PROS/CONS OF TRANSVERSE REBAR IN STRUCTURAL FIRE RESPONSE OF A COMPOSITE STRUCTURE

摘要

Composite slabs supported by steel frame structures are a common structural system used in the construction industry, especially for office buildings.Such designs include a variety of reinforcing bars acting as tensile reinforcement, anti-crack mesh and as "transverse rebar" to assist in developing composite connection between slabs and beams vie shear studs.Although most structural designs make use of transverse rebar for ambient design, this added reinforcement is generally omitted from structural fire assessments.During a recent commercial modelling project, the effects of transverse reinforcement were included in some of the structural fire models.The observations made when reviewing the finite element outputs are presented.The paper concludes with a discussion regarding the need to include transverse reinforcement in structural fire assessments.