Abstract:
The steel plate has the characteristics of high strength, good ductility and good energy dissipation. The steel lined concrete slab structure is a good anti-shock protection structure when the steel plates add to the concrete slab. So it is widely used in protective engineering such as the protective shell of nuclear power station, this structure can resist the impact of commercial aircraft. When the steel-lined concrete slabs are impacted by commercial aircraft, the steel-lined slabs can limit the transverse integral deformation of the structure effectively. And the post-steel-lined slabs can also prevent the concrete slabs from breaking and splashing. For studying the impact resistances of steel-lined concrete slab structure, in this paper, three numerical models of steel-lined concrete slabs are established according to the different arrangement of steel linings, and the performance of these models under the impact of Boying 707-320 commercial aircraft is simulated by software. the research technique is load time history analysis. The results show that compared with the front side of concrete slabs, more attention should be paid to strengthening the protection on the back side of the slabs. Therefore, proper increase of the thickness of the steel lining slabs can effectively improve the protective performance of the steel-lined concrete slab structures.