ELASTIC EXPERIMENTAL STUDY ON STEEL-CONCRETE COMPOSITE FLOOR WITH GRID BEAMS

摘要

An investigation was conducted on the steel-concrete composite floor with grid beams at ends of which concrete slab is continuous and steel beams are hinged, by an experiment of a 1/4 scale model. Elastic experimental results indicate that steel-concrete composite floor has a wonderful mechanical performance under a service load, crack width and deformation of which satisfy the requirements. The preliminary analysis was also made in the distribution of negative moment at the end of floor. From this paper, an experimental basis is provided for the theoretical calculation and application of this floor system.