Yimuphi umugqa osetshenziswayo ukuqalisa i-girder?

Emikhakheni yokwakha nobunjiniyela, ukuphathwa kwezinto ezisindayo ngendlela ephumelelayo nephephile kubaluleke kakhulu. Omunye wemisebenzi ebaluleke kakhulu ekwakhiweni kwamabhuloho kanye namaphrojekthi engqalasizinda amakhulu ukuqaliswa kwama-girder. Ngenxa yalokhu, kusetshenziswa umshini okhethekile owaziwa ngokuthi i-launcher girder crane.

I-girder crane yokuqalisaiklanyelwe ngqo ukuphakamisa nokubeka ama-girder amakhulu, okuyizinto ezibalulekile ekwakhiweni kwamabhuloho kanye nezindawo zokudlula. La ma-crane aklanyelwe ukubhekana nezinselele ezihlukile ezihambisana nokuqaliswa kwama-girder, okuhlanganisa isidingo sokubekwa ngokunembile kanye nekhono lokusebenza ezindaweni ezivalekile. Umklamo we-launcher girder crane ngokuvamile unendawo ende kanye nomthamo wokuphakamisa oqinile, okuvumela ukuthi uqondise ama-girder asindayo endaweni yawo kalula.

Ukusebenza kwe-launcher girder crane kuhilela izinyathelo eziningana ezibalulekile. Okokuqala, i-crane ibekwa endaweni yokwakha, ngokuvamile epulatifomu yesikhashana noma emzileni. Uma isikhona, indlela yokuphakamisa i-crane isetshenziselwa ukuphakamisa i-girder endaweni yayo yokuthutha. Umqhubi we-crane kumele alawule ngokucophelela ukunyakaza kwe-girder ukuqinisekisa ukuthi ihambisana kahle nezakhiwo ezisekelayo. Lokhu kudinga izinga eliphezulu lekhono nokuxhumana, njengoba noma yikuphi ukungalungi kungaholela ekubambezelekeni okukhulu kanye nezingozi zokuphepha.

Ngaphezu kwama-crane endabuko okuqalisa, kukhona nezinhlobo ezahlukene ezifana nesiqalisi se-cantilever, esiwusizo kakhulu ekuqaliseni ama-girders phezu kwezakhiwo noma izithiyo ezikhona. Lawa ma-crane afakwe ubuchwepheshe obuthuthukisiwe, okuhlanganisa izinhlelo zokulawula kude kanye nezici ezenzakalelayo, ukuthuthukisa ukuphepha nokusebenza kahle ngesikhathi senqubo yokuqalisa.

Ekuphetheni, i-launcher girder crane iyithuluzi elibalulekile embonini yokwakha, elenzelwe ngqo ukuqaliswa okuphephile nokuphumelelayo kwama-girder. Izici zayo ezikhethekile namakhono kwenza kube yinto ekhethwa kakhulu onjiniyela kanye nabakhi ababandakanyeka kumaphrojekthi engqalasizinda amakhulu.