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Each partial section of a general cross-section has several parameters that may (but also may not) be adjusted independently on other parts of the general cross-section. For example, individual partial sections may be made of different material or they may be subject to different level of corrosion, etc.
The parameters are:
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Material |
This parameter specifies the material the part is made of. |
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Corrosion |
Here, the user may define that the partial section has been exposed to the elements and has been "weakened" due to corrosion. |
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Phase |
The partial section may belong to a particular phase (or stage) of the construction process. |
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Overlap |
If two partial sections overlap, this parameter says which of the two parts is of higher priority and should be taken as the leading part. The other part is then cut accordingly (see the example below). |
If corrosion is defined, the corresponding partial cross-section is drawn with a dashed line next to the outline of the section. The dashed line shows the corroded part of the section. Sectional characteristics are automatically calculated from the part of the section that has NOT corroded.
Let’s assume a general cross-section consisting of two overlapping partial sections: (i) a square and (ii) a triangle.
The square is made of concrete (will be drawn in grey colour), the triangle of steel (will be drawn in blue).
First, let’s set the overlap for the square to 1 and let the overlap for the triangle on the default value equal to zero.
The square is of higher priority, its shape is taken as the leading one, and a part of the triangle is automatically cut off.
Second, if the overlap priorities are swapped, i.e. the overlap for the square is set to 0 and the overlap for the triangle is set to 1, the result will be the opposite. The triangle will remain unaffected and a part of the square will be removed from the final cross-section.
