| This dissertation generalizes the test on the full-scale reinforced concrete simply-supported slabs and three-span continuous slabs under fire at the normal loading condition. The conclusion can be drawn from the test about the deformation of the both kinds of slabs and the specimen section temperature distribution. Meanwhile, the failure modes, mechanism and internal force redistribution of the continuous slabs are analyzed. As for the simply-supported slabs, the influence of the specimen fire proof properties is tested under the different concrete intensified degrees, under the different thickness of cover and under the different concrete quota. As far as the three-span continuous slabs are concerned, a series of analysis are conducted, including the specimen internal force redistribution under the different fire condition, the specimen deformation properties, features of the specimen destroying mechanism and the fire proof capability under the various condition. Many useful conclusions can be drawn from this test. The comparison is made between the features of the statically indeterminate structures and the extra-statically ones under the higher temperature and normal temperature.The furnace for the test is the oil-burner that is designed and produced by ourselves. The whole test process is undertaken in the modeled standard temperature curve. The result of the test demonstrates that the properties of the furnace are stable and convenient for use. The measurement method and its corresponding transducers used in the test are reliable in the measurement of the redundant reactions of extra-statically indeterminate structures.On the basis of the test, the analysis is conducted to the slabs section temperature field by the finite element analysis program ANSYS. The analysis result is consistent with the test result. Finally, the comparison is made between the test result and theanalysis to the simply-supported slabs, to the continuous slabs by the ANSYS program.
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