Question

The splicing of a column becomes necessary, where 
1. The available length of structural steel section is less than the required length of the column
2. Section remains same throughout at all floors
3. Only riveted columns are to be designed
4. Splices should be designed to carry axial loads only

Answer 1

Correct Answer - Option 1 : The available length of structural steel section is less than the required length of the column

Concept:

Splicing of Column: Splicing is nothing but joining of same material in successive runs along their lengths. The length of structural steel members as available in the market or site is limited up to 15 m maximum or even less. So whenever available length structural steel section is less than required length of the column splicing becomes necessary.

Splicing of column is necessary in the following cases:

• A. When the available length of structural steel section is less than the required length of the column.
• B. In case of multi-storey buildings, the section of column required for the various storeys may be different.
• C. In multi-storeyed buildings, for convenience of fabrication it is kept at about 5 m lengths. So, splicing of column is necessary to join the fabrication along the length.