钢筋混凝土板受火性能的试验研究-结构工程专业论文.docxVIP

亘室堡篁型塑查兰堕主堕壅圭堕塞The 亘室堡篁型塑查兰堕主堕壅圭堕塞 The Experimental Research Of Reinforced Concrete Slab Specialty：Structural Engineering Nmae：Chen Ligang Supervisor：Dong Yuli ’rhis dissertation generalizes the test on the full—scale reinforeed concrete simply-supported slabs and three-span continuous slabs under fire at the normal loading condition．nlc conclusion Call 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 ale analyze正As for the simply-supported slabs，the influence ofthe specimen fire proof properties is tested under the different concrete intensified degrees，under the different thickness ofcover and under the different concrete quota． As鼬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 eapability 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 fumace 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 ofthe test，the analysis is conducted to the slabs section temperature field by the finite clement analysis program ANSYS．The analysis result is consistent wim the test result．Finallg the comp