Dynamic response of reinforced concrete sheds against the impact of rock block with different shapes and angles

This study aimed to quantitatively identify the influence of block impact angle and shape on effect reinforced concrete (RC) sheds. The smooth particle hydrodynamic (SPH) method finite element (FEM) were coupled used solve simulation difficulty large deformation sand buffer layer in RC shed. SPH was simulate area that experienced deformation. Concrete, reinforced, bedrock, non-impact simulated by FEM. accuracy model verified full-scale test data. Finally, forces dynamic responses shed analyzed, focusing effects shape. numerical results show SPH-FEM is effective for simulating how impacts can significantly normal tangential forces. design based assumption blocks as free-falling spherical projectiles lead inaccuracy some scenarios, an appropriate correction put forward available empirical calculating formulae include irregular block. dissipates a part energy, which accounts at least 58% initial energy.