Abstract: “This paper presents the study of service stress appear in various structural elements in the design of medium rise reinforced concrete building in Sri Lanka using selected codes. Five structural design codes have been considered for the study. Namely EN1992:2004, BS8110:1985, IS456:2000, AS3600-2009 and ACI318-2014. Comparisons of the provisions for actions, and for the resistance of sections in flexural and axial loading are carried out. The differences in the service stress in respective designs have been estimated and reported”

Keywords: service stress, reinforced concrete, medium rise building