He mahi nui tā ngā whare hanganga rino i roto i ngā kaupapa ahumahi, arumoni, me ngā kaupapa hanganga hou. Ko te tere o te noho tāone me te whakapai ake i ngā ahumahi kei te akiaki tonu i te hiahia mō ngā pūnaha whare whai hua. He kaha teitei, he hoahoa ngāwari, me ngā huringa hanga tere ngā hanganga rino. E ai ki te World Steel Association, neke atu i te 1.1 piriona tana ia tau te whakamahinga rino hanga o te ao.
Ngā Momo Matua o ngā Whare Hanganga Rino
Hanganga maitaiKa taea te whakarōpū i ngā whare i runga i te pūnaha kawenga me te āhua ā-wāhi. Ko ngā hanganga anga tatau te momo tino noa mō ngā whare ahumahi. Ko te whānui o ēnei hanganga he 18–36 mita te roa, ā, ko te teitei o ngā tuanui he 6–12 mita te teitei. Ka whakamahia e ngā anga tatau ngā pou me ngā kurupae maitai āhua-H, e whakaiti ana i te whakamahinga maitai mā te 10–15% ki te whakataurite ki ngā pūnaha raima whakapakari tuku iho.
He maha ngā papa o ngā hanganga rino e whakamahia ana mō ngā whare tari me ngā whare arumoni. Ko te tawhiti o ngā pou i waenga i te 6 ki te 9 mita. Ka tautokohia e ngā anga rino ngā kawenga papa o te 3–5 kN/m² mō ngā tari me te 5–7 kN/m² mō ngā whare hokohoko. Mā ngā hononga pakari ka pumau te taha i raro i ngā kawenga hau me te rū whenua.
He pai ngā hanganga rino mō ngā whare whānui pēnei i ngā whare whakaaturanga me ngā whare hanga whare. Ka eke ngā whānuitanga o ngā whānuitanga noa ki te 60–120 mita. He rite te teitei o te whānuitanga ki te 1/10 ki te 1/15 o te whānuitanga, e taurite ana i te pakari me te whai huatanga o ngā rauemi. Ka whakapai ake ngā hanganga anga wāhi i te tohatoha kawenga, ā, ka whakaiti i te taumaha rino tae atu ki te 20%.
Ngā hanganga maitai māmāKo ngā hanganga whare noho me ngā hanganga ā-pūrua te nuinga. Ko ngā wāhanga maitai matao-hanga me te matotoru o te 0.8–2.5 mm ka whakarato i te kaha e tika ana. Ka tutuki i ēnei pūnaha ngā paerewa mō ngā whakaritenga ā-ru whenua puta noa i te ao.
Ngā Painga Matua o ngā Whare Hanganga Rino
He tino pai te mahi ā-mīhini a ngā hanganga rino. Ko te kaha whakaputa o te rino hanganga he 235–460 MPa te nuinga. Ko ngā momo rino kaha teitei pēnei i te Q355 ka whakaiti i te rahi o ngā mema, ā, ka tapahia te whakamahinga katoa o te rino mā te 8–12%. Mā tēnei painga ka whakaiti tika i ngā kawenga turanga me ngā utu hanga.
He painga nui tonu te tere o te hanga. Mā te hanga i mua i te wheketere ka taea te whai hua o te huihuinga i te papaanga. Ko te tikanga ka oti te whakatūnga o tētahi awheawhe maitai 10,000 m² i roto i ngā rā 30–45. Ko ngā hanganga raima o taua tauine he maha ngā wā e hiahiatia ana neke atu i te 90 rā. Mā ngā wā poto ake ka whakaitihia ngā utu mahi mā te 20–30%.
He pai te mahi a ngā hanganga rino i ngā rohe rū whenua. Neke atu i te 20% te tere whakaroa o te rino, e whakarite ana i te kaha o te tohatoha pūngao. I ngā wā rū whenua, ka mimitihia e ngā anga rino ngā kaha rū whenua mā te whakarerekētanga kua whakahaeretia. E whakaatu ana ngā raraunga mai i te rū whenua Tōhoku i Hapani i te tau 2011 he 40% te iti iho o te kino o te hanganga o ngā whare rino i ngā whare pereki.
Ka tautokohia hoki e te oranga tonutanga te tango i te maitai. Neke atu i te 90% o te ao te auau hangarua o te maitai hanganga. Mā te hanga maitai hangarua ka penapena i te 60% o te pūngao, ā, ka whakaitihia ngā tukunga CO₂ mā te 1.5 tāne mō ia tāne o te maitai. Ka taea hoki e ngā hanganga maitai te whakawhānui me te wetewete ngāwari, e tautoko ana i te uara rawa mō te wā roa.
