Intangiriro y'ikirundo cy'icyuma cya Larsen

Ni ikiIkirundo cy'icyuma cya Larsen?
Mu 1902, injeniyeri w’Umudage witwaga Larsen yakoze bwa mbere ubwoko bw’icyuma gifite igice cya U hamwe n’ingufuri ku mpera zombi, byakoreshejwe neza mu buhanga, kandi byitwa "Ikirundo cy'amabati ya Larsen" nk'uko izina rye ribivuga. Muri iki gihe, imigozi y'icyuma ya Larsen izwi ku isi yose kandi ikoreshwa cyane mu gushyigikira ibyobo by'ifatizo, mu buhanga bwo gukingira imyuzure, mu kurinda imyuzure n'indi mishinga.

Ikirundo cy'icyuma cya Larsen ni igipimo mpuzamahanga gihuriweho, ubwoko bumwe bw'ikirundo cy'icyuma cya Lassen gikorerwa mu bihugu bitandukanye bushobora kuvangwa mu mushinga umwe. Igipimo ngenderwaho cy'ibicuruzwa by'ikirundo cy'icyuma cya Larsen cyagaragaje neza amabwiriza n'ibisabwa ku bunini bw'ibice bihuriramo, imiterere y'ingufu, imiterere y'imiti, imiterere y'imashini n'amahame ngenderwaho y'igenzura ry'ibikoresho, kandi ibicuruzwa bigomba gusuzumwa neza mu ruganda. Kubwibyo, ikirundo cy'icyuma cya Larsen gifite ubwiza bwiza n'imiterere y'imashini, kandi gishobora gukoreshwa kenshi nk'ibikoresho byo guhindura ibintu, bifite inyungu zidasimburwa mu kwemeza ireme ry'ubwubatsi no kugabanya ikiguzi cy'umushinga.

 

Ubwoko bw'ibirundo by'icyuma bya Larsen

Dukurikije ubugari, uburebure n'ubugari bw'ibice bitandukanye, imigozi y'icyuma ya Larsen ishobora kugabanywamo ingero zitandukanye, kandi ubugari bufatika bw'umugozi umwe w'imigozi y'icyuma ikoreshwa cyane cyane bufite imiterere itatu, ari yo 400mm, 500mm na 600mm.
Uburebure bw'Ikirundo cy'Ibyuma Bikomeye bushobora guhindurwa no gukorwa hakurikijwe ibyo umushinga ukeneye, cyangwa bugacibwamo imigozi migufi cyangwa bugashyirwamo imigozi miremire nyuma yo kugura. Iyo bidashoboka gutwara imigozi miremire y'icyuma aho bubaka bitewe n'uko imodoka n'imihanda bidashobora kugabanuka, imigozi y'ubwoko bumwe ishobora kujyanwa aho bubaka hanyuma igashyirwamo imigozi ikanarekurwa.
Ibikoresho by'icyuma bya Larsen
Dukurikije imbaraga z'umusaruro w'ibikoresho, ingano y'ibikoresho bya Larsen steel sheet piles ijyanye n'ibipimo ngenderwaho by'igihugu ni Q295P, Q355P, Q390P, Q420P, Q460P, n'ibindi, kandi bigenewe ibipimo ngenderwaho by'Abayapani niSY295, SY390, n'ibindi. Ingano zitandukanye z'ibikoresho, uretse imiterere yabyo ya shimi, nabyo bishobora gusudira no kurengerwa. Ingano zitandukanye z'ibikoresho uretse imiterere itandukanye ya shimi, ibipimo byabyo bya mekanike nabyo biratandukanye.

Ingano y'ibikoresho by'icyuma bya Larsen bikunze gukoreshwa mu bijyanye n'ubuziranenge n'ibipimo bya mekanike

Igisanzwe	Ibikoresho	Umuvuduko w'umusaruro N/mm²	Imbaraga zo gukurura N/mm²	Kurekura %	Imirimo yo kwinjiza ingaruka J(0℃)
JIS A 5523 (JIS A 5528)	SY295	≥295	≥490	≥17	≥43
	SY390	≥390	≥540	≥15	≥43
GB/T 20933	Q295P	≥295	≥390	≥23	——
	Q390P	≥390	≥490	≥20	——