Kopnes aprēķins un dimensionēšana

BALSTA REAKCIJAS
∑MA=40∙6+4∙6∙24+60∙24+(4∙6)/2∙18+(4∙6)/2∙30-VB∙36
VB=(240+576+1440+216+360)/36=78,667kN
∑MB=VA∙36-40∙30-(4∙6)/2∙18-4∙6∙12-(4∙6)/2∙6-60∙12
VA=(1200+216+288+72+720)/36=69,333kN
∑Y=78,667+69,333-60-40-24-12-12=0
PIEPŪĻU NOTEIKŠANA PLAKANĀS KOPNĒS
∑Y=VA+NA-1∙sin15,52°
NA-1=VA∙sin15,52°=-259,11kN
∑X=NA-6+NA-1∙cos15,52°
NA-6=-NA-1∙cos15,52°=249,62kN…