Assignment $2$:

A prestressed posttensioned rectangular beam is required to carry the uniformly distributed

loads $($a$)$ and $($b$)$ positioned as shown in Figure $16\mathrm{.}6(1)$ either simultaneously or

independently. Obtain suitable sectional dimensions $(b$~~$\frac{D}{3})$ and sketch the limiting zone

for the prestressing cable giving the necessary values of the eccentricities. Assume $c=14$

MPa,$c_t=1\mathrm{.}5$MPa,$=0\mathrm{.}80$ and ${}_v=23k\frac{N}{m^3}.$

Figure $16\mathrm{.}6(1)$ Load configuration and sectional details of a simple beam with overhang