Nā PōmaikaʻiʻO ke kumu nui o ka ikaika kupaianaha. ʻOi aku ka ikaika tensile a me ka compressive o ke kila ma mua o nā mea e like me ka sima, a e liʻiliʻi ka ʻāpana o nā ʻāpana no ka ukana like; ʻo ke kaumaha ponoʻī o ke kila he 1/3 a 1/5 wale nō hapa o nā hale sima, hiki ke hōʻemi nui i nā koi o ka hiki ke hāpai i ke kumu, no laila kūpono loa ia no nā papahana ma nā kahua lepo palupalu. A ʻo ka lua, he kiʻekiʻe ka pono o ke kūkulu ʻana. Ma mua o 80% o nā ʻāpana hiki ke hana mua ʻia ma nā hale hana ma ke ʻano maʻamau a hōʻuluʻulu ʻia ma kahi ma o nā bolts a i ʻole ka weld, hiki ke hoʻohaʻahaʻa i ke kaʻina hana kūkulu no 30% ~ 50% ma luna o nā hale sima. A ʻo ke kolu, ʻoi aku ka maikaʻi ma ka anti-earthquake a me Green Building. ʻO ka paʻakikī maikaʻi o ke kila ʻo ia hoʻi hiki ke hoʻololi ʻia a omo i ka ikehu i ka wā o ka ōlaʻi no laila ʻoi aku ka kiʻekiʻe o kona pae kū'ē seismic; Eia kekahi, ʻoi aku ma mua o 90% o ke kila i hana hou ʻia, kahi e hōʻemi ai i ka ʻōpala kūkulu.
Nā hemahemaʻO ka pilikia nui, ʻo ia ke kūpaʻa ʻole i ka pala. ʻO ka hōʻike ʻana i ke kaiapuni haʻahaʻa, e like me ka pīpī paʻakai ma ke kahakai, ʻo ia ke kumu maoli o ka popo ʻana, a ukali pinepine ʻia e ka mālama ʻana i ka uhi anti-corrosion i kēlā me kēia 5-10 mau makahiki, kahi e hoʻonui ai i nā kumukūʻai lōʻihi. ʻO ka lua, ʻaʻole lawa kona kūpaʻa ahi; emi nui ka ikaika o ke kila ke ʻoi aku ka mahana ma mua o 600 ℃, pono e hoʻohana ʻia ka uhi pale ahi a i ʻole ka pale ahi e hoʻokō i nā koi pale ahi o nā hale like ʻole. Eia kekahi, ʻoi aku ke kiʻekiʻe o ke kumukūʻai mua; ʻo ke kumukūʻai o ke kūʻai ʻana a me ka hana ʻana i ke kila no nā ʻōnaehana hale ākea nui a kiʻekiʻe paha he 10%-20% kiʻekiʻe ma mua o nā hale sima maʻamau, akā hiki ke hoʻohālikelike ʻia ke kumukūʻai ola holoʻokoʻa e ka mālama kūpono a kūpono i ka wā lōʻihi.
