In the two last years, the furnace tests were performed on two full-size floor specimens at the Czech Technical University in Prague.Both floor specimens were 4.5 m long and 3 m wide, consisting of 60 mm fibre concrete topping on plywood formwork, connected to GL floor joists and were subjected the standard fire for over 150 min./ 60 min.The floors were partially protected.The membrane effect of the floor was activated to maintain the global resistance of the floor.Based on the performed tests is prepared a numerical model of the timber fibre reinforced concrete floor slabs in fire.The experimental research results that deal with the effect of membrane action of composite steel fibre reinforced floor slabs exposed to fire offers a new timber-concrete floor with subtle cross-section of timber beam.
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