Njengoba amadolobha emhlabeni wonke egijimela ukuthuthukisa ingqalasizinda eguga futhi akhe izindawo ezintsha zasemadolobheni,izinqwaba zeshidi lensimbiziye zavela njengesixazululo esishintsha umdlalo—ngejubane lazo lokufaka elisheshayo libe umshayeli oyinhloko wokutholwa, okusiza osonkontileka ukuba banciphise izikhathi zephrojekthi phakathi kwamashejuli okwakhiwa kwamadolobha aqinile.
Idatha yemboni evela kwiGlobal Steel Construction Association (GSCA) ikhombisa ukunyuka kwama-22% unyaka nonyakainqwaba yeshidiukusetshenziswa kwamaphrojekthi asemadolobheni ngo-2024, ukunwetshwa kwesitimela esingaphansi komhlaba, ukuthuthukiswa kabusha kwendawo yamanzi, nomsebenzi wokumba ojulile wezisekelo eziphakeme. Ngokungafani nezakhiwo zendabuko zokugcina ukhonkolo ezidinga amasonto esikhathi sokuphulukisa,izinqwaba zeshidi lensimbi yesimanje-ngokuvamile ukwakhiwa ukuze kuhlangatshezwane nobukhulu obuthize iphrojekthi-ingashayelwa phansi ngenani lamamitha aqondile ayi-15 kuya kwangu-20 ngosuku, kunqanyulwe isikhathi sokwakha endaweni ngama-30% ngokwesilinganiso.
“Ukwakhiwa kwamadolobha akulindi—ukubambezeleka kusho izindleko eziphakeme kanye nokuphazamiseka okwengeziwe ezakhamuzini,” kusho uMaria Hernandez, unjiniyela omkhulu wengqalasizinda enkampanini yokwakha ezinze eMadrid i-EuroBuild. “Kuphrojekthi yethu yakamuva yokwelula kamasipala e-Barcelona, sishintshela ekuxhumaneniinqwaba yeshidi eligoqiwe elishisayongoba izindonga ezigcina umhubhe ziphuce izinsuku eziyi-12 ukusuka esigabeni sokumba. Lokho kubalulekile uma usebenza ezindaweni eziminyene futhi ukufinyelela okulinganiselwe.”
Isikhalazo seu ishidi izinqwabaidlulela ngale kwejubane. Izembatho zazo ezimelana nokugqwala (ezifana ne-hot-dip galvanization noma ukwelashwa kwe-polymer) zizenza ziqine ukuze zisetshenziswe ingqalasizinda yesikhathi eside, kuyilapho ukwakheka kwazo okumodulayo kuvumela ukususwa futhi kusetshenziswe kabusha kumaphrojekthi wesikhathi esizayo—ukuhambisana nemigomo yomhlaba wonke yokusimama kwedolobha. Ekuthuthukisweni kwamanzi e-Marina Bay yase-Singapore, isibonelo, izinqwaba zamashidi ezifakwe ngo-2023 ukuze kunzinziswe umhlaba obuyisiwe zizosetshenziselwa iphrojekthi eseduze yokuvikela ugu ngo-2025, ukunciphisa imfucuza ngo-40%.
Abahleli bedolobha nabo bayayiqaphela imihlomulo yethrafikhi nokungena komphakathi. E-Toronto, iphrojekthi yokwandiswa komgwaqo ngekota edlule yasebenzisa izinqwaba zamashidi ukuze kwakhiwe izindonga ezibamba isikhashana endaweni yokusebenza. “Ngenxa yokuthi ukufakwa kwaqedwa ngobusuku obuthathu nje kuphela, sagwema ukuvalwa kwemigwaqo egcwele phakathi namahora aphakeme—into eyayingenakwenzeka ngezindonga zikakhonkolo,” kusho umkhulumeli woMnyango Wezokuthutha eToronto uJames Liu.
Abakhiqizi basabela esidingweni esikhulayo ngokusungula izinto ezintsha. Ngasekuqaleni kwale nyanga, umkhiqizi wensimbi wase-Dutch u-ArcelorMittal wethule okuhlukile okusha kwenqwaba yeshidi elingasindi eligcina amandla aphezulu kodwa kulula ngo-15% ukulithwala nokulifaka, eliqondise amaphrojekthi asemadolobheni aphakathi nendawo lapho ukufinyelela kwemishini esindayo kulinganiselwe.
Ochwepheshe bezimboni babikezela ukuthi lesi simo sizokhula ngesivinini ngo-2025, kanti ukwamukelwa kwenqwaba yamashidi kulindeleke ukuthi kukhule ngenye i-18% njengoba amadolobha ase-Asia nase-Afrika eqinisa ukutshalwa kwezimali kwengqalasizinda. "Ukufudukela emadolobheni akunciphisi, futhi osonkontileka badinga izixazululo ezilinganisa isivinini, ukuphepha, nokusimama," kusho umhlaziyi wengqalasizinda wakwa-GSCA, u-Raj Patel. “Izinqwaba zamashidi zihlola wonke lawo mabhokisi—futhi indima yazo ekulolongeni ukwakhiwa kwamadolobha okuphumelelayo izoba nkulu.”
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Isikhathi sokuthumela: Sep-03-2025