Published Paper Details:

In the modern era the demands of high-rise are greater than earlier due to the provision that the number of satisfactory people can be accommodated in that but the inappropriate design may lead to catastrophic demolition or destruction of the structure which is obvious from the earlier few decades. When horizontal loading acts on a building, causing it to deflect, the resulting eccentricity of the gravity loading from the inclined axes of the structure's vertical members causes the lateral displacements of the structure and the moments in the members to increase. This second-order effect is termed the P-delta effect. In heavily clad low- and medium-rise structures, the P-delta effects are small enough to be neglected. However, with the trend toward taller and lightly clad buildings with greater lateral flexibility, the P-delta effects become more significant. In some cases, the P-delta effects are large enough to require an increase in the designed member sizes. In an extreme case of a very flexible structure with a large gravity loading, the P-delta effects could, if not accounted for, be severe enough to initiate collapse. Thus, in the design of any high-rise building, it is important to assess whether these second-order effects are significant and, if so, to account for them in the analysis and design.