GRAVITY-FORCE RESISTING SYSTEM FLEXURAL STIFFNESS MODIFIERS FOR SEISMIC ANALYSIS OF TALL REINFORCED CONCRETE SHEAR WALL BUILDINGS by Camilo Sebastian Granda Valencia B.Sc., Universidad San Francisco de Quito, 2018 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF APPLIED SCIENCE in THE FACULTY OF GRADUATE AND POSTDOCTORAL STUDIES (Civil Engineering) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) March 2022 © Camilo Sebastian Granda Valencia, 2022