Structural Behaviour of Demountable HSS Semi-Rigid Composite Joints with Precast Concrete Slabs

摘要

This paper investigates the structural behaviour of an innovative beam-to-column composite semi-rigid joint with deconstructable post-installed friction-grip bolted shear connectors and Grade S690 high strength steel flush end plates. Non-linear continuum-based finite element models are developed and validated against the results of four full-scale laboratory tests of this innovative joint. The validated finite element models are used for conducting an extensive parametric study in which the effects of the reinforcement ratio, thickness of the precast concrete slab, degree of shear connection, size of the bolts in the connection zone and thickness of the flush end plate on the structural behaviour of a composite joint with deconstructable post-installed friction-grip bolted shear connectors and Grade S690 high strength steel flush end plates are investigated.