Txhim kho 12. Lub tsev txhawb nqa: ntau lawm, hnyav, nqi

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Kev siv zog ntxiv yog cov khoom siv hlau uas muaj daim ntawv ntawm tus pas nrig ntev nrog lub voj voog hla. Lub hom phiaj tseem ceeb ntawm hom dov hlau no yog los txhim kho qhov zoo ntawm cov pob zeb ua vaj tse. Muaj ntau ntau hom fittings, txhua tus yog tsim los ntawm nruj raws li GOST tus qauv.

Destination

Qhob yog ib qho khoom siv compressive heev. Cov qauv nchuav los ntawm nws muaj peev xwm tiv taus qhov hnyav hnyav kiag li yam tsis muaj kev phom sij rau lawv tus kheej. Txawm li cas los xij, hmoov tsis, cov khoom no yog qhov tsis yooj yim hauv kev nro, ib yam li nws yog nyob rau hauv dabtsi yog khoov. Vim yog qhov tshwj xeeb ntawm cov pob zeb no, muaj ntau yam teeb meem tuaj yeem tshwm sim thaum lub sij hawm tsim cov tsev thiab cov qauv: tawg ntawm lub hauv paus thiab cov phab ntsa vim yog lub zog ntawm lub caij nplooj ntoos hlav heaving, kev puas tsuaj ntawm cov plag tsev vim siab heev load ntsug, thiab lwm yam tensile. Lub zog ntawm pob zeb tsuas yog 10-15% compressive zog.

Qhov teeb meem no yog tsim los daws cov khoom siv hlau. Lub thermal expansion coefficient ntawm steel yog ze rau ntawm cov pob zeb. Qhov no ua rau nws muaj peev xwm siv cov ntaub ntawv hauv lub complex. Qhov nrov tshaj plaws hauv kev tsim kho qis yog kev txhawb nqa 12 hli inch. Cov vaj tse pob zeb muaj zog ntxiv nrog cov thav ntawv khi los ntawm nws yog qhov muaj zog compressive siab thiab tib lub sijhawm siv tau lub zog tensile.

Thaum lub hauv paus tsim, uas suav rau lub ntsiab load thaum lub caij nplooj ntoos hlav heaving, kev siv qhov cuab lub zog yog qhov yuav tsum tau ua. Feem ntau hom dov hlau no kuj tseem siv rau hauv kev tsim kho ntawm phab ntsa (lub zog masonry, sab sauv stiffening siv). Kev txhawb zog nyob rau hauv daim phiaj yog siv thaum pouring pem teb thiab screeds. Nws kuj yog siv rau hauv kev tsim cov kev ua vaj tse, qhov muag tsis pom kev, thiab lwm yam. Nyob rau hauv kev tsim kho ntawm ntau-storey vaj tse, nrog rau cov tsev ntawm cov av muaj teeb meem, kev txhawb zog ntawm 16 hli thiab thicker yog siv ntau dua.

Nrog rau lwm yam, hom dov hlau no kuj txhim kho qhov taw qhia xws li lub zog qaug zog ntawm cov pob zeb, nrog rau kev ua haujlwm ntawm cov qauv rau kev ntxhov siab los ntawm sab nraud.

khoom tsim khoom

Vim qhov kev txhawb nqa yog ib qho tseem ceeb heev ntawm cov cuab yeej ua vaj tse, tshwj xeeb yuav tsum tau ua rau nws qhov zoo. Cov khoom siv raw rau kev tsim cov dov hlau ntawm hom no yog tshwj xeeb reinforcing steel. Txhawm rau txhim kho cov khoom siv kho tshuab, nws yog alloyed nrog manganese thiab silicon. Kev kho titanium thiab chromium yog ua los muab lub zog tshwj xeeb ntxiv.

Ntau yam los ntawm kab

Txhim kho cov thicknesses sib txawv tuaj yeem siv hauv kev tsim kho. Hauv qhov no, muaj qee cov qauv tsim los ntawmSNiP cov qauv. Yog li, piv txwv li, rau lub hauv paus ntawm cov tsev uas muaj lub teeb thav duab-vaj huam sib luag phab ntsa txhim kho ntawm cov av ruaj khov, tuav nrog txoj kab uas hla ntawm 10 hli tuaj yeem siv tau. Hauv kev tsim kho vaj tse ntiag tug ntawm yuav luag txhua hom, raws li twb tau hais lawm, 12 hli qhov cuab lub zog yog siv.

Type by manufacturing method

Kev siv zog ntxiv 12 hli (steel), nrog rau cov pas nrig ntawm lwm qhov tuab, yog ua raws li ob lub thev naus laus zis:

• Raws kub dov hlau. Cov khoom no hu ua pas nrig.
• Los ntawm kos duab txias. Qhov no yog hu ua hlau saib.

Kev tsim khoom ntawm 12 hli rebar tsis yog qhov nyuaj, tab sis nws yuav tsum tau siv cov cuab yeej tshwj xeeb thiab ua raws li txhua yam uas yuav tsum tau ua.

Tiav thav duab thiab meshes yog tsim nyob rau hauv cov chaw tsim khoom tshwj xeeb. Cov txheej txheem rau lawv tsim muaj xws li cov kauj ruam hauv qab no:

• Yog tias cov khoom siv tau muab rau hauv reels, unwinding yog ua.
• Txhim kho cov hlau lossis cov tuav tau ua tiav.
• Lub rebar yog txiav rau hauv daim ntawm qhov ntev yuav tsum tau. Qhov no thiab kev ua haujlwm dhau los yog ua rau ntawm cov tshuab ncaj nraim.
• Ua raws li kev sib dhos ntawm cov khoom ntawm cov ncej lossis kab sib chaws. Qhov kev ua haujlwm no yog ua los ntawm cov tshuab vuam tshwj xeeb. Qee qhov xwm txheej, cov ntsiab lus txuas nrog los ntawm phau ntawv vuam.

