blob: f87b75a2e99a8bbc91559e6d226309deca4e52df (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
|
Df=100//in mm
bf=1500//in mm
bw=300//in mm
d=700//in mm
Ast=4510//in sq mm
fy=250//in MPa
fck=15//in MPa
Asf=round(0.36*fck*bf*Df/0.87/fy)//area of steel required for flange, in sq mm
//as Ast>Asf, Xu>Df
Xu=round((0.87*fy*Ast-0.446*fck*(bf-bw)*Df)/0.36/fck/bw)//in mm
Xc=0.531*d//Xc>Xu; hence OK
a=0.43*Xu//as Df>0.43 Xu, stress in flange is not uniform
yf=0.15*Xu+0.65*Df//in mm
Mu=(0.36*fck*bw*Xu*(d-0.416*Xu)+0.446*fck*(bf-bw)*yf*(d-yf/2))/10^6//in kN-m
mprintf("Moment of resistance of T-beam=%f kN-m",Mu)
|
