Understanding Column Splices for Equal Depth Sections

Column splices are connections used to join two columns end-to-end. The question asks about the components used when the depths of the two column sections being joined are equal.

Analyzing Splice Plate Functions

Let's examine the roles of the plates mentioned in the options:

• Filler Plates: These are used primarily to fill gaps or ensure full contact under bearing loads. They are often necessary when joining column sections of different sizes or shapes, or when the ends do not meet perfectly flush.
• Bearing Plates: Typically, bearing plates are used at the base of a column to distribute its load onto the foundation, or sometimes at the top to receive loads from beams. They are not generally considered the main components for creating the splice connection between two column sections themselves.

Column Splices with Equal Depths

When the depths of two column sections are equal and their ends are machined for a good fit:

• Direct bearing between the column ends is possible.
• Splices usually involve connecting plates, such as cover plates (on flanges) and web plates, or end plates welded to the column ends. These are then fastened with bolts or welds.
• Filler plates are not inherently required if the ends meet properly.
• Bearing plates are not the typical components used for the splice connection itself.

Given these standard practices, splices for equal depth columns rely on components like cover plates or end plates, rather than primarily filler or bearing plates.

Conclusion on Splice Components

Since filler plates are mainly for gaps (less common in equal, well-fitted sections) and bearing plates are usually for foundation connections, the options provided (filler plates, bearing plates, or both) do not accurately describe the standard components for a splice connection between equal depth column sections. Therefore, the correct choice is that none of the listed options are universally or primarily required.