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2024-03-06

Excited About New Features in RFEM 6

I have been using RFEM 6 for a few weeks now and wanted to express my great praise. It took a bit of getting used to at first, but I'm now really excited about the new features. Thank you very much!
Dipl.‑Ing. Maximilian Philipp​​​​

B+G Ingenieure Bollinger und Grohmann GmbH
Westhafenplatz 1, 60327, Frankfurt am Main
Germany

www.bollinger-grohmann.com
Model 004727 | Steel Structure
Model 004727 | Steel Structure
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Knowledge Base Articles
Illustration of a method for performing stability analysis according to DIN EN 1992-1-1 in RFEM 6
For reinforced concrete components and structures with structural behavior considerably influenced by the effects of the second-order analysis, Eurocode 2 provides the general method based on a nonlinear determination of internal forces according to the second-order analysis (5.8.6), as well as the approximation method based on the nominal curvature (5.8.8).

The aim of this technical article is to perform a design according to the general design method of Eurocode 2, using the example of a slender reinforced concrete column.
Modell eines Stahlbetonbalkens, der durch Kriechen und Schwinden beeinflusst wird
This technical article addresses the direct deformation analysis of reinforced concrete beams considering the long-term effects of creep and shrinkage. The direct calculation according to Eurocode 2 (EN 1992-1-1, Section 7.4.3) is explained using a single-span beam. Particular emphasis is placed on tension stiffening, behavior in the cracked state based on the distribution factor (damage parameter), and consideration of shrinkage and creep behavior.
Model showing integrated steel joints highlighting connection and structure interaction in design.
This article explores the importance of considering joint-structure interaction in modeling and design and how to do it in RFEM 6 and RSTAB 9.
Visualization of the shear flow result diagram and acting forces on a timber panel wall
In this article, the design of a timber panel wall with the beam panel thickness type is performed.
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Product Features
Material model Anisotropic | Damage, nonlinear behavior, concrete and reinforced concrete

The "Nonlinear Material Behavior" add-on includes the Anistropic | Damage material model for concrete structural components. This material model allows you to consider concrete damage for members, surfaces, and solids.

You can define an individual stress-strain diagram via a table, use the parametric input to generate the stress-strain diagram, or use the predefined parameters from the standards. Furthermore, it is possible to consider the tension stiffening effect.

For the reinforcement, both nonlinear material models "Isotropic | Plastic (Members)" and "Isotropic | Nonlinear Elastic (Members)" are available.

It is possible to consider the long-term effects due to creep and shrinkage using the "Static Analysis | Creep & Shrinkage (Linear)" analysis type that has been recently released. Creep is taken into account by stretching the stress-strain diagram of the concrete using the factor (1+phi), and shrinkage is taken into account as the pre-strain of the concrete. More detailed time step analyses are possible using the "Time-Dependent Analysis (TDA)" add-on.

Feature 002918 | Determination of Required Longitudinal Reinforcement for Direct Crack Analysis

In the Concrete Design add-on, you can determine the required longitudinal reinforcement for the direct crack width analysis (wk).

Feature 002920 | Automatic Function of Longitudinal Reinforcement for Members

For the design of reinforced concrete members, there is the option to automatically determine the number or diameter of rebars.

Feature 002916 | Joint-Structure Interaction for Steel Joints

Want to automatically consider steel joint stiffness in your global RFEM model? Utilize the Steel Joints add-on!

Activate joint-structure interaction in the stiffness analysis of your steel joints. Hinges with springs are then automatically generated in the global model and included in subsequent calculations.

Frequently Asked Questions (FAQ)

How can I check the determination of the required reinforcement?

How can treating a connection as fully rigid result in an uneconomical design?

Is it possible to consider shear panels and rotational restraints in the global calculation?

Do I need to add a line hinge/line release for the CLT wall-to-floor connection in the Building Model add-on?
How can I add counteracting dead loads (0.9*D) in NBC load combinations?
A steel joint in my model is non-designable. How can I get more information to find the cause?
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