International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 01 | Jan 2024
p-ISSN: 2395-0072
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A Review on Comparative Analysis of Raft Foundation, Raft with Drop & Pile Raft Foundation Shaktisinh Raol1, Aakash Suthar2, 1M.Tech Student, L.J. University, Ahmedabad 2Aakash Suthar, Professor, Structural Engineering Department, L.J. University, Ahmedabad, India. ---------------------------------------------------------------------***---------------------------------------------------------------------
comparative analysis will offer practitioners and stakeholders priceless insights, enabling educated decisionmaking in the selection of foundation systems catered to the particular difficulties presented by various seismic zones and soil types. The ultimate goal of this research is to make a valuable contribution to the continuous improvement of foundation design techniques, which will protect high-rise buildings' structural integrity and long-term resilience in a variety of dynamic urban environments.
Abstract - The study conducts a comprehensive comparative analysis of three distinct foundation systems: Raft Foundation, Raft with Drop, and Pile Raft Foundation. Employing advanced structural analysis and design software, the research aims to gain insights into the structural and geotechnical behavior of these foundation systems. Various loading scenarios and soil profiles are considered to assess their performance comprehensively. The analysis involves crucial factors such as load distribution, stress concentrations, and overall structural performance, utilizing the finite element analysis capabilities of CSI SAFE software. This sophisticated software is instrumental in modeling bearing capacity, settlement features, and the interaction between the foundation and soil, providing a holistic understanding of the geotechnical elements involved.
The use of ETABS for structural analysis and design suggests a commitment to utilizing cutting-edge computational power to examine and enhance the structural components of tall structures. This entails evaluating how the structure reacts to different loads, making sure it complies with safety regulations, and maximizing its overall effectiveness. Indepth foundation modelling is done concurrently with the use of CSI SAFE software, highlighting the crucial part that foundations play in the structural integrity of tall buildings.
Key Words: Foundation Design, Raft Foundation, Pile Raft foundation, Raft with Drop, Structural Design, Seismic Load, CSI SAFE, Etabs.
Essentially, this study adds to the current discussion on highrise building foundation systems and demonstrates the use of cutting-edge engineering instruments to carry out an exhaustive analysis. It is anticipated that the results will influence and direct structural engineering decisions in the future, assisting in the creation of high-rise buildings that are safer and more resilient in the face of changing urban environments and seismic hazards.
1. INTRODUCTION The choice of a suitable foundation system for high-rise buildings is a crucial factor in determining their stability and resilience in the dynamic field of structural engineering. A deeper comprehension of foundation design is more and more important as urban landscapes, marked by an increasing demand for vertical development, continue to change. Using ETABS and CSI SAFE Software, this study aims to conduct a thorough investigation into the Comparative Analysis of Raft Foundation, Raft with Drop, and Pile Raft Foundation. The main objective is to carefully examine and make relevant comparisons between these three different foundation systems' geotechnical response and structural performance in the context of high-rise buildings. By utilizing cutting-edge engineering software, ETABS for structural analysis and design and CSI SAFE for thorough foundation modelling, this research aims to investigate the complex interactions between these foundations under the combined effects of different seismic zones and different soil types. The main focus is on deciphering the intricate dynamics of how various foundation types respond to seismic forces and accommodate the various soil profiles typical of various geographic locations. It is anticipated that the results of this
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Figure 1: CSI SAFE Model of Raft Foundation
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