RSA seismic results
For information on how RSA seismic results are displayed for different loadcases and combinations, see the following paragraphs.
Result Type
When the result type is 1st or 2nd order RSA seismic, the results that can be displayed depend on the type of the currently selected loadcase or combination.
Mode Shapes
Mode shapes can be displayed for:
- Effective seismic weight combination:
- List of all modes returned by the modal analysis
- RSA torsion loadcases
- Static loadcases included in the RSA seismic combination
- RSA seismic loadcases and combinations
See also:
Support Reactions
Support reactions are displayed as follows:
| Loadcase or combination | Display method |
|---|---|
| RSA seismic loadcases | Combined (CQC) or combined (SRSS), depending on
your choice in Analysis Settings: Absolute values are determined at each support and the result is displayed as both positive and negative. All relevant modes: A standard diagram is displayed. |
| RSA torsion loadcases | A standard diagram is displayed. |
| Static loadcases included in the RSA seismic combination | A standard diagram is displayed. |
| Effective seismic weight combinations | Not available |
| RSA seismic combinations | The diagram displays two values at each support:
|
See also:
1D Element Results
1D element results (and Load Analysis View
results) are displayed as follows:
| Loadcase or combination | Display method |
|---|---|
| RSA seismic loadcases | Combined (CQC) or combined (SRSS), depending on
your choice in Analysis Settings: Absolute values are determined at various points along each member and displayed on both the positive and negative side of the diagram. Therefore, the diagrams are always symmetrical about the base line. All relevant modes: A standard enveloped diagram is displayed. |
| RSA torsion loadcases | Displayed as per 1st order linear analysis. |
| Static loadcases included in the RSA seismic combination | Displayed as per 1st order linear analysis. |
| Effective seismic weight combination | Not available |
| RSA seismic combinations | An envelope is drawn displaying the seismic
results above and below the static result:
|
See also:
Story Shear
Story shears are displayed as follows:
| Loadcase or combination | Display method |
|---|---|
| RSA seismic loadcases | Combined (CQC) or combined (SRSS), depending on
your choice in Analysis Settings: Absolute values are determined at each position of interest and the result is displayed as both positive and negative. All relevant modes: A standard diagram with a single value at each point of interest is displayed. |
| RSA torsion loadcases | Displayed as per 1st order linear analysis. |
| Static loadcases included in the RSA seismic combination | Displayed as per 1st order linear analysis. |
| Effective seismic weight combination | Not available |
| RSA seismic combinations | The diagram displays two values at each point of
interest:
|
See also:
Seismic Forces
The magnitude and distribution of forces for the seismic accidental torsion loadcase can be displayed.
Note that a static analysis is used for seismic accidental torsion irrespective of whether an ELF or RSA method has been used.
Concrete Wall Results
Concrete wall results are displayed as
follows:
| Loadcase or combination | Display method |
|---|---|
| RSA seismic loadcases | Combined (CQC) or combined (SRSS), depending
on your choice in Analysis Settings: Absolute values are determined at points along the wall line and displayed on both the positive and negative side of the diagram. Therefore, the diagrams are always symmetrical about the wall line. All relevant modes: A standard diagram is displayed. |
| RSA torsion loadcases | A standard diagram is displayed. |
| Static loadcases included in the RSA seismic combination | A standard diagram is displayed. |
| Effective seismic weight combinations | Not available |
| RSA seismic combinations | An envelope is drawn displaying the seismic
results above and below the static result:
|