Torsion in building
What is torsion? Today we will talk about the effects of torsion in the civil engineering field. Torsional force affects not only the civil engineering structures but also other mechanical structures too. What causes the torsion? Basically, torsion is caused by the force called torque on the free end of the structure when the other end is fixed. In buildings, torsion is created when the center of mass and center of stiffness (rigidity) doesn’t coincide. The distance between these two points is referred as torsion eccentricity. The lateral load acts on the centre of mass and the opposing force acts through centre of stiffness. Due to this a couple is developed which tries to twist the building. Hence whenever we design a building either manually or using software we must check the torsional eccentricity. Center of mass is generally the geometric center of the floor or building. Location of the center of stiffness depends upon characteristics of the components of the late...