Driven by the rise of innovative materials such as non-metallic reinforced components, there is a general trend to rethink the design of structural concrete buildings and allows conceiving the construction of those. Inspiration from biology is leading to new ways to build lightweight, resource-efficient components with optimized strength. Compared to their conventional steel counterparts, these reinforcements offer superior flexibility in geometric shape, while at the same time offering higher corrosion resistance. The construction necessitates the utilization of advanced simulation techniques for structural analysis. On the one hand, micromechanical mechanisms have to be investigated which take into account the material behavior of the components and their interaction. On the other hand, simulation methods for the analysis of curved, lightweight construction elements need to be developed. At all levels of analysis, a high degree of accuracy and efficiency is required to exploit the material properties to the optimum. Topics of interest include (but not limited to) • Material modelling of concrete and the interface between concrete and reinforcement, • Methods for the analysis of debonding, fracture and failure, e.g. phase field or X-FEM approaches, • Simulation methods for thin, curved structures, • Homogenization, multi-scale modeling and mixed-dimensional substructure modeling, • Model order reduction techniques in quasi-static, inelastic analysis, • Topology optimization of slender structures, • Experimental investigation and validation of numerical methods. This mini-symposium aims to convene researchers specializing in the field of modelling structural concrete and to provide a platform for the exchange of interdisciplinary knowledge. The primary focus is on advanced simulation techniques tailored for slender and brittle concrete structures.