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SAP2000 SAP2000 Web Tutorial 1

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• In the Force-Displacement spreadsheet and diagram area:<br />

ä Note that the symmetric check box is checked and that the hinge property forcedisplacement<br />

diagram is symmetric. In the diagram, the axes are shown in red. The<br />

horizontal axis is displacement and the vertical axis is force.<br />

Note: When the symmetric check box is<br />

checked, the upper portion (points<br />

B-, C-, D- and E-) of the input<br />

spreadsheet for the hinge forcedisplacement<br />

properties is gray.<br />

You can not edit these values; they<br />

are automatically picked up from<br />

symmetry with points B, C, D and E.<br />

ä Change the Force/Yield value for point<br />

C from 1.25 to 1.5 by typing 1.5 into the<br />

appropriate spreadsheet cell and then<br />

clicking in any other spreadsheet cell.<br />

Force<br />

A<br />

B<br />

D<br />

C<br />

Displacement<br />

E<br />

ä Note the change in shape of the force-displacement diagram. The diagram is scaled<br />

to fit within the plot area.<br />

ä Note that the Force/Yield value for point C- has changed also from -1.25 to -1.5.<br />

ä Uncheck the symmetric check box by clicking it. Note that points B- through E- are<br />

no longer gray. Also note that in the Acceptance Criteria area, the Negative column<br />

is no longer gray.<br />

ä Change the Force/Yield value for point C- from -1.5 to -2 and click in another<br />

spreadsheet cell. Again note the change in shape of the force-displacement diagram.<br />

• In the Scaling area note that the Calculate Yield Force and Calculate Yield Displacement<br />

check boxes are checked by default. This means that the program will automatically<br />

calculate these values. We could, for example, overwrite the yield force by unchecking<br />

the Calculate Yield Force check box and typing in an appropriate value in the Yield<br />

Moment edit box. For this tutorial we will accept the default and have the program<br />

calculate the yield values.<br />

• In the Acceptance Criteria area we will also accept the default values. Note that since the<br />

Symmetric box is not checked both Positive and Negative values are input. If the<br />

Symmetric box was checked, only Positive values would be input (the Negative column<br />

would be gray and inactive).<br />

Note: The acceptance criteria are input as the ratio of displacement over yield<br />

displacement, similar to the force-displacement spreadsheet.<br />

<strong>SAP2000</strong> <strong>Web</strong> <strong>Tutorial</strong> 1 88

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