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  1. Figure 01 - Real Model and Structural System

    Considering Slip Between Surfaces

    This article deals with considering slip between surfaces with line hinges and line releases. Line hinges and line releases are used to consider slip between surfaces. Examples are joints in reinforced concrete structures or frame joints in cross-laminated timber structures.
  2. Figure 01 - Format Conversion Factor, KF, when Designing per the 2018 NDS and LRFD in RF-LAMINATE

    2018 NDS Updates for Cross-Laminated Timber Design

    The 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.
  3. Figure 01 - Hinged Column

    Determination of Bearing Resistance with "Drained" and "Undrained" Soil Conditions

    The 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.
  4. External Pressure Coefficients, Cp, for Domed Roofs with a Circular Base (according to Figure 27.3-2 [1])

    Wind Loads on Circular Dome Roof Structures According to ASCE 7-16

    When 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.
  5. Hall Frame as Basis for Surface Model

    Modeling Joints as Surface Model

    With RF-/FRAME-JOINT Pro, it is possible to design frame joints according to DIN 18800 or Eurocode 3. If it is about non-standardized joints or taking a closer look at the joint and its behavior, it is recommended to use the modeling as surface model. The following article will show how such a model is structured in principle.
  6. Structural Modeling in RFEM

    Determination of Story Drift According to ASCE 7-16 Under Seismic Loads

    The story drift of a building provides valuable information about its structural behavior under seismic loads.
  7. Classification of Surfaces Total Pressure Coefficients

    Determination of Wind Loads for Canopy Roof Structures According to EN 1991-1-4

    If 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.
  8. Determination of the Maximum Horizontal and Vertical Loads to Calculate the Stability Coefficient

    Consideration of P-Delta Effects (Second-Order Analysis) in the Response Spectrum Analysis According to ASCE 7-16

    RFEM 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.
  9. Export of Amount of Reinforcement from RFEM to REVIT

    Opportunities and Challenges of Structural Engineers When Using BIM

    The 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.
  10. Internal Force My and Influence Line for My for x = 1.25 m

    Basics to Determine and Evaluate Influence Lines

    Influence 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.

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