• Surender Kumar
• Mr. Ajay Vikram

The growing demand for seismic-resilient infrastructure underscores the critical importance of advanced analytical approaches to evaluate and mitigate the vulnerabilities of reinforced concrete (RC) structures. This study presents a comprehensive seismic analysis of an eleven-story RC frame situated in Jammu City, India, a high-seismicity zone categorized under Zone 4. Employing the Response Spectrum Method (RSM) in compliance with IS 1893:2016 provisions, the study evaluates seismic-induced displacements, inter-story drifts, and stress distributions. Results indicate significant lateral displacements and drift ratios, exceeding permissible thresholds, with the maximum observed drift surpassing the IS standard by 2–3 times. Ground-floor columns exhibited compressive stresses 1.5 to 2 times greater than tensile counterparts, emphasizing their vulnerability under cumulative axial loads. Additionally, shear forces in critical beams demonstrated an alarming threefold increase under combined static and seismic loading, accentuating potential failure mechanisms. The analysis executed using STAAD. Pro software highlights disparities in force distributions between interior and exterior columns, necessitating targeted reinforcement strategies. To address identified deficiencies, actionable recommendations include implementing Fiber-Reinforced Polymer (FRP) wrapping, base isolation systems, and enhanced lateral load-resisting mechanisms such as shear walls and cross-bracing. This investigation bridges theoretical seismic design frameworks and practical implementation gaps, offering insights for policymakers, engineers, and researchers. It reinforces the urgency for stringent adherence to seismic codes, advanced material utilization, and continuous structural health monitoring to safeguard urban infrastructure against seismic threats. Future research directions propose exploring machine learning for seismic risk prediction and advanced energy dissipation systems, bolstering resilience in seismic-prone regions.

Seismic Analysis, Reinforced Concrete, Loads, Stresses, Shear Force, Columns

"Dynamic Response and Advanced Spectral Seismic Analysis of Multistorey RC Structures in Seismic Zone 4: Insights and Mitigation Strategies", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 11, page no.e572-e581, November-2025, Available :http://www.jetir.org/papers/JETIR2511471.pdf

"Dynamic Response and Advanced Spectral Seismic Analysis of Multistorey RC Structures in Seismic Zone 4: Insights and Mitigation Strategies", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 11, page no. ppe572-e581, November-2025, Available at : http://www.jetir.org/papers/JETIR2511471.pdf