INFLUENCE OF LAPS OF WELDED WIRE MESHES ON BENDING RESISTANCE AND FAILURES OF RC SLABS AT HIGH TEMPERATURE

This paper describes influence of laps of welded wire mesh on bending resistance and failures of RC slabs at high temperatures by carrying out high temperature loading tests for one way RC slabs, varying the lap length and the temperature of the lap. The test result indicated that RC slabs for the lap length of the mesh interval plus 50 mm transfer sufficient tensile stress at the lap up to 550 °C and prevent brittle failure of the lap. Test result of the bending resistance is more than the calculation result determined by the yield stress of welded wire mesh.