Seismic Analysis of Conventional, Hexagrid and Octagrid Steel Structural Systems
Shaikh Md Yasin, S.A. Bhalchandra, [This article belongs to Journal of Structural Engineering and Management(josem)]
Keywords
Seismic analysis, conventional, octagrid, hexagrid, response spectrum method, multi-story buildings, comparative analysis
Abstract
The seismic resilience of multi-story buildings in earthquake-prone regions is a critical consideration in
structural engineering. This dissertation presents a comprehensive analysis of the seismic performance
of proposed multi-story buildings with varying heights (G+10, G+15, and G+20) using conventional,
hexagrid, and octagrid structural systems. The study utilizes the Response Spectrum Method under seismic
zone Ⅴ conditions to assess key parameters including storey drift, storey displacement, base shear, and
overturning moment. Through nonlinear dynamic analysis, the seismic response of each structural system
is evaluated, with a focus on categorizing bifurcations based on observed responses. The findings reveal
significant variations in seismic performance among the different structural systems, with the hexagrid
configuration demonstrating superior performance in mitigating seismic loads. The implications of these
findings for seismic-resilient building design and construction practices are discussed, emphasizing the
importance of adopting innovative structural systems to enhance seismic resilience and ensure the safety
of built environments in earthquake-prone regions. This research contributes valuable insights to the field
of structural engineering, informing stakeholders and decision-makers on effective strategies for
mitigating seismic risks and creating safer built environments.
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