Kaviri Girder Pamusoro peCraneikireni yebhiriji inokodzera mukati kana kunze yakagadziriswa span mashandiro, uye inoshandiswa zvakanyanya mukubata nekutakura kwezvinhu zvakasiyana-siyana zvinorema. Dhizaini yaro yakasimba uye chimiro chakatsiga chakanyanya kukodzera nzvimbo dzekushanda dzinoda kunyatsomira uye kuungana kunorema.
Kuenzaniswa ne-single-beamzambukocranes,kaviri girder pamusoro pepamusoro cranesvane chimiro chakasimba, chakasimba chekutakura mutoro, uye zvakachengetedzeka kushandisa. Naizvozvo, huwandu hwayo hwekusimudza huwandu hwakafara, uye hunogona kutakura zvinhu zvinorema kubva pamatani matatu kusvika makumi mashanu. Kureba kwayo kunogona kugadziridzwa zvichienderana nezvinodiwa chaizvo, kubva pa10.5 metres kusvika 31.5 metres, uye kureba kwayo kwekusimudza kunobva pamamita matanhatu kusvika ku30 metres, inogona kusangana nemhando dzakasiyana dzekushandisa. Iyo yakapetwa kaviri girder pamusoro pepamusoro crane mutengo inopesvedzerwa nezvinhu zvakaita sekuremedza huwandu, span, uye tsika maficha, zvichiita kuti zvive zvakakosha kuti uwane fungidziro chaiyo.
Iyo yekushanda mode ye crane inogona kusarudzwa zvichienderana nemamiriro chaiwo esaiti, kusanganisira kushanda kwepasi, kushanda kure, uye cab kushanda. Sezvo kaviri girder overhead cranes kazhinji iine spans hombe, makuru ekusimudza masimba, uye yakakwirira yekusimudza makwiriro, mashandiro ekombi anowanzo kufarirwa kuve nechokwadi kugadzikana uye kuchengetedzeka kwekushanda.
Thekaviri girder eot craneinonyanya kukodzera nzvimbo dzebasa dzinoda kunyatsomira uye kuungana kukuru kwechikamu. Yayo yakasimba kutakura mutoro uye huwandu hwakawanda hwekushandisa inoita kuti ive yakakosha uye yakakosha michina mumaindasitiri akasiyana. Zvingave mumashopu ekugadzira michina inorema, zvidyarwa zvesimbi, kana mashopu ekugadzira zvemagetsi anoda mashandiro epamusoro-soro, anogona kupa kuita kwakanaka uye kuvimbika.
Nekusarudza kaviri girder eot crane, vashandisi vanogona kuvandudza zvakanyanya kugona kwekubata zvinhu uku vachiona kuchengetedzwa kwemashandiro. Iyo yakawanda yekushanda modhi, yakasimba kutakura mutoro uye inochinjika dhizaini dhizaini inoita kuti ive yakasarudzika yekusimudza michina mumaindasitiri mazhinji. Negotiating thekaviri girder pamusoro pecrane mutengozvinogona kukonzera kuchengetedza kwakakosha, kunyanya kana uchitenga zvakawanda kana zvezvirongwa zvakakura.