Ngā Kaupapa Hoahoa Matua mō ngā Whare Hanganga Rino
Ko te tatau tika i te kawenga te tūāpapa o te hoahoa hanganga maitai. Me whai whakaaro ngā kaihoahoa ki te kawenga mate, te kawenga ora, te kawenga hau, te kawenga hukarere, me te mahi rū whenua. Mō ngā awheawhe ahumahi, ko te kawenga ora o te tuanui kei waenga i te 0.3 ki te 0.5 kN/m². He maha ngā wā ka taka ngā uara pēhanga hau i waenga i te 0.3 me te 0.8 kN/m² i runga i te whenua.
Ka pā tika te kōwhiringa wāhanga ki te haumaru me te ōhanga. He maha ngā wā ka whakahaerehia e ngā miihini te piko o te kurupae i roto i te L/250 me te ōwehenga angiangi o te pou i raro i te 150. Mō ngā anga tatau, ko te ōwehenga pakari o te kurupae-ki-pou kei waenga i te 0.6 ki te 0.8 hei whakarite i te tohatoha momi pumau.
Me aro nui ki te hoahoa hononga. Ko ngā pūtu kaha teitei o ngā taumata 8.8, 10.9 rānei te nuinga o ngā kaupapa hou. Ka tutuki i ngā hononga ātete-paheke te tauwehenga waku o te 0.45–0.55 i muri i te maimoatanga mata tika. Ko ngā hononga whakarewa he tikanga e whakamahi ana i te whakarewa hau CO₂, e whakarite ana i te kaha whakarewa neke atu i te 90% o te kaha whakarewa turanga.
He mea nui tonu te hoahoa ārai ahi. Ka ngaro te 50% o te kaha o te rino i te pāmahana tata ki te 550°C. Ka taea e ngā paninga ātete ahi me te matotoru o te 2–5 mm te whakarato i ngā whakatauranga ātete ahi o te 1.5–3.0 hāora. Mā tēnei tikanga ka tutuki i te nuinga o ngā ture hanga whare ā-ahumahi.
Ngā Wāhanga Hanga me ngā Wāhanga Mana Kounga
Ko te kounga teitei o te hanganga maitai e whakawhirinaki ana ki te hanga wāhanga tika. Me tutuki ngā pereti maitai mata i ngā paerewa pēnei i te ASTM A36, EN S355 rānei. Mā te whakahaere i te hanganga matū ka noho tonu te ihirangi waro i raro i te 0.25%, ka pai ake te kaha ki te whakarewa.
Ka pā tika te tika o te tapahi ki te kounga o te huihuinga. Ka whakahaerehia e ngā mīhini tapahi mura, plasma rānei CNC ngā ātete ā-ahu i roto i te ±1.0 mm. Mō ngā pereti matotoru neke atu i te 20 mm, ko ngā koki piko i te nuinga o te wā kei waenga i te 30° ki te 35° hei whakarite kia uru pai te whakarewa.
Ko te kounga o te whakarewa e whakatau ana i te pono o te hanganga. Ko ngā kaiwhakarewa whaimana e whai ana i ngā tikanga WPS me te tino tika. Ko te whakamātautau kore-whakangaro e kapi ana i te iti rawa 20% o ngā hononga whakarewa tuatahi i roto i ngā kaupapa paerewa. He maha ngā wā ka hiahiatia he whakamātautau ultrasonic 100% mō ngā hononga nui. Me tutuki ngā taumata hapa e whakaaetia ana ki te ISO 5817 Taumata B.
Ka tiakina te maitai mai i te waikura e te maimoatanga mata. Ka eke te pupuhi pupuhi ki te taumata Sa2.5, e tango ana i te neke atu i te 95% o ngā poke mata. Ko te nuinga o ngā pūnaha paninga ārai-waikura ka eke ki te matotoru katoa o te kiriata maroke o te 120–200 μm. Mā tēnei maimoatanga ka neke atu te roa o te ora ratonga i te 25 tau i roto i ngā taiao ahumahi noa.
Ka whakakotahi ngā whare hanganga rino i te kaha, te whai huatanga, me te pumau ki roto i te otinga hanga matatau kotahi. Ka tutuki i ngā momo hanganga rerekē ngā tono kaupapa rerekē. Ka whakarite te hoahoa pūtaiao me te hanga wāhanga tino pakari i te haumaru me te pakari. Me ngā reiti hangarua neke atu i te 90% me ngā huringa hanga tere, ka noho tonu ngā hanganga rino hei rangatira mō te whanaketanga whare hou o te ao.
Wā tuku: Hanuere-12-2026