Njengezixeko zehlabathi zibaleka ukuphuculwa kweziseko zophuhliso ezigugayo kunye nokwakha amaziko amatsha asezidolophini,iimfumba sheet sheetziye zavela njengesisombululo esitshintsha umdlalo-ngesantya sofakelo olukhawulezayo lube ngumqhubi ophambili wokwamkelwa, ukunceda iikontraka ukuba zicuthe amaxesha eprojekthi phakathi kweeshedyuli eziqinileyo zokwakha ezidolophini.
Idatha yoshishino evela kwiGlobal Steel Construction Association (GSCA) ibonisa ukunyuka kwama-22% unyaka nonyakainqwaba yeshitiUkusetyenziswa kweeprojekthi zasedolophini ngo-2024, ukwandiswa kwendlela ehamba phantsi komhlaba, ukwakhiwa ngokutsha komda wamanzi, kunye nomsebenzi wokwemba nzulu kwiziseko eziphakamileyo. Ngokungafaniyo nezakhiwo zokugcina ikhonkrithi ezifuna iiveki zokunyanga,iimfumba zentsimbi zanamhlanje-ehlala ilungiselelwe ukuhlangabezana nemilinganiselo yeprojekthi ethile-inokuqhutyelwa emhlabeni ngesantya se-15 ukuya kwi-20 yemitha ye-linear ngosuku, ukusika ixesha lokwakha kwisiza ngama-30% ngokomndilili.
“Ulwakhiwo lwasezidolophini alulindi—ukulibaziseka kuthetha iindleko eziphezulu kunye nokuphazamiseka okungakumbi kubahlali,” utshilo uMaria Hernandez, injineli ephezulu yeziseko zophuhliso kwifemu esekwe eMadrid i-EuroBuild. “Kwiprojekthi yethu yamva nje yolwandiso lwemetro eBarcelona, sitshintshela ekudibaneniiimfumba zamaphepha entsimbi ashushukuba iindonga ezigcina itonela zichetywe iintsuku ezili-12 ukusuka kwinqanaba lokomba. Ibalulekile loo nto xa usebenza kwiindawo ezixineneyo ezinokufikelela okulinganiselweyo. ”
Isibheno seiimfumba zeshitiidlulela ngaphaya kwesantya. Iingubo zabo ezichasene ne-corrosion (ezifana ne-hot-dip galvanization okanye unyango lwe-polymer) zenza ukuba zisebenze ixesha elide lokusetyenziswa kweziseko ezingundoqo, ngelixa i-design yabo yemodyuli ivumela ukususwa ngokulula kunye nokusetyenziswa kwakhona kwiiprojekthi ezizayo-ukulungelelanisa neenjongo zokuzinza ezidolophini zehlabathi. Kuphuculo oluphambi kolwandle lwase-Marina Bay lwase-Singapore, umzekelo, iingqumba zamashiti ezifakwe ngo-2023 ukuzinzisa umhlaba obuyiselweyo ziya kuphinda zisetyenziswe kwiprojekthi yokhuselo lonxweme ekufutshane ngo-2025, ukunciphisa inkunkuma nge-40%.
Abacwangcisi besixeko nabo baqaphela iinzuzo zezithuthi kunye nokufikelela koluntu. EToronto, iprojekthi yolwandiso lwendlela kwikota yokugqibela isebenzise iimfumba zamashiti ukwakha iindonga ezigcina okwethutyana ecaleni kwendawo yokusebenza. “Ngenxa yokuba ukufakela kugqitywe ngobusuku nje obuthathu, sakuphepha ukuvalwa ngokupheleleyo kweendlela ngamaxesha axakeke kakhulu—nto leyo eyayingenakwenzeka ngeendonga zekonkile,” satsho isithethi seSebe Lezothutho laseToronto uJames Liu.
Abavelisi basabela kwimfuno ekhulayo ngokuyila izinto ezintsha ngakumbi. Ekuqaleni kwale nyanga, umvelisi wentsimbi waseDatshi u-ArcelorMittal uye wasungula uhlobo olutsha lwemfumba yeshiti ekhaphukhaphu olugcina amandla aphezulu kodwa lulula nge-15% ukuthuthwa nokulufaka, lujolise kwiiprojekthi ezisezidolophini ezinobukhulu obuphakathi apho ukufikelela koomatshini abakhulu kulinganiselwe.
Iingcali zoshishino ziqikelela ukuba le meko iza kunyuka ngo-2025, kwaye ukwamkelwa kwamaphepha kulindeleke ukuba kukhule nge-18% njengoko izixeko zase-Asiya nase-Afrika zinyusa utyalo-mali kwiziseko ezingundoqo. “Ukufudukela ezidolophini akunciphisi, kwaye iikontraka zifuna izisombululo ezilungelelanisa isantya, ukhuseleko kunye nozinzo,” utshilo umhlalutyi weziseko zophuhliso weGSCA, uRaj Patel. "Iimfumba zamaphepha zijonga zonke ezo bhokisi-kwaye indima yazo ekubumbeni ukwakhiwa kwedolophu ngokufanelekileyo iya kuba nkulu."
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Ixesha lokuposa: Sep-03-2025