Iintlobo ze-H-beam ezisemgangathweni zaseYurophu i-HEA kunye ne-HEB zinomahluko omkhulu kwimilo, ubungakanani kunye nokusetyenziswa kwazo.
Uthotho lwe-HEA
I-HEA yiflange ebanzi ejikelezileyo eshushuUmqadi we-Hkumgangatho waseYurophu, onemilo enqamlezileyo efana no-"H", ubuso obubini obusebenza ngaxeshanye (iiwebhu) kunye neepleyiti ezimbini zeflange. Uhlobo lwe-HEA H-beam luphawulwa ziiflanges ezimxinwa kunye nokuphakama okukhulu, okwenza ukuba ifaneleke kwiimeko ezinexesha elikhulu lokugoba, njengeebhulorho, izakhiwo eziphakamileyo, njl.njl.1. Ngokukodwa, iintsimbi ze-HEA series zihlala zisetyenziselwa izakhiwo ezifuna amandla aphezulu kunye nokuqina, ezifana nezakhelo zokwakha ezisebenza kakuhle phantsi kwemithwalo ethe nkqo nethe tye.
Uthotho lwe-HEB
Ngokwahlukileyo koko, uhlobo lwe-HEB H-beam lukwayi-H-beam ebanzi ene-ribbed ribbed eshushu phantsi komgangatho waseYurophu, kodwa iimpawu zayo zahlukile kwi-HEA. Indawo enqamlezileyo yohlobo lwe-HEB H-beam inokuba ncinci kancinci kune-HEA, kodwa ububanzi bayo be-flange bubanzi kwaye i-web ityebile, nto leyo enika uhlobo lwe-HEB H-beam ukusebenza ngcono kokucinezela kwaye ifanelekile kwiimeko zokusetyenziswa ezifuna ukuqina okukhulu kwe-flange2. Oku kuthetha ukuba kwezinye iimeko, nangonaamacandelo anqamlezileyoIndawo ye-HEB incinci, inokubonelela ngenkxaso enamandla ngenxa ye-flange yayo ebanzi kunye newebhu etyebileyo.
1. Ubukhulu obunqamlezileyo kunye neempawu zejiyometri
•Uthotho lwe-HEA (ukukhanya kwe-H-beam)
▪Iiflanges ezimxinwa nezincinci (iiflanges) kunye neewebs ezibhityileyo (iipleyiti eziphakathi ezithe nkqo).
▪Ubunzima obuphantsi ngobude beyunithi nganye kunye nendawo encinci enqamlezileyo.
▪Ixesha eliphantsi kakhulu lokungashukumi (ukumelana nokugoba) kunye ne-section modulus, ezifanelekileyo kwiimeko zomthwalo ophakathi.
•Uthotho lwe-HEB (umqadi we-H oqhelekileyo)
▪Iiflange ezibanzi nezityebileyo kunye neeweb ezityebileyo.
▪Ubunzima beyunithi ephezulu kunye nokwanda okukhulu kwendawo enqamlezileyo.
▪Umzuzu ophezulu we-inertia kunye ne-section modulus, ukugoba okunamandla kunye nokumelana nokucinezelwa, kufanelekile kwizakhiwo ezithwala imithwalo enzima
3. Iimpawu zoomatshini kunye neemeko zesicelo
I-HEA
▪Ifanelekile kwimithwalo elula ukuya kwephakathi, njengezakhelo zezityalo ezilula, amaqonga amancinci okanye izakhiwo ezingathwali mithwalo.
▪Uqoqosho oluhle, ukonga iindleko zezinto eziphathekayo.
I-HEB
▪Isetyenziswa kwiimeko ezinzima, ezifana neebhari eziphambili zeebhulorho, iintsika zesakhiwo eziphakamileyo okanye izixhaso zoomatshini abanzima.
▪Ukuqina namandla aphezulu, kodwa iindleko zezinto zokwakha ziphezulu.
4. Olunye uthotho lwe-H-beam yaseYurophu
▪Uthotho lweHEM: iiflange ezijiyileyo kunye neeweb, ezenzelwe imithwalo enzima (njengeziseko zezixhobo zoshishino ezinzima).
▪Uthotho lwe-IPN/IPE: Lufana ne-HEA/HEB, kodwa lunoyilo lweflange oluhambelanayo (akukho thambeka kwicala elingaphakathi leflange).
Iindawo zokusetyenziswa
Ngenxa yokwahluka kweempawu ezingentla, ukusetyenziswa kwe-HEA kunye ne-HEB uhlobo lwe-H-beams kubunjineli bokwenyani kukwagxila kwiinkalo ezahlukeneyo. I-HEA H-beam ifanelekile ngakumbi kwiindawo ezifuna ukuqina okuphezulu kunye namandla aphezulu, njengenkqubo yokuxhasa isiseko sezakhiwo ezinkulu okanye ityhubhu engundoqo yezakhiwo eziphakamileyo. I-HEB H-beam, ngenxa yobubanzi bayo obukhulu beflange kunye newebhu etyebileyo, isebenza kakuhle kakhulu xa iphantsi kwemithwalo yoxinzelelo olukhulu. Ke ngoko, isetyenziswa rhoqo kwisakhiwo sesiseko soomatshini abanzima okanye izityalo zoshishino ezineemfuno eziphezulu zokuthwala.
Ixesha leposi: Februwari-20-2025
