Paper Contents
Abstract
In earthquake-resistant design of Reinforced Concrete (RC) frame multistoreyed buildings, identification of lateral force resisting system presents a major challenge. Certain structural elements are identified to carry the lateral forces generated during strong earthquake shaking. The stiffness and configuration of those identified elements play a major role in determining the design force levels in the elements. A symmetric five-storied RC frame building is designed against the earthquake load combinations, specified as per Indian Earthquake Code, namely IS:1893 (Part 1)-2002. All the frames along both the directions are expected to share the lateral forces as per the stiffness and configuration. Next, certain frames, more specifically the outer ones, are identified to carry the lateral forces, and subsequently, the frames are made stiffer. The consequence on design is studied by obtaining the required amount of reinforcement for the two cases of varying column dimensions. Further, certain members are modeled to carry only the gravity forces by assigning release in moments along appropriate directions. Thus, the whole structure is not expected to get damaged during any strong earthquake. Consequently, the required amount of reinforcement in various frame members of different floor levels is compared for different cases.
Copyright
Copyright © 2023 Pankaj Kumar. This is an open access article distributed under the Creative Commons Attribution License.
