Amabeamu e-H kanye ne-I (H-beams and I-beams) amagwedla ensimbi esakhiweni alenziwe kabukhali, akhonjiswe uma kulandela isivakalelo sokwazisa, ne-H-beams (okuyaziwa nange universal beams noma wide-flange beams) inesikali se-flange kanye ne-web elingana, inkosi i-I-beams ine-web elukhulu kunalesikhali se-flange. Lezi magwedla alenziwa ensimbi elenhlobonhlobo elukhulu yomzimba azothwele kabukhali futhi alunga ngemuva komqondo wamashini noma ukwakha kabukhali ukuze afinyelele ekuchazelekeni kokulingana kanye nompahla othwele kabukhali. Isambuo sesimbi siso siphakamise izinto ezifana nethusi, ikhabhoni, namanye amajozi athwele ekhiqiza amandla amancane kuqhathaniswe nesisindo, okwenza lawa magwedla abalulekile kwezenqubo zomalalwane ekuningile.
Amakhumalamelo a-wide flange H-beams, aziwa ngokubambisana njenge-H-piles noma amakhumalamelo omunzwane, yisichazi-mlobi sesitilini somububuzulu esinezakhiwo esinezisimo ze-H kuneziflangi ezithandekayo nomwandle omile obukhulu. Lawa makhumalamelo enziwe ngesitilini sombuthanzi sokukhanya okuhle, ngokuqonde, ekugcwaliseni i-ASTM A36, A572, noma i-European EN 10025 specifications. I-wide flange geometry inikeza amandla okuthwala okwe-strength-to-weight ratios ephakamekayo futhi ukusikisela okungunaphandle emakhumalamelo womabili, okuzikhetheke ngokuqonde emapulazini abucwaninga bomhlaba lapho amandla okuthwala nomqondo somububuzulu kuyiguqulo kubalulekile. Amaflangi abantu balindelele okukhaya okulula nokufakwa, habagade i-cross-section esimisiwe isigula ubuhlobo bomububuzulu obuzimele phansi kwamagunya agajana nokukhaba.
Amakhumalamelo okushintsha i-I-beams eyisisekelo esiyisisekelo somububuzulu obasebenziswa ngokubanzi kuphakamela amapulazini azinzima. Lawa makhumalamelo enyumba ikhona i-symmetrical H-shaped cross-section kuneziflangi ezikhanyele noma ezikhitheke ezisinqe, newebhu eyinethikhali yokulala. Enziwe ngekhabhoni ekhazimula noma isitilini se-alloy, amakhumalamelo e-I anikeza amandla okwe-strength-to-weight ratios ophakamekayo okubalulekile emapulazini okuthwala umthwalo kulomsebenzi omilalanga wombuthanzi. I-standardized geometry isigula ubuhlobo bomububuzulu obuzimele, ukulungile kwemthetho, futhi ukulingana nokushintsha engqondo ubucwaninga kulandelwe emapulazini, amapholisi omile, futhi ezakhiwon zokubulandelisisiwe.
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