Qee zaum kev txhawb nqa tawb thiab meshes kuj tau ua raws li kev tsim kho vaj tse (feem ntau qis-nce). ATNyob rau hauv cov ntaub ntawv no, tus qauv yuav welded los yog wired. Thawj txoj kev yog tsawg zog ua haujlwm. Thaum siv qhov thib ob, tau txais cov ncej ruaj khov dua. Qhov tseeb yog tias nyob rau hauv qhov chaw ntawm vuam, hlau tom qab xeb sai dua.

Ntog hom

Rau lub hauv paus no, tsuas yog ob hom kev txhawb nqa 12 hli nkaus xwb:

• Smooth, uas yog cov pas nrig lossis cov hlau puag ncig.
• Corrugated. Nyob rau saum npoo ntawm qhov kev txhawb nqa no muaj cov kab rov tav (feem ntau yog mob-zoo li tus) thiab longitudinal tav. Qhov kev tsim no tuaj yeem ua rau muaj qhov adhesion ntawm cov ncej rau pob zeb.

Type los ntawm kev ua haujlwm

Cov hom kev txhawb nqa hauv qab no feem ntau siv rau hauv cov ncej:

• kev faib khoom;
• ua haujlwm (qhov tseeb tuav 12 hli);
• montage;
• clamps.

Raws li kev ua haujlwm, 12 hli kev txhawb nqa tau muab faib ua:

• Tuag. Nws yog siv thaum xav tau lub zog tshwj xeeb ntawm cov pob zeb ua vaj tse (hauv thaj chaw seismic, hauv cov plag tsev ntawm cov tsev siab, hauv qhov chaw ntawm cov choj raug rau kev thauj khoom ntsug, thiab lwm yam).
• Nyob zoo. Fits tsis muaj pretension. Siv nyob rau hauv cov qauv ua vaj huam sib luag.

Rebar hnyav 12mm

Thaum txhim kho cov tsev ntiav me me, cov hlau uas yuav tsum tau muaj feem ntau suav nrog hauv cov ntsuas ntsuas. Cov neeg tsim khoom feem ntau muag rebar los ntawm qhov hnyav. Qhov no yuav ua rau qee qhov teeb meem hauv kev suav. Yuav kom nrhiav tau pes tsawg kilogramskev txhawb nqa yog tsim nyog nyob rau hauv ib rooj plaub los yog lwm qhov, qhov hnyav ntawm lub meter khiav yuav tsum tau muab faib ua qhov ntev ntawm cov khoom siv. Thawj qhov ntsuas yog nyob ntawm hom kev txhawb nqa thiab txiav txim siab raws li cov lus tshwj xeeb.

Yog li, qhov hnyav ntawm 12 hli rebar (ua raws li GOST) yog 0.89 kg / linear meter. Piv txwv li, rau kev tsim lub tsev, 25 m ntawm dov hlau yog xav tau. Yog li ntawd, koj yuav tsum yuav 25 x 0.89=22.25 kg bars.

Smooth dov hlau 12 hli yog cim nrog tsab ntawv A1, corrugated yam tsis muaj perforation - A3. Tsis tas li ntawd, los ntawm kev kos npe, koj tuaj yeem pom cov txheej txheem ntawm kev tsim cov khoom siv ntxiv (A - kub dov, B - txias ua) thiab qib steel siv (tus lej). Cov khoom tuaj yeem muab nkag rau hauv coils lossis tuav. Piv txwv li, lub npe ntawm kev txhawb zog "A3-A500C" yog deciphered raws li nram no:

• khoom muaj corrugated nto (A3),
• ua los ntawm kub dov (A),
• qib steel - 3PS (A500C)

Tus nqi ntawm cov hlau dov ntawm hom no feem ntau nyob ntawm nws qhov tuab, nrog rau ntawm hom. Rebar 12 tus nqi ntau npaum li cas? Tus nqi rau rods ntawm txoj kab uas hla - kub dov (qhov nrov tshaj plaws ntau yam) - txawv ntawm lwm tus neeg nyob rau hauv thaj tsam ntawm 22-29 txhiab rubles ib tuj. Tau kawg, thaum yuav, koj yuav tsum nug tus neeg muag khoom rau daim ntawv pov thawj ntawm kev ua raws li GOST. Cov cim ntawm cov fittings feem ntau yog affixed twb thaum lub sij hawm xauj. Yog tias qhov no tsis tau ua tiav thaum lub sijhawm tsim cov pas nrig thiab cov pas nrig, lawv qhov kawg yog cim nrog cov xim tsis tuaj yeem. Yog li, piv txwv li,steel A500C yog cim dawb thiab xiav, A600C - daj thiab dawb, thiab lwm yam

Yog li, rebar - ib qho ntawm cov nyiam tshaj plaws ntawm cov dov hlau nyob rau hauv kev ua lag luam - tuaj yeem tsim ntau txoj hauv kev los ntawm ntau qib steel, muaj qhov du lossis corrugated nto, tuab lossis nyias. Rods ntawm 12 hli yog cov hom nrov tshaj plaws. Thaum yuav lawv, ib yam li thaum yuav lwm yam fittings, koj yuav tsum ua ntej ntawm tag nrho cov them mloog mus rau lub cim thiab hom nto.