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Lepine-Lacroix, Sebastien

University of British Columbia

The use of mass timber structures has considerably grown in recent years. This has increased the demand for sustainable, resilient, and high-performance mass timber structural systems. In this thesis, a novel self-centering balloon-type cross-laminated timber (CLT) shear wall system named the dual-pinned self-centering coupled CLT shear wall (DSCW) is proposed for tall buildings. The DSCW consists of two sets of CLT panels that are pinned at their base and coupled to one another using self-centering friction dampers. Optional V-shaped truss assemblies can also be used at the base of the panels. This thesis also presents a procedure that can be used to design the DSCW. This procedure is a modified version of the equivalent energy design procedure (EEDP). It ensures that the DSCW meets different roof displacements targets and performance objectives at various shaking intensities. The procedure was used to design the DSCWs of a 12-story prototype building located in the high-seismicity region of Vancouver (Canada). The DSCWs of the prototype building were numerically modeled and subjected to nonlinear time history analyses as well as to an incremental dynamic analysis. The results of these various analyses demonstrate that the DSCWs of the prototype building achieve the target roof displacements and performance objectives. The results also show that the DSCWs meet the seismic performance requirements of FEMA P695.

Text

2022-08-16

Attribution-NonCommercial-NoDerivatives 4.0 International

http://hdl.handle.net/2429/82366

Civil Engineering

University of British Columbia

UBCV

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