In the adjacent beam, the maximum shear force is

This question was previously asked in

CGPSC Civil Official Paper 1 (Held on April 2014 - Shift 1)

- ax
- 2ax
- ax/2
- ax/4
- 4ax

Option 1 : ax

Free

ST 1: Solid Mechanics

1232

20 Questions
40 Marks
20 Mins

**Explanation:**

Due to symmetry,

\({R_1} = {R_2} = 2ax\)

Sign convention for shear force,

From left end,

SF just left of A = -ax

SF just right of A = -ax + R_{1} = -ax + 2ax = ax

SF at C = -2ax + 2ax = 0

SF just left of B = -3ax + 2ax = -ax

SF just right of B = -3ax +2ax + R_{2} = -ax + 2ax = ax

**Hence, the maximum shear force is ax.**

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