Full-Scale Floor System Testing for Future Hot-Rolled Asymmetric Steel I-Beams

The presented study conveys the initial full-scale experimental for future hot-rolled asymmetric steel I-beams, termed A-shapes. primary use these beams is residential building floor systems. Current systems commonly utilize concrete solutions, which achieve a shallow depth optimal floor-to-floor heights. However, are relatively slow to construct because of amount formwork, rebar and post-tensioning placement, shoring needed. shallow-depth steel-concrete system concept explored in this research aims improve speed efficiency construction. This increase achieved through A-shapes, reduce fabrication time beam production. These shapes have wide bottom flange that can support precast panels or deep metal decking. Therefore, easy assemble be achieved. herein includes feasibility testing further knowledge A-shape performance such evaluated consisted three hollow-core panels, cast-in-place topping slab. involved taking measurements during construction, service live loading, loading failure. major unknowns were constructability, stability load performance, composite behavior. experiment revealed was constructed easily rapidly also remained stable performed well under load, experiencing deflections equivalent L/3,000. failed due bond breaking between steel, going noncomposite after partially occurred at an actuator five times design load. All indicates using A-shapes legitimate path forward faster construction facilities. validates need toward standardized United States.