Structural Performance of Steel Fiber Reinforced Concrete Slab with the Steel Deck-Plate

데크플레이트를 이용한 강섬유콘크리트 슬래브의 구조성능

Slab is one of the most influential members in whole structure because the number of members are increased in proportion to the number of stories. So the structural type of slab can largely influence on the whole construction period and amount of materials. This study suggest the slab system consist of structural deck-plate and steel fiber reinforced concrete for improving construction ability and reduction of construction period. Structural deck-plate can replace the tensile reinforcement and concrete form, and steel fiber can replace the temperature reinforcement. Total 5 slab specimens were tested for analyzing the structural performance and serviceability. This paper analyzed the test data in the viewpoints of flexural strength, stiffness, deflection, crack and failure pattern. Test results indicated that slab with structural deck-plate has good flexural strength ratio and greatly increase the flexural stiffness compared with normal concrete slab. And it can also reduce the cracking height, and represent the good dispersion of it. The performance of slab with steel fiber reinforced concrete and deck-plate is appeared to be similar or better to the slab with wire-mesh and deck-plate.