In addition to our technical support (e.g. via chat), you’ll find resources on our website that may help you with your design using Dlubal Software.
Frequently Asked Questions (FAQ)
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The first natural frequency is required to determine the structure coefficient. It is not determined by using a generalized formula, but the integrated eigenvalue solver RF‑/DYNAM, taking into account the real mass distribution and displaying the results in Column A of Table 2.3.
A user-defined wind load distribution is not provided in the Eurocode. In order to implement a user-defined wind load distribution in the RF‑/TOWER Loading add-on module, this can only be done after conversion to DIN, for example, DIN 4131:1993‑11, see Figure 01, Window "1.3 Wind Load - Part 1."
Then, you can select the user-defined distribution in Window 1.4 "Wind Load - Part 2," and define it in the adjacent table, see Figure 02.
AnswerThe programs RFEM or RSTAB is very well suited to perform these designs . Add-on modules for steel or solid construction support your individual solution approaches.
Special add-on modules from the RF-/MAST series extend and simplify the possibilities.
Main Programs RFEM or RSTABUsing the main programs, the structures and materials, and the effects can be defined.With RSTAB, you can edit and calculate truss-like or frame-like structures. RFEM enables also the processing of plates, panes, shells, and solid elements.
Add-on modulesRF-/TOWER Structure
helps in the efficient generation of three- or four-sided tower structures
includes a comprehensive library with add-on parts and allows for a quick and easy integration into your model.
supports you professionally in the generation of wind, ice and traffic loads.
RF-/TOWER Effective Lengths
determines the effective lengths of members especially for masts
does the design according to EN 1993-1-1, EN 1993-3-1 and EN 50341 incl. NA.
RF-/JOINTS Steel Tower
designs hinged bolt connections of lattice towers according to EN 1993-1-8
Wind analysis in a digital wind tunnelUse RWIND Simulation for advanced flow behavior analyses. The results can be used directly as loads or load cases in RFEM or RSTAB.
Dynamic AnalysisIf earthquake calculations or vibration tests are necessary, the RF-/DYNAM Pro add-on modules provide suitable tools for determining natural frequencies and shapes, for analyzing forced vibrations, for generating equivalent loads or for non-linear time history analysis.In case of having any further questions about the Dlubal software, contact the sales department, please.
AnswerIn the result tables of the add-on module, you can find all intermediate values for each wind direction, face and sector. This feature is also available in the long version of the printout report, though it can significantly increase the size of the report.
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Wind Simulation & Wind Load Generation
With the stand-alone program RWIND Simulation, wind flows around simple or complex structures can be simulated by means of a digital wind tunnel.
The generated wind loads acting on these objects can be imported to RFEM or RSTAB.
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