International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 08 | Aug 2025
p-ISSN: 2395-0072
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Seismic, Wind and Collapse Assessment of a G+ 25 Storey Building through Performance- Based Design Pooja B J1, Dr. S Kavitha2 1PG Student (MTech) in Structural Engineering, Dr Ambedkar Institute of Technology, Bangalore, Karnataka, India 2Professor and Head of The Department of Civil Engineering, Dr Ambedkar Institute of Technology, Bangalore,
Karnataka, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - This paper investigates the performance-based
history analysis, the approach allows a more precise understanding of how buildings react to earthquake ground motions and wind excitations. Unlike traditional linear analysis, PBD evaluates multiple hazard intensities, enabling engineers to check conditions related to serviceability, life safety, and collapse prevention in a systematic manner. This makes PBD especially valuable for high-rise structures, where load interactions are complex and flexibility is higher, thus requiring more refined modeling techniques.
design of a G+25 reinforced concrete building under the combined effects of wind and seismic actions. The structural evaluation was carried out for wind speeds of 33 m/s, 43 m/s, and 53 m/s, along with seismic demands across all Indian zones. Time history analysis was adopted to capture the realistic response of the building and to assess its behavior under varying hazard intensities. The results highlighted the potential damage and collapse mechanisms that may occur in extreme conditions. To enhance safety, supplemental dampers were introduced and re-designed, demonstrating their effectiveness in minimizing displacements, reducing energy dissipation demands, and improving structural resilience. The findings underline the significance of performance-based design in modern highrise construction, enabling a more reliable prediction of failure modes and offering strategies to mitigate collapse risk. This research contributes to advancing safe and sustainable tall building design against multi-hazard scenarios.
An additional strength of PBD is the possibility of incorporating supplemental damping systems and energydissipating devices into the design. These systems help minimize excessive displacements, increase energy absorption, and enhance the resilience of tall buildings during extreme conditions. By aligning expected performance with safety targets, PBD ensures that buildings can withstand hazards without sudden or catastrophic failure. In this study, the concepts of PBD are applied to a G+25 storey building, focusing on its performance under different wind speeds and seismic zones, and highlighting how damping devices can effectively minimize collapse risks and strengthen overall safety.
Key Words: Collapse, Muti- Storey Building, Performance Based Design, Seismic, Wind Load.
1. INTRODUCTION
2. LITERATURE REVIEW
The rise of tall buildings has become a prominent characteristic of present-day urban development, mainly due to the growing population and the scarcity of available land. As the height of buildings increases, they are more exposed to significant lateral forces generated by wind and seismic activities, which directly affect their stability and safety. Conventional design practices based on prescriptive codes provide general safety margins but often fail to reflect the true structural behavior during severe hazard scenarios. This shortcoming has led to the evolution of performance-based design (PBD), a methodology that evaluates the actual performance of structures under varying intensities of loading rather than solely meeting code provisions.
Nahom K. Berile et. al (2024) [1] conducted studies applying PBD to tall timber buildings, particularly using post-tensioned cross-laminated timber (PT-CLT) shear walls as the primary wind force-resisting system. Findings revealed that code-based design required considerably higher post-tensioning forces, whereas PBD enabled controlled rocking, reduced drift, and improved serviceability under design wind conditions. Nonlinear response history analysis confirmed that PT-CLT structures could remain within safe deformation limits while concentrating inelastic actions in replaceable components. Results also indicated that damping devices are beneficial in taller structures to address excessive across-wind response. Overall, the research demonstrated that PBD not only enhances collapse resistance but also contributes to resilient and sustainable tall building design under multi-hazard environments.
Performance-based design provides engineers with the ability to forecast how a structure will behave in terms of deformation, possible damage, and collapse probability. By employing advanced analysis methods such as time
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