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Dipl.-Ing. (FH) Andreas Hörold
2024-03-08

Webinar | Design of Masonry Structures in RFEM 6 Using FE Analysis

In this webinar, you will learn how to calculate masonry structures in RFEM 6 using an FE analysis.

Time Schedule:
00:00 Introduction
03:10 Input and modeling
31:00 Analysis of detail points using isolated systems
57:25 Documentation

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Presentation Slides to Webinar "Design of Masonry Structures in RFEM 6 Using FE Analysis" (PDF)
1.35 MB
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Knowledge Base Articles
Image 1: Specific Parameters of Nonlinear Elastic Soil Material Model
The Geotechnical Analysis add-on provides RFEM with additional specific soil material models that are able to suitably represent complex soil material behavior. This technical article is an introduction to show how the stress-dependent stiffness of soil material models can be determined.
Superstructure and Soil Massif
This article discusses the results of the geotechnical analysis and their graphical and tabular display in the RFEM 6 program.
Model
Given that realistic determination of the soil conditions significantly influences the quality of the structural analysis of buildings, the Geotechnical Analysis add-on is offered in RFEM 6 to determine the soil body to be analyzed. The way to provide data obtained from field tests in the add-on and use the properties from soil samples to determine the soil massifs of interest was discussed in Knowledge Base article “Creating Soil Body from Soil Samples in RFEM 6”. This article, on the other hand, will discuss the procedure to calculate settlements and soil pressures for a reinforced concrete building.
Interface showing pile member type selection in engineering software
This article introduces the new member type “Pile”, developed to enable efficient and accurate modeling of piles within structural models.
Screenshots
Product Features
Geotechnical analysis using the stiffness modulus method in construction

In the Geotechnical Analysis add-on, it is possible to select the stiffness modulus method (known as "RF-SOILIN" from RFEM 5) as soil modeling. The solution includes the following features:

  • Realistic representation of the interaction between a building and soil using a surface support according to the nonlinear iterative method
  • Consideration of several soil samples (probes) at different locations, also outside the building
  • Consideration of groundwater level as well as side effects due to excavation and the fixed lowest soil layer
  • Calculation of elastic foundation coefficients for each individual element
  • Stiffness modulus method for any (number of) combinations
  • Transfer of foundation coefficients for further combinations
The image shows the anchor member type supported in the soil solid, allowing for the input of parameters for the tension member and the grout body.

In the Geotechnical Analysis add-on, the "Anchor" member type is available. It allows you to enter the parameters for the tension member part as well as for the grout body of the anchor, and is supported in the soil solid.

Feature 002886 | Member Type "Pile" for Geotechnical Analyses

In the Geotechnical Analysis add-on, the member of the "Pile" type is available. For the pile, the pile resistance types are created. They define the resistance parameters from the skin friction and the pile peak pressure.

The pile is then embedded in the adjacent soil solid, while considering the resistance properties resulting from the parameters of the skin friction and the peak pressure.

Feature 002860 | Soil Material Model "Modified Hardening Soil Model" for Geotechnical Analysis

In the Geotechnical Analysis add-on, the high-quality material model "Modified Hardening Soil Model" is available. This material model is suitable for a variety of soils and is able to appropriately represent the following properties of the real soil.

  • Stress dependence of soil stiffness
  • Load path dependence of soil stiffness
  • Plastic strains even before reaching the limit condition
  • Increasing shear resistance with increasing mesh refinement
  • Increasing yield strength with increasing stress until reaching the limit yield condition
  • Failure criterion according to Mohr-Coulomb

You can find more information about this material model and the definition of the input in RFEM in the corresponding chapter of the online manual for the Geotechnical Analysis add-on.

Frequently Asked Questions (FAQ)
Why does the integration/support of my building in the ground below the ground level not work?
How can I set the deformations from an LC/CO or a construction stage to 0?
I want to consider the soil-structure interaction using one of the nonlinear soil material models. Why is it not reasonable to calculate the individual load cases with this model?
What value can I use for cohesion in order to avoid singularities?
The terrain surface of my soil to be analyzed is uneven. How can I edit the geometry of my soil massif for the modeling?
I have a license for the Geotechnical Analysis add-on and it appears as available to me. However, I cannot activate it. What could be the reason?
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