a$($m$)=3\mathrm{.}0$

b$($m$)=5\mathrm{.}0$

c$($m$)=4\mathrm{.}0$

permanent load PL$1($kN$)=40$

Variable load PL$1($kN$)=50$

$$

Permanent Load PL$2($kN$)=70$

Variable Load PL$2($kN$)=90$

Note: design load $=1\mathrm{.}35*$permanent load$+1\mathrm{.}5$ variable load

Proposed size sectionnsize UKB$=533$x$210$x$109$

a$)$calculate design load, reaction at supports, the maximum shesr force and bending moment on the beam

answer:

design reaction at A$=173\mathrm{.}3$kN

Design reaction D$=185\mathrm{.}3$kN

Design Moment @B$=519\mathrm{.}8$kNm

Design Moment @C$=741\mathrm{.}0$kNm

Max Design Shear$=185\mathrm{.}3$kN