Question

According to IS: 800-2007, the lacing bars in a steel column should resist a transverse shear equal to .........

• A. 2.5% of the axial load in the member
• B. 5% of the axial load in the member
• C. 7.5% of the axial load in the member
• D. 10% of the axial load in the member

Hint:

Remember, 2.5% axial load resistance by lacing bars is as per IS: 800-2007 for steel built-up members. Always verify code clauses for such design-specific data.

Answer 1

The Correct Option is A

According to IS: 800-2007, which governs the general construction in steel, lacing bars are provided to resist the transverse shear forces that develop between individual components of built-up columns.
Clause 7.7.2.3 of IS: 800-2007 specifies that the transverse shear force to be resisted by the lacing system shall not be less than 2.5% of the axial force in the built-up member. \[ \text{Required Shear Resistance} = 2.5% \times \text{Axial Load} \] This requirement ensures that the lacing system can maintain the alignment and force distribution among the column components.