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An Experimental Study on Structural Behavior of Half Slab Reinforced by Truss Mesh

트러서메쉬 보강 하프 슬래브의 구조적 거동에 관한 실험적 연구

  • 고만영 (성균관대학교 대학원 건축공학과) ;
  • 김용부 (성균관대학교 건축공학과) ;
  • 박현수 (단국대학교 건축공학과) ;
  • 정란 (단국대학교 건축공학과)
  • Published : 1995.08.01

Abstract

This paper summarizes experimental results for studying feasibility and structural behavior of' a half slab which is getting popularity in recent building construction in favour of the savings in manpower, coats, and construction period. 17 specimens were tested to investigate and analyze the flexural strength of precast concrete slab, half slab, and half slab-wall joint. The primary variables of the testing program were: thickness of precast concrete slab, truss mesh shape, and type of loadings. Test results show that the flexural strength of precast concrete slab in reverse loading is lower than the design strength, but the flexural strength of precast concrete slab, half slab and half slab-wall joint in direct loading is higher than the design srength. No horizontal cracks were found in the connection between insitu concrete and precast concrete slab. The flexural strength of half slab and half slab-wall joint was the same as that of reinforced concrete members. This study concludes that there will not be any structural problem in using a half slab reinforced by truss mesh if props spacing of 2.0m-2.5m, cleanness, and rough finishing between precast concrete and insitu concrete slab are kept.