Joints - Results

When the model is solved, there are several groups of results specifically for the joints. Story Drift calculation results are discussed in Drift Results, the others are discussed here.

Joint Deflections Results

Access the Joint Deflections Spreadsheet by selecting it from the Results Menu.

These are the deflections, or displacements, for every joint in the structure. Each joint has 3 values calculated, 1 for each of the 3 global degrees of freedom. Those being 2 translations and 1 rotations. The units for the displacements are shown at the top of each column. The rotations are shown in units of radians (1 radian = 57.3 degrees, approximately).

For enveloped results the maximum and minimum value for each displacement is listed. The load combination producing the maximum or minimum is also listed, in the "lc" column. To include a particular Load Combination in the envelope analysis, open the Load Combinations Spreadsheet and check the box in the Solve column.

The moving load results are enveloped and will display the Load Combinations with maximum and minimum values shown for each section location, for each active member. The governing load combination and step location is shown for each result value under the "LC" column. The first number is the load combination, the second is the step number: (load combination - step number). See Moving Loads to learn more.

Note

• See Spreadsheet Operations to learn how to use Find, Sort, and other options.
• See Model Display Options - Joints to learn how to plot joint results. You will NOT be able to plot the deflected shape for an envelope analysis. This is because the various maximum and minimum displacements probably correspond to different load combinations, so a deflected shape based on these values would be meaningless.
• You can see the deflection results for a joint in any model view by moving your mouse near the joint and then reading the deflection results from the right hand section of the status bar. The joint displacement reported will coincide with the joint nearest to the tip of the mouse pointer.

Joint Reaction Results

Access the Joint Reactions Spreadsheet by selecting it from the Results Menu.

The Point Reactions are grouped into two tabs, you can view the results by load combination or by envelope. These are the reactive forces applied to the structure at its points of support. A positive reaction is applied in the direction of the global axis and a negative reaction is applied in the direction opposite the global axis. A positive moment is given according to the right hand rule assuming the thumb is pointing in the positive global axis direction. Assuming a reaction has been calculated at all points of support, the total of the reactive forces in each direction should equal the total applied force in each direction. The units for the reactions are listed at the top of each column, and a total reaction for each direction is summed at the bottom of each translation column.

Wall Panel Reactions represent the total reactions for the wall about the bottom center of the wall. This location does not change even if the center of the wall is within an opening, or if the edge of the wall is restrained as well as the base.

The last line provides the center of gravity (COG) for the applied loads. This "COG" is based on the load components acting in the VERTICAL direction. If there are no vertical loads in the combination a "COG" will not be calculated.

For enveloped results the maximum and minimum reaction value is listed. The load combination producing the maximum or minimum is also listed, in the "LC" column.

The moving results loads are enveloped and will display the Load Combinations with maximum and minimum values shown for each section location, for each active member. The governing load combination and step location is shown for each result value under the "LC" column. The first number is the load combination, the second is the step number: (load combination - step number). See Moving Loads to learn more.

Note

• See Spreadsheet Operations to learn how to use Find, Sort, and other options.
• See Model Display Options – Joints to learn how to plot joint results.
• An 'NC' listing means "No Calculation". This occurs for boundary conditions defined with the 'Fixed' option and joints with an enforced displacement in that degree of freedom.