International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 09 | Sep 2025
p-ISSN: 2395-0072
www.irjet.net
Comparative Analysis of L- Shaped Building Considering Soil Parameters using STAAD.Pro Mazeen J Bisti1, Shradha Hiremath2 1Post graduate student, Dept of civil Engineering, SGBIT college, Belagavi, Karnataka, India 2Assistant professor, Dept of civil Engineering, SGBIT college, Belagavi, Karnataka, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract -The structural performance of building is highly
in load. The foundation roles put both the dead and live loads on the ground.
dependent on soil condition and the geometry of the structural system. Irregular building configurations such as L-shaped plans are more vulnerable to seismic and differential settlement effects compared to regular structures. This study investigates the influence of soil parameters on the response of an L-shaped reinforced concrete building. A skeleton model of the building is developed and analyses using STAAD.Pro, incorporating soil-structure interaction. The results obtained from the software are compared with manual calculations based on IS codes to validate accuracy.
1.2 SOIL CONDITION Soil condition refers to the physical mechanical, and chemical characteristics of the soil at a construction site. These conditions play a crucial role in determining the types of foundation, the stability, compressibility, drainage, and moisture content directly affect how soil interacts with structural loads.
Key Words: Soil-Structure Interaction (SSI) Shear force, Bending moment, Soil parameters
1.INTRODUCTION Structural safety and serviceability are significantly influenced by soil properties, as the foundation acts as a load transferring medium between the superstructure and the ground. Building with irregular plans, such as L-shaped configuration, are increasingly common due to architectural and functional requirements. However, irregularity in geometry makes such structures more prone to torsional effect, uneven load distribution, and differential settlement.
Fig 1: Classification of seismic analysis 2. LITERATURE REVIEW 1. Seismic design of multistory building with different soil condition: Durgesh Verma Mahroof Ahmed (2024) Analyzed RCC multi-Storey structures on varying soil types using STAAD Pro V8i with the equivalent static method, focusing on displacement, base shear, and drift to assess stability under seismic loading. examined research on structures over hard, medium, and soft soils, pointing out that most studies focus on the seismic effects of medium soils while paying less attention to wind effects. compared various heights and soil conditions in STAAD Pro simulations to investigate the impact of seismic zones and soil stiffness on SMRF frame performance
Traditionally structural analysis has been carried out using manual methods considering simplified assumptions. However, modern structural software like STAAD.Pro enables detailed three- dimensional modelling, soil interaction inclusion, and realistic load simulation. Despite the efficiency of software, validation through manual calculations remains essential to ensure accuracy and reliability. 1.1 FOUNDATION A foundation is the lowest part of a structure that transfers the load of the building safely to the ground. It provides stability by spreading the loads uniformly over a sufficient area of soil, preventing excessive settlement and structural failure. In short, foundation act as bridge between the superstructure above ground and the soil It gives the building stability, keeps it from settling, and makes sure it remains sturdy in the face of wind, earthquakes and changes
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2.Seismic analysis and design of building in different zone and soil types using STAAD PRO Software: Prof Girish Vinayak Joshi, Mr. Rahul (2023) analyzed G+6 residential structures in seismic zones III and IV using STAAD Pro, reporting notable variations in material cost with zone changes. Compared multi-story building designs using staadpro and manual methods finding that software-based
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