3D Numerical Analysis Method for Simulating Collapse Behavior of RC Structures by Hybrid FEM/DEM

Recent years have seen an increase in demand for the demolition of obsolete and potentially hazardous structures, including reinforced concrete (RC) using blasting techniques. However, because risk failure is significantly higher when applying to demolish RC structures than mechanical dismantling, it critical achieve optimal design conditions by taking into account major factors affecting a structure’s demolition. To this end, numerical analysis techniques frequently been used simulate progressive resulting collapse structures. In study, three-dimensional (3D) combined finite discrete element method (FDEM), which accelerated parallel computation technique incorporating general-purpose graphics processing unit (GPGPU), was coupled with one-dimensional (1D) reinforcing bar (rebar) model as simulation tool simulating process structure blasting. Three-point bending tests on beams were simulated validate developed 3D FDEM code, calibration input parameters fracture beam accurately. The effect elements size part beam’s also discussed. Then, code small-scale structure. results compared actual experimental found be highly consistent.