Thekaviri girder pamusoro pecranechinhu chinorema-basa chekusimudza chinoshandiswa zvakanyanya mukugadzirwa kwemaindasitiri, chakagadzirirwa yakakwirira-yakanyanya, inowanzoshandiswa nzvimbo dzekushanda. Inotsigirwa nematanda makuru maviri uye inogona kutakura uremu hukuru.
Thekaviri girder pamusoro pecraneine simba rakasimba rekutakura uye rinowanzokwanisa kubata zvinhu kubva pamatani gumi kusvika ku500 matani uye pamusoro. Izvi zvinoita kuti ive sarudzo yakanaka kune inorema michina uye yakakura kubata zvinhu mukugadzirwa kwemaindasitiri. Kuenzaniswa ne-single-girder overhead cranes, kaviri-girder cranes inogona kutsigira yakakura spans uye yakakwirira yekusimudza kukwirira, ichienderana neakasiyana siyana ekushanda nharaunda.
The double girdereot crane's double-beam chimiro chinopa kugadzikana kwepamusoro, kunyanya kana uchisimudza uremu kana zvinhu zvisina kuumbwa. Panguva imwecheteyo, yakashongedzerwa neyepamusoro-chaiyo yekudzora sisitimu iyo inogona kuita chaiyo kushanda kwecrane kuve nechokwadi chekubata uye yakachengeteka zvinhu.
Dhizaini yekaviri girdereot craneinogona kugadzirwa zvinoenderana nezvinodiwa zvekushandisa, kusanganisira kusimudza kureba, span, mutoro wekuremerwa uye track yekufamba. Vashandisi vanogona kusarudza yakanyatsokodzera gadziriso yemidziyo zvinoenderana nemamiriro chaiwo enzvimbo yavo yebasa, kuitira kuti vawedzere kugona kwekugadzira.
Double girder Bridge craneinowanzo kuve yakashongedzerwa nemhando dzakasiyana dzekuchengetedza, senge overload kuchengetedza, anti-collision system uye emergency stop mudziyo. Aya maturusi ekuchengetedza anogona kunyatso kudzikisa njodzi dzekushanda uye kuve nechokwadi chekuchengetedzwa kwevashandi nemidziyo. Double girder bridge crane yakaiswa pamusoro pewekishopu kana chivakwa chefekitari, isingatore nzvimbo yepasi, inovandudza zvakanyanya mwero wekushandiswa kwenzvimbo yekushandira yewekishopu. Iyi dhizaini inoita kuti ive yakakosha kune nzvimbo dzebasa dzinoda nzvimbo yakakura yepasi.
Kaviri girder pamusoro pecraneinogona kusangana nezvinodiwa zvenzvimbo dzakasiyana dzebasa uye kupa mabhizinesi ane anobudirira uye akachengeteka ekugadzirisa zvinhu kuburikidza neyakagadzirirwa dhizaini. Nekuenderera mberi kwekukura kwechido cheindasitiri, maviri girder bridge cranes acharamba achiita basa rakakosha mune ramangwana kusimudzira budiriro yezvigadzirwa mumaindasitiri akasiyana.
