Shear walls are vertical elements that apart from their ability to bear vertical loads, they also limit the horizontal deformations of the structural frame. The term “shear wall” refers to any vertical element with a length to thickness ratio of 4 or more.
In order for a shear wall to behave in the required way, it must have two columns embedded inside its ends (boundary elements).
In case the shear wall does not dispose of clearly defined, normal columns at its ends, two hidden columns are formed using appropriate reinforcement at the edges of the wall’s mass. Their width is equal to the shear wall’s thickness and their length must be at least equal to one and a half times the wall’s thickness (≥ 1.5b).