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Sainz Albanez, Guillermo

University of British Columbia

A building can be divided into two main components: the seismic-force resisting system (SFRS), responsible for withstanding seismic forces, and the remaining structure, often referred to as the gravity-load resisting frame (GLRF). Although the GLRF is not designed to resist seismic forces directly, it must be designed to accommodate the seismic deformation demands of the entire structure. The Canadian building code, specifically CSA A23.3 Clause 21.11, outlines requirements for designing the GLRF. These requirements are relatively new and have not seen widespread adoption in engineering practice. Design engineers have faced challenges in efficiently performing the required calculations. This thesis explores various methods to apply the specified interstorey drift envelope from CSA A23.3 to shear wall buildings' GLRF. It offers practical recommendations for using the computer program ETABS to impose the necessary lateral displacements. The thesis includes a comprehensive building design case study that demonstrates the proposed procedure and examines the design criteria for the GLRF in typical shear wall buildings, exploring various GLRF configurations. Additionally, the 2020 edition of the National Building Code of Canada (NBCC) introduces new requirements for designing the GLRF of buildings exceeding 30 metres in height in seismic category SC4 (regions of high seismicity, such as the lower mainland of BC). A case study is conducted to assess the implications of these new requirements, which have been adopted in BC in March 2024.

Text

2024-01-15

Attribution-NonCommercial-NoDerivatives 4.0 International

http://hdl.handle.net/2429/87283

Civil Engineering

University of British Columbia

UBCV

http://creativecommons.org/licenses/by-nc-nd/4.0/