Load and fire test data on steel-supported floor assemblies

摘要

Information gained from standard load and fire tests on eleven steel-supported constructions is presented. An elastic analysis of an idealized composite steel-concrete beam is developed, and a definition for the degree of composite action inherent in test specimens is proposed. The restraint afforded by the test frame and it simportance to continued composite action during the fire test are examined. The degree of composite action is calculated for a number of assemblies, and the mechanism of load failure during fire test is discussed briefly. Using this information, some aspects of present fire test practice are examined and possible improvements are suggested.