Columns are typically used to support beams and spandrels in applications such as parking structures and precast concrete structural systems. They usually are designed as multilevel components ranging from a single story to six levels or even more.
They can be made in a long-line pretensioning facility and reinforced with prestressing strand or cast in individual forms with either prestressing strand or conventional rebar. They are cast in a horizontal position and rotated to their final position at the jobsite by the erection crew.
Sizes and shapes vary to satisfy both architectural and structural requirements. They usually are cast in a square or rectangular form in sizes from 12 by 12 inches to 24 by 48 inches.
Since columns are cast in a horizontal position, three of the four sides are created with a form. These finishes are very smooth and most often remain “as cast” in the finished construction. The fourth side is typically troweled to match the other three sides as closely as possible.
For more information, contact a PCI Certified Manufacturer.