I roto i ngā mahi hanga whare o ēnei rā, he mea nui te rino, he mea nui hoki mō ngā mahi katoa mai i ngā whare teitei ki ngā huarahi piko. Nā ōna āhuatanga ā-tinana ahurei, he mea nui tēnei hei whakarite i te haumaru me te pakari o te whare.
Ko te rebar, te ingoa noa mō ngā pae rino rara wera-hurihia, i ahu mai tōna ingoa i te mata rara. He porowhita te nuinga o tōna wāhanga whakawhiti, me ngā rara roa e rua me ngā rara whakawhiti e ōrite ana te tawhiti i tōna roanga. He āhua marama te āhua o ngā rara whakawhiti, ā, kāore e tūtaki ki ngā rara roa. Ehara i te mea ka whakapakari noa tēnei kakano mata ahurei i te hononga i waenga i te rebar me te raima, engari ka whakanui ake hoki i tōna kaha kume me te pumau whānui i roto i ngā hanganga whare. Ko te tikanga he mea hanga te rebar mai i te rino hanganga waro, i te rino hanganga iti-koranu rānei, ā, he whānui ngā diameter, mai i te 6 mm ki te 50 mm, kia rite ki ngā whakaritenga whare.
He tino pai ngā āhuatanga ā-pūkaha o te rino whakarewa, e whakamahi ana i ngā āhuatanga ā-pūkaha o te rino i te wā e pēhia ana, ā, he pai ake i te rino whakarewa noa. Ka tukatukahia tōna mata kia hanga he paparanga waikura matotoru, e ātete ana ki te waikura, ā, ka roa ake tōna roa mahi. Ka taea hoki te tapahi ngāwari ki ngā roa e hiahiatia ana mā te miihini, kia māmā ake ai ngā mahi hanga.
He maha ngā momo whakarōpūtanga o te rino whakarewa. E ai ki te paerewa Hainamana (GB1499), e toru ngā momo o te rino whakarewa e hāngai ana ki te kaha (pūnga hua/kaha kume): HRB335, me te kaha o te 335 MPa, e tika ana mō ngā hanganga whare whānui; HRB400, me te kaha o te 400 MPa, e tika ana mō ngā hanganga e pikau ana i ngā kawenga nui ake; me HRB500, me te kaha o te 500 MPa, e tuku ana i te kaha kume me te kaha hurihuri tino teitei, e tika ana mō ngā kaupapa hangarau motuhake. Ka taea te wehewehe i te rino whakarewa ki ngā momo hurihuri wera me te hurihuri matao i runga i tōna tikanga whakaputa. Ka hangaia te rino whakarewa wera mai i ngā rau maitai whakarewa tonu, i te hurihuri tuatahi rānei, e tuku ana i ngā painga pēnei i te kaha teitei, te ngāwari pai, me te piri pai ki te raima. Ko te rino whakarewa matao, i tetahi atu taha, ka hangaia mai i ngā koiri hurihuri wera, ka whakatōkia hei tango i te unahi, kātahi ka hurihia matao. E whakaatu ana hoki i te kaha teitei, te ngāwari pai, me te kaha here kaha ki te raima. E ai ki te whakamahinga, ka taea te wehewehe ki te rino noa mō te raima whakapakari me te rino wera-maimoatia mō te raima kua whakapakeketia.
E whakamahia ana te rino whakapūmau i roto i ngā momo mahi hanga me te hangarau. I roto i ngā hanganga hanga, e whakamahia whānuitia ana hei whakapakari me te hono i ngā kurupae, ngā pou, ngā pereti, me ētahi atu wāhanga o ngā hanganga raima whakapakari, hei whakarei ake i tō rātou pumau me te kaha ki te pikau kawenga. I roto i te hangarau ā-iwi, ka mahi hei rauemi whakapakari me te hononga i roto i ngā piriti, ngā kauhanga, me ngā huarahi tere, hei whakapai ake i tō rātou pumau me te ātete rū whenua. I roto i te hangarau rerewē, ka whakamahia hei whakau me te hono i ngā rēri, kia pai ai te mahi. I roto i te maina, ka whakamahia pinepine hei rauemi whakapakari me te tautoko, hei tautoko i ngā tuanui me ngā pakitara o te maina. Ka whakamahia anō hoki i roto i ngā whakapaipai whare hei hanga i ngā taonga whakapaipai pēnei i ngā ringaringa, ngā reri, me ngā arawhata, e whakakotahi ana i te ataahua me te pakari.
Me whakarite kia haere tonu te mahi hanga rebar i waenga i ia tukanga. Ko te tikanga, ka wehea te tukanga ki te hanga rino, te hanga maitai matua, me te whakaoti. Ko ngā hangarau whakaputa matua ko te maimoatanga wera i muri i te hurihuri, te hanga maitai pai, te tapahi me te hurihuri, me te hurihuri kore kōhao.
He tūranga nui anō hoki tō te rebar i roto i te mākete. He tohu matua tēnei mō te whanaketanga o te umanga hanga, ā, he pānga tika tōna ki ngā kamupene o runga me raro i roto i te mekameka umanga maitai nā te pikinga o ngā utu. Mō ngā kaihanga maitai, ko te pikinga o ngā utu rebar ka hua ake he hua nui ake; mō ngā kamupene hanga o raro me ngā kaiwhakawhanake whenua, ka pā tika ngā pikinga o ngā utu ki ngā utu hanga. I te tau 2023, i piki haere ngā utu rebar o tōku whenua i waenga i te 3,600 me te 4,500 yuan/tana, ā, i eke ki tōna taumata teitei i waenganui o Poutū-te-rangi. Mai i te mutunga o Poutū-te-rangi ki te mutunga o Mei, i heke iho ngā raraunga whenua i ngā tumanakohanga o te mākete. I te taha o te hekenga whānui o ngā utu waro ā-rohe whai muri i te whakangāwaritanga o te raruraru pūngao o tāwāhi, i tere te hekenga o ngā utu rebar. I te marama o Whiringa-ā-rangi, he maha ngā kaupapa here, tae atu ki ngā mea e pā ana ki ngā here kāwanatanga tiriona-yuan me ngā whenua, i tino whakanui ake i te wairua o te mākete, ā, i arahi ki te hokinga mai o ngā utu rebar. I taua wā, nā te pai o te rangi i te mākete tonga i arahi ai ētahi mahi tere, engari kei te kaha tonu te tono whānui. I te marama o Tīhema, nā te pikinga o ngā utu rauemi mata me ngā kaupapa here ōhanga whānui, i piki haere ngā utu o te rino rebar ki te 4,100 yuan/tana, ā, i eke ki te 4,090.3 yuan/tana i te 29 o Tīhema.
He tūāpapa pakari te rino whakarewa mō ngā kaupapa hanga, ā, e tiaho ana i roto i ngā momo mara maha nā ōna āhuatanga ahurei, e awe ana i te whanaketanga o te umanga hanga. Ka whanake tonu me ngā whanaketanga hangarau me te whanaketanga o te umanga.
Wā tuku: 18 o Ākuhata 2025