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2020-08-24

FAQ 004655 | Can I enter a provided basic reinforcement in RF‑CONCRETE Columns?

FAQ|004655

Question:
Can I enter a provided basic reinforcement in RF‑CONCRETE Columns?

Answer:
RF‑CONCRETE Columns designs a provided reinforcement to perform a stability analysis using the method with nominal curvature.

However, the fire resistance design may require a higher basic reinforcement. For this, you can activate the "User-defined minimum and maximum longitudinal reinforcement" in the "DIN EN 1992‑1‑1" tab of Window 1.4 Reinforcement. Then, you can specify an increased basic reinforcement by clicking the [Edit] button.

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Videos
FAQ|004655
EN-US | Flag FAQ
FAQ 004655 | Can I enter a provided basic reinforcement in RF‑CONCRETE Columns?
Length: 00:00:45 min
FAQ|004508
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FAQ 005472 | In the table of the objects to be designed in the Concrete Design add-on, punching nodes are...
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Model 004852 | Pedestrian and Cyclist Bridge in Eichstätt, Germany
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Model 004786 | Office Building with Integrated Visitors' Center and Parking Garage in Geiselbulach, Germany
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Knowledge Base Articles
Design Level 1 - Ultimate Configuration
The fatigue design according to EN 1992-1-1 must be performed for the structural components subjected to large stress ranges and/or many load changes. In this case, the design checks for the concrete and the reinforcement are performed separately. There are two alternative design methods available.
Steel Fiber-Reinforced Concrete Slab
Using an example of a steel fiber-reinforced concrete slab, this article describes how the use of different integration methods and of a different number of integration points affects the calculation result.
KB 001858 | Wind Loads on Circular Dome Roof Structures According to ASCE 7-22
When it comes to wind loads on building type structures as per ASCE 7, numerous resources can be found to supplement design standards and aid engineers with this lateral load application. However, engineers may find it more difficult to find similar resources for wind loading on non-building type structures. This article will examine the steps to calculate and apply wind loads as per ASCE 7-22 on a circular reinforced concrete tank with a dome roof.
Spans Based on Figure 5.2 from [1]
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.
Screenshots
Model of Markas Headquarters, Italy
Model of Markas Headquarters, Italy | © ATP/Bause
Model of Storage Facility Construction with Deformation Results in RSTAB 9
Model of Storage Facility Construction with Deformation Results in RSTAB 9 | © SPIC SAS
RFEM Model of Pedestrian and Cyclist Bridge in Eichstätt, Germany | © Bergmeister Ingenieure
RFEM Model of Pedestrian and Cyclist Bridge in Eichstätt, Germany | © Bergmeister Ingenieure
RFEM Model of Pedestrian and Cyclist Bridge in Eichstätt, Germany | © Bergmeister Ingenieure
RFEM Model of Pedestrian and Cyclist Bridge in Eichstätt, Germany | © Bergmeister Ingenieure
Model 004386 | Multistory Reinforced Concrete Building | CSA A23.3:19
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Design Level 2 – Design Setting
Design Level 1 – Design Setting
Design Level 1 – Design Setting
The Concrete Bridge in RFEM 6
The Concrete Bridge in RFEM 6 | Webservice and API
Advanced Structural Analysis with RFEM 6 Python API
Advanced Structural Analysis with RFEM 6 Python API
Product Features
Feature 002801 | Punching Shear Design for All Section Shapes

Do you have individual column sections and angled wall geometries, and need punching shear design for them?

No problem. In RFEM 6, you can perform punching shear design not only for rectangular and circular sections, but for any cross-section shape.

Feature 002722 | Sensitivity Coefficient

For a response spectrum analysis of building models, you can display the sensitivity coefficients for the horizontal directions by story.

These key figures allow you to interpret the sensitivity to stability effects.

Feature 002720 | Modal Relevance Factor for Stability Analysis

The modal relevance factor (MRF) can help you to assess to which extent specific elements participate in a specific mode shape. The calculation is based on the relative elastic deformation energy of each individual member.

The MRF can be used to distinguish between local and global mode shapes. If multiple individual members show significant MRF (for example, > 20%), the instability of the entire structure or a substructure is very likely. On the other hand, if the sum of all MRFs for an eigenmode is around 100%, a local stability phenomenon (for example, buckling of a single bar) can be expected.

Furthermore, the MRF can be used to determine critical loads and equivalent buckling lengths of certain members (for example, for stability design). Mode shapes for which a specific member has small MRF values (for example, < 20%) can be neglected in this context.

The MRF is displayed by mode shape in the result table under Stability Analysis → Results by Members → Effective Lengths and Critical Loads.

Feature 002721 | Component "Plate Cut"

You can use the "Plate Cut" component to cut plates (for example, gusset plates, fin plates, and so on). There are various cutting methods available:

  • Plane: The cut is performed on the closest surface to the reference plate.
  • Surface: Only the intersecting parts of plates are cut.
  • Bounding Box: The outermost dimension consisting of width and height is cut out of the plate as a rectangle.
  • Convex Envelope: The outer hull of the cross-section is used for the plate cut. If there are fillets at the corner nodes of the cross-section, the cut is adapted to them.
Frequently Asked Questions (FAQ)
Which products do you recommend for the structural analysis and design of reinforced concrete structures?
In the table of the objects to be designed in the Concrete Design add-on, punching nodes are listed in the not valid/deactivated column, although I have defined them as punching nodes. How can I fix this?
How can I generate an area load on members via cells in RFEM 6 or RSTAB 9?
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I use a template for the data exchange with Revit or Rhino/Grasshopper, and get an error message.
Is there a way to reset the 3D view to the original perspective if I have adjusted it using the 3D cube?
Customer Projects
Front View of Office Building with V-Shaped Steel Composite Columns | © Die Tragwerker GmbH
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Office Building of Stadtwerke Kirchheim unter Teck, Germany (Rendering) | © MEDIA 4D GmbH
Office Building of Stadtwerke Kirchheim unter Teck, Germany
Reinforced Concrete Elevator Shaft at Montluçon Station, France (© E.T.L Structures)
Reinforced Concrete Elevator Shaft at Montluçon Station, France
Quai M, the New Concert Hall in La Roche-sur-Yon, France (© LCA Construction Bois)
New Concert Hall in La Roche-sur-Yon, France
Residential Buildings in Trieste, Italy
Residential Buildings in Trieste, Italy
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Airedale Swing Bridge in Rodley, United Kingdom
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AQUAtherm Indoor/Outdoor Swimming Pool in Straubing, Germany
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Freischütz Pedestrian Bridge, Germany
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