A series of friction tests were conducted to examine the friction coefficients at the interfaces between cross-laminated timber (CLT) and concrete, and between CLT and steel. The test parameters were the fiber orientation of the CLT surface, and the magnitude of compressive force on the interfaces. The results indicated that the friction coefficients were 0.30 to 0.41 for the CLT–concrete interface, and 0.45 to 0.54 for the CLT–steel interface. The fiber orientation on the CLT surface had little effect on the friction coefficient. Additionally, the influence of the compressive force on frictional behavior was found to be limited.
HUANG et al. (Thu,) studied this question.