Kumenyekanisha icyuma cya Larsen

NikiUrupapuro rw'icyuma?
Mu 1902, injeniyeri w’umudage witwa Larsen yabanje gukora ubwoko bwikirundo cyicyuma gifite U cyambukiranya U kandi gifunga kumpande zombi, cyakoreshejwe neza mubuhanga, kandi cyiswe "Urupapuro rwinshi.

Ikariso ya Larsen ikirundo ni urwego mpuzamahanga rusanzwe, ubwoko bumwe bwikirundo cyicyuma cya Lassen cyakozwe mubihugu bitandukanye gishobora kuvangwa mumushinga umwe. Igicuruzwa cyibikoresho byicyuma cya Larsen cyashyizeho ingingo zisobanutse nubunini ku bunini bwambukiranya imipaka, uburyo bwo gufunga, imiterere yimiti, imiterere yubukanishi hamwe nubuziranenge bwibikoresho, kandi ibicuruzwa bigomba kugenzurwa cyane muruganda. Kubwibyo, icyuma cya Larsen ikirundo gifite ibyiringiro byiza hamwe nubukanishi, kandi birashobora gukoreshwa inshuro nyinshi nkibicuruzwa, bifite inyungu zidasubirwaho muguhuza ubwubatsi no kugabanya ibiciro byumushinga.

 

Ubwoko bwibikoresho bya Larsen

Ukurikije ibice bitandukanye by'ubugari, uburebure n'ubugari, ibirundo by'ibyuma bya Larsen birashobora kugabanywa muburyo butandukanye, kandi ubugari bukomeye bwikirundo kimwe cyibikoresho bisanzwe bikoreshwa mu byuma bikoreshwa cyane cyane bifite ibisobanuro bitatu, aribyo 400mm, 500mm na 600mm.
Uburebure bwa Tensile Steel Sheet Pile burashobora gutegurwa no kubyazwa umusaruro ukurikije umushinga ukenewe, cyangwa birashobora kugabanywa mubirundo bigufi cyangwa gusudira mubirundo birebire nyuma yo kugura. Iyo bidashoboka gutwara ibirundo birebire by'ibyuma ahantu hubatswe kubera ko ibinyabiziga n'imihanda bigarukira, ibirundo by'ubwoko bumwe birashobora kujyanwa ahazubakwa hanyuma bigasudwa kandi bikaramba.
Ibikoresho by'ibikoresho bya Larsen
Ukurikije imbaraga z'umusaruro wibikoresho, amanota yibikoresho byamabati ya Larsen yujuje ubuziranenge bwigihugu ni Q295P, Q355P, Q390P, Q420P, Q460P, nibindi, kandi bihuye nibipimo byabayapani niSY295, SY390, nibindi byiciro bitandukanye byibikoresho, usibye ibigize imiti, birashobora no gusudwa no kuramba. Ibyiciro bitandukanye byibikoresho usibye imiti itandukanye, ibipimo byubukanishi nabyo biratandukanye.

Bikunze gukoreshwa Larsen ibyuma byerekana ibirundo hamwe nibikoresho bya mehaniki

Bisanzwe	Ibikoresho	Gutanga umusaruro N / mm²	Imbaraga zingana N / mm²	Kurambura %	Ingaruka zo gukuramo akazi 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	——