Simplified modal response spectrum analysis for 2D frames Gómez Martínez, Fernando Modal analysis Seismic engineering Modes of vibration Participating mass Effective mass Participation factor Base shear Stiffness MDOF Response spectrum analysis Application for the simplified response spectrum analysis and calculation of modal properties of 2D MDOF systems by solving the eigenvalues problem 2023-01-23T07:37:35Z 2023-01-23T07:37:35Z 2023 other https://hdl.handle.net/10481/79222 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional