Experimental Study On The Behaviors Of Full-scale Two-way Reinforced Concrete Fixed Supported Slabs And Vibration Analysis Under Fire

This dissertation generalizes the test on the full-scale reinforced concrete fixed supported slabs under fire at the normal loading condition. Through the experiment,I get the regulation of the temperature distribution following the thickness of the slab under fire, the temperature of the reinforcing bar of the slab,the deformation outside the slab,and so on. Meanwhile,I examined the fact whether the way of the cracking is fit for the theories of plastical line or not,and analyzed the characteristics of the slab under the constant loads and fire.At the same time I measured the vibration characteristic under fire with the instruments,studyed the process of the variety on the characteristic,and contrasted the vibration characteristic before and after the broke.The furnace for the test is the oil-burner that is designed and produced by computer.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.Based on the test date, some conclusion is presented. The diversity of two-way reinforced fixed supported slab's destroy between normal situation from fire is presented.These results can slao be used as the basis for further theoretical analysis. At the same time, we contrasted the vibration characteristic before and after the broke, which could be used as the basis of the health monitoring.