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Frequently Asked Questions (FAQ)
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AnswerThe individual members of a set of members must have an identical orientation. Furthermore, the orientation of the members and the set of members must match.Solution:In the Display navigator, you can display and check the orientation of members and sets of members. Use the shortcut menu to invert the Orientation of a member or set of members (see Figure 03)
AnswerThe add-on module RF-CONCRETE Deflect is available for the calculation of state II deformations in RF-CONCRETE Surfaces.For the analytical calculation of deformations in state II, RF-CONCRETE Deflect requires a unique load situation, which is given only by using the load combinations (COs). Result combinations do not offer a clear load situation, whether additive or as an enveloped OR combination. Therefore, when applying the RC for the calculation of deformations in RF-CONCRETE Surfaces by RF-CONCRETE Deflect, you receive the mentioned error message. See Figure 01.To avoid this problem, you can simply generate load combinations (COs) instead of result combinations (RCs). If you still want to perform the ultimate limit state design with RC's, you can create a CC for each in addition to the existing RCs for which you want to calculate the deformations by means of RF-CONCRETE Deflect. See Figure 02.It is important that RF-CONCRETE Surfaces calculates the loads from the quasi-permanent design situation by default for the calculation of the deformations. See Figure 03. This means that the CO for which the deformations are to be calculated must be defined as "quasi-permanent." Alternatively, the check boxes for the settings of the design situations (see Figure 03) can be user-defined.
AnswerIt is often the case that one or more surfaces of the generated volume have double lines. In this case, the peripheral surfaces of the solid are not closed and the generation must be stopped. To find these lines quickly, the program displays a corresponding message.Solution:You can quickly find double lines with the function "Tools → Model Check → Overlapped Lines". In this tool, you can also display the line pairs as an Excel list or create partial views (see highlighted buttons in Figure 02).However, it is often the case that the lines can not be deleted easily because they are assigned to different objects. If you delete one of the lines, z. For example, a surface is deleted as well. It is therefore recommended to check for all structural components if the lines can be deleted and if necessary change the boundary lines.
AnswerCheck if you entered "Nonlinearities" in your structure. For example, "Failing supports", "Nonlinearities (compression or tension members)" or "Nonlinear material behavior" (see Figure 01).This warning appears as soon as you try to add load cases for result-combinations in such structures (see Figure 02).When adding load cases of the result combination (RC), only the results of the individual load cases are added. This means that you may not be able to represent the "Nonlinearities" correctly because a member may not be displayed correctly. For example, it fails in one load case, but does not in another load case. When using RC's, you would thus add up the results from different structural systems. This leads to incorrect results.In these cases, use the load combinations (COs). In this case, a large load case (load combination) will be created and this load situation combined is calculated. Allows for correct representation of nonlinearities in the structure.As an alternative - if a calculation with the RCs is required due to the calculation time - you can consider whether the nonlinearities will be absolutely necessary.
AnswerBefore you can start the calculation in the add-on module, you should check each tab. This message appears if you have not opened the calculation parameters of the natural mode case at least once. Although a bulk case has been defined, it has not yet been assigned to the natural mode case.
AnswerThe reason for this error message is the wrong title of the excel-sheet. The sheet with the acceleration data should be named "Acceleration Data" so that the module knows in which sheet the data is contained.
AnswerThe intersection point of the lines named in the warning must be created with the function "Connect Lines / Members". To do this, select the function "Connect Lines / Members" and then draw a window across the elements to be trimmed (see Figure 3).
AnswerThe error 12303 means that the generated load via Tools - Generate Loads on Member does not find a member or is badly defined on a certain member.You can control the generated load in column 3.15 or via double click to the load. In this dialogue you can select the edge nodes to correct the defined area.
AnswerThe reason for the error message is the different heights of the floor slabs.In picture 1 you can see that the program has several levels of soil layergenerated to the soil layer between the individual soil samples. By the different onesHeights of the floor slabs would theoretically hang some surfaces in the air (thus the error message).There is a function in RF-SOILIN that can describe additional geological regions (see Figure 2 and Figure 3).
AnswerOne reason for the error message may be that bedded bars have been broken down into areas. These bars are then converted to zero bars. However, the barbed remains intact and remains assigned to the zero bars (see Figure 2). Adaptive network compression can then often no longer be carried out. It is therefore advisable to first remove the rod bedding on the affected rods.
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