Izinhlobo ze-H-beam ezijwayelekile zaseYurophu i-HEA ne-HEB zinomehluko omkhulu ngesimo, usayizi kanye nokusetshenziswa kwezingxenye ezihlukene.
Uchungechunge lwe-HEA
I-HEA iyi-flange ebanzi egoqekile eshisayoUkukhanya kwe-Hngokwezinga laseYurophu, ngesimo se-cross-section esimise okwe-"H", ubuso obubili obusebenzayo obuhambisanayo (ama-web) kanye nama-flange plate amabili. Uhlobo lwe-HEA H-beam lubonakala ngama-flange amancane nokuphakama okukhulu, okwenza lufaneleke ngezikhathi ezinezikhathi ezinkulu zokugoba, njengamabhuloho, izakhiwo eziphakeme, njll.1. Ngokukhethekile, izinsimbi zochungechunge lwe-HEA zivame ukusetshenziselwa izakhiwo ezidinga amandla aphezulu nokuqina, njengezinhlaka zokwakha ezisebenza kahle ngaphansi kwemithwalo eqondile nevundlile.
Uchungechunge lwe-HEB
Ngokuphambene nalokho, uhlobo lwe-HEB H-beam luphinde lube yi-H-beam ebanzi ene-ribbed ribbed ngaphansi kwezindinganiso zaseYurophu, kodwa izici zalo zihlukile ku-HEA. Indawo enqamulelayo yohlobo lwe-HEB H-beam ingaba yincane kancane kuneye-HEA, kodwa ububanzi be-flange yayo bubanzi futhi iwebhu ikhulu, okwenza uhlobo lwe-HEB H-beam lusebenze kangcono ngokucindezela futhi lufanele izimo zohlelo lokusebenza ezidinga ukuqina okukhulu kwe-flange2. Lokhu kusho ukuthi kwezinye izimo, nakubaizingxenye eziwela phansiIndawo ye-HEB incane, inganikeza ukwesekwa okuqinile ngenxa ye-flange yayo ebanzi kanye ne-web ejiyile.
1. Ubukhulu obuhambisana nesigaba kanye nezici zejiyometri
•Uchungechunge lwe-HEA (ukukhanya kwe-H okulula)
▪Ama-flange amancane nanciphile (ama-flange) kanye nama-web amancane (amapuleti aphakathi nendawo aqondile).
▪Isisindo esincane ngobude beyunithi ngayinye kanye nendawo encane enqamula ingxenye.
▪Isikhathi esiphansi kakhulu sokungaguquguquki (ukumelana nokugoba) kanye ne-section modulus, efanelekile ezimweni zomthwalo ophakathi nendawo.
•Uchungechunge lwe-HEB (i-H-beam ejwayelekile)
▪Ama-flange abanzi futhi aqinile kanye nama-web aqinile.
▪Isisindo seyunithi esiphezulu kanye nendawo ebanzi kakhulu evukile.
▪Umzuzu ophezulu we-inertia kanye ne-section modulus, ukumelana okunamandla kokugoba nokucindezela, ofanele izakhiwo ezisindayo
3. Izakhiwo zemishini kanye nezimo zokusetshenziswa
I-HEA
▪Kufanelekela imithwalo elula kuya kwephakathi, njengezinhlaka zezitshalo ezilula, amapulatifomu amancane noma izakhiwo ezingathwali mithwalo.
▪Ukonga okuhle, konga izindleko zezinto zokwakha.
I-HEB
▪Kusetshenziswa ezimweni zemithwalo esindayo, njengemishayo emikhulu yamabhuloho, izinsika zesakhiwo eziphakeme noma izisekelo zemishini esindayo.
▪Ukuqina okuphezulu kanye namandla, kodwa izindleko zezinto zokwakha ziphezulu.
4. Olunye uchungechunge lwe-H-beam lwaseYurophu
▪Uchungechunge lwe-HEM: ama-flange amakhulu kanye nama-web, aklanyelwe imithwalo enzima (njengezisekelo zemishini yezimboni esindayo).
▪Uchungechunge lwe-IPN/IPE: Lufana ne-HEA/HEB, kodwa lunomklamo we-flange ohambisanayo (akukho ukuthambekela ohlangothini olungaphakathi lwe-flange).
Izindawo zokufaka isicelo
Ngenxa yokwehluka kwezici ezingenhla, ukusetshenziswa kwe-HEA kanye ne-HEB uhlobo lwe-H-beams kubunjiniyela bangempela kugxile nasezicini ezahlukene. I-HEA H-beam ifaneleka kakhulu ezindaweni ezidinga ukuqina okuphezulu namandla aphezulu, njengohlelo lokusekela isisekelo sezakhiwo ezinkulu noma ithubhu eliyinhloko lezakhiwo eziphakeme. I-HEB H-beam, ngenxa yobubanzi bayo obukhulu be-flange kanye ne-web ejiyile, isebenza kahle kakhulu uma ibhekene nemithwalo emikhulu yokucindezela. Ngakho-ke, ivame ukusetshenziswa esakhiweni sesisekelo semishini esindayo noma izitshalo zezimboni ezinezidingo eziphakeme zomthamo wokuthwala.
Isikhathi sokuthunyelwe: Feb-20-2025
