SAP2000 SAP2000 Web Tutorial 1

18. All of the load cases in the Select Output dialog box should be selected (higlighted). If they
are not, then click on each one while holding down the Ctrl key to select them. Click the OK
button to accept this selection.
Note: If we wanted to, we could select only one, or a few load cases, instead of all of them.
19. From the Display menu select Show Group Joint Force Sums… to display the Select
Groups dialog box.
20. In that dialog box click on the ROOFSHR group to highlight it and click the OK button.
Note: We could select more than one group at this time if we wanted to.
21. The group joint force sum for the ROOFSHR group is displayed for each load case. The Y-
direction force transferred from the roof diaphragm to joints 19, 23, 26 and 27 in static load
case EQY is the FY force for load EQY.
Note: We can use groups to define section cuts through shell elements (and frame elements)
at any location and then use the Group Joint Force Sum feature to see the forces acting
at that section cut. To do this, imagine a section cut through the structure. The section
cut may be through the entire structure or through a portion of the structure. Select all of
the elements that the section cut passes through, and select all of the joints connected to
those elements on one side of the section cut. Note you must select both the shell and/or
frame elements and the joints. Define a group that includes all of the selected items. Use
the Show Group Joint Force Sum option on the Display menu to show the forces at the
section cut.
22. We can display the base shear using the BASE group we previously defined. From the
Display menu select Show Group Joint Force Sums… to display the Select Groups dialog
box. In that dialog box click on the BASE group to highlight it and click the OK button.
23. Click the Set Elements button on the main toolbar (or select Set Elements… from the
View menu). This displays the Set Elements Dialog box.
24. In this dialog box uncheck the Labels box in the Joints area, uncheck the Labels box in the
Shells area and click the OK button. This will turn off the display of joint labels and shell
labels.
25. We can display output tables of element forces on the screen.
26. From the Display menu select Set Output Table Mode… to display the Select Output
dialog box.
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