Question

Dead load, live load ,wind load and earthquake load at service conditions on a $RC$ beam are $10$ $kN/m$; $8$ $kN/m$, $12$ $kN/m$ and $15$ $kN/m$ respectively. The design load under limit state of collapse.

• A. $27$ $kN/m$
• B. $33$ $kN/m$
• C. $37.5$ $kN/m$
• D. $396$ $kN/m$

Answer 1

The correct option is D $396$ $kN/m$

Design load is maximum of

1. 1.5(D.L.+ L.L.) = 1.5(10+8) $=27$ $kN/m$.

2. 1.5 DL + 1.5 max(WL or EL) = 1.5(10+15) $=37.5$ $kN/m$.

3. 1.2(D.L. + L.L. + max(WL or EL)) = 1.2(10+8+15) $=39.6$ $kN/m$.