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Useful Program Features
The Knowledge Base includes technical articles on a wide array of structural analysis and design topics.
These articles are intended to help you navigate through the Dlubal programs, learn efficient tips and tricks, and provide further insight into the program features.
Why Dlubal Software?
2018 NDS Updates for Cross-Laminated Timber DesignThe American Wood Council (AWC) has released the 2018 Edition of the National Design Specification (NDS) for Wood Construction. This is the second edition of the NDS to contain a chapter dedicated to cross-laminated timber (CLT) design. Therefore, a couple of revisions were included in the 2018 NDS when compared to the previous 2015 Edition.
Determination of Bearing Resistance with "Drained" and "Undrained" Soil ConditionsThe RF-/FOUNDATION Pro add‑on module designs single foundations (foundation plates, bucket and block foundations) for all support forces arising in the RFEM/RSTAB model. The geotechnical designs are performed according to EN 1997-1.
Wind Loads on Circular Dome Roof Structures According to ASCE 7-16When it comes to wind loads on building type structures per the 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 per the ASCE 7-16 on a circular reinforced concrete tank with a dome roof.
Modeling Joints as Surface ModelWith RF-/FRAME-JOINT Pro, it is possible to design frame joints according to DIN 18800 or Eurocode 3. When considering non-standardized joints or taking a closer look at the joint and its behavior, it is recommended to use a modeling as surface model. The following article will show how such a model is created in principle.
Determination of Story Drift According to ASCE 7-16 Under Seismic LoadsThe story drift of a building provides valuable information about its structural behavior under seismic loads.
Determination of Wind Loads for Canopy Roof Structures According to EN 1991-1-4If a canopy roof, for example a filling station roof, should be designed, a load determination having regard to Section 7.3 of EN 1991-1-4 is required. This article shows with an example the design of a slightly inclined troughed roof.
Consideration of P-Delta Effects (Second-Order Analysis) in the Response Spectrum Analysis According to ASCE 7-16RFEM offers the option to perform a response spectrum analysis according to ASCE 7-16. This standard describes the determination of seismic loads for the US-American market. It might happen that the so-called P-Delta effect has to be considered due to the stiffness of the entire structure to be able to calculate the internal forces and carry out the design.
Opportunities and Challenges of Structural Engineers When Using BIMThe bachelor thesis of Daniel Dlubal focuses on presenting and highlighting the chances, advantages and opportunities of BIM when performing structural analysis and design of buildings. The essential information of a structural analysis is shown and the data exchange between CAD and structural engineering software is explained in detail as well.
Basics to Determine and Evaluate Influence LinesInfluence lines have become less important nowadays due to the fast computer systems. However, it might be an advantage to use influence lines in the phase of preliminary design, but also in the actual creation of the structural designs. With the RF-INFLUENCE add-on module, it is possible to generate and evaluate influence lines and influence surfaces easily due to a fixed internal force. This technical article describes with a simple example the basics to determine and evaluate influence lines.
Determination of Effective Lengths in RF-/CONCRETE ColumnsWith RF-/CONCRETE Columns, it is possible to determine effective lengths for columns automatically. This article describes which entries are necessary and how the calculation of the effective lengths is carried out.
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