Concrete members which will be designed by the program must have certain section properties input under the MEMBER PROPERTY command. These are the D (YD) and b (ZD) dimensions for rectangular or square cross sections and the D (YD) for circular cross sections.

The following is an example the required input:

UNIT MM
MEMBER PROPERTY
1 3 TO 7 9 PRISM YD 450. ZD 250.
11 13 PR YD 350.

In the above input, the first set of members are rectangular (450 mm depth and 250 mm width) and the second set of members, with only depth and no width provided, will be assumed to be circular with a 350 mm diameter.