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In the Grids task, click Select
on the vertical toolbar.
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Select Grid Plane in the Locate Filter box.
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Select the first Y-axis plane in the grid system of the truss to modify.
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In the Offset box, type the required value and then press Enter. Type a negative value to make the truss wider. Type a positive value to make the truss narrower.
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Select the second Y-axis plane in the grid system of the truss to modify.
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In the Offset box, type the required value and then press Enter. Type a positive value to make the truss wider. Type a negative value to make the truss narrower.
The software modifies the width of the truss as specified.
To maintain the symmetry of the truss, you must define the same offset value for
both planes, but define the values in opposite directions. Use half of the required
change in width as an offset value in each direction.
The following example shows the results of modifying the width. Illustration A shows a truss with a width of 2 m. Illustration B shows the truss after modifying the width to 3 m by offsetting 0.5 m in each direction.
