Parametric study on composite steel beams with precast concrete hollow core floor slabs

摘要

This paper describes the finite element modelling of steel beams acting compositely withudproprietary precast hollow core slabs. A companion paper (Lam D, Elliott KS, Nethercot DA.udExperiments on composite steel beams with precast hollow core floor slabs. Proceedings ofudthe Institution of Civil Engineers: Structures and Buildings 1999; in press [1]) reports resultsudof full scale bending tests and compression slab tests. The finite element package ABAQUSudwas used to extend the scope of the experimental work, by first demonstrating that a 2-dimensionaludplane stress analysis is sufficiently accurate, providing that the correct material inputuddata and shear stud characteristics obtained from isolated push-off tests are used. The FEudresults are within 5% of the experimental results. An extensive parametric study was carriedudout to investigate the flexural behaviour of composite beams with variations in transverseudreinforcement ratio, stud spacing and steel UB section.