Qabow barbaro bir laba jibbaaran

Bir afar gees ah oo qabow la sawiray
Bir labajibbaaran ee qaboow-jiidaan ah waxa loola jeedaa birta qabow-jiiday oo leh qaab labajibbaaran oo been abuur ah
Bir labajibbaaran ee qaboow-jiidaan ah waxa loola jeedaa birta labajibbaaran ee qabow,
Birta qaboojiso waa in si qasab ah loo fidiyo birta birta ee xaaladaha heerkulka caadiga ah iyadoo culeyska xajinta uu dhaafo xoogga dhibicda asalka ah ee birta birta, si birta birta ay u noqoto mid caag ah si loo gaaro ujeeddada kordhinta xoogga dhibicda dhalidda ee birta birta iyo badbaadinta birta.
Birta qaboojiso waa isticmaalka tignoolajiyada extrusion qabow si ay uga soo saarto bir wareegsan oo sax ah oo kala duwan, bir laba jibaaran, bir fidsan, birta laba geesoodka ah iyo birta qaabaysan ee kale iyada oo loo marayo caaryada saxda ah.
Fikradda baararka birta ee qabow-jiidka ah: Ujeedada badbaadinta birta iyo hagaajinta xoogga wax-soo-saarka birta, habka loo kala bixiyo birta birta ee culeyska culeyska leh ee ka sarreeya xoogga dhalidda laakiin waa ka yar yahay xoogga ugu dambeeya ee keena cilladda caagga ah waxaa loo yaqaannaa birta qabow-jiiday.

Bir laba jibaaran oo aan bir lahayn
Bir laba jibaaran oo aan bir lahayn
[square steel] la rogmaday ama lagu habeeyey qayb labajibbaaran
Bir laba jibaaran oo aan bir lahayn

Xisaabinta miisaanka birta aragtida
Halbeegga cabbiraadda xisaabinta miisaanka aragtida birta waa kiiloogaraam (kg).
Qaabka aasaasiga ah waa: W (miisaanka, kg) = F (aagga istallaabta mm2) × L (dhererka, m) × ρ (cufnaanta, g/cm3) × 1/1000