Zithini iindawo zesiqalisi segirder?

Ii-crane ye-gantry yokuqalisasisixhobo esibalulekileyo esisetyenziswa ekwakhiweni kweebhulorho ukuhlanganisa nokufaka ii-bridge girders. Sisixhobo esikhethekileyo esenzelwe ukuphakamisa, ukuthutha nokubeka ii-bridge girders ezinzima endaweni yazo, nto leyo eyenza ukuba sibe yinxalenye ebalulekileyo yokwakhiwa kweebhulorho.

I-girder hoist ineenxalenye ezibalulekileyo ezininzi ezisebenzisanayo ukuqinisekisa ukufakwa ngokukhuselekileyo nangokufanelekileyo kwee-bridge girders. Enye yeenxalenye eziphambili yi-main beam, eyiyona nto iphambili yesakhiwo sesiqalisi. I-main beam inoxanduva lokuxhasa ubunzima be-main beam yebhulorho kunye nokubonelela ngozinzo ngexesha lokuphakamisa nokuqalisa.

Elinye icandelo elibalulekileyo lesiqalisi se-beam esiphambili yintloko yokuqalisa, ebekwe ngaphambili kwe-beam ephambili. Intloko yokudlulisela ixhotyiswe ngezixhobo ezikhethekileyo ezifana nee-hydraulic jacks kunye nezixhobo zokuphakamisa ukuze kuphakanyiswe ngokuchanekileyo kwaye kubekwe ii-bridge girders. Ikwanomatshini wokuqalisa onika inkxaso eyongezelelweyo kunye nozinzo ngexesha lokuqalisa.

Inkqubo yokumelana nobunzima yenye inxalenye ebalulekileyo yesiqalisi sebhanti kwaye yenzelwe ukulinganisela ubunzima bebhulorho kunye nesiqalisi ngokwaso. Le nkqubo iqinisekisa ukuba isiqalisi sihlala sizinzile kwaye sikhuselekile xa siphakamisa kwaye sibeka ii-girders, nto leyo enciphisa umngcipheko weengozi okanye ukonakala kwesakhiwo.

Ukongeza, isiqalisi se-beam sixhotyiswe ngenkqubo yolawulo ephucukileyo evumela umqhubi ukuba ajonge kwaye alungise inkqubo yokuphakamisa nokuqalisa. Inkqubo yolawulo ibandakanya izinto ze-hydraulic kunye nezombane ezivumela intshukumo echanekileyo nelawulwayo ukuqinisekisa ukufakwa okukhuselekileyo nokuchanekileyo kwe-bridge girders.

Ngamafutshane, isixhobo sokuphakamisa iibhulorho sisixhobo esintsonkothileyo sokwakha iibhulorho esinezinto ezininzi ezibalulekileyo ezisebenzisanayo ukuphakamisa, ukuthutha kunye nokubeka iibhulorho eziqinileyo ngexesha lokwakhiwa kweebhulorho. Uyilo lwayo olutsha kunye nobuchwepheshe obuphambili buyenza ibe sisixhobo esibalulekileyo kwiiprojekthi zokwakha iibhulorho, nto leyo evumela ukufakwa kweebhulorho ngendlela efanelekileyo nekhuselekileyo.