Tsis muaj qhov tsis ntseeg tias qhov kev ntseeg ntawm lub ru tsev yog ib qho ntawm nws cov yam ntxwv tseem ceeb. Nyob rau hauv lub plawv ntawm qhov tsim no yog truss bearing trusses. Lawv qhov kev teeb tsa tuaj yeem raug hu ua lub luag haujlwm thiab siv sijhawm ua haujlwm, uas suav nrog kev suav tseeb. Lub rafter system yuav tsum tiv taus qhov hnyav ntawm cov ntaub ntawv npog, rwb thaiv tsev, battens thiab nag lossis daus nyob rau hauv daim ntawv ntawm dej khov thiab daus. Muab tag nrho cov xwm txheej no, cov rafters yuav tsum tau muab lub zog siab tshaj plaws. Koj tuaj yeem ua rau lawv tus kheej, tab sis rau qhov no nws yog ib qho tseem ceeb uas yuav tsum tau coj mus rau hauv tus account lub cheeb tsam uas lub tsev tsim, nrog rau tag nrho nws cov nta, nrog rau cov cua thiab daus loads. Qhov no yuav tsum suav nrog seismicity ntawm thaj chaw tsev.
Tsim
Ntoo trusses yog sib sau los ntawm dai thiab inclined rafters, mauerlat, ridge khiav, struts, kab pheeb ces kaum thiab braces. Cov khoom sib txuas ua ke tsim ib lub truss truss, uas zoo li daim duab peb sab los yog ob peb daim duab peb sab txuas rau ib leeg. Qhov kev txhawb nqa ntawm lub ru tsev qauv yog lub rafter system, uas tseem hu uarafter ob txhais ceg. Lub kaum sab xis uas lawv tau teeb tsa sib haum rau lub kaum sab xis ntawm lub ru tsev.
Ua-nws-koj tus kheej ntoo trusses yog tsim los ntawm kev siv thev naus laus zis uas muab rau kev teeb tsa ntawm rafters ntawm Mauerlat nyob rau ntawm phab ntsa. Qhov no yog qhov yuav tsum tau rau kev faib khoom hnyav. Nyob rau hauv lub Upper ib feem, qhov kawg ntawm lub rafters thiab khiav yog kev cob cog rua, qhov kawg ntawm uas yog hu ua lub ridge beam. Hauv qhov no yog lub voj voog ntawm lub ru tsev. Qhov kev ncua deb ntawm cov rafters yuav tsum tau txiav txim siab los ntawm cov yam ntxwv ntawm cov khoom siv vov tsev, ntu ntawm cov rafters, thiab lwm yam. Qhov kev ntsuas no tuaj yeem sib txawv ntawm 0.8 txog 2 m.
Yuav ua li cas lwm yam koj yuav tsum paub txog truss design
Ntoo trusses, raws li tau hais los saum no, muaj ob txhais ceg rafter. Lawv yuav tsum nyob rau hauv parallel mus rau qhov chaw siab tshaj, lawv txoj hauj lwm yog kom tshem tawm cov deflection ntawm lub ru tsev qauv. Yog hais tias peb tham txog ib tug khiav, ces nws yog ua nyob rau hauv daim ntawv ntawm ib tug transverse beam, uas yog nyob rau longitudinally rau saum. Racks thiab txaj protrude los txhawb lub girders ntawm lub truss qauv. Lub Cheebtsam ntawm lub truss truss yog struts, nws yog ua tsaug rau lawv tias stability ntawm lub rafters yog guaranteed.
Kev txiav txim siab
Kev suav cov ntoo truss, ntawm chav kawm, yog qhov zoo tshaj plaws rau cov kws tshaj lij, hauv cov txheej txheem ntawm cov haujlwm no, cov khoom thauj uas hu ua mus tas li, nrog rau ib ntus thiab tshwj xeeb, yuav tsum tau coj mus rau hauv tus account. Thawj yog qhov hnyav ntawm cov khoom ntawm lub ru tsev pie. Qhov twgkev thauj khoom ib ntus yog huab cua los nag thiab qhov hnyav ntawm cov neeg tuaj yeem nce lub ru tsev los ua kev kho. Qhov no kuj tseem yuav suav nrog cua tshuab.
Cov khoom tshwj xeeb yog cov uas lub tsev raug rau hauv thaj chaw uas muaj kev phom sij ntau dua. Qhov tseem ceeb tshaj plaws yog kev suav ntawm cov daus daus, uas yog ua raws li cov qauv: S \u003d Sg x Μ, uas Sg yog qhov loj ntawm daus load ib square meter. Qhov no parameter yog conditional, thiab tus nqi yog txiav txim raws li lub rooj nyob ntawm seb cheeb tsam. Raws li tus nqi ntawm Μ, nws yog coefficient nyob ntawm lub kaum sab xis ntawm lub ru tsev. Txhawm rau txiav txim siab cua thauj khoom, koj yuav tsum paub tias thaj chaw twg lub tsev nyob, nws tuaj yeem qhib qhov chaw lossis kev loj hlob hauv nroog.
