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A thin-walled cross-section is a section defined by its centreline (or midline) and the width. If a cross-section is supposed to have segments of different width, it must be defined as consisting of two (or more) partial and interconnected sections.
Even a thin-walled cross-section may be subject to corrosion. It should be stated, however, that in SCIA Engineer the corrosion affects only the thickness of the section. The length of the midline remains unaffected by the corrosion.
Opening may also be defined in a thin-walled cross-section. It is possible to just cut (shorten) a thin-walled section or even make a whole in it (even though this may be considered strange from the practical point of view).
For more information about openings in a thin-walled section, see chapter Thin-walled versus solid cross-section.
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Name |
Specifies the name of the polygonal. It is used for easier orientation especially if the final cross-section consists of a larger number of partial sections. |
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Type |
This parameter cannot be changed and indicates the type of the partial section. |
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Material |
See chapter Properties of the partial cross-section. |
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Corrosion |
See chapter Properties of the partial cross-section. |
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Thickness |
Specifies the thickness of the section web. |
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Alignment |
The "definition" line may be either the mid-line of the section, or its left or right surface line. |
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Phase |
See chapter Properties of the partial cross-section. |
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Overlap |
See chapter Properties of the partial cross-section. |