4.14Define Rigid Diaphragms

•From the Process menu, choose Rigid Diaphragm.

•From the ELEVATION drop-down list, select 18. All horizontal members (beams) that exist at that elevation are displayed in the MEMBER LIST list box.

4-13.png 

Figure 4-13 Define Rigid Diaphragms

•Choose INCLUDE ALL. The horizontal members are added to the SELECTED MEMBERS list box.

•From the ELEVATION drop-down list, select 33. All horizontal members that exist at that elevation are displayed in the MEMBER LIST list box.

•Choose INCLUDE ALL. The horizontal members are added to the SELECTED MEMBERS list box.

•Choose OK.