DIAPHRAGM FORCES
1.- Applied diaphragm forces (define diaphragm using semi-rigid option)
1 2.- Display any stress or shell force for the relevant load case
2 3.-For maximum chord forces, Draw or define a section cut where maximum chord forces are expected
3 4.- Moments in Z are the in-plane moment in slab make sure angle is zero, refresh as required
4 5.- The value of Z moment divided by slab width is equal to compression and tension chord forces
5
6.- Shear and collector forces at slab-shear wall connection , draw or define section cut next to support following wall direction
6 7.- Make sure angle is zero, in this case shear/collector force is equal to F2 or 2559lbs as expected
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