Seismic analysis and conventional design

ELF seismic analysis and conventional design

The overall modeling, analysis and conventional design process using the ELF method is summarized as follows:

Modeling
- No additional seismic modeling requirements
- There is no need to assign members to a SFRS
Loading and Analysis
Run the Seismic Wizard to:
1. Determine building height to the highest level and adjust it if required
2. Set the site class (ASCE 7), or ground type (Eurocode)
3. Select ELF method of analysis (note some vertical or horizontal irregularities can prevent the use of this method
4. Set up the relevant seismic combinations
Static Design
Run the Design (Static):
- the results of the ELF seismic combinations are fed into the design and considered in the same way as other combinations.
Calculation Output
- A Seismic Design Report is available
- Drift limitations are checked

The overall modeling, analysis and conventional design process using the RSA method is summarized as follows:

Modeling
- No additional seismic modeling requirements
- There is no need to assign members to a SFRS
Loading and Analysis
Run the Seismic Wizard to:
1. Determine building height to the highest level and adjust it if required.
2. Set the site class (ASCE 7), or ground type (Eurocode)
3. Select RSA method of analysis
4. Set up the relevant seismic combinations
Static Design
Run the Design (Static):
- Results of the static combinations are fed into conventional design.
RSA Seismic Design
Run the Design (RSA):
- Results of the RSA seismic combinations are fed into conventional design and considered in the same way as the static combinations.
- No additional seismic design is required
Calculation Output
- A Seismic Design Report is available
- Drift limitations are checked