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Frequently Asked Questions (FAQ)
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AnswerThe difference may be due to the dimensions of the standard wrench. Due to this, minimum dimensions are required in some places, which prevent the exact adjustment.RF- / FRAME-JOINT Pro checks whether the wrench dimensions allow the connection to be mounted. The standard dimensions or a user default can be used here.To ensure screwability, the dimensions D and L of a common socket wrench insert, as well as b and h of a torque wrench, are shown.However, you can change these dimensions to the desired dimensions. To open the corresponding dialog box, use the "Details" button and the button labeled "Spanner Dimensions" (see Figure 1).
AnswerTo determine the effective lengths, the auxiliary values λ1 and λ2 are required.
These two values are used to obtain an α-value from Figure 6.11 of EN 1993-1-8, which is then used to calculate the effective lengths (for non-circular flow lines) of the T-stub flanges.
The maximum value for λ1 is 0.9 and the maximum value for λ2 is 1.4 -> see picture 6.11 of EN 1993-1-8
Out of your geometry, however, there is, for example, a λ2 of> 1.4 for the front plate
However, α can only be calculated with the maximum value of 1.4.
The easiest way to find the internal forces at these nodes is to print the pictures of members into the printout report.
If this solution is not an option, you can also find the values in the result table 4.1 in the printout report. Since the extreme values are only activated by default, it is still necessary to activate nodal values in the selection.
It is usually not reasonable to include the internal forces of all member in the printout report. Therefore, you can only select the members that are relevant to you.
After starting the calculation, RF-/FRAME-JOINT Pro appears in the "1.4.1 Beam on the right - Part 1" window and the following error message appears: "The value is out of the allowed range. Design Value: 6.00 - Min. value: 7.50". There seems to be no correlation with this window. What is the mistake?
The beam is a rolled section with welded taper from sheets or an I-section. In order to use such a cross-section in RF-/FRAME-JOINT Pro, the web thickness of the welded component has to have at least the same value as the main cross-section web.
Columns consist of a parametrized I-section (welded section). To use such a cross-section in RF-/FRAME-JOINT Pro, it is necessary to enter the web weld thickness as well. On the one hand, the weld in tension area is designed in RF-/FRAME-JOINT Pro; on the other hand, your thickness is also used in the calculation of effective lengths of the T-stub.
This warning points out, that the web thickness in the curtailed beam is smaller than the upper web of the cross-section. Web thicknesses of curtailed cross-sections have to be at least equal.
The following should be take into account to arrange the end plate of a column in an inclined position:
- The beam located to the left and to the right of the column should have no member eccentricity.
- The beam inclination to the left and to the right of the column has to be identical.
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