Rotated Nodal Support: Display and Results in Printout Report

Rotated Nodal Support: Display and Results in Printout Report

Rotated Nodal Support: Display and Results in Printout Report

Lukas Sühnel | Dlubal Software

Nodal supports are usually defined with regard to the global axis system. However, it is sometimes necessary to rotate the nodal support. For example, for floor slab with a pile foundation. For geological reasons, the piles do not rest in the ground vertically, but in an inclined position. Each end point of the piles has a nodal support, which can only absorb forces along the pile foundation direction. Therefore, rotation of the nodal support is required. Various options for this are described in the previous posts.

RFEM and RSTAB provide different display options for support forces. You can select “Local” (relating to the local axis system of the support) and “Global” (relating to the global axis system). In this case, you should use the local reference, otherwise the support force will be converted to all three global axes due to the support rotation. Also, your selection of the result display affects the printout report, which shows the support forces according to the selected option.

More about result evaluation and printout report in RFEM…

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Projection of Average Region Using Vector

Projection of Average Region Using Vector

Projection of Average Region Using Vector

Bastian Kuhn | Dlubal Software

For average regions, it is possible to use a vector as projection. Thus, it is possible to define average regions for curved surfaces as well.

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New Option for Platform Connection in RF-/TOWER Equipment

New Option for Platform Connection in RF-/TOWER Equipment

New Option for Platform Connection in RF-/TOWER Equipment

Wieland Götzler | Dlubal Software

Platforms can be connected directly to leg members using the new “Leg Member Axis” option. Thus, it is not necessary to define the platform width or coupling member anymore.

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Designed with Dlubal Software: Extension of Production Plant in Germany

Designed with Dlubal Software: Extension of Production Plant in Germany

Designed with Dlubal Software: Extension of Production Plant in Germany

Malgorzata Mieszczak | Dlubal Software

A chipboard factory in Germany was reconstructed at the beginning of 2014. The main structural elements were made of S235 steel hot-rolled shapes and the structure was set on a slab foundation.

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Graphical Assignment of Cross-Sections to Members

Graphical Assignment of Cross-Sections to Members

Graphical Assignment of Cross-Sections to Members

Markus Baumgärtel | Dlubal Software

During the optimization of a structure, it can happen that the individual cross-sections have to be modified several times. This can be done very quickly by using the function “Assign Graphically to Members” which is available under “Cross-Sections” in Project Navigator – Data.

Thus, all members in the model are visually split into three parts (member start, entire member, member end). Then, you can left-click the member parts whose cross-section has been modified.

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Complete Solution for Structural Steel Design

A Complete Solution for Structural Steel Design

A Complete Solution for Structural Steel Design

Andreas Hörold | Dlubal Software

The structural analysis programs RFEM and RSTAB allow for continuous planning of steel structures. This means that it goes beyond the simple design of components. In addition to stability and buckling analysis, it is also possible to perform dynamic calculations. Moreover, you can use plastic cross-section reserves and design various connections.

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Mesh Quality in RFEM

Mesh Quality in RFEM

Mesh Quality in RFEM

Sonja von Bloh | Dlubal Software

The generated FE mesh can be evaluated by using the Mesh Quality Criteria . The quality of the FE mesh can be displayed graphically using the Display navigator. It is also possible to display the “OK”, “Warning” and “Failed” Elements separately for surfaces and solids. Furthermore, you can also graphically display the Mesh Quality Annotations.

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Features That Are Missing in Other Structural Analysis Programs

Features That Are Missing in Other Structural Analysis Programs

Features That Are Missing in Other Structural Analysis Programs

Andreas Hörold | Dlubal Software

Dlubal Software programs include a wide range of useful features that are missing in many similar structural analysis programs. Some of them are listed here. Therefore, RFEM and RSTAB are not only a good alternative to the CAD programs such as SAP 2000, STAAD Pro, RISA, Robot Structural Analysis, SCIA Engineer, SOFiSTiK etc., but they are often the first choice for structural engineers.

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Monopitch and Duopitch Roofs in RX-TIMBER Roof

Monopitch and Duopitch Roofs in RX-TIMBER Roof

Monopitch and Duopitch Roofs in RX-TIMBER Roof

Robert Vogl | Dlubal Software

The product range of Dlubal Software has been extended with a new program RX-TIMBER Roof. This stand-alone program allows you to efficiently design rafters of monopitch and duopitch roofs.

When entering the roof geometry, it is also possible to define asymmetrical roof shapes. Duopitch roofs can be complemented by horizontal beams (collar and tie beams). For rafters and beams, you can also add intermediate supports as they are entered using purlins or walls.

The governing wind and snow loads are generated on the basis of the building dimensions in compliance with the standard. They are superimposed with permanent and imposed loads in combinations and then used in the ultimate and serviceability limit state designs. In addition, it is also possible to perform fire resistance designs.

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First Steps with RFEM and RSTAB

First Steps with RFEM and RSTAB

First Steps with RFEM and RSTAB

Andreas Hörold | Dlubal Software

For users not familiar with RFEM or RSTAB, we provide useful hints and tips here in order to facilitate the introduction.

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