For a concrete column (1200x240), I get the error that the transverse distance between the stirrup legs are not enough (first image). I cannot define any denser distribution of stirrup legs using the available options in RFEM:
I am using four legged stirrup, cannot increase the number of legs any more (second image), and the checkbox to add cross-ties over free rebars doesn't work when I use four-legged stirrups. Adding additional shear reinforcement objects (third image) doesn't help filling the side distances between the legs.
For the checkbox Crossties over free rebars with active selection in graphic to work correctly, you first need to select two legged stirrup types .
After that, you can activate the checkbox and graphically select the rebars where the crossties should be placed. This will certainly ensures that the design check can be performed and verified correctly.
Click on File → Save as and choose the following settings to reduce the file size:
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