Yuav ua li cas rau suav tus xov tooj ntawm cov laug cam nyob rau hauv ib lub voos xwmfab?

Ua ntej cov tswv yim rau cov lus teb ntawm lub nyhav peev xwm ntawm ntau hom ntawm cov laug cam, thiab teb cov lus nug: "Yuav ua li cas muaj ntau yam boards nyob rau hauv lub thawv muaj rau sab" - yuav tsum xav txog dab tsi yog meant ntawm lub sij hawm "cubic Meter ntawm lumber," thiab hais tias muaj kev tsim kho kev ua lag luam.

Lumber hom thiab lawv ntau thiab tsawg pab

Cam yog ua los ntawm longitudinal sawing cav. Yog lub neej ntawd lawv yog los ntawm 4 mus rau 6 meters nyob rau hauv ntev. Lub dav sib txawv. Lub thinnest yuav mus rau cov chav kawm ntawv ntawm hauv ob sab phlu - ntawm ob thiab ib tug ib nrab centimeters, ua raws li shalevka-board uas nws thickness yog tshuam sib npaug zos rau ob centimeters (tab sis tshwm sim thiab 2.5, thiab 4 thiab 5 cm). Ntau kim - Edged siv board, nws qhov ntev muaj qauv txaus dav yog ib txwm ntau tshaj nws ob npaug rau-qhov siab, thiab ntev ntawm 4 (tsis tshua 4.5) thiab 6 meters. Thicker boards yog hu ua nqaj. Rau qhov yooj yim ntawm sawn ntoo muag cubes, thiab rau lub tsev yog ib qho tseem ceeb kom paub tias yuav ua li cas muaj ntau yam boards nyob rau hauv 1 lub voos xwmfab.

Battens yuav tsis muab suav hais tias, qhov tseeb vim hais tias qhov no hom ntawm lumber siv mas rau xov hauj lwm thiab yog xam nyias.

Ua ntej ntawm tag nrho cov, nyob rau kev tsim kho ntawm qhov chaw yuav tsum tau board-shalevka, uas yog ob peb lub sij hawm cheaper txiav thiab xav tau rau formwork ntaus ntawv phau ntawv ru tsev battens, pab kiag li lawm ntxhib plag tsev, siv ntawm ancillary chaw.

Lub dav ntawm xws boards yuav ua tau 10-15 cm nyob rau hauv ntev, lawv yog txiav mus rau hauv ib tug txheej txheem ob los sis peb-meter. Paub ntawm lub perimeter ntawm lub neej yav tom ntej ntawm lub hauv paus thiab tsis shalevki yooj yim xam ntau npaum li cas cov laug cam nyob rau hauv lub thawv muaj rau sab thiab yuav ua li cas muaj ntau yam cubic meters koj yuav tau mus yuav nyob rau hauv formwork. Yog xav paub ntxiv muaj tseeb suav, koj muaj peev xwm siv online cov cav laij leb uas yog rau ntawm qhov chaw ntawm feem ntau ntawm cov sellers ntawm lumber.

Yog vim li cas xav txog nyhav ntsiab lus?

Yog hais tias txoj cai teb cov nqe lus nug: "Yuav ua li cas muaj ntau yam boards nyob rau hauv lub thawv muaj rau sab" - cov kev xaiv yuav tsum yog ib - cubic Meter. Peb kuj xav tau ntau txog cov ntaub ntawv. Piv txwv li, yuav ua li cas npaum li cas cheeb tsam yuav clad nrog ib lub voos xwmfab ntawm ib tug tej tuab ntawm lumber?

Conventionally txhais lub dav ntawm lub Rooj Tswjhwm Saib - W, thickness - T, ntev - D. Cov tshwm sim yuav nyob ntawm seb lub thickness (T). Square mis (II) yog lub npe hu los ntawm lub tsev kawm ntawv:

• P (m ²⁾ = wxl / T (1 m x 1 m / 0,02 m 50 m = ^2).

Uas yog, yog hais tias peb coj ib tug cubic Meter ntawm lub rooj tsavxwm thickness ntawm 2 cm, lawv yuav pw 50 m ^2.

Tej zaum koj yuav tsum paub tag nrho ntev (L) ntawm tsob ntoo nyob rau hauv 1 m ^3.

Peb xav txog cov nram mis:

• D = 1 m ³ / x T S.

Thaum kawg, cov lus teb rau lo lus nug: "Yuav ua li cas ntau daim ntawm cov board nyob rau hauv lub thawv muaj rau sab (.. Tuav, puag ncig billets, etc.)." Yog hais tias koj paub qhov tsis muaj lub cav ntoo, qhov tshwm sim muaj peev xwm muab tau los ntawm ua ntawv thov cov formula:

• K = W x T x D.

Raws li txoj ntsiab cai no thiab xam nyhav ntsiab lus ntawm ib tug board, tab sis tsis txhob hnov qab mus rau cov hloov tag nrho qhov ntev nyob rau hauv meters.

Piv txwv ntawm xam tagnrho Eaves

Cov feem nrov board edging, uas yog siv rau cov phab ntsa hauv lub ntaus ntawv, plag tsev, ceilings, cov phab ntsa, rafters thiab stairs. Txhua loj muaj txawm nws "lub npe": dyuymovka, sorokovke, tsib, bar (tam sim ntawd ntshiab, nws yog hais txog lub dav ntawm lub Rooj Tswjhwm Saib).

Xam, piv txwv li, yuav ua li cas muaj ntau yam boards nyob rau hauv lub thawv muaj rau sab yuav dyuymovka paub nws dav. Yog li, thaum lub dav ntawm 10 cm - yog 66 daim, thiab ib tug dav ntawm 15 cm - 44 daim. Ib tug cubic Meter txaus los npog 40 m ^2.

Muab xam los Piv txwv li cubing dyuymovka ib tug rau 'meter' dav ntawm 15 cm:

• 0.15 m x 0,025 m x 6 m = 0,0225 m ^3.

Yog hais tias tsim nyog los xam qhov ntim ntawm, piv txwv li, lub floorboards (spiked) nyob rau hauv cov mis yog pawg tsuas ua hauj lwm dav ntawm lub Rooj Tswjhwm Saib (tsis NQHAJ). Yog hais tias xam blockhouse (board, simulating ib lub cav), lub thickness yog qhia los ntawm lub siab tshaj plaws taw tes.