Kuv joist siv rau dab tsi?
Kuv joist siv rau dab tsi?

Video: Kuv joist siv rau dab tsi?

Video: Kuv joist siv rau dab tsi?
Video: Kuv puas zoo rau koj dab tsi 2024, Kaum ib hlis
Anonim

Ib tug engineered ntoo ntoo , feem ntau hu ua I- ntoo , yog ib yam khoom tsim los tshem tawm cov teeb meem uas tshwm sim nrog cov pa ntoo joists . Kuv- joists tau tsim los pab tshem tawm cov teeb meem ib txwm los nrog kev siv cov khoom ntoo li joists.

Yog li ntawd, dab tsi yog qhov txawv ntawm lub beam thiab joist?

A nqaj yog lub ntsiab load-bearing structural element ntawm lub ru tsev. Nws txhawb nqa qhov hnyav ntawm joists thiab lwm yam tsev. A ntoo yog tus tswv cuab kab rov tav uas feem ntau khiav hla ib lub tsev thiab tau txais kev txhawb nqa los ntawm a nqaj . Dab tsi yog qhov sib txawv ntawm lub beam thiab joist ?

Ib yam li ntawd, koj puas tuaj yeem siv kuv joist rau rafters? Qee tus tsim siv ua I- joists tsis yog xwb rau txhawb nqa pem teb, qab nthab, thiab lub ru tsev tiaj tus, tab sis kuj nyob rau hauv qhov chaw ntawm sawn-lumber cov rafters los yog ntoo truss rau txhawb pitched ru tsev. Daim duab qhia kuv- joists siv li cov rafters , thiab nailed rau ib tug ridgeboard ntawm laminated veneer lumber (LVL).

Tsis tas li ntawd, kuv puas muaj zog dua li ntoo?

Nrog rau kev sib koom ua ke (16 ntiv tes lossis 19.2 ntiv tes ntawm qhov chaw ntoo spacing), kuv- joists yog 50 feem pua stiffer tshaj khoom sawn ntoo . Hais txog lub zog, rau qhov yooj yim spans, ib qho I- ntoo series nrog tus nqi tsim qis tshaj plaws (PRI-20) tuaj yeem ncav cuag li ntawm ntiv tes muaj zog tshaj khoom sawn ntoo joist (S. Pine).

joist span txhais li cas?

Joist span hais txog qhov ntsuas uas tau them los ntawm tus ntoo nruab nrab ntawm kev txhawb nqa, xws li kab teeb lossis phab ntsa hauv paus. Cov neeg tsim khoom feem ntau siv cov rooj sib tham ua ntej los qhia lawv tsim nyog joist spans rau txhua hom ntoo, qhov loj me, thiab qhov sib txawv.

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