What is the primary function of columns in concrete frame construction?

In concrete frame construction, columns serve a critical role in maintaining the structural integrity of the building. Their primary function is to support loads from above, including the weight of the floors, roof, and any additional loads such as furniture and equipment. This load-bearing capability allows the building to stand safely and ensures that the weight is evenly distributed down to the foundation.

Columns are strategically placed within the framework of the structure to optimize stability and support, making them essential components that allow for the open spaces between them that are characteristic of concrete frame construction. They help to define the structural grid that controls the overall strength and performance of the building.

The other choices relate to different aspects of building design but do not align with the fundamental purpose of columns. For instance, insulation and airflow pertain to comfort and energy efficiency rather than structural support, while partitions primarily serve to divide space within a building rather than support loads from above.