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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AnswerPlease send us the diagnostic file so that we can look into the license issue. You can create the file under [Help → Authorization → Diagnostics] (see Figure 01). To do this, simply start the program in the demo version.In RX-TIMBER, you can create this file under [Help → System Diagnostics] (see Figure 02).
AnswerThe internal forces and deformations are determined according to the second-order analysis for flexural-torsional buckling taking into account 7 degrees of freedom. For a linear calculation of deformations, a vertical/horizontal load results in only one vertical/horizontal deformation. Since the internal forces refer to the deformed system and it is a nonlinear analysis, this is not valid for the second-order analysis for flexural-torsional buckling.
The deformations in the shear center can be checked in RSTAB and RFEM with the RF-/FE-LTB add-on module (see Figure 02). The deformations that additionally result from the displacements or rotations can only be controlled with a surface model in RFEM.
You can control the detail categories in the input dialog box "1.3 Cross-Section" and in the "Edit Claim Types" dialog box.The specified standard values can be selected here. It is not possible to manually adjust these values.
AnswerIn CRANEWAY the internal forces are typically displayed only for max and min locations. If you want to get each internal force on each x-location, then you have to run the detailed calculation and to disable the option "Show only governing results". How to do it, we show you in the short video.
AnswerIf this error occurs, the download did not run correctly. Please download the program again. Please note that the file can only be executed after the complete download.
In this case, start the project manager from the respective program (RFEM, RSTAB ...). Thus, if the project manager is started directly from RFEM, only RFEM files are displayed by default, see Figure 1.
AnswerThe license granted by Dlubal to students contains all of the standard programs, including add-on modules. Just download the required program installation from your account on our website (see video), install it and run it. The only exception is the SHAPE-MASSIVE program, which for technical reasons is only available with a hardware key.
AnswerFirst information beforehand: If the program was started as a full version, it does not jump into the demo mode if the license cannot be found during the calculation or saving process.It remains in waiting stage until the license is available again.It is then necessary to distinguish the type of licensing.
For the single-user license, it should be checked if the hardlock was installed on the computer and if the indicator light situated at the end of the dongle is visible. If not, another USB port - preferably directly on the PC - should be used.In case of a network license, the problem might be caused by a failure in the network connection. In the web-based license user interface http://localhost:1947/_int_/devices.html, it should be checked if the license key is available there.Additionally, it is possible to look at the http://localhost:1947/_int_/features.html to see if a free license is available for the desired program or add-on module.If the licensing problem persists, you can create a diagnostic report from the warning message. Send it to our client support.
- Single-user license
- Network license
AnswerIf stiffeners are welded into the crane runway, the corresponding notch category according to EN 1993-1-9, Table 8.4, detail 7 has to be considered for the fatigue design. This is implemented in CRANEWAY by creating additional stress points at the connection point of the stiffeners to the section. They can be adjusted manually in the settings for the detail categories depending on the geometry of the stiffener.During the fatigue design of the craneway girder, the design of the axial stress range is additionally performed in the newly created stress points for the x-locations on which a stiffener is provided.
AnswerIn the case of long crane runways and many cranes, the large number of load combinations can lead to a long calculation time. The following settings affect the calculation time significantly:
Calculation method for determining the internal forces
The fast calculation type may therefore be useful for the preliminary design.
- Fast calculation (calculation of all load combinations according to the 1st-order analysis, then calculation of the governing load combinations according to second-order analysis for torsional buckling)
- Detailed calculation (calculation of all load combinations according to second-order analysis for torsional buckling)
Maximum target length of the finite elementsThe maximum length of the finite elements generated for the calculation according to the second-order analysis for torsional buckling can be entered within a range of 100 mm to 2500 mm. The calculation time can be increased significantly by the finer division of finite elements.Thus, you should select a reasonable length of the finite elements for an optimized calculation time depending on the structural system. Usually, 8 elements for each girder span are enough to calculate the deformations with a deviation of less than 5% relative to the precise solution.
Number of load combinationsYou can use a reasonable setting of the load increment to control the number of generated load combinations. When entering the load increment, the generated number of crane load positions and load combinations is already displayed in a preview. A small load increment may result in many load combinations that take accordingly more time in the calculation.
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