A cantilever beam of span 2.5m carries three point loads of 1kN, 2kN, and 3kN at 1m, 1.5m, and 2.5m from the fixed end. Draw S.F.D. and B.M.D.

461views

written 5.6 years ago by

teamques10 ★ 69k

I. To calculate reaction at support A

$\Sigma \mathrm{Fy}=0$

$\mathrm{R}_{\mathrm{A}}-1-2-3=0$

$\mathrm{R}_{\mathrm{A}}=6 \mathrm{kN}$

II. SF calculation:

$SF at A=+6 \mathrm{kN}$

$\mathrm{C}_{\mathrm{L}}=+6 \mathrm{kN}$

$\mathrm{C}_{\mathrm{R}}=+6-1=5 \mathrm{kN}$

$\mathrm{D}_{\mathrm{L}}=+5 \mathrm{kN}$

$\mathrm{D}_{\mathrm{R}}=+5-2=3 \mathrm{kN}$

$\mathrm{B}_{\mathrm{L}}=+3 \mathrm{kN}$

$\mathrm{B}=+3-3=0(\therefore \mathrm{ok})$

III. BM calculation:

$\begin{aligned} \mathrm{BM} \text { at } \mathrm{B} &=0 \quad \because \mathrm{B} \text { is free end. …

Create a free account to keep reading this post.

and 5 others joined a min ago.

ADD COMMENT EDIT