CAD/BIM Model

CAD/BIM Model
CAD/BIM Model

Andreas Niemeier | Dlubal Software

RFEM and RSTAB provide the option to “Enable CAD/BIM model” in the Model – General Data dialog box, tab “Options”. In addition to creating a model as usual, this CAD/BIM model allows you to import, organize and transform IFC, STEP, and IGES files.

After selecting this option, a new subnavigator “CAD/BIM model” appears in the Project Navigator (see the lower screen). This navigator includes two import functions:
1. Certified import “IFC2x3 ISO/PAS 16739” of IFC files according to the “Coordination View 2.0” example.
2. Import of STEP files (Standard for the Exchange of Product Model Data) and IGES files (Initial Graphics Exchange Specification).

First, the import in this intermediate environment transfers the import data in a plane to only display the objects without generating data for the analytical model. In this plane, you can additionally create members, surfaces, or solids for the analytical model by right-clicking the respective object.

This intermediate level allows for a controlled import of objects in the analytical model. In this way, you can create the analytical model using BIM data without unnecessary elements in RFEM and RSTAB.

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Show Isoline Labels Shifted

Show Isoline Labels Shifted
Show Isoline Labels Shifted

Alexander Meierhofer | Dlubal Software

In the case of very small distances between isolines, the labels often overlap, which makes the result documentation difficult. As of the RFEM version 5.06, it is possible to select shifted arrangement of the isoline labels in the Display Properties dialog box. By selecting the “Show values shifted” option, you can easily avoid overlapping the result values in many cases.

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Adding Prefix to Page and Sheet Numbering

Adding Prefix to Page and Sheet Numbering
Adding Prefix to Page and Sheet Numbering

Sandy Matula | Dlubal Software

The “Page and Sheet Numbering” dialog box allows you to add a prefix to the numbering of the pages and sheets. It can be an abbreviation which specifies by chapter all model data in the numbering, for example with “MO”.

In order to facilitate the entry for a chapter, it is also possible to use one prefix for several or all chapters. For this, enter the abbreviation in the first row. Then, mark the rows and select the “Set” option by right-clicking. Thus, these rows are overwritten with the content of the first row.

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Effective Concrete Tensile Strength at Time of Cracking in RF-CONCRETE Members

Effective Concrete Tensile Strength at Time of Cracking in RF-CONCRETE Members
Effective Concrete Tensile Strength at Time of Cracking in RF-CONCRETE Members

Adrian Langhammer | Dlubal Software

As of the program version 5.06, you can use the option to adjust the effective concrete tensile strength fct,eff,wk at the time of cracking. At the start of the SLS design, the program checks whether the internal forces can cause cracks in the concrete. For this, the effective concrete tensile strength at the time of cracking is applied. You can adjust the strength via the factor. The calculation details display the adjusted value.

It is possible to adjust the effective concrete tensile strength fct,eff,wk in Window “1.6 Reinforcement”, tab “Serviceability”.

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New Add-on Module RF-CUTTING-PATTERN for Cutting Patterns for Membrane Structures

New Add-on Module RF-CUTTING-PATTERN for Cutting Patterns for Membrane Structures
New Add-on Module RF-CUTTING-PATTERN for Cutting Patterns for Membrane Structures

Andreas Hörold | Dlubal Software

RF-CUTTING-PATTERN generates and organizes cutting patterns for membrane structures. Boundary conditions of the cutting patterns on curved geometry are determined by boundary lines and independent planar cutting lines or geodesic lines. The flattening process is performed according to the minimum energy theory.

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Graphic Display of Soil Profile from RF-/FOUNDATION Pro

Graphic Display of Soil Profile from RF-/FOUNDATION Pro
Graphic Display of Soil Profile from RF-/FOUNDATION Pro

Paul Kieloch | Dlubal Software

The program version x.06.1103 introduced the option to enter a soil profile in RF-/FOUNDATION Pro.

As of the program version x.06.3039, it is also possible to display the soil profile defined in RF-/FOUNDATION Pro in the graphic window of RFEM and RSTAB. After the calculation, you have to display the results of the respective design case in the main program first. In the result panel, select the “Soil profile” check box. You can also select here if the soil profile should be displayed in the original or final state in the graphic. Furthermore, it is also possible to show the dimensioning of the soil profile.

Of course, these graphics can also be printed afterward in the printout report.

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New Joint Category “Beam to Beam” in RF-/JOINTS Steel – Pinned

New Joint Category "Beam to Beam" in RF-/JOINTS Steel - Pinned
New Joint Category “Beam to Beam” in RF-/JOINTS Steel – Pinned

Sebastian Hawranke | Dlubal Software

As of the program version X.07.01, it is also possible to perform the design of pinned beam-to-beam joints.

The following joint types are available:
~ Web cleat connection
~ Fin plate or rib connection
~ Short end plate connection

The beam can be connected to the main beam on one or both sides. The vertical arrangement of the beam is variable. Notching of the beam depends on the requirements and can be arranged on the upper or bottom face. In the case of one-sided connections, you can also arrange web stiffeners as reinforcement. Similarly to the beam-to-column joints, the fastener positioning is limited minimally.

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Eccentric Nodal Loads in RF-/FE-LTB

Eccentric Nodal Loads in RF-/FE-LTB
Eccentric Nodal Loads in RF-/FE-LTB

Thomas Günthel | Dlubal Software

There are two ways to specify eccentric nodal loads in RF-/FE-LTB. First, the nodal load has to be applied in the right direction. Then, you can assign either the resulting torsional moment or the eccentricity.

For the selection, the load reference is crucial. When entering the torsional moment, the load acts independently of the deformation. In detail, this means that the load remains constant when rotating the member about its axis. The more usual case of dividing the load by the rotation is created by using the defined eccentricity. For example, if there is an eccentricity for a load in the local z-direction, the member torsion causes the resulting torsional moment to be partially redistributed in the local y-direction so the torsional moment failure is smaller than in the first case.

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