Indlela yokukhetha umkhiqizo wethreyi yekhebula lohlobo lomkhombe

Indlela yokukhetha umkhiqizo wethreyi yekhebula lohlobo lomkhombe

Uhlobo lomkhombeikhebulaithileyi esetshenziswa endaweni egqwalayo, kufanele yenziwe kusetshenziswa izinto eziqinile ezimelana nokugqwala, noma ithathe ukwelashwa okuqeda ukugqwala, ukwelashwa okuqeda ukugqwala kufanele kuhlangabezane nezidingo zemvelo yobunjiniyela kanye nokuqina.Esigabeni esinezidingo zomlilo,iladi lekhebulaithileyifuthiifreyimu ingafakwa ngebhodi elingavimbeli umlilo noma elivimbela ilangabi, inetha nezinye izinto zokwakha isakhiwo esivaliwe noma esivalwe kancane.Futhi thatha izinyathelo ezifana nokudweba ukunamathela okungashisi phezu kobusoumkhombe wekhebulafuthi yayoithreyi lekhebulaukusekelaisiphanyeko(ukwesekwa kophahla,sukuxhaswa kwe-uspensiont,ubakaki we-cantilever,ubakaki odongenit,ubakaki baset), ukumelana kwayo nomlilo kukonke kufanele kuhlangabezane nezimfuneko zenkambiso noma izindinganiso kazwelonke ezifanele.Ezindaweni ezinezidingo eziphakeme zokuvikela umlilo, akufanele zisebenzise.ikhebula le-aluminiumamathreyi(ithreyi yekhebula ye-aluminium alloy).Ukukhethwa kobubanzi nokuphakama kufanele kuhlangabezane nezidingo zezinga lokugcwalisa, izinga lokugcwalisa ngaphakathi kweladder ithreyi lekhebulafuthiumkhombe wekhebulakweikhebulangenjwayelo.Izintambo zamandlakungaba 40% kuya ku-50%,ukulawula izintambokungaba ngu-50% kuya ku-70%, futhi kufanelekile ukubekela eceleni u-10% kuya ku-25% wemaliji yokuthuthukiswa konjiniyela.Lapho ukhetha izinga lomthwalo wekhebulaamathileyi, isilinganiso sokusebenza somthwalo wekhebulaithileyiakumele ibe mkhulu kunomthwalo olinganiselwe olinganiselwe wezinga elikhethiwe lomthwalo wekhebulaukubamba, uma isikhathi sangempela se-isiphanyeko sokusekelayekhebulaithileyiayilingani no-2m, khona-ke umthwalo omaphakathi osebenzayo kufanele uhlangabezane nezidingo.Izingxenye ezihlukahlukeneorukufakwa kwethreyi lekhebula,isiteshi se-strut nama-hangers asekelayo(i-unitrust,c isiteshi, isiteshi u, isiteshi strut)kufanele ihambisane nesigaba esiqondile kanye nochungechunge lokugoba lweindawo yokubeka ikhebulafuthiama-ladder racksngaphansi kombandela wokuthi umthwalo ohambisanayo waneliswa.Ekukhetheni ikhebulaithileyigoba nomaelingaphakathi isikhuphukeli, isikhuphukeli sangaphandle,idivayisi yokuholela phansi, akufanele ibe ngaphansi kwekhebulaugqoko (gl ithreyi lekhebula, ithreyi lekhebula le-hdg, ithreyi yekhebula enezikhala,ithreyi lekhebula elinezimbobo, ithreyi lekhebula elingena umoya)ngaphakathi kwekhebula elincane kakhulu elivumeleke ukugoba irediyasi.Nge-span enkulu kune-6m yensimbiukunqanda ikhebulafuthi ububanzi bungaphezu kuka-2m noma izidingo zokuthwala umthwalo ezinkulu kuneleveli yomthwalo Dikhebula le-aluminiumtrunking, kufanele ihambisane nezimo zobunjiniyela zamandla, ukuqina kanye nokuzinza kwesibalo noma ukuqinisekiswa kokuhlolwa.Amaqembu amaningana ekhebulaithileyis ebekwe ngokuhambisana ekuphakameni okufanayo, amathreyi ekhebula aseduze kufanele acatshangelwe phakathi kokugcinwa, ibanga lokulungisa.