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Figure 01 - Calculation Parameters Dialog Box, c/t-Parts Tab and Effective Cross-Section

FAQ 003430 EN

7 August 2019

Sonja von Bloh Modeling | Structure SHAPE-THIN Steel Structures Aluminium Structures Eurocode 3 Eurocode 9

How is carried out the automatic creation of c/t-Parts?

Answer

In the 'c/t-Parts and Effective Cross-Section' tab of the 'Calculation Parameters' dialog box, you can define settings for the automatic creation of c/t-Parts.
It is also possible to specify an angle from which a support should be created between two elements. In case that the angle for connection of elements is smaller, they are considered as an interconnected c/t-Part. Stiffeners (longitudinal ribs, slopes (lips), or bulges, etc.) are not recognized by the program during the automatic generation of the c/t-Parts. The c/t-Parts have to be adjusted manually. The changes can be made in Table '1.7 Cross-Section Parts for Classification' or in the 'Edit c/t-Part' dialog box.
The check box with the reference to Element is 'significant' controls whether a curved element is considered as a c/t-Part. If the length of the arc is larger than the diameter entered here, it cannot be neglected.
A corresponding error message appears before the calculation.
The option Element ist 'straight' refers to curved elements. Arcs are normally excluded from the determination of the effective widths because the standards do not provide clear specifications. A curved element is assumed to be straight if the ratio of connecting line (start/end node) to element length is higher than the specified value.

Keywords

c/t-Part b/t-Part

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Cross-Sections Thin-Walled
SHAPE-THIN 8.xx

SHAPE-THIN 8.xx

Cross-Section Properties Software

Section properties, stress analysis, and plastic design of open and closed thin-walled cross-sections

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