Enye yeenzuzo eziphambili zeiikhreyini zebhulorho ezihamba phezulukukuba zinokuyilwa ukuphatha imithwalo egqithisileyo. Ngokunjalo, ziqhelekile ukuba zikhulu kuneekhreyini zesitokhwe, ke ngoko azinako nje ukuba nomthamo ophezulu olinganiselweyo kuneekhreyini zesitokhwe, kodwa zinokuthatha iindawo ezibanzi phakathi kweepali zomzila ngenxa yobukhulu obukhulu bamalungu olwakhiwo enza inkqubo.
Ukuxhoma i-crane trolley phezulu kweebhulorho zebhulorho kukwabonelela ngeenzuzo kwimbono yokulondoloza, ukuququzelela ukufikelela lula kunye nokulungiswa. Iphezulu ebalekayo enye girder craneuhlala phezu kwemiqadi yebhulorho, ngoko ke abasebenzi bolondolozo banokwenza imisebenzi eyimfuneko kwisiza nje ukuba kukho indlela yokuhamba okanye ezinye iindlela zokufikelela kwindawo.
Kwezinye iimeko, ukunyusela itroli phezu kwemiqadi yebhulorho kunokuthintela intshukumo kuyo yonke indawo. Umzekelo, ukuba uphahla lweziko luthambekile kwaye ibhulorho ibekwe kufutshane nesilingi, umgama onokuthi ufikelele kwi-crane ephezulu eqhuba i-single girder crane ukusuka ekudibaneni kwesilingi kunye nodonga lunokuncipha, ukukhawulela indawo enokuthi i-crane ifike kuyo. inokugubungela ngaphakathi kwendawo yonke yesibonelelo.
Iikhreyini ezihamba phezulu ezibalekayobaleka kumzila kaloliwe omiselweyo obekwe phezu komgaqo weenqwelo-moya ngamnye, ovumela iilori zokuphela ukuba zithwale i-girder kwaye ziphakamise phezulu. Ezi cranes zinokusekwa njengemiqadi enye okanye kabini, ngokuxhomekeke kwiimfuno zesicelo.
Ezinye zeenzuzo eziphambili zeiikhreyini zebhulorho ezihamba phezuluziquka:
Akukho mthamo uthintelweyo. Oku kuvumela ukuba iphathe imithwalo emincinci kunye nemikhulu.
Ukunyusa ukuphakama kokuphakamisa. Ukukhwela phezu komqadi wengoma nganye kwandisa ukuphakama kokuphakamisa, okuluncedo kwizakhiwo ezinezindlu ezilinganiselweyo.
Ufakelo olulula. Ekubeni i-crane ephezulu eqhuba i-overhead ixhaswa yimiqadi yomzila, into yomthwalo wokuxhoma iyapheliswa, ukwenza ukufakela kube lula.
Ukugcinwa okuncinci. Ngokuhamba kwexesha, i-crane yebhulorho ehamba phezulu ayifuni ukugcinwa okuninzi, ngaphandle kokuhlolwa rhoqo ukuqinisekisa ukuba amathrekhi ahambelana ngokufanelekileyo kwaye ukuba kukho nayiphi na imiba.
