Amakuru - Ubwubatsi-Icyiciro cya H-beam: Umushoferi wibanze yongerera ingufu inganda nziza

Vuba aha, hamwe n’iterambere rikomeje gutera imbere mu mijyi no kwihutisha imishinga y’ibikorwa remezo, icyifuzo cy’ibyuma byubaka bikora neza cyiyongereye. Muri bo,H-beam, nkibintu byingenzi bitwara imitwaro mubikorwa byubwubatsi, byahindutse umushoferi wingenzi mugutezimbere iterambere ryiza ryiterambere ryinganda zubwubatsi, hamwe nibikoresho byiza byubukanishi hamwe nibintu byinshi bikoreshwa biganisha ku isoko rishya ku isoko.

Mu mushinga munini munini wo guturamo muremure muburasirazuba bwubushinwa, icyiciro cyaHEB 150 H-ibitivuba aha yashyizwe mubikorwa nyamukuru byubaka. Nkurugero rusanzwe rwiburayi H-beam, HEB 150 itoneshwa ninzego zubwubatsi kubishushanyo mbonera byacyo, guhangana gukomeye hamwe nubushobozi buhamye bwo gutwara imitwaro. Umuyobozi mukuru w’umushinga yagize ati: "Ugereranije n’ibice by’ibyuma gakondo, HEB 150 irashobora kugabanya umubare w’iteraniro ry’iteraniro ku kigero cya 30% mu gihe cyo kubaka, bikagabanya cyane igihe cyo kubaka mu gihe umutekano w’imiterere". Iyi porogaramu ntabwo igenzura gusa agaciro keza k’ibicuruzwa bisanzwe H-beam mu iyubakwa ry’imiturire, ahubwo inatanga umurongo ngenderwaho wo kuzamura ibyuma bisanzwe byinganda mu nganda.

Mugihe icyitegererezo gisanzwe gikoreshwa cyane,ibicuruzwa byinshi-H-beam ibicuruzwaihagarariwe naASTM A572-50 H.barimo kwihutisha kwinjira mubikorwa byingenzi. Byumvikane ko ibiti bya ASTM A572-50 H bifite ubukana buhebuje bwo hasi yubushyuhe no kurwanya ruswa, kandi imbaraga zabyo zishobora kugera kuri 345MPa, ikaba ikwiriye cyane cyane mumahugurwa manini manini, ibiraro byimihanda nindi mishinga ifite ibyangombwa byinshi byubatswe. Kugeza ubu, mu iyubakwa ry’ikiraro cyambukiranya imigezi mu Bushinwa bw’Amajyepfo, ibiti bya ASTM A572-50 H byakoreshejwe mu miyoboro minini ya truss, bikemura neza ikibazo cyo guhangana n’umuvuduko mu bihe bigoye by’ikirere no guharanira ubuzima bwa kiraro.

Byongeye,ASTM A572-50 ubugari bwa flange, nkibicuruzwa biva muri H-beam, byongereye kwagura ibikorwa bya H-beam mubikorwa byubwubatsi. Nubugari bwagutse bwa flange, ubu bwoko bwibiti birashobora gukwirakwiza neza umutwaro no kunoza imiterere yimiterere. Yakoreshejwe cyane mu iyubakwa ry’inganda nini n’ubucuruzi n’inganda mu myaka yashize. Umuntu ushinzwe uruganda rukora ibyuma yagize ati: "Mu gice cya mbere cy’uyu mwaka, ingano y’ibicuruzwa bya ASTM A572-50 yagutse yiyongereyeho 40% umwaka ushize, kandi ibicuruzwa na byo byoherezwa ku masoko yo mu majyepfo y’iburasirazuba bwa Aziya, biba ingingo nshya y’ubucuruzi bwohereza ibicuruzwa hanze."

Abashinzwe inganda bagaragaje ko iterambere ryihuse rya H-beam yo kubaka ritagaragaza gusa kuzamura inganda z’ubwubatsi zikenera ibyuma byujuje ubuziranenge, ahubwo binateza imbere ikoranabuhanga mu nganda z’ibyuma. Mu bihe biri imbere, hamwe no gukomeza kunoza ibipimo ngenderwaho by’igihugu ku nyubako z’icyatsi n’ubwubatsi bwa karuboni nkeya, ibicuruzwa bya H-beam bifite imikorere myiza, kurengera ibidukikije no gutandukana bitandukanye bizagira uruhare runini mu kuzamura iterambere ryiza ry’inganda zubaka.