A Study of Reinforced Concrete Element under the Action Long-term Loading

The present study addresses the calculation of the long-deflection of reinforced concrete beams under concentrated load in mid span using different standard such as Russian code and ACI standard, compared with actual beam test result and the result of calculation in computer program ANSYS. By divided different calculate deflection according to Mechanical Method, Gilbert’s Method and ANSYS program. The result we got a difference deflection depending by timed. Then compared the result of the beam deflection according to Mechanical Method, Gilbert’s Method with actual beam test result and compared with the result of deflection by using ANSYS.
As result shown that, when compared with actual beam test result and different method such as Mechanical method, Gilbert method and computer program ANSYS got result of calculation different value is slightly biased. The result of deflection by Mechanical method compared with actual beam test were different 17.9%, Compared between Gilbert method and actual beam test were different 13.4% and compared the result of calculation deflection in ANSYS were different 14%. However, the results different less than 20% that permitted for these values.