Ntev npaum li cas lub beam cantilever dhau los ntawm tus ncej?

2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17

Beams tso cai rau cantilever dhau los kawg ncej mus txog rau ib feem peb ntawm cov nqaj ncua nruab nrab ncej . Kuv nyiam siv qhov kev qhia no thaum sizing kab teeb . Feem ntau kuv ua tau txo qhov ncua ntawm ncej me ntsis los ntawm cantilevering nqaj.

Kuj paub, deb npaum li cas koj tuaj yeem cantilever ib nqaj?

Beam Cantilever Ib sab qab teb ntoo thuv (2) 2x12 beam tau ncua 8 ko taw thaum txhawb nqa joists hla qhov siab tshaj plaws ntawm 14 ko taw, thiab nws tau cantilever 2 ko taw dhau ntawm cov ncej ntawm txhua sab. Nrog rau qhov tso cai cantilever ntawm cov joists, qhov no beam yuav txhawb nqa lub lawj 12 ko taw los ntawm 17 1/2 ko taw.

Ib sab saum toj no, koj puas tuaj yeem cantilever ib lub lawj beam? American Wood Council's Wood Frame Construction Manual hais tias kab teeb tau feem ntau cantilever mus txog 1/4 lawv ncua dhau ib tus ncej. Cov qauv tsim no feem ntau txwv rau kab teeb txhawb nqa sib npaug joist lengths nyob rau hauv nws span raws li nyob rau hauv nws cov cantilevered seem.

Hais txog qhov no, koj tuaj yeem ua tau ntev npaum li cas ntawm 2x8 beam?

Yog cov code span tables pub a 2x8 ua mus span 12 feet, ces tus cantilever tuaj yeem ua 3ft.

Ntev npaum li cas koj tuaj yeem cantilever 2x6?

Saib ntawm lub rooj hauv qab no, peb pom tias 2x6 ib pem teb joists ua tau yuav tsum tau cantilevered mus txog 2 ko taw thiab 6 ntiv tes (2'-6 ") thaum cov joists yog spaced 16" sib nrug.