Analysis software for soil-structure interaction
Consideration of Soil Models in RFEM
In RFEM, it is possible to consider different soil models, such as the subgrade reaction modulus method, stiffness modulus method (RF-SOILIN), modified two-parametric soil models, etc.
In particular, it is recommended to apply the stiffness modulus method using RF-SOILIN as it represents the soil structure in a realistic way and the subgrade reaction modulus is determined interdependently with the load.
Structural engineering FEA software RFEM is the basis of a modular software system. RFEM is used to define structures, materials, and loads for planar and spatial structural systems consisting of plates, walls, shells and members.
The program also allows you to create combined structures as well as model solid and contact elements.
In RFEM, it is possible to consider different soil models, such as:
- Subgrade reaction modulus method
- Modified subgrade reaction modulus method
- Modified two-parametric soil models (with foundation overlaps or additional springs)
- Stiffness modulus method (RF-SOILIN)
- 3D half-space analysis
In this regard, it is especially recommended to apply the stiffness modulus method using RF-SOILIN as the subgrade reaction modulus is determined interdependently with the load. In addition, different soil layers can be defined in different areas. Thus, the soil structure is represented in a realistic way.
The structural analysis software provided by Dlubal can be seamlessly integrated into the Building Information Modeling (BIM) process. A variety of interfaces allows you to exchange data from digital building models with RFEM or RSTAB.
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FAQ 004717 | In my structure, there are three load cases on the left, which should act alternatively with each other, and three load cases on the right, which should act alternatively with each other. However, the individual load cases should be combined with those on the other side. How can I set such conditions?
Models to Download
Knowledge Base Articles
A foundation is usually created in RFEM using the subgrade reaction modulus method. The reason for this is the relatively easy and straightforward manageability. Also, no iterative calculations are necessary and the computing time is relatively small. The subgrade reaction means that, for example, a foundation plate is loaded flat elastically.
Product Features Articles
RFEM and RSTAB models can be saved as 3D glTF models (*.glb and *.glTF formats). You can use a 3D viewer to view, rotate, etc. the models.
Frequently Asked Questions (FAQs)
- For the settlement calculation in the RF‑SOILIN add-on module, the specific weight gamma and gamma,sat are required for the soil. What do I need the value gamma,sat for, and how is it assumed in the calculation?
- Is there a way how to easily prevent RF‑SOILIN from recalculating the foundation every time the load in the governing load case is changed?
- Can I also use RF‑SOILIN to calculate foundation bodies at different foundation heights in a model?
- Why do I obtain such high contact stresses at the foundation edges of my floor slab?
- Is it sufficient to use a line hinge between two surfaces?
- In my structure, a channel section runs flush with a surface. How can I display the welded connection in detail?
- In my structure, a channel section runs flush with a surface. What is the easiest way to simulate a welded connection?
- Are the models and presentations from Info Day 2020 freely available, and can you send them to me?
- How can I shorten a member by a certain amount?
- How can I delete the individual loads by load case?
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
Soil-structure interaction analysis and determination of elastic foundation coefficients based on soil data