Study Of The Reinforced Concrete Deep Beam’s Shear-bearing Capacity Behavior After Fire

The deep beam is defined as a simple beam that the span-depth radio is less than2, or asa coupling beam that the span-depth radio is less than2.5. The structural performance of deepbeam is different of the general beam because of the nearly between the depth and the span,and the performance of deep beam under high temperature is different of the general beam,too.Nowdays, the research about the shear performance of general beam under hightemperature is rich, but the research of deep beam is less than the general beam. In this paper,according to the situation of the study, combining the predecessors of the existing researchresults, the shear strength of deep beam with high temperature will be researched,and theinfluence factors of the shear strength of deep beam with high temperature will also beresearchedThe thesis will research by ANSYS and ANSYS Workbench, and its method is givenparameters, it means that changing one of the parameters when the other parameters arechangeless, and determine the effection of the parameter for the shear behavior of deepbeams.The thesis analyzes the temperature field of the section of deep beams by ANSYS indifferent temperature and time. And it analyzes the shear behavior of the deep beams in hightemperature and room temperature by ANSYS Workbench, the results prove that the shearbehavior of the deep beams will become higher when the concrete strength and reinforcementratio become higher, and it will be lower when the temperature and time increase. The shearbehavior of the deep beams in room temperature is stronger than it under high temperature.