Analysis axis options

Tekla Structures
2021
Tekla Structures

Analysis axis options

Use the options in the Axis list on the Position tab in a part’s analysis properties dialog box to define the location of the analysis part in relation to the physical part.

Option

Description

Use for

Neutral axis

The neutral axis is the analysis axis for this part. The location of the analysis axis changes if the profile of the part changes.

Reference axis (eccentricity by neutral axis)

The part reference line is the analysis axis for this part. The location of the neutral axis defines the axis eccentricity.

Reference axis

The part reference line is the analysis axis for this part.

Top left

The analysis axis is located in the top left corner of the part.

Beam objects (beams, columns, braces)

Top center

The analysis axis is located in the top center point of the part cross section.

Beam objects

Top right

The analysis axis is located in the top right corner of the part.

Beam objects

Middle left

The analysis axis is located in the middle of the left side of the part.

Beam objects

Middle center

The analysis axis is located in the center point of the part cross section.

Beam objects

Middle right

The analysis axis is located in the middle of the right side of the part.

Beam objects

Bottom left

The analysis axis is located in the bottom left corner of the part.

Beam objects

Bottom center

The analysis axis is located in the bottom center point of the part cross section.

Beam objects

Bottom right

The analysis axis is located in the bottom right corner of the part.

Beam objects

Top plane

The analysis axis is bound to the top plane.

Plate objects (plates, slabs, panels)

Middle plane

The analysis axis is bound to the middle plane.

Plate objects

Bottom plane

The analysis axis is bound to the bottom plane.

Plate objects

Left plane

The analysis axis is bound to the left plane.

Plate objects

Right plane

The analysis axis is bound to the right plane.

Plate objects

Middle plane (of left/right)

The analysis axis is bound to the middle plane of left/right.

Plate objects

Tekla Structures uses the options above for each part when you select Model default from the Member axis location list in the Analysis Model Properties dialog box.

If you select Neutral axis, Tekla Structures takes the part location and end offsets into account when it creates nodes. If you select either of the Reference axis options, Tekla Structures creates nodes at part reference points.

Tip:

You can also use keyboard shortcuts to move the selected analysis part in relation to the physical part.

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