Mathukiya Harshil Jigneshbhai

SD4006

2B + G + 13 Commercial Stepped Building

This project focuses on the structural analysis of a Stepped Building with vertical geometrical irregularity, examining its impact on seismic performance. Key challenges include torsion, displacement and drift caused by eccentricity between the center of mass and rigidity of each floor. The study found that shear wall placement is crucial in controlling seismic response, while simply increasing column sizes leads to impractical designs. A combination of beam - Column stiffness and shear walls provided a more effective solution. The stepped design also reduces wind load on upper floors compared to regular frame structure and affects the seismic time period, increasing seismic demand. Overall, the project highlights the need for thoughtful structural strategies when designing irregular buildings.  

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Project Brief

Load Consideration & Static Check

Slab Design & Column Sizing

Displacement, Drift & Frame Participation in Gravity Model under Earthquake Conditions with & without Stiffness Modifiers

Eccentricity, Torsion Check & CODAL PROVISION for Vertical Irregularity

Shear Wall Iterations with Gravity Model under Earthquake Conditions with Stiffness Modifiers

Displacement, Drift, Eccentricity, Torsion Check & Frame Participation Results of Final Model

Comparison between the Static and Dynamic Model & Column - Shear Wall Participation

Literature Study on Vertical Setbacks

Detailing of Structural Members