas ib daim ntawv profiled rau lawv txhawm rau ua kom cov cim tsim nyog. Nws yog teeb meem los tshem tawm rivets thiab qhov loj thiab txawm tias kev puas tsuaj rau daim ntawv profiled yuav tshwm sim hauv cov txheej txheem. Rivets tsis tuaj yeem rov siv dua, tsis zoo li tus kheej tapping screws. Yog li ntawd, fastening daim ntawv profiled rau hlau girders yog qhov zoo tshaj plaws uas siv tus kheej tapping screws.
Nyob zoo ib tsoom niam txiv kwv tij neej tsas sawv daws
Cov khoom no nyob ntawm ntau yam. Ua ntej, los ntawm kev kho cov ntawv profiled ntawm qhov chaw. Qhov no tuaj yeem ua tau ob qho tib si vertically thiab horizontally. Nyob rau ntawm ntug qis thiab sab sauv, fastening yog ua tiav ntawm txhua yoj, nyob rau lwm qhov chaw - los ntawm nthwv dej, nws nyob ntawm qhov chaw thov.
Thib ob, yog tias kev teeb tsa ua tiav rau lub laj kab, tom qab ntawd thawj qhov kev kho yuav tsum tau ua tiav 8-10 cm ntawm hauv av. Thib peb, nyob rau hauv tus txheej txheem ntawm kev txuas corrugated board rau hlau girders, chips yuav tsum tau muab tshem tawm ntawm qhov chaw, uas yuav ua rau corrosion thiab puas ntawm cov hlau.
Cov Lus Qhia Tus Kheej
Ua ntej pib ua haujlwm, ua cov cim rau ntawm qhov chaw yog tias rivets yuav siv rau fastening. Qhov no yuav pab kom tsis txhob ua yuam kev thaum lub sijhawm teeb tsa thiab ua qhov hauv qhov chaw raug.
Nws yog ib qho tsim nyog los saib xyuas kev khiav thiab, yog tias tsim nyog, npog cov hlau nrog kev tiv thaiv sib xyaw. Kev siv cov hlau purlins rau vov tsev yuav tsum tau siv ob peb txheej ntawm cov khoom tiv thaiv kom lub corrosion theem tsis pib. Masters qhia siv kev khiav mus tas li rau lub hauv paus, uas muaj ntau dua endurance thiabdurability.
