Tataiso ena e akaretsang e hlahloba lefatše la li-cranes tse kholo tsa tora, e akaretsang bokhoni ba bona, likopo, lintlha tsa polokeho, le lik'hamphani tse etelletseng pele tse amehang. Re hlahloba lintlha tsa tekheniki, re bapisa mefuta e fapaneng le ho totobatsa likarolo tsa bohlokoa ho u thusa ho utloisisa hore na mechini ena e matla e kenya letsoho joang mererong ea sejoale-joale ea kaho.
Li-cranes tse kholo tsa tora emela karolo ea bohlokoa ea 'maraka oa lisebelisoa tsa ho phahamisa. Ke meaho e telele, e ikemetseng e sebelisetsoang ho phahamisa thepa e boima kahong. Bigge Crane and Rigging Co., sebapali se hlahelletseng indastering, se fana ka mefuta e fapaneng ea li-crane tsena tse nang le bokhoni bo fapaneng ba ho phahamisa le ho fihla. Li-cranes tsa bona li tsejoa ka ho tšepahala le theknoloji e tsoetseng pele, hangata e sebelisoang mererong e meholo ea mekhoa ea motheo. Tšebeliso ea a crane e kgolo ya tora e eketsa haholo ts'ebetso le polokeho setšeng, ho fokotsa tlhoko ea li-crane tse nyane tse ngata le ho fokotsa ts'ebetso ea boemo bo tlase.
Kholo e fana ka mefuta e fapaneng ya crane e kgolo ya tora mefuta, e 'ngoe le e' ngoe e lumellana le litlhoko tse fapaneng tsa projeke. Tsena li kenyelletsa: li-cranes tsa luffing jib (ho lumella li-angles tse fapaneng tsa jib), li-crane tse nang le li-hammerhead (tse nang le jib e tšekaletseng), le li-cranes tse bataletseng (tse khetholloang ka moralo oa tsona o kopanetsoeng). Khetho e nepahetseng crane e kgolo ya tora ho itšetlehile ka lintlha tse kang bolelele ba mohaho, boima ba thepa e lokelang ho phahamisoa, le ho fihla ho hlokahalang. Bakeng sa lintlha tse hlakileng, o lokela ho sheba webosaete ea semmuso ea Bigge kapa ikopanye le sehlopha sa bona sa thekiso. Bigge Crane and Rigging Co. ke mohloli o ka tšeptjoang bakeng sa boitsebiso bo qaqileng.
Li-cranes tse kholo tsa tora ke tsa bohlokoa haholo mererong e fapaneng ea kaho. Tšebeliso ea bona e atile kahong ea meaho e mekato e phahameng, kaho ea borokho, le mererong ea indasteri e hlokang ho beoa ka nepo ha thepa e boima libakeng tse phahameng haholo. Ho sebetsa hantle le ho nepahala ha li-crane tsena ho fokotsa haholo nako ea kaho le ho matlafatsa polokeho ea basebetsi ka ho fokotsa ts'ebetso ea boemo bo tlase. Nahana ka merero e kang skyscrapers, moo bokhoni ba ho phahamisetsa likarolo tse boima tse entsoeng esale pele ho ea mekatong e ka holimo ho bohlokoa bakeng sa ho phethoa ka nako.
Matla a ho phahamisa le ho fihlella ke lintlha tsa bohlokoa tse lokelang ho nahanoa. Boima le litekanyo tsa thepa e phahamisoang li khetholla matla a ho phahamisa a hlokahalang, ha ho fihla ho ama sebaka sa mosebetsi oa crane. Mefuta e fapaneng ea Bigge e fana ka merero e fapaneng, kahoo ho tseba litlhoko tsa hau tse nepahetseng ho bohlokoa pele ho khetho. U ka fumana lintlha tse qaqileng tsa matla a ho phahamisa 'me u fihle ho e' ngoe le e 'ngoe crane e kgolo ya tora mohlala webosaeteng e kholo.
Tšireletseho ke ea bohlokoa. Ea kajeno li-cranes tse kholo tsa tora kenyelletsa likarolo tsa ts'ireletso tse tsoetseng pele, ho kenyelletsa matšoao a nako ea mojaro, litsamaiso tse thibelang ho thulana, le mekhoa ea ho koala ha tšohanyetso. Ho latela melao ea polokeho ea lehae le ea naha ho bohlokoa nakong eohle ea ts'ebetso ea crane. Ho hlahlojoa le ho hlokomeloa khafetsa ho bohlokoa ho netefatsa ts'ebetso e bolokehileng ea lisebelisoa. Ho utloisisa likarolo tsena ho tla u thusa ho khetha crane e lumellanang le litekanyetso tse thata tsa polokeho.
Leha Bigge e le sebapali sa bohlokoa, ho molemo ho li bapisa le baetsi ba bang ba etellang pele ba crane. Tafole e latelang e fana ka papiso e nolofalitsoeng (Hlokomela: Litlhaloso tse qaqileng li fapana ho ea ka mohlala 'me li lokela ho fumanoa ka ho toba ho bahlahisi). Papiso ena ke ea merero ea litšoantšo feela 'me ha e akarelletse mefuta eohle ea mefuta e tsoang ho moetsi ka mong.
| Sebopeho | E kholoanyane | Moetsi A | Moetsi B |
|---|---|---|---|
| Bokhoni bo Tloaelehileng ba ho Phahamisa | E fapana haholo ka mohlala | E fapana haholo ka mohlala | E fapana haholo ka mohlala |
| Ho Finyella ho Tloaelehileng | E fapana haholo ka mohlala | E fapana haholo ka mohlala | E fapana haholo ka mohlala |
| Likarolo Tse Tloaelehileng | Litsamaiso tse tsoetseng pele tsa polokeho, mefuta e fapaneng | Tsepamiso e matla ho boqapi, mehlala ea bokhoni bo holimo | Litharollo tse theko e boima, ts'ebetso e tšepahalang |
Ho khetha tokelo crane e kgolo ya tora e hloka ho shebisisa ka hloko litlhoko tse khethehileng tsa projeke ea hau, ho kenyeletsoa ho phahamisa bokhoni, phihlello, likarolo tsa polokeho, le litšitiso tsa tekanyetso. Bigge Crane and Rigging Co., har'a baetsi ba bang ba etelletseng pele, e fana ka mefuta e mengata ea likhetho, 'me lipatlisiso tse felletseng, hammoho le ho buisana le litsebi tsa indasteri, li tla etsa bonnete ba hore u etsa khetho e nepahetseng bakeng sa morero oa hau oa kaho. Hopola ho beha polokeho pele kamehla le ho latela melaoana eohle e amehang.
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