Plastic Deformation Contributions of CLT and LTF Shear Walls: Development of an Analytical Capacity Model

Abstract

This paper compares the experimental cyclic response of Cross-Laminated Timber and Light Timber Frame shear walls. The goal is extracting the fractions of the lateral displacement due to sliding, panel's deformation and rocking. The three contributions to the total displacement, expressed in percentage, are then used to develop an analytical capacity model valid for CLT and LTF shear walls. The model is based on the sole equilibrium equations of the holddown forces, obtained by reducing the pivot length of the hold downs reactions. Additionally, they examine the overstrength of the CLT panel, and LTF sheathing to the shear walls collapse due to the hold-down failure.