I get an implausible result with the expression "1.#Y" in the RF-/ALUMINUM add-on module .
How can I fix it?

Answer

This kind of result may occur if the limit internal forces of the cross-section can not be determined. In most cases, the problem consist in a wrongly defined cross-section or in the selection of an unsupported cross-section. Please check if you have selected a cross-section allowable for the aluminum structure in the add-on module. These include rolled cross-sections and parametric thin-walled cross-sections.


The cross-section HK 120/40/5/5/5/5 shown in Figure 01 is not an allowable cross-section because it has been selected from the range of solid cross-sections (concrete components).
In this case, you have to change the cross-section to TO 120/40/5/5/5/5.

When designing in the RF-/ALUMINUM, please note that it is necessary to select a material which also involves thicknesses used for the cross-sections. A material that is only allowed up to t=3 mm can not be used for a cross-section with t=5 mm.

Keywords

Implausible result Wrong cross-section type 1 #J

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RSTAB Steel and Aluminium Structures
ALUMINUM 8.xx

Add-on Module

Design of aluminium members according to Eurocode 9

Price of First License
1,480.00 USD
RFEM Steel and Aluminium Structures
RF-ALUMINUM 5.xx

Add-on Module

Design of aluminium members according to Eurocode 9

Price of First License
1,480.00 USD