Kev tsim cov ntoo truss yog xam, kuj raws li tus qauv tus nqi ntawm cov cua thauj khoom hauv ib cheeb tsam. Qhov siab ntawm lub tsev yuav tsum tau coj mus rau hauv tus account. Tab sis txhawm rau txiav txim siab qhov kev ncua deb ntawm cov rafters, koj yuav tsum paub lawv cov ntu thiab qhov ntev. Yog hais tias tus ntoo khaub lig ntawm lub beam yog 8 x 10 cm, thiab qhov ntev ntawm lub rafters tsis tshaj 3 m, ces qhov kev ncua deb ntawm xws li cov ntsiab lus yuav tsum yog 120 cm. rafters yog mus txog 4 m, qhov kev ncua deb yuav yog 140 cm. Qhov siab tshaj plaws tus nqi yog seem, uas yog sib npaug zos rau 10x20 cm, thaum lub sij hawm ntev ntawm lub rafters yuav tsum tsis txhob ntau tshaj 6 m, qhov deb ntawm lawv yuav yog 140. cm
Raws li cov khoom seem ntawm lub vov tsev, lawv yuav tsum muaj cov ntu hauv qab no: Mauerlat - 15x15 lossis 10x15, kab pheeb ces kaumrafter ob txhais ceg - 10x20, puffs - 5x15, struts - 10x10, as well as runs with the last of the sections said.
Nws yog ib qho tseem ceeb kom paub txog ntu ntawm cov ntoo khaub lig thiab cov ntaub ntawv boards, thawj cov ntaub ntawv no tus nqi yuav yog 10x15, thaum nyob rau hauv lub thib ob nws yuav yog 2.5x10 cm. Yog hais tias koj nruab ntoo trusses, koj yuav tau yooj yim. xam tus naj npawb ntawm cov ntsiab lus uas yuav tsum tau, paub txog qhov hla ntawm cov rafters thiab qhov ntev. Nws tseem ceeb heev kom paub cov kauj ruam ntawm kev teeb tsa.
Kev tsim cov ru tsev russes
Thaum thawj theem, tus wizard yuav tsum tsim ib lub qauv raws li kev ua haujlwm ntxiv. Rafters muaj tib hom kev tsim, yog li tus qauv txuag lub sijhawm thiab kev siv zog. Ob lub boards raws ib ntug yuav tsum tau txuas nrog ib tug ntsia thawv, uas ua rau ib tug tsim uas zoo li txiab. Thaum ua-nws-koj tus kheej ntoo trusses yog tsim, cov npoo dawb ntawm cov txiab yuav tsum tau muab ntsia rau ntawm kev txhawb nqa ntawm cov ntsiab lus uas cov rafters tau muab tso rau. Qhov no yuav txiav txim siab seb txoj kab nqes ntawm lub ru tsev yuav muaj.
Ib khub ntawm tes ntxiv yuav tso cai rau koj kho lub ces kaum uas nyob nruab nrab ntawm cov laug cam. Nyob rau theem no, peb tuaj yeem xav tias tus qauv yog npaj txhij. Tsis tas li ntawd, koj tuaj yeem kho nws nrog kev pab los ntawm kev sib hloov crossbar. Txhawm rau kom ntseeg tau tias lub kaum sab xis tsis hloov pauv raws li kev cuam tshuam ntawm kev thauj khoom, tus ntoo khaub lig tuaj yeem kho nrog tus kheej tapping screws.
Txoj kev ua haujlwm
Yog tias koj txiav txim siab ua ntoo trusses, koj yuav tsum ceev faj thaum tsimtemplate, txawm tias nws muaj tsawg deviations, tag nrho cov qauv yuav squint. Nyob rau theem tom ntej, koj yuav tsum ua tus qauv tshiab rau kev npaj phom rau ntawm cov ntsiab lus ntawm qhov system. Hauv qhov no, koj yuav tsum tau ntim rau ntawm 0.5 cm plywood, rau kho koj yuav tsum siv lub rooj tsavxwm uas nws thickness yog 2.5 cm.
Zoo kawg
Cov grooves yuav tsum raug xaiv coj mus rau hauv tus lej ntawm cov rafters. Thaum cov ntoo trusses tau tsim, siv cov qauv npaj ua, koj tuaj yeem txiav thiab pib sib dhos lub truss.
