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Types of Columns Based on the Type of Reinforcement Based on the reinforcement, different types of columns are used in their construction. In this classification, we have 3 types of columns: tied columns, spiral columns and composite columns.

Reinforced concrete (RC) columns are key components in building structures and bridges, and it is greatly related with the overall safety of the structure/bridge. Normally, there exist three major failure modes (FMs) for RC columns, i.e., flexure failure (FF), shear failure (SF), and flexure-shear failure (FSF).

Short columns have a slenderness ratio of less than 32. Such columns are always subjected to direct compressive stress only. The medium column slenderness ratio is between 32 to 120. Long columns have a slenderness ratio of more than 120.

Columns transfer vertical loads from a ceiling, floor or roof slab or from a beam, to a floor or foundation. They also carry bending moments about one or both of the cross-section axes.

Composite columns are a type of reinforcement column made of structural steel, concrete and reinforcement. They have a high load-carrying capacity and provide longitudinal reinforcement, and construction works often use them in high-rise building construction.

Classification of Columns based on Cross Section Square Column. Rectangular Column. Circular Column. Hexagonal Column. T, L or + Shaped Columns.

A Column may be rectangular, square, circular or polygon in cross section. A Column may be short or long column depending on its effective slenderness ratio. A short column has a maxm slenderness ratio of 12.

A column may be classified as follows, based on type of loading: Axially loaded columns. Eccentrically loaded columns.

Four data classifications are used by the university: Controlled Unclassified Information, Restricted, Controlled and Public. The Data Trustee is ultimately responsible for deciding how to classify their data (see Roles and Responsibilities for list of Data Trustees and additional information).

SQL Data Type is an attribute that specifies the type of data of any object. Each column, variable and expression has a related data type in SQL. You can use these data types while creating your tables. You can choose a data type for a table column based on your requirement.