If the section is sufficiently reinforced, it will provide warnings before these types of column failure.It will be a sudden crushing of concrete. When the axial stress exceeds a certain amount resulting in concrete strain grater than 0.0035 concrete will fail suddenly. As per the British standards, concrete is capable of carrying a strain up to 0.0035 and steel starts yielding at a strain of 0.002 and it can increase greater than the concrete. Further, the reinforcement and concrete have their own stain that they can bear.If axial stress is greater than that capacity column will fail in compression. Reinforcement and concrete have certain capacity based on there amount and area of the section.These types of failure could be due to the following reasons. The column can fail in compress due to the increase of the axial stress than its capacity. Reinforcement is also provided to columns where it is not possible concrete to carry the whole load or as nominal reinforcements. The column is an element that transfers the weight of a structure as axial stress to the foundation or supporting element.Ĭoncrete is capable of carrying the compressive load is dominant in carrying loads whereas in other elements such as beams compressive stress is taken only by part of the section. Failures due to errors in the Construction.Failure due to Lack of Confinement Reinforcement.The following types of column failure could be identified. Therefore, it is very important to identify the critical column and pay attention to them during design and construction. Therefore, the failure of columns shall be avoided than any other element.įurther, the failure of the column could lead to the progressive collapse of the structure. Failure of a column could lead to the failure of the whole structure. The column is the main element that carries the vertical loads to the foundation. Types of column failure depend on the type of structural system and columns can fail in different modes as discussed in this article.