FIGURE 2.17 (Continued)
x
Rectangle:
width (y)
variable, depth
(h) constant
Plan:
two parabolas
with vertices at
center of span
y=
y b
y
b
h
l
2
Elevation:
rectangle
3 P x –
Ssh^2
b=^3 Pl
4 Ssh^2
x^2
l
Beam Cross section Formulas
Elevation
and plan
- Supported at Both Ends, Load P Uniformly Distributed Over l
61