Question

The design load for combination of dead and live load is 450 kN. If Live load = 180 kN and wind load = 100 kN , find the design load as per limit state of collapse

• A. 450 kN
• B. 420 kN
• C. 480 kN
• D. 330 kN

Answer 1

The correct option is C 480 kN

Design Load = 450 kN = 1.5 (DL+LL)
For DL and LL

Live load = LL = 180 kN

Wind Load = WL = 100 kN

$DL+LL=\frac{450}{1.5}=300$

$DL=300-LL=120kN$

$\text{Design load}=max\left[\begin{array}{c}1.5(DL+LL)=450kN\\ 1.2(DL+LL+WL)=1.2(300+100)=480kN\end{array}\right]$

$=480kN$