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Changing the cross-section of a beam

If required, it is possible to change the cross-section of a beam even after some reinforcement has been input into this beam. If the shape of the cross-section remains the same and only the dimensions are different (even the proportion of individual dimensions may be changed), the change of the cross-section has no negative effect on the existing reinforcement. Since the reinforcement is based on templates (shear reinforcement templates and longitudinal reinforcement templates), the program is capable of handling the change of the cross-section. The distribution of reinforcement across the section is kept and only the distance between individual bars is adjusted to comply with the new dimensions. The size of cover is unchanged as well.

If however, the shape of the cross-section is changed (e.g. from a rectangle to I-shape), all the existing reinforcement in the affected beams is removed and must be input again.

The procedure to change a cross-section

1. Use the Cross-section manager to prepare the new cross-section.

2. Select the beam whose cross-section is to be changed.

3. In the Cross-section item of the Property window select the new cross-section.

4. Clear the selection.

5. Verify that the reinforcement in the new section is what expected and required.

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