I ka nui o nā ʻoihana, hoʻohana ʻia nā paipu kila square.Ke piʻi nei ka hana ʻana o kēia ʻano paipu i kēlā me kēia lā.Me ka hoʻohālikelike i nā paipu kila poepoe, ʻoi aku ka maikaʻi o nā paipu kila square.ʻO ke kumu, ʻoi aku ka maikaʻi o ke kolamu huinaha ma mua o ke kolamu pōʻai paʻa.

I loko o kahi kiʻi ākea kuʻuna, no nā lālā lāʻau, hoʻohana ʻia nā lālā o ka ʻāpana hollow.Ma ka ʻāpana hui, ma ke kuʻi ʻana ma ka ʻaoʻao o ka pihi, ua hui ʻia nā lālā o ka pā.No laila, lōʻihi loa kēia kaʻina hana a me he mea lā paʻakikī.No ka maʻalahi o ka pilikia, hoʻohana ʻia nā paipu kila square.Hoʻohana ʻia nā paipu kila square i kahi hoʻonohonoho kūikawā.ʻO nā ʻaoʻao kū pololei ʻelua o nā paipu kila huinahā ʻelua, ua hoʻolikelike ʻia ma ke kū pololei a kūlike me ka mokulele o nā kino kiʻi.I kēia hihia, ma ka hoʻoheheʻe ʻana, ua hoʻohui ʻia nā ʻāpana keʻa o nā lālā lāʻau ma kahi laina weld pōkole

ʻEkolu mau ʻano o ka ʻenehana hana ʻana o ka paipu kūhā like ʻole: ʻōwili wela, huki anu a welded.No ke anuanu huki huinaha paipu, ka hiki o ka withs localized concentrated haawe mea nawaliwali, ka welding kaʻina hana paipu welds i ka nawaliwali loulou, mai pili i ke kukulu ana o kiʻekiʻe-hope hale noho.I kēia manawa, hoʻohana ka mea hoʻohana kūloko i ka hana ʻana i ka pahu anu a i ʻole welded tube.ʻOiai ka haole e hoʻohana nui i ke kaʻina ʻōwili wela, hiki ke hoʻokō i nā koi o nā hale kiʻekiʻe.ʻO ka hana kiʻekiʻe wela-rolled seamless square tube kūkulu ʻia me nā waiwai lawe maikaʻi, weldability maikaʻi, nā kumukūʻai haʻahaʻa a me ka hana kiʻekiʻe.

Ua hoʻomaopopo ʻia ʻo ka puʻupuʻu kuʻekuʻe wela i ʻōwili ʻia ma muli o kāna mau hiʻohiʻona ponoʻī, e hoʻopuni pono i ka pilina ma waena o ke kolamu a me ka beam welding defects a alakaʻi i ka degradation hana, hiki ke hoʻomaikaʻi nui i ka pilikia o ka haʻahaʻa haʻahaʻa o ka haʻahaʻa haʻahaʻa. hale paʻa, haumia nui, hoʻopau waiwai a me nā pilikia ʻē aʻe;i ka manawa like, ʻo ka huahana me ka hana maikaʻi e like me ka ikaika like ʻole, ka pololei kiʻekiʻe kiʻekiʻe, ka ikaika kiʻekiʻe a me ke kūpaʻa hopena maikaʻi, hiki ke hoʻomaikaʻi i ke kūpaʻa seismic o ka hoʻolālā kiʻekiʻe, e hoʻohana nui ʻia i nā hale kiʻekiʻe kila, nā mokulele a me nā hana ʻē aʻe, a ua lilo ia i mea kākoʻo nui o ka ʻoihana kūkulu i ka wā e hiki mai ana, me nā manaʻo mākeke nui.I kēia manawa, ua hoʻokomo ʻia kēia paipu kila maʻemaʻe ma ka mākeke a hoʻohana nui ʻia i nā hale kiʻekiʻe.