Experimental Investigate On Mechanical Property Of New HPC Multi-ribbed Composite Walls

Multi-ribbed Slab Structure, as a new structural system showing good structural property, is very potential. To evaluation the influence of material property on the mechanical response, new HPC infilled frames are studied.Thirty-four 1/2-scale lightweight concrete infilled RC frame specimens were tested under diagonal loading and laterally loading. Through approximate theoretical analyses, a simplified model was proposed. Main works:1. According to the behaviors of diagonally-loaded frames, effects of infill material property and frame stiffness on performance of infilled frames are investigated.2. Based on result of lateral actions test, gives load-deflection curves for infilled frames. Influence of aspect ratio on response of infilled frames is analyzed.3. Combining experiment with theory, a equivalent strut was used to model the stiffness of infill. Proposes a method determining the effective equivalent strut width, and present a simplified rigid frame-strut model for estimate the stiffness of infilled frames.4. By contrast with experimental values, the result of simple method is acceptable.