According to IS 800:2007, what is the reduction factor for a long joint (βlj) when the length of the joint (lj) is 250 mm and the nominal diameter of the bolt (d) is 22 mm?

A steel structure is subjected to a dead load of 40 kN (inclusive of self-weight), live load of 20 kN, wind load of 60 kN and earthquake load of 100 kN. As per IS: 800-2007 for the limit state of strength, the maximum design load for the structure is:

A Fe 410 steel beam is subjected to a maximum bending moment of 250 kNm. Find the required plastic section modulus Zp using the necessary partial factor of safety for materials (γm0 = 1.10) as per IS 800:2007.