- Realistic representation of interaction between a building and soil
- Extensible library of soil properties
- Consideration of several soil samples (probes) at different locations, even outside the building
- Consideration of groundwater level as well as side effects due to excavation and lowest soil layer being solid
- Calculation of elastic foundation coefficients
- Determination and graphical display of stress diagrams and settlements in grid points
RF-SOILIN | Features
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In this article, you will learn how to model and design cable structures in RFEM 6 or RSTAB 9.
This article describes and explains the influence of bending stiffness of cables on their internal forces. Furthermore, the text provides information on how this influence can be reduced.
The ASCE 7-22 Standard [1], Sect. 12.9.1.6 specifies when P-delta effects should be considered when running a modal response spectrum analysis for seismic design. In the NBC 2020 [2], Sent. 4.1.8.3.8.c gives only a short requirement that sway effects due to the interaction of gravity loads with the deformed structure should be considered. Therefore, there may be situations where second-order effects, also known as P-delta, must be considered when carrying out a seismic analysis.
This article presents the basic concepts in structural dynamics and their role in the seismic design of structures. Great emphasis is given to explaining the technical aspects in an understandable way, so that readers without deep technical knowledge can gain an insight into the subject.
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The calculated stresses and settlements are displayed in result windows. In addition, it is possible to evaluate the results graphically. The graphic displays the position and the layer arrangement of the soil samples to clarify the results.
The final result window shows the elastic foundation coefficients. Graphical evaluation is possible as well.
Elastic foundation coefficients are calculated according to the non-linear iterative method. The module determines elastic foundation coefficients for each individual element. They are dependent on the deformation.
The definition of soil layers is performed in a clearly arranged input window. An extensible library facilitates the selection of soil properties.
The elasticity can be defined either by the stiffness modulus or the modulus of elasticity and the Poisson's ratio. It is possible to define any number of soil layers. You can assign the layers to the building graphically or by entering the relevant coordinates.
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- Realistic representation of interaction between a building and soil
- Extensible library of soil properties
- Consideration of several soil samples (probes) at different locations, even outside the building
- Consideration of groundwater level as well as side effects due to excavation and lowest soil layer being solid
- Calculation of elastic foundation coefficients
- Determination and graphical display of stress diagrams and settlements in grid points
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?
What happens if I activate the "Soil failure" function in RF‑SOILIN?
How can I change the Standard / National Annex set for the design in the add-on modules and stand-alone programs?
Red values are displayed in the intermediate results of RF‑SOILIN. Why?
Currently, I have the problem that the calculation in RF‑SOILIN takes an extremely long time and does not converge. What should I do?
Does a calculation in RF‑SOILIN also work with solids?
