The GEMSai Raft Foundation software utilizes cutting-edge finite element modelling techniques, ensuring accurate analysis and design. The analysis is carried out by idealizing the raft as an elastic plate of finite rigidity resting on soil sub grade. Our software offers multiple models for idealizing the soil support, including:  

• Discrete Spring Bed Model (Winkler Model): Utilizing modulus of subgrade reaction to simulate soil support.
• Elastic half–space model: Representing the subsoil as an elastic, homogeneous, isotropic, and semi-infinite medium, considering elastic modulus and Poisson ratio.
• Multi-layer subsoil system: Accounting for the actual subsoil profile by incorporating layers such as clay, sand, and rock, using property data obtained from field and laboratory investigations.

Why Choose GEMSai for Raft Foundation Analysis? 

1. Advanced Modelling Techniques: Our software employs cutting-edge finite element modelling techniques for the analysis and design of both shallow and deep foundations. Whether you're dealing with rectangular, circular, polygonal, or user-defined rafts, GEMSai has you covered.
2. Versatile Soil Models: GEMSai offers a range of soil support models, including the discrete spring-bed model (Winkler model), elastic half-space model, and multilayered soil model. This allows for accurate representation of soil behavior and enables engineers to make informed decisions during the design process.
3. Precision through Numerical Analysis: Analyzing raft foundations involves complex equations and intricate calculations. GEMSai simplifies this process by implementing finite element modelling based on Mindlin’s plate theory. Our software discretizes the raft into bilinear quadrilateral plate elements, allowing for precise representation and analysis.
4. Comprehensive Analysis: GEMSai takes into account various factors influencing raft foundation behavior, such as flexural rigidity, soil properties, and load distribution. Engineers can analyze the settlement, bending moments, and shear forces in the raft structure, ensuring comprehensive analysis and design optimization.

Key Features: 

• Raft Geometry: Supports rectangular, circular, regular polygon, and user-defined raft shapes
• Soil Models: Discrete spring-bed model (Winkler), elastic half-space model, and multi-layered soil model
• Multiple load cases: Concentrated loads & moments, line loads, uniform loads
• Analysis results: Settlement, bending & twisting moments, shear forces, soil pressure (tabular & graphical)
• No-contact tension analysis by iterative procedure
• Automatic mesh generation
• One-click computation for all load cases
• Export results to MS Word, Excel and PDF
• SI and US units supported
• Platform: Windows, Mac, and Online (Cloud)
• License: Trial available (free trial on cloud or downloadable)

* Raft Foundation Analysis download link provides trial version of the software.

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