Question

As per IS 800:2007, shear lag effects in flanges may be disregarded for internal elements if

(a) bi ≤ L0 / 10

(b) bi ≤ L0 / 20

(c) bi > L0 / 10

(d) bi = L0 / 20

This question was addressed to me in an interview.

Enquiry is from Design Strength of Laterally Supported Beams topic in section Design of Beams of Design of Steel Structures

Answer 1

Correct answer is (a) bi ≤ L0 / 10

For explanation: As per IS 800:2007, shear lag effects in flanges may be disregarded for internal elements if bi ≤ L0 / 10, where bi = width of internal element, L0 = length between points of zero moment in the span.