Video: Yuav ntev npaum li cas 4x12 beam span?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
| Joist Spans | ||
|---|---|---|
| Douglas Fir-Larch, Hem-Fir, Spruce-Pine-Fir, Redwood, Cedars, Ponderosa Pine, Pine liab | 4 X 10 | 5'-10" |
| 4x 12 | 6'-9" | |
| 3-2X6 | 4'-6" | |
| 3-2 X 8 | 5'-9" | |
Raws li txoj cai, qhov ntev npaum li cas tuaj yeem ncav cuag 4x12?
Obviously, qhov loj ntawm lub nqaj, qhov loj dua nyob deb nws tuaj yeem ncua nruab nrab ntawm cov ntawv. Redwood 4x6 beam yuav tsum ncua tsis pub ntau tshaj 6 'ntawm cov ntawv txhawb nqa.
Tsis tas li, ntoo loj npaum li cas tuaj yeem hla 20 ko taw? Max. Nyob Load 60 lbs/ft2 (2873 N/m2)
| Qhov siab tshaj plaws (ft - hauv) | ||
|---|---|---|
| Nominal Loj (nti) | Joist Spacing Center rau Center (inch) | Ntoo Qib |
| 2x12 ua | 24 | 13' - 2" |
| 2 x14 | 12 | 20' - 10" |
| 16 | 18' - 0" | |
Ua raws li qhov xav tau, qhov ntev npaum li cas tuaj yeem ncav cuag 6x10 beam?
Qhov xwm txheej thauj khoom yog 40 psf nyob thiab 10 psf tuag
| Yam tsawg kawg Beam Sizes - 40 psf Live, 10 psf Tuag Siab Kho H/fir #2 lossis zoo dua (pab pawg x Douglas Fir & S. Pine) | ||
|---|---|---|
| Joist Span | Qhov chaw nruab nrab ntawm Kev Tshaj Tawm hauv Taw | |
| 11 ft ib | 4x 6 x | 4x8 ua |
| 12ft ua | 4 x8x | 4x8 ua |
| 13ft ua | 6 x10 | 6 x10 |
Yuav ua li cas koj xam beam loj?
Cov qauv rau seem modulus yog nqaj dav lub sij hawm nqaj sib npaug sib npaug sib npaug los ntawm 6. Ob tus qauv 2-rau-6 nqaj muaj qhov tseeb qhov ntev ntawm 1.5-los-5.5 ntiv tes uas yuav muab ntu ntu ntawm 1.5 x 5.5 x 5.5 / 6 = 7.6 uas tsis txaus rau qhov piv txwv no. Ib 2-by-8 nqaj yuav txaus.
Pom zoo:
Yuav ntev npaum li cas 2x12 pem teb joist span?
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