Webinar | Modeling and Design of Reinforced Concrete Structures in RFEM 6 and RSTAB 9

In order to correctly design a downstand beam or a T-beam in RFEM 6 using the Concrete Design add-on, it is essential to determine the flange widths for the rib members. This article describes the input options for a two-span beam and the calculation of the flange dimensions according to EN 1992-1-1.

If you want to use a pure surface model, for example, when determining the internal forces and moments, but the structural component is still designed on the member model, you can take advantage of a result beam.

With the most recent ACI 318-19 standard, the long-term relationship to determine the concrete shear resistance, V_c, is redefined. With the new method, the member height, the longitudinal reinforcement ratio, and the normal stress now influence the shear strength, V_c. This article describes the shear design updates, and the application is demonstrated with an example.

The Concrete Design add-on allows you to perform the seismic design of reinforced concrete members according to EC 8. This includes, among other things, the following functionalities:

• Seismic design configurations
• Differentiation of the ductility classes DCL, DCM, DCH
• Option to transfer the behavior factor from a dynamic analysis
• Check of the limit value for the behavior factor
• Capacity design checks of "Strong column - weak beam"
• Detailing and particular rules for curvature ductility factor
• Detailing and particular rules for local ductility

The Concrete Design add-on allows you to design fiber-reinforced concrete components according to the guideline "DAfStb Steel Fiber-Reinforced Concrete".

You can use this option for the design according to EN 1992‑1‑1. The design according to the DAfStb guideline is carried out once the concrete of the "Fiber Concrete" type has been assigned to the reinforced structural component.

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In the "Shear Reinforcement" tab, you can select the option "Cross-ties over free rebars with active selection in graphic". It allows you to arrange additional cross-ties on free rebars of the longitudinal reinforcement.

You can activate or deactivate the position of the cross-ties in the Info Graphic. The cross-ties are applied for the ultimate limit state design and the structural design checks. They are available for the design according to EN 1992‑1‑1.

Go to Explanatory Video