Precast steel-concrete hybrid composite structural frames with monolithic joints

Abstract The floor depth reduction capability of the hybrid beams are introduced, enabling to add one additional floor for every 20 floors without altering the overall height of the building. The fireproofing necessary for all-steel sections are eliminated while preserving many of the merits of the steel and concrete materials. Steel-concrete hybrid composite precast frames have demonstrated that they can be assembled as rapidly as the steel frames to shorten construction periods while improving productivity and quality. The precast composite frame has been shown to provide a reduction in reinforcement, concrete, formwork and steel quantities relative to the traditional structural systems. The construction resources, CO2 emissions, and construction wastes with construction costs were also shown to be reduced. The sustainability and resiliency were demonstrated contributing to facing the climate change issues.