Tsarin karfedaidaitaccen kayan gini ne da aka yi daga wasu ma'auni na ƙarfe kuma ya zo a cikin kewayon ma'auni na ma'auni na masana'antu (ko "profiles").Tsarin ƙarfe maki an ɓullo da tare da takamaiman sinadaran abun da ke ciki da inji Properties tsara don takamaiman aikace-aikace.
A Turai, karfen tsari dole ne ya bi ka'idodin TuraiEN 10025, wanda Kwamitin Turai na Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙira (CEN) ke gudanarwa.
Akwai misalai da yawa na matakan ƙirar tsarin Turai, kamar S195, S235, S275, S355, S420 da S460.A cikin wannan labarin, za mu mayar da hankali a kan sinadaran abun da ke ciki, inji Properties da aikace-aikace na S235, S275 da S355, uku na kowa tsarin karfe maki amfani a daban-daban gine-gine ayyukan a cikin Tarayyar Turai.
Dangane da rarrabuwar ka'idar Eurocode, dole ne a keɓance ƙarfe na tsari ta daidaitattun alamomi ciki har da amma ba'a iyakance ga S, 235, J2, K2, C, Z, W, JR da JO ba, inda:
Dangane da tsarin masana'anta, abun da ke tattare da sinadarai, da aikace-aikacen da ke da alaƙa, ana iya amfani da ƙarin haruffa da rarrabuwa don gano takamaiman ƙimar ƙarfe ko samfur.
Rarraba EU ba daidaitattun duniya ba ne, don haka ƙila a yi amfani da maki da yawa masu dacewa tare da sinadarai iri ɗaya da kayan inji a wasu sassan duniya.Misali, karfen tsarin da aka samar don kasuwar Amurka dole ne ya cika buƙatun Ƙungiyar Gwaji da Kayayyakin Amurka (ASTM).Lambobin ƙasa da ƙasa suna farawa da "A" suna biye da aji masu dacewa, kamar A36 koA53.
A yawancin ƙasashe, ƙarfe na tsarin yana da tsari kuma dole ne ya cika ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun sifofi, girman, haɗin sinadarai da ƙarfi.
Haɗin sinadarai na ƙarfe na tsari yana da mahimmanci kuma yana da tsari sosai.Wannan shi ne babban abin da ke ƙayyade kayan aikin injiniya na karfe.A cikin teburin da ke ƙasa zaku iya ganin matsakaicin matakan kaso na wasu abubuwa masu daidaitawa waɗanda ke cikin ƙirar ƙirar ƙirar Turai S235,S275da S355.
Abubuwan da ke tattare da sinadarai na karfen tsarin yana da matukar mahimmanci kuma an daidaita shi sosai.Yana da mahimmancin mahimmanci wanda ke ƙayyade kayan aikin injiniya na karfe.A cikin teburin da ke ƙasa zaku iya ganin matsakaicin kaso na wasu abubuwan da aka kayyade a cikin matakan ƙirar ƙarfe na tsarin Turai S235, S275 da S355.
Abubuwan sinadaran karfen tsarin suna da matukar mahimmanci ga injiniyoyi kuma zasu bambanta daga matsayi zuwa matsayi dangane da amfanin da aka yi niyya.Misali, S355K2W karfe ne mai tauri, wanda ake magana da shi a matsayin K2, tare da sinadarin sinadaran da aka ƙera don juriya na yanayi - W. Don haka, tsarin sinadari na wannan tsarin ƙarfe ya ɗan bambanta da daidaitattun daidaito.Babban darajar S355.
The inji Properties na tsarin karfe karkashin rarrabuwa da aikace-aikace.Kodayake abun da ke tattare da sinadarai shine babban abin da ke ƙayyade ƙayyadaddun kayan aikin ƙarfe, yana da mahimmanci a san ƙananan ma'auni don kayan aikin injiniya ko aiki, kamar ƙarfin yawan amfanin ƙasa da ƙarfin ƙarfi, kamar yadda aka bayyana dalla-dalla a ƙasa.
Ƙarfin tsarin ƙarfe yana auna mafi ƙarancin ƙarfin da ake buƙata don ƙirƙirar nakasar dindindin a cikin ƙarfe.Yarjejeniyar suna da aka yi amfani da ita a cikin ma'auni na Turai EN10025 yana nufin mafi ƙarancin ƙarfin samar da ƙimar ƙarfe da aka gwada a kauri 16 mm.
Ƙarfin ƙaƙƙarfan tsarin ƙarfe yana da alaƙa da ma'anar da lalacewa ta dindindin ta faru lokacin da kayan da aka shimfiɗa ko kuma aka shimfiɗa ta hanyar wucewa tare da tsawonsa.
Ƙarfe na tsari yana zuwa da maki iri-iri, amma galibi ana sayar da shi an riga an ƙirƙira shi cikin takamaiman siffa ta ɓangaren giciye da aka ƙera don takamaiman aikace-aikace.Misali, karfen tsarin da ake siyar dashi azaman I-beams, Z-beams, lintels akwatin, sassan tsarin sassa (HSS), L-beams, da faranti na karfe sun zama gama gari.
Dangane da aikace-aikacen da ake so, injiniyan injiniya yana ƙayyade ƙimar ƙarfe - yawanci don saduwa da ƙaramin ƙarfi, matsakaicin nauyi, da yuwuwar buƙatun yanayi-da kuma sifar sashe-dangane da wurin da ake buƙata da kayan da ake tsammani ko kaya.aikin da za a yi.
Tsarin karfe yana da aikace-aikace da yawa, kuma aikace-aikacen sa sun bambanta.Suna da amfani musamman yayin da suke ba da haɗin gwiwa na musamman na kyakkyawan weldability da ƙarfin garanti.Ƙarfe na tsari samfuri ne mai sauƙin daidaitawa wanda injiniyoyi ke son haɓaka ƙarfi ko sifofi S yayin rage nauyinsu.
Lokacin aikawa: Afrilu-13-2023