STRUCTURAL BEHAVIOUR OF SLIM FLOOR SLABS WITH PRESTRESSED HOLLOW CORE ELEMENTS AT ROOM TEMPERATURE AND IN FIRE

摘要

Slim floor composite slabs are made of asymmetric steel beams with a wide lower flange supporting composite decks with profiled steel sheets or prefabricated concrete elements (mainly precast hollow core elements). The gap between steel beam and hollow core elements is filled with concrete. Models for the fire behaviour of slim floor slabs with hollow core elements were developed and checked with 6 fire tests and 65 tests at room temperature.