Appendix_1and2 – Supplemental material for Modal parameter identification of a spectator–grandstand interaction model under different rhythmic activities

Supplemental material, Appendix_1and2 for Modal parameter identification of a spectator–grandstand interaction model under different rhythmic activities by Javier Naranjo-Pérez, Javier Fernando Jiménez-Alonso, Felipe García-Sanchez and Andres Sáez in Advances in Structural Engineering