The best-suited rolled steel section for a tension member is
| The best-suited rolled steel section for a tension member is
A. angle section
B. T-section
C. channel section
D. flat section
Please scroll down to see the correct answer and solution guide.
Right Answer is: D
SOLUTION
Concept:
The suitability of rolled steel sections for tension members is governed by shear lag effect.
Shear lag is the non-uniform straining of member due to tension and it occurs when action and reaction do not pass through the centre of gravity of cross section.
For sections other than plates like angles, I sections, T-sections, Channel-sections Shear Lag effect occurs which in turn reduces the tensile carrying capacity.
∴ The best-suited rolled steel section for a tension member is flat section, where no shear lag occurs.