Pushover Analysis With and Without Infill Stiffness Consideration in Two Different Zones

The need for assessing the seismic capability of buildings has been highlighted by recent earthquakes that badly devastated many reinforced concrete structures. Simplified linearelastic approaches are insufficient for such an assessment. The non-linear static analysis, also known as the Pushover analysis, sometimes known as collapse analysis, is believed to be a convenient way for evaluating the performance, despite the fact that multiple procedures are conceivable. The use of static pushover analysis to analyze the seismic performance of existing and new structures is becoming more common. The pushover study is expected to offer sufficient information on the seismic demands put on the structural system and its components by the design ground motion. The goal of this research is to use software SAP2000 to perform nonlinear static pushover analysis and assess the nonlinear behaviour of the building frame when the dimensions of the RCC frame structure (i.e. number of bays and storey height) are changed for two different earthquake loadings (i.e. Seismic Zone III and Zone IV). The main purpose of masonry infilled walls in a building is to fill the gap between the horizontal and vertical resisting elements of the building frame, where it is assumed that. As a result, masonry infilled walls are not considered a structural element, and the structure is designed as a bare frame only. However, these brick infilled walls have a significant impact on structural strength and stiffness capabilities, and they are brittle by nature. Methods for calculating the stiffness of brick infill walls and modelling them as equivalent diagonal pin-jointed struts, also known as macro modelling of infill walls, may be found in certain international papers. The inplane effect of a masonry infill wall constructed as an analogous diagonal strut on a Reinforced Concrete structure as compared to a bare frame structure will next be examined.