He rerekētanga nui tō ngā momo hihi-H paerewa o Ūropi, arā, ko te HEA me te HEB, i roto i te āhua, te rahi me te whakamahinga.
Raupapa HEA
He whānui te flange hurihuri-wera a HEA.H-hikuI roto i te paerewa Pākehā, he āhua "H" te āhua o te whakawhiti-wāhanga, e rua ngā mata mahi whakarara (ngā tukutuku) me ngā pereti flange e rua. Ko te momo HEA H-beam he kuiti ngā flange me te teitei nui, e pai ai mō ngā wā he nui ngā piko, pērā i ngā piriti, ngā whare teitei, me ētahi atu.1. Ina koa, ko ngā maitai raupapa HEA ka whakamahia mō ngā hanganga e hiahia ana ki te kaha me te pakari teitei, pērā i ngā anga whare e pai ana te mahi i raro i ngā kawenga poutū me te whakapae.
Raupapa HEB
He rerekē, ko te momo kurupae H-HEB he kurupae H-whānui, he rara wera, i raro i te paerewa Pākehā, engari he rerekē ōna āhuatanga i te HEA. Tērā pea he iti ake te horahanga whakawhiti o te momo kurupae H-HEB i tō te HEA, engari he whānui ake tōna whānui, ā, he matotoru ake te tukutuku, e pai ake ai te mahi pēhi a te momo kurupae H-HEB, ā, he pai hoki mō ngā āhuatanga tono e hiahia ana kia nui ake te pakari o te kurupae2. Ko te tikanga o tēnei i ētahi wā, ahakoa tewhakawhiti-wāhangaNā te iti ake o te horahanga o te HEB, ka kaha ake te tautoko nā te whānui o te flange me te matotoru o te tukutuku.
1. Ngā ine whakawhiti-wāhanga me ngā āhuatanga āhuahanga
•Raupapa HEA (rama-H māmā)
▪He whāiti, he angiangi hoki ngā papa (papa) me ngā tukutuku angiangi (ngā pereti poutū o waenganui).
▪He mama te taumaha mō ia wae roa, he iti hoki te horahanga whakawhiti.
▪He iti te ātete piko me te modulus wāhanga, he pai mō ngā āhuatanga kawenga waenga.
•Raupapa HEB (hihiko-H paerewa)
▪He whānui ake, he matotoru ake ngā parirau me ngā tukutuku matotoru ake.
▪He taumaha ake te waeine, ā, he nui ake te horahanga whakawhiti-wāhanga.
▪He nui ake te kaha o te nekehanga o te inertia me te modulus wāhanga, he kaha ake te ātete ki te piko me te pēhanga, he pai mō ngā hanganga taumaha
3. Ngā āhuatanga miihini me ngā horopaki tono
HEA
▪He pai mō ngā kawenga māmā ki te rahi, pērā i ngā anga tipu māmā, ngā papa iti, ngā hanganga kore-kawenga rānei.
▪He pai te ōhanga, he penapena utu rauemi.
HEB
▪E whakamahia ana i roto i ngā āhuatanga taumaha, pērā i ngā kurupae matua o te piriti, ngā pou whare teitei, ngā tautoko mīhini taumaha rānei.
▪He pakari ake, he kaha ake, engari he nui ake te utu o ngā rauemi.
4. Ētahi atu raupapa hihi-H o Ūropi
▪Raupapa HEM: ngā papa me ngā tukutuku matotoru ake, i hangaia mō ngā kawenga taumaha (pērā i ngā turanga taputapu ahumahi taumaha).
▪Raupapa IPN/IPE: He rite ki te HEA/HEB, engari he hoahoa flange whakarara (kāore he pari i te taha o roto o te flange).
Ngā wāhi tono
Nā te rerekētanga o ngā āhuatanga o runga ake nei, ko te whakamahinga o ngā kurupae H momo HEA me te momo HEB i roto i te hangarau tūturu e aro ana ki ngā āhuatanga rerekē. He pai ake te kurupae H HEA mō ngā wāhi e hiahia ana kia tino pakari me te kaha, pērā i te pūnaha tautoko turanga o ngā whare nui, te ngongo matua rānei o ngā whare teitei. Nā te whānui o te flange me te matotoru o te tukutuku, ka tino pai te mahi a te kurupae H HEB ina pāngia e ngā kawenga pēhanga nui. Nō reira, he maha ngā wā ka whakamahia i roto i te hanganga turanga o ngā mīhini taumaha, o ngā whare ahumahi rānei me ngā whakaritenga teitei ake mō te kaha kawe.
Te wā tuku: 20-Pepuere-2025
