Recent development in CLT connections part I: In-plane shear connection for CLT bracing elements under static loads

Abstract

Cross-laminated timber (CLT) is already being used successfully in residential, commercial, and industrial buildings. The use of computerized numerical control (CNC) automatic processing machines and high degree of prefabrication in combination with relatively large elements lead to short erection time on building site and to potentially cost-effective constructions. High in-plane shear strength and stiffness of the CLT itself make CLT members especially suited for bracing elements with in-plane loads. However, some available connection techniques show limited load-carrying capacities and stiffness values in comparison with the shear capacity of CLT. To better use the potential of CLT under in-plane loading, so called contact joints were developed with increased stiffness and load-carrying capacities using CNC automatic processing machines.