Izinhlobo zase-Europe ezijwayelekile ze-H-beam i-HEA ne-HEB inomehluko omkhulu ekubunjweni kwezigaba ezihlukene, usayizi kanye nokusetshenziswa.
Uchungechunge lwe-HEA
I-HEA iyi-flange ebanzi egoqelwe ngokushisayoI-H-beamngokwendinganiso yaseYurophu, enomumo we-cross-sectional shape "H", ubuso obusebenzayo obubili obuhambisanayo (amawebhu) kanye namapuleti amabili e-flange. I-HEA yohlobo lwe-H-beam ibonakala ngama-flange amancane nokuphakama okukhulu, okwenza ifaneleke izikhathi ezinezikhathi ezinkulu zokugoba, njengamabhuloho, izakhiwo eziphakeme, njll.1. Ngokukhethekile, izinsimbi zochungechunge lwe-HEA zivame ukusetshenziselwa izakhiwo ezidinga amandla aphezulu nokuqina, njengamafreyimu okwakha asebenza kahle ngaphansi kokubili kwemithwalo eqondile nevundlile.
HEB uchungechunge
Ngokuphambene, uhlobo lwe-HEB H-beam nalo luyi-hot-rolled ribbed wide-flange H-beam ngaphansi kwezinga laseYurophu, kodwa izici zalo zihlukile kune-HEA. Indawo ephambanayo yohlobo lwe-HEB H-beam ingase ibe ncane kancane kune-HEA, kodwa ububanzi bayo be-flange banzi futhi iwebhu ishubile, okunikeza uhlobo lwe-HEB lwe-H-beam ukusebenza okungcono kokucindezela futhi ifanele izimo zohlelo lokusebenza ezidinga ukuqina okukhulu kwe-flange2. Lokhu kusho ukuthi kwezinye izimo, nakuba i-okuphambeneindawo ye-HEB incane, inganikeza ukwesekwa okuqinile ngenxa yokuvuleka kwayo okubanzi kanye newebhu ewugqinsi.
1. Ubukhulu be-cross-sectional nezici zejometri
•HEA series (H-beam engasindi)
▪Ama-flange amancane namancane (ama-flange) nolwembu oluncane (amapuleti aqondile amaphakathi).
▪Isisindo esikhanyayo ngobude beyunithi ngayinye kanye nendawo encane ephambanayo.
▪ Umzuzu ophansi uma kuqhathaniswa we-inertia (ukumelana nokugoba) kanye ne-section modulus, efanele izimo zomthwalo ophakathi nendawo.
•HEB uchungechunge (i-H-beam evamile)
▪Ama-flange abanzi futhi ashubile kanye namawebhu aminyene.
Isisindo seyunithi ephakeme futhi sandise kakhulu indawo ephambanayo.
▪ Umzuzu ophakeme we-inertia kanye ne-modulus yesigaba, ukugoba okunamandla nokumelana nokucindezela, kulungele izakhiwo zomthwalo osindayo.
3. Izakhiwo zemishini kanye nezimo zohlelo lokusebenza
HEA
▪Ifanele imithwalo elula ukuya emaphakathi, njengamafreyimu ezitshalo alula, amapulatifomu amancane noma izakhiwo ezingathwali.
▪Umnotho omuhle, ukonga izindleko zezinto ezibonakalayo.
HEB
▪Isetshenziswa ezimeni ezinemithwalo esindayo, njengemishayo emikhulu yebhuloho, amakholomu ezakhiwo eziphakeme noma izisekelo zemishini esindayo.
▪Ukuqina nokuqina okuphezulu, kodwa izindleko zempahla eziphakeme.
4. Olunye uchungechunge lwe-European H-beam
▪Uchungechunge lwe-HEM: ama-flange aminyene nama-web, aklanyelwe imithwalo enzima (njengezisekelo ezisindayo zemishini yezimboni).
▪Uchungechunge lwe-IPN/IPE: Lufana ne-HEA/HEB, kodwa lunomklamo we-flange ofanayo (akukho mthambeka ohlangothini olungaphakathi lwe-flange).
Izindawo zokufaka izicelo
Ngenxa yomehluko ezicini ezingenhla, ukusetshenziswa kwe-HEA ne-HEB yohlobo lwe-H-imishayo kubunjiniyela bangempela nakho kugxile ezicini ezahlukene. I-HEA H-beam ifaneleka kakhulu ezindaweni ezidinga ukuqina okuphezulu namandla aphezulu, njengesistimu yokusekela isisekelo sezakhiwo ezinkulu noma ishubhu eliwumgogodla lezakhiwo eziphakeme. I-HEB H-beam, ngenxa yobubanzi bayo be-flange enkudlwana kanye newebhu ewugqinsi, isebenza kahle kakhulu uma ingaphansi kwengcindezi enkulu. Ngakho-ke, kuvame ukusetshenziswa esakhiweni sesisekelo semishini esindayo noma izitshalo zezimboni ezinezidingo eziphakeme zokuthwala umthamo.
Isikhathi sokuthumela: Feb-20-2025
