PURLIN - BENDING DIVERSED -
Static calculations
* * *
OBJECT:
n° decimal =
INSERT DATA
for decimals put the point
q =
daN/m
L =
cm
= section profile inclination =
degrees
Jx = moment of inertia around x =
cm
4
Jy = moment of inertia around y
cm
4
Wx = resistance modulus around x
cm³
Wy = resistance modulus around y =
cm³
E = elasticity module
daN/cm²
f permissible = L /
cm
permissible Tension =
daN/cm²
RESULTS
sen
=
///
cos
=
///
qx = q cos
=
daN/m
qy = q sin
=
daN/m
Ra = Rb = q l/2 =
daN
Rb = Ra =
daN
Mx = qx L²/8 =
daNm
My = qy L²/8 =
daNm
Ta = Ra =
daN
Tb = - Rb =
daN
= Max Tension detected =
Mx/Wx + My/Wy =
daN/cm²
f = arrow found =
cm
fx = 5 qx L
4
/384 E Jx =
cm
fy = 5 qy L
4
/384 E Jy =
cm
resulting arrow = fx + fy
cm
permissible arrow =
cm
1 daN = 1 Kg
