SAP2000 SAP2000 Web Tutorial 1

Note: The Number of Curves edit box indicates the number of equally spaced P-M
curves that will be used to define the interaction surface. If the Doubly Symmetric
About M2 and M3 box is checked, then the curves are equally spaced between 0
and 90 degrees. If the Doubly Symmetric About M2 and M3 box is not checked,
then the curves are equally spaced between 0 and 360 degrees.
ä Click the Define/Show Surface button to display the Interaction Surface Definition
dialog box.
ä In this dialog box:
À The spreadsheet shows normalized values of axial load, P, and moment, M.
There is one P column and five M columns corresponding to the number entered
in the Number of Curves edit box in the previous dialog box. Use the scroll bars
to see the other M columns.
Note: The axial load is normalized by the maximum axial load value. The
moments are normalized by the maximum moment value for all of the moment
curves. Thus the maximum value in the spreadsheet for both axial load and
moment is 1.
À The diagram shows the P versus M curves. Click in an M column in the
spreadsheet to see that particular P versus M curve. The M curve at Angle 0
corresponds to +M2 bending. The M curve at Angle 90 corresponds to +M3
bending.
À In the scaling area, the scale factors for both axial load, P, and moment, M, are
shown. Note that the M scale factor applies to all of the M curves.
Note: Since both P and M are normalized to 1, the P and M scale factors are the
maximum values of P and M, respectively.
11. Click the Cancel button five (5) times to exit all of the Hinge Property dialog boxes.
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