Gabatar da tarin takardar ƙarfe na Larsen

MeneneTarin takardar ƙarfe na Larsen?
A shekarar 1902, wani injiniya ɗan ƙasar Jamus mai suna Larsen ya fara samar da wani nau'in tarin ƙarfe mai siffar U da makullai a ƙarshen biyu, wanda aka yi nasarar amfani da shi a fannin injiniyanci, kuma aka kira shi "Larsen Sheet Pile"bayan sunansa. A zamanin yau, tarin takardar ƙarfe na Larsen an san su a duk duniya kuma ana amfani da su sosai a cikin tallafin ramin tushe, ma'ajiyar injiniya, kariyar ambaliyar ruwa da sauran ayyuka.

Tushen takardar ƙarfe na Larsen wani mizani ne na gama gari na duniya, ana iya haɗa nau'in tarin takardar ƙarfe na Lassen da aka samar a ƙasashe daban-daban a cikin aikin iri ɗaya. Ma'aunin samfurin tarin takardar ƙarfe na Larsen ya bayyana tanade-tanaden da buƙatu dalla-dalla kan girman sashe, salon kullewa, abubuwan da ke cikin sinadarai, halayen injiniya da ƙa'idodin dubawa na kayan, kuma dole ne a duba samfuran sosai a masana'anta. Saboda haka, tarin takardar ƙarfe na Larsen yana da ingantaccen tabbaci da halayen injiniya, kuma ana iya amfani da shi akai-akai azaman kayan juyawa, wanda ke da fa'idodi marasa maye gurbinsu wajen tabbatar da ingancin gini da rage farashin aikin.

 

Nau'ikan tarin takardar ƙarfe na Larsen

Dangane da faɗin sassa daban-daban, tsayi da kauri, ana iya raba tarin takardar ƙarfe na Larsen zuwa samfura daban-daban, kuma faɗin ingantaccen tarin takardar ƙarfe guda ɗaya da aka saba amfani da shi galibi yana da ƙayyadaddun bayanai guda uku, wato 400mm, 500mm da 600mm.
Ana iya keɓance tsawon Tarin Takardar Karfe mai ƙarfi da kuma samar da shi bisa ga buƙatun aikin, ko kuma a yanka shi gajerun tari ko a haɗa shi zuwa manyan tari bayan an saya. Idan ba zai yiwu a jigilar dogayen tari na ƙarfe zuwa wurin ginin ba saboda ƙarancin ababen hawa da hanyoyi, ana iya jigilar tarin irin wannan zuwa wurin ginin sannan a haɗa su da kuma tsawaita su.
Kayan aikin tara takardar ƙarfe na Larsen
Dangane da ƙarfin yawan amfanin kayan, ma'aunin kayan ƙarfe na Larsen waɗanda suka dace da ma'aunin ƙasa sune Q295P, Q355P, Q390P, Q420P, Q460P, da sauransu, kuma waɗanda suka dace da ma'aunin Japan suneSY295, SY390, da sauransu. Ana iya haɗa nau'ikan kayan aiki daban-daban, ban da sinadaran da suke da su, kuma ana iya haɗa su da tsayi. Ma'auni daban-daban na kayan aiki ban da nau'ikan sinadarai daban-daban, ma'aunin injina kuma sun bambanta.

Ana amfani da ma'aunin kayan ƙarfe na Larsen da aka fi amfani da su da kuma sigogin injina

Daidaitacce	Kayan Aiki	Matsi na Yawa N/mm²	Ƙarfin tauri N/mm²	Ƙarawa %	Aikin ɗaukar tasiri 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	——