Video: Ntev npaum li cas lub lawj cantilever?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Joist Cantilevers
Raws li cov lus tshiab span thiab IRC cov kev cai, cantilever tuaj yeem ncua mus txog ib feem plaub ntawm backspan ntawm lub joist. Qhov no txhais tau hais tias joists, xws li yav qab teb ntoo thuv 2x10s ntawm 16 ntiv tes nyob rau hauv nruab nrab, spanning 12 ko taw tau tso cai rau cantilever mus txog 3 ko taw ntxiv (saib daim duab, hauv qab).
Ntxiv mus, koj tuaj yeem cantilever 2x8 joist tau deb npaum li cas?
Yog txoj cai ncua cov ntxhuav tso cai rau a 2 x8x mus span 12 feet, ces tus cantilever tau ua 3fti.
deb npaum li cas cov laug cam tuaj yeem hla tau? Cia kom txaus Overhang ntawm Decking Ib mus rau ob nti overhang dhau ntawm sab nrauv pawg thawj coj saib yog txaus. Qhov no txhais tau tias cov ntsia cov laug cam yuav tsum muaj yam tsawg 1.75 txog 2.75 overhang ua ntej lub fascia yog ntsia.
Ntxiv mus, koj tuaj yeem cantilever 2x6 deb npaum li cas?
Saib ntawm lub rooj hauv qab no, peb saib ntawd 2x6 ua pem teb joists tau yuav tsum tau cantilevered txog 2 ko taw thiab 6 ntiv tes (2'-6 ") thaum cov hlua txuas sib nrug 16" sib nrug.
Ntev npaum li cas koj tuaj yeem cantilever pem teb truss?
Ntau lub tsev haujlwm txwv ntoo cantilevers rau 24 max. Koj yuav tsum siv tsawg kawg tsib tus thav duab thav duab los txuas rau ntawm ntug ntoo mus rau qhov kawg ntawm koj cov joists. American Wood Council hais tias cantilevers raug txwv rau 1/4 qhov ncua ntawm cov joists.
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