钢筋混凝土T梁受弯性能试验与数值模拟研究OA

To investigate the bending performance of reinforced concrete T-beams,a 3.6-meter-long T-beam experimental model was designed and analyzed by using both model testing and finite element analysis techniques.The findings indicate that the bending failure mode of concrete T-beams differs from that of concrete rectangular beams,primarily due to steel bars yielding and the absence of further load increase.When the T-beam is damaged,the concrete in the compression zone has entered the plastic stage,but has not reached the ultimate compressive strain.The bending damage mode and load-deformation curve obtained by nonlinear finite element analysis are in good agreement with the experimental test results,the relative error between the simulated value of the ultimate load and the experimental value is 4.52%,and the finite element simulation method used in the paper can accurately simulate the bending behavior of reinforced concrete T-beam.