Influence of Post-Elastic Range Bidirectional Interaction for Various Angles of Incidence of Ground Motions on One-Story Asymmetric Structures
Md Ahsaan Hussain, Sekhar Chandra Dutta, Sreekanta Das, Parthasarathi Mandal
Abstract
The effect of the angle of incidence of ground motion on an asymmetric structure is recognized to be significant. However, the previous studies considered only shear wall-type elements for analyses with in-plane stiffness. These models did not capture the bidirectional structural response exhibited by column-type elements, especially in the inelastic range. A detailed investigation has been undertaken to evaluate the effect of angle of incidence on asymmetric structures considering bidirectional interaction arising in the post-yield behaviour of such lateral load-resisting elements. The study shows that bidirectional interaction is a critical design consideration for asymmetric structures.