Consider the built-up column made of two l-sections as shown in the figure, with each batten plate bolted to a component l-section of the column through 6 black bolts. Each connection of the batten plate with the component section is to be designed for a longitudinal shear of 70 kN and moment of $10 \mathrm{kN} . \mathrm{m}$. The minimum bolt value required (in kN ) is __________ (rounded off to the nearest integer).
Consider the beam $A C D E B$ given in the figure. Which of the following statements is/ are correct:
For the beam and loading shown in the figure, the second derivative of the deflection curve of the beam at the mid-point of $A C$ is given by $\frac{\alpha M_0}{8 E I}$. The value of $\alpha$ is _________ (rounded off to the nearest integer).
Consider the frame shown in the figure under the loading of $100 \mathrm{kN} . \mathrm{m}$ couples at the joints B and G. Considering only the effects of flexural deformations, which of the following statements is/are true:
