SEISMIC ANALYSIS OF BUILDINGS USING DIRECT DISPLACEMENT BASED DESIGN

Abstract

Seismic resilience in structural engineering is a paramount concern, particularly in regions
prone to seismic activity. This research investigates the seismic performance of reinforced concrete
structures with shear walls, employing two distinct design methodologies: Direct Displacement-Based
Design (DDBD) and traditional Force-Based Design (FBD). Utilizing advanced computational tools
such as ETABS software and the Response Spectrum Method, a comprehensive comparative analysis is
conducted across multiple seismic zones, including Zones III, IV, and V. This study also introduces Lead
Rubber Bearings (LRB) as a base isolation technique to assess its effectiveness in enhancing seismic
performance. The scope encompasses multi-story buildings with varying heights, ranging from G+2 to
G+14. Key findings of this research demonstrate that DDBD consistently outperforms FBD in controlling
structural responses, including base shear, and overturning moments, across the entire spectrum of
building heights and seismic zones. Moreover, the study highlights the adaptability and versatility of
DDBD, emphasizing its potential to enhance seismic resilience in a wide range of multi-story structures.