GATE Civil Engineering (CE) 2021 Shift 1 Solved Paper

Employ stiffness matrix approach for the simply supported beam as shown in the figure to calculate unknown displacements/rotations. Take length, L = 8 m; modulus of elasticity, E = 3 × 10⁴ N/mm², moment of inertia, I = 225 × 10⁶ mm⁴

The mid - span deflection of the beam (in mm, round off to integer) under P = 100 kN in downward will be ____.