Ntauwd thiab mast
Txhais: Ntauwd thiab mast:
Hauv cov ntsiab lus engineering, tus pej thuam yog tus qauv txhawb nqa tus kheej, thaum lub mast yog txhawb nqa los ntawm tus ncej lossis ncej.
Cov ntsiab lus" Tower" thiab" mast" feem ntau siv rau tib hom qauv, uas tau kawg ua rau tsis meej pem. Ntauwd thiab masts muaj ntau lub ntsiab lus hauv Asmeskas Askiv thiab Askiv Askiv. Hauv Asmeskas Lus Askiv, ob hom qauv no feem ntau hu ua yees, thaum nyob hauv Askiv Askiv, tib neeg ib txwm siv cov masts hloov.
Txhawm rau zam qhov tsis meej pem no, peb siv engineering yam hauv chav tsev no:
Ntauwd=tus kheej txhawb nqa
Mast=Txhawb los ntawm kev pab lossis cov neeg ua si.
Hom towers thiab masts:
Tshooj lus no qhia txog peb hom ntauwd / mast siv hauv kev sib txuas lus wireless niaj hnub no; kev txhawb nqa tus kheej yees, monopoles, thiab guyed masts.
Ib tug ncej ntauwd:
Lub monopole yog ib tug hollow tapered pas nrig ua los ntawm galvanized steel. Lawv muaj cov zawv zawg welded kav uas tuaj yeem ncav cuag 200 feet (60m) hauv qhov siab. Vim lawv cov qauv, lawv kim heev los tsim tab sis yooj yim rau nruab.
Monopoles feem ntau yog siv nyob rau hauv nroog ib puag ncig, thiab cov pej thuam hauv paus npog thaj tsam 2 thiab qhov chaw muaj tsawg. Qhov siab tshaj plaws hneev taw ntawm 200-foot monopole kav hlau txais xov yog kwv yees li 6x6 ko taw (2x2 meters)
Self-supporting pej thuam:
Kev txhawb nqa tus kheej (cov pej thuam ywj pheej) yog tsim tsis muaj cables. Lub hneev taw ntawm tus kheej txhawb nqa ntauwd yog qhov loj dua li ntawm ib tus ncej, tab sis nws tseem tsawg dua li thaj tsam uas yuav tsum tau ua rau lub cable mast.
Vim muaj cov hneev taw me me, hom pej thuam no feem ntau pom nyob hauv nroog lossis lwm qhov chaw uas tsis muaj chaw txaus.
Kev txhawb nqa tus kheej tuaj yeem tsim nrog peb sab lossis plaub sab qauv. Lawv tau sib sau ua ke hauv ntu thiab bolted mus rau peb lossis plaub inclined ntsug ntauwd ob txhais ceg.
Qhov dav ntawm ntauwd puag, qhov loj dua lub kav hlau txais xov load uas tuaj yeem txais tau.
Pull kab mast:
Lub cable mast yog tsau nrog ib tug cable, thiab lub cable yog tsau rau ntawm ib tug txheej ntawm pob zeb hauv av.
Tus txiv neej mast muaj tib seem peb sab (kwv yees 10 feet (3 meters) txhua), uas tau muab tso rau saum ib leeg. Piv txwv li, tsis zoo li cov kav hlau txais xov monopole, tus txiv neej mast tsis taper li nws nce vim tias txhua qhov muaj qhov dav tib yam.
Vim cov txiv neej no mast npog ntau qhov chaw. Conversely, ib tug Guyed mast yuav siab tshaj ib tug pej thuam uas tsis muaj guyed nyob ntawm tej thiab tso cai rau ntau dua antenna loading.
Guyed masts yog qhov zoo tagnrho rau feem ntau cov kev xav tau kev sib txuas lus, suav nrog wireless Internet, cellular thiab kav hlau txais xov xov tooj cua yees.
