Development of Creep Deformations during Service Life: A Comparison of CLT and TCC Floor Constructions

Cross-laminated timber (CLT) slabs in residential buildings need additional weight, e.g., the form of screeds or gravel layers, to fulfill criterion for highest impact-sound class. The mass is, however, not exploited load bearing behavior, but adds weight and leads an increased height floor construction. In this study, such a CLT construction with 380 mm is compared composite slab consisting plate concrete layer on top 330 mm. (TCC) has different creep behavior than slab. Thus, development time-dependent deflections over service life are interest. A straightforward hybrid approach developed, which exploits advanced multiscale-based material models individual layers standardized structural analysis method model its linear behavior. introduced allows investigate redistribution between structure evolution deflection during life. investigated types show similar after 50 years, while time different. smaller overall stiffness at beginning decrease TCC