Seismic design parameters SDS, SD1 and design category
Enter Ss and S1 for your city from the SBC 301 maps and the site class to get Fa, Fv, SDS, SD1, the seismic design category and the response spectrum, ready for ETABS.
An assistive tool for preliminary design and learning. Review the results; final design and approval remain the responsibility of the licensed engineer of record.