I te whakataetae a ngā tāone o te ao ki te whakapai ake i ngā hanganga tawhito me te hanga whare hou mō ngā tāone,puranga pepa maitaikua puta ake hei otinga whakarerekē i te kēmu—ko te tere o te tāutanga te mea matua hei akiaki i te whakamahinga, hei āwhina i ngā kaimahi kirimana ki te whakapoto i ngā wā kaupapa i waenga i ngā wā hangahanga tāone kuiti.
E whakaatu ana ngā raraunga ahumahi mai i te Global Steel Construction Association (GSCA) i te pikinga 22% i ia taupuranga pepate whakamahinga mō ngā kaupapa tāone i te tau 2024, tae atu ki ngā whakawhānuitanga o te ara raro whenua, te whakawhanaketanga anō i te taha o te wai, me ngā mahi keri hohonu mō ngā turanga teitei. He rerekē ki ngā hanganga pupuri raima tuku iho e hiahia ana kia wiki te roa o te wā whakamaroke,ngā puranga pepa maitai hou—he maha ngā wā kua oti te hanga i mua kia tutuki ai ngā rahinga motuhake mō te kaupapa—ka taea te wero ki te whenua i te tere o te 15 ki te 20 mita rārangi ia rā, ka whakaiti i te wā hanga i te papaanga mā te 30% i te toharite.
"Kāore te hanganga tāone e tatari—ko te whakaroa he nui ake ngā utu, ā, he nui ake te whakararuraru ki ngā kainoho," te kī a Maria Hernandez, he miihini hanganga matua i te kamupene hanga whare o EuroBuild i Madrid. "Mō tā mātou kaupapa whakawhānui tereina i Barcelona, te huri ki te hononga-ā-ringapuranga pepa maitai hurihuri weramō ngā pakitara pupuri o te kauhanga i tangohia kia 12 ngā rā mai i te wā keri. He mea nui tēnā ina mahi ana koe i ngā takiwa kikī me te iti o te urunga atu.”
Te tono apuranga rau uka horapa atu i tua atu i te tere. Mā ō rātou paninga ātete-waikura (pēnei i te whakapūmau wera, i ngā maimoatanga polymer rānei) ka roa ai te whakamahinga mō ngā hanganga mō te wā roa, ā, mā te hoahoa ā-pūtau ka taea te tango me te whakamahi anō i ngā kaupapa ā muri ake nei—e hangai ana ki ngā whāinga pumau o te tāone o te ao. Hei tauira, i roto i te whakahoutanga o te tahataha o Marina Bay i Singapore, ko ngā puranga rau i tāutahia i te tau 2023 hei whakau i te whenua kua whakahokia mai ka whakamahia anō mō tētahi kaupapa tiaki takutai tata i te tau 2025, ka whakaitihia te para rauemi mā te 40%.
Kei te kite hoki ngā kaiwhakamahere tāone i ngā painga mō te waka me te urunga a te marea. I Toronto, i te hauwhā whakamutunga, i whakamahia e tētahi kaupapa whakawhānui rori ngā pou pepa hei hanga taiepa pupuri rangitahi i te rohe mahi. "Nā te mea i oti te tāutanga i roto i ngā pō e toru noa iho, i karohia e mātou te kati katoa o ngā rori i ngā hāora pīrahi - he mea kāore e taea me ngā taiepa raima," te kī a James Liu, te kaikorero mō te Tari Waka o Toronto.
Kei te aro atu ngā kaihanga ki te pikinga o te tono mā te auaha anō. I te tīmatanga o tēnei marama, i whakarewahia e te kaihanga maitai Tatimana, a ArcelorMittal, tētahi momo puranga pepa mama hou e mau tonu ana te kaha engari he 15% te māmā ake ki te kawe me te tāuta, e aro ana ki ngā kaupapa tāone rahi-waenga kei reira he iti noa te urunga atu ki ngā mīhini taumaha.
E matapaetia ana e ngā tohunga ahumahi ka tere ake te ia o te whanaketanga i te tau 2025, me te tumanako ka piki ake te whakamahinga o ngā papa rakau mā te 18% anō i te mea ka whakanui ake ngā tāone o Āhia me Āwherika i ngā haumitanga hanganga. "Kāore te noho tāone e puhoi ana, ā, me whai otinga ngā kaimahi kirimana e whakataurite ana i te tere, te haumaru, me te pumau," te kī a Raj Patel, te kaitātari hanganga o GSCA. "Ka tutuki i ngā papa rakau ēnei whakaritenga katoa—ā, ka nui haere tonu tā rātou mahi ki te hanga i ngā hanganga tāone whai hua."
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Wā tuku: Hepetema-03-2025