Transverse loading distribution related to micro-cracks evolution on a timber-concrete slab
Numerical simulation based on a non-linear material behaviour definition of concrete being a part of a coupled timber-concrete load-bearing system is presented in this paper. The main goal of a NL material modelling performed and introduced herein is to define the influence of concrete fragility over transverse loading distribution horizontally a locally loaded slab. The gained knowledge is consequently applied in a local fire exposure problem. Numerical simulations based on both linear elastic (LE) and non-linear (NL) material behaviour are compared with the results obtained from several real-size experiments and the effects of specific phenomena are discussed further. NL material definition of concrete is also termed as a “damaged material model” in certain references. This work is a continuation of the research performed at the Department of Civil Engineering, University of Coimbra, which’s result had been analysed and further published in paper (Dias et al. 2013) and doctoral thesis (Monteiro 2015).