1. Ngā Kurupae Whānui ASTM A36
I te mea ko te maitai waro paerewa te maitai ASTM A36, he pai te kaha ki te whakarewa, ā, he iti hoki te utu. He tino pai tēnei momo maitai mō te whakamahinga whānui i roto i te hanganga, ā, kāore e hiahiatia kia tino kaha. He rauemi whānui te whakamahinga o te A36 mōNgā kurupae H 150 x 150meNgā kurupae H 300 x 300me ētahi atu nā te mea he ngāwari ki te huri wera, ā, he maha ngā whakamahinga.
2.ASTM A572-50 Ngā Kurupae Whānui
Ko tēnei maitai whakarewa iti-koranu he maitai hanganga e rite ana ki te maitai waro A36, ā, he kaha ake tōna, e pai ai te whakamahi i roto i ngā tono maha atu, pērā i te hanganga piriti, i ngā whare maha-papa rānei. Ko ngā kurupae whānui Astm A572-50 he mea tino pai mō te hanganga piriti me te anga o ngā whare teitei. He kaha pai me te pakari pai hei whakarato i te whanonga pai i raro i te kawenga.
3.ASTM A992 Ngā Kurupae Whānui
Ko ngā kurupae whānui ASTM A992 he mea hanga whare waro i Amerika Te Raki ināianei, he mea tino pai mō ngā anga maitai hanganga. Nā te mea he nui ake te ōwehenga kaha-ki-taumaha, he pai te kaha ki te whakarewa me te ātete teitei ki te piko, kua kitea e ngā kurupae A992 tō rātou tūranga i roto i ngā hanganga hou maha. Ahakoa kei te hoko koe i te kurupae H maitai hurihuri wera, i te kurupae H rāneiNgā Rahi o te Kurupae Hme hiahia motuhake rāneiNgā Ahu o te H-Rangi, He pono te kounga o te A992.
