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Frequently Asked Questions (FAQ)
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AnswerThe definition of the standard according to which the structural component is to be designed is entered in window 1.1 of the add-on module. To display and hide old standards, use the "Show only valid standards / National Annexes" button in the list. They are marked in red.
AnswerYes, it is.Open the table "1.2 Materials" and the material library for the reinforcing steel. See figure 01.In this material library you can create a new "user-defined" material and edit the standard presets for example for the yield strength. See figure 02.Afterwards you can select this user-defined material for design in table 1.2 in RF-CONCRETE Members and RF-CONCRETE Columns.It is the same for the RSTAB-modules CONCRETE and CONCRETE Columns.
AnswerPresumably, a material was already selected in RFEM whose standard does not match the design standard. Z B. a material according to DIN 1045-1 was selected, the design according to DIN EN 1992-1-1. The different material standards often provide different parameters.For this reason, it is preferable to select the material standard already in RFEM, which also applies to the design standard.
AnswerUnfortunately, there is currently no way to export the reinforcement from RF / CONCRETE Members into a CAD format. In RFEM, however, the design results from RF-BETON surfaces can be exported to a DXF file.
AnswerYes, this is possible, but this material must be created in the corresponding filter via the material library, so that all relevant information for the module is available. In addition, the standard group or standard must be selected so that it fits the design standard in the module.It is best to go to the material library and select the material category and group as well as the corresponding standard there. Create a new material after selection (see figure 1)Afterwards, a corresponding dialog opens by selecting a material name and the corresponding parameters (see Figure 2). The material should then be usable in the design.
How can I change the units for the required reinforcement in RF-CONCRETE Columns?In my case, instead of [cm²], [m²] is always displayed.
AnswerYou can adjust the units in the RF-CONCRETE Columns add-on module by using the Settings menu.To adjust the unit for the required reinforcement area, change the unit for the "Surfaces".
When you create a new cross-section in RFEM / RSTAB, you can select different cross-section types in the "Parametric - Massive" category. When the mouse cursor lags a button for a moment, a message appears informing you which add-on modules to dimension this cross-section (see Figure 01).
The cross-sections marked green in Figure 01 can be designed with CONCRETE and RF-CONCRETE Members. However, a "Pi cross-section, type A" is not suitable for the design with CONCRETE or RF-CONCRETE Members. However, as shown in the Info dialog box, RF-TENDON allows you to analyze the cross-section. Thus, you can select this cross-section for a member in RFEM and design it in the RF-TENDON Design add-on module.
Why can not you design all cross-sections in CONCRETE or RF-CONCRETE Members?
This is due to the available reinforcement layers for the individual cross-section types. For example, if you create and dimension a rectangular cross-section, you can find the corresponding reinforcement layer in CONCRETE TEMPLATE 1.6, that is, the possible reinforcement distribution (see Figure 02). Different reinforcement diagrams are possible for a rectangular cross-section. These reinforcement layers are required to determine the stresses and strains in the cross-section and thus the required reinforcement.
For other cross-sections such as Pi cross-sections, this information is not available in the current development state. Therefore, you can not design them with CONCRETE or RF-CONCRETE Members.
If the program DICKQ is licensed, you can create the statical structure with Pi cross-section in RFEM / RSTAB and determine the governing internal forces. In DICKQ, it would then be possible to define the cross-section, import the internal forces from RFEM / RSTAB, and to design the cross-section manually set the longitudinal reinforcement manually.
You can find more information about DICKQ at the following link: https://www.dlubal.com/en-US/products/silitary-section-electroducts/dickq
With DICKQ, you can freely define massive cross-sections.
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