Objective Question & Answer

Consider the following statements for the design of a laced column:

1. In a bolted construction, the minimum width of the lacing bar shall be three times the

nominal diameter of the end bolt.

2. The thickness of the flat of a single lacing system shall be not less than one-fortieth of its effective length.

3. The angle of inclination of the lacing bar should be less than 40° with the axis of the built-up column

4. The lacing shall be designed for a transverse shear of 2.5% of the axial load on the column

Which of the above statements are correct?