Njengoko izixeko kwihlabathi liphela zibaleka ukuphucula iziseko zophuhliso ezindala nokwakha izakhiwo ezintsha zasezidolophini,iinqwaba zeshiti zentsimbiziye zavela njengesisombululo esitshintsha umdlalo—ngesantya sabo sokufakela esikhawulezayo esiba ngumqhubi ophambili wokwamkelwa, zinceda abakhi ukuba banciphise amaxesha eeprojekthi phakathi kweenkqubo zokwakha ezidolophini ezixineneyo.
Idatha yoshishino evela kwi-Global Steel Construction Association (GSCA) ibonisa ukunyuka kwama-22% ngonyaka.inqwaba yeshitiukusetyenziswa kweeprojekthi zasezidolophini ngo-2024, kuquka ukwandiswa kweendlela ezingaphantsi komhlaba, ukuphuhliswa kwakhona konxweme, kunye nomsebenzi wokumba nzulu kwiziseko eziphakamileyo. Ngokungafaniyo nezakhiwo zemveli zokugcina ikhonkrithi ezifuna iiveki zexesha lokulungisa,iinqwaba zesinyithi zanamhlanje—ehlala ilungiselelwe ukuhlangabezana nobukhulu beprojekthi ethile—inokuntywiliselwa emhlabeni ngesantya seemitha ezili-15 ukuya kwezingama-20 ngosuku, inciphisa ixesha lokwakha kwindawo nge-30% ngokomyinge.
“Ukwakhiwa kwezixeko akulindi—ukulibaziseka kuthetha iindleko eziphezulu kunye nokuphazamiseka okungakumbi kubemi,” utshilo uMaria Hernandez, injineli ephezulu yeziseko zophuhliso kwinkampani yokwakha eseMadrid i-EuroBuild. “Kwiprojekthi yethu yakutshanje yokwandiswa kwemetro eBarcelona, ukutshintshela kwi-interlockingiinqwaba zeshiti zentsimbi ezisongiweyo ezishushukwiindonga zokugcina imisele ezicociweyo iintsuku ezili-12 ukusuka kwisigaba sokumba. Oko kubaluleke kakhulu xa usebenza kwiindawo ezixineneyo apho ukufikelela kuncinci khona.
Isibheno sikaiinqwaba zeshiti zika-uidlula isantya. Iingubo zazo ezingamelani nokugqwala (ezifana ne-hot-dip galvanization okanye unyango lwe-polymer) zizenza zihlale ixesha elide ukuze zisetyenziswe kwiziseko zophuhliso, ngelixa uyilo lwazo lwemodyuli luvumela ukuba zisuswe kwaye zisetyenziswe kwakhona kwiiprojekthi ezizayo—zihambelana neenjongo zozinzo lwezixeko zehlabathi. Umzekelo, ekuphuculweni konxweme lwaseSingapore eMarina Bay, iinqwaba zamaphepha ezifakwe ngo-2023 ukuze ziqinise umhlaba obuyiselweyo ziya kusetyenziswa kwakhona kwiprojekthi yokukhusela unxweme ekufutshane ngo-2025, ukunciphisa inkunkuma yezinto eziphathekayo ngama-40%.
Abacwangcisi besixeko nabo baphawula iingenelo zezithuthi kunye nokufikelela kuluntu. EToronto, iprojekthi yokwandisa iindlela kwikota ephelileyo isebenzise iinqwaba zamaphepha ukwakha iindonga zokugcina okwethutyana ecaleni kwendawo yokusebenza. “Ngenxa yokuba ukufakelwa kugqitywe ngobusuku obuthathu kuphela, siphephe ukuvalwa ngokupheleleyo kweendlela ngexesha leeyure ezixakekileyo—into ebingenakwenzeka ngeendonga zesamente,” utshilo isithethi seSebe lezoThutho laseToronto uJames Liu.
Abavelisi basabela kwimfuno ekhulayo ngokuvelisa izinto ezintsha. Ekuqaleni kwale nyanga, umvelisi wentsimbi waseDatshi u-ArcelorMittal uqalise uhlobo olutsha lwenqwaba yeshiti ekhaphukhaphu egcina amandla aphezulu kodwa kulula ukuyithutha nokuyifakela nge-15%, ejolise kwiiprojekthi zasezidolophini eziphakathi apho ukufikelela koomatshini abanzima kunqongophele khona.
Iingcali zoshishino ziqikelela ukuba olu hlobo lwenkqubo luza kukhawulezisa ngo-2025, kwaye kulindeleke ukuba ukwamkelwa kweesheet pile kukhule nge-18% njengoko izixeko zaseAsia naseAfrika zinyusa utyalo-mali kwiziseko zophuhliso. “Ukwakhiwa kweedolophu akunciphisi isantya, kwaye abakhi bafuna izisombululo ezilungelelanisa isantya, ukhuseleko, kunye nokuzinza,” utshilo umhlalutyi weziseko zophuhliso zeGSCA, uRaj Patel. “Isheet piles zijonga zonke ezo bhokisi—kwaye indima yazo ekubumbeni izakhiwo zasezidolophini ezisebenzayo iza kuba nkulu ngakumbi.”
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Ixesha leposi: Sep-03-2025