Portland State University. Department of Civil and Environmental Engineering
Date of Award
Master of Science (M.S.) in Civil & Environmental Engineering
Civil and Environmental Engineering
Laminated wood -- Testing, Wooden building -- Technological innovations, Earthquake resistant design
A beam-to-column connection consisting of glulam beam and column and cross laminated timber floor slab was developed and experimentally evaluated for use in buildings that are expected to undergo earthquake-induced lateral drift. The connection utilized a passive gap closure mechanism designed to allow beam rotations during lateral drift while minimizing residual separation between the beam and the column following an earthquake. Full scale cyclic experiments were used to validate the connection’s minimal rotational stiffness and demonstrate low damage performance for lateral drifts exceeding 4.5% drift. The connection exhibited no degradation in gravity load capacity throughout the imposed lateral deformations. An analytical model was developed and presented to describe the behavior of the connection including the gap closure mechanism. The experimental data showed that the developed beam to column gravity connection can be a viable seismically resilient solution for mass timber buildings located in medium to high seismic hazard.
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Williams, Tyler James, "Lateral Deformation Behavior of Mass Timber Beam to Column Gravity Connection" (2018). Civil and Environmental Engineering Master's Project Reports. 